欧美黑人粗暴多交高潮水最多_午夜成人鲁丝片午夜精品_久久久无码精品亚洲日韩按摩_久久久久亚洲Av片无码v

您好,歡迎訪問蘇州衡望優自動化設備有限公司!

聯系我們

蘇州衡(heng)望優自動化設備有限(xian)公(gong)司

聯系人 : 鐘先生

蘇州總部 15335287989  

                0512-66738379

武漢分部 13163337378 

郵箱(xiang)hengwang66@aliyun.com

地址;蘇州相城區(qu)渭塘鎮黃家(jia)浜路143號(hao)

振動盤知識

當前位置 : 首頁 > 關于我們

基本(ben)概念(nian)和基礎知(zhi)識 一、

常見的工程(cheng)物理量 力(li)、壓力(li)、應(ying)力(li)、應(ying)變、位移、速度、加速度、轉(zhuan)速等 

(一) 力(li)(li):力(li)(li)是物體間(jian)的相互作用(yong),是一個(ge)廣義的概念(nian)。物體承受的力(li)(li)可(ke)以(yi)有(you)加載力(li)(li), 也(ye)可(ke)以(yi)有(you)動(dong)態力(li)(li),我們常測試的力(li)(li)主要是動(dong)態力(li)(li),即給(gei)結(jie)構施加力(li)(li),激(ji)發結(jie)構的某些(xie) 特性,便于測試了解其結(jie)構特性,如模(mo)態試驗用(yong)的力(li)(li)錘(chui)。 

(二) 應力(li)應變(bian)(bian):材料(liao)(liao)或(huo)構件(jian)在(zai)單位(wei)截面上所承受的(de)垂直(zhi)作用力(li)稱為應力(li)。在(zai)外力(li)作用 下,單位(wei)長度材料(liao)(liao)的(de)伸長量(liang)(liang)(liang)或(huo)縮短量(liang)(liang)(liang),稱為應變(bian)(bian)量(liang)(liang)(liang)。在(zai)一定(ding)的(de)應力(li)范圍(wei)(彈性(xing)形變(bian)(bian)) 內,材料(liao)(liao)的(de)應力(li)與應變(bian)(bian)量(liang)(liang)(liang)成正比(bi),它們的(de)比(bi)例常(chang)數稱為彈性(xing)模量(liang)(liang)(liang)或(huo)彈性(xing)系數。 

(三) 振動(dong)位(wei)(wei)移(yi)(yi)(yi)(yi):位(wei)(wei)移(yi)(yi)(yi)(yi)就是質量(liang)塊運動(dong)的(de)(de)總的(de)(de)距離(li),也(ye)就是說當質量(liang)塊振動(dong)時,位(wei)(wei)移(yi)(yi)(yi)(yi)就 是質量(liang)塊上、下運動(dong)有多(duo)遠。位(wei)(wei)移(yi)(yi)(yi)(yi)的(de)(de)單(dan)位(wei)(wei)可(ke)以用 ?m 表(biao)示(shi)。進一步可(ke)以從振動(dong)位(wei)(wei)移(yi)(yi)(yi)(yi)的(de)(de) 時間波形推(tui)出振動(dong)的(de)(de)速(su)度和加速(su)度值。 1 可(ke)以是靜態位(wei)(wei)移(yi)(yi)(yi)(yi),可(ke)以是動(dong)態位(wei)(wei)移(yi)(yi)(yi)(yi)。通常我們測試的(de)(de)都是動(dong)態位(wei)(wei)移(yi)(yi)(yi)(yi)量(liang)。有角位(wei)(wei)移(yi)(yi)(yi)(yi)、線位(wei)(wei)移(yi)(yi)(yi)(yi) 等。 

(四(si)) 振(zhen)動速度:質(zhi)(zhi)量(liang)塊(kuai)在(zai)振(zhen)蕩過程(cheng)中(zhong)運(yun)動快慢的(de)度量(liang)。質(zhi)(zhi)量(liang)塊(kuai)在(zai)運(yun)動波(bo)形的(de)上部和下 部極限位置(zhi)時,其(qi)速度為(wei) 0,這是因(yin)為(wei)質(zhi)(zhi)量(liang)塊(kuai)在(zai)這兩點處,在(zai)它改變運(yun)動方向之前, 必須停下來。質(zhi)(zhi)量(liang)塊(kuai)的(de)振(zhen)動速度在(zai)平(ping)衡位置(zhi)處達到(dao)最大(da)值(zhi)(zhi),在(zai)此(ci)(ci)點處質(zhi)(zhi)量(liang)塊(kuai)已經加(jia)速 到(dao)最大(da)值(zhi)(zhi),在(zai)此(ci)(ci)點以后(hou)質(zhi)(zhi)量(liang)塊(kuai)開始減速運(yun)動。振(zhen)動速度的(de)單位是用 mm/s 來表示。 

(五(wu)) 振動加(jia)速(su)(su)度(du):被定義為振動速(su)(su)度(du)的(de)變化率,其(qi)單位是用有多少個(ge) m/s2 或 g 來表(biao) 示。由下圖可(ke)見加(jia)速(su)(su)度(du)最(zui)大值(zhi)處是速(su)(su)度(du)值(zhi)最(zui)小值(zhi)的(de)地方(fang),在這些(xie)點處質量塊由減速(su)(su)到(dao) 停止(zhi)然后再(zai)開始(shi)加(jia)速(su)(su)。 

(六) 轉(zhuan)(zhuan)速:旋轉(zhuan)(zhuan)機(ji)械的(de)轉(zhuan)(zhuan)動(dong)速度(du) 

(七)簡(jian)諧(xie)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)及振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)三(san)(san)要(yao)素 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)是(shi)(shi)(shi)一(yi)種運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)形式――往(wang)復運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong) 2 d=Dsin(2πt/T+Φ ) D――振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最(zui)大(da)(da)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),稱(cheng)(cheng)(cheng)為(wei)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu) T――振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)周(zhou)(zhou)(zhou)期(qi),完(wan)成(cheng)(cheng)一(yi)次(ci)(ci)全振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)所需要(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時間(jian)(jian)(jian) f――單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)時間(jian)(jian)(jian)內振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)次(ci)(ci)數(shu)(shu)(shu),即(ji)周(zhou)(zhou)(zhou)期(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)倒數(shu)(shu)(shu)為(wei)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv), f = 1/T (Hz) (1) 頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv) f 又(you)可(ke)用(yong)(yong)(yong)角頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)來(lai)表(biao)(biao)示(shi),即(ji) ω = 2π/T (rad/s) ω 和 f 的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)關系(xi)為(wei) ω = 2πf f = ω/2π (rad/s) (Hz) (2) (3) 將式(1)(2)(3)代入式可(ke)得 、 、 d = Dsin(ωt+Φ )=Dsin(2πft+Φ ) 可(ke)以用(yong)(yong)(yong)正(zheng)玄或余玄函(han)數(shu)(shu)(shu)描述(shu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)過(guo)程(cheng)(cheng)(cheng)稱(cheng)(cheng)(cheng)之為(wei)簡(jian)諧(xie)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong) 3 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)三(san)(san)要(yao)素:振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu) D、頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv) f 和相位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)Φ (八) 、表(biao)(biao)示(shi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)參數(shu)(shu)(shu):位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)、速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)、加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi): d = Dsin ? t D 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du): v = D ? cos ? t =Vsin( ? t + V= D ? 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du):a = -D ? 2sin ? t =Asin( ? t +π) A=-D ? 2 (九) 1、 ? ) 2 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)三(san)(san)要(yao)素在(zai)(zai)(zai)(zai)工程(cheng)(cheng)(cheng)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)中(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)意(yi)(yi)義 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu) ○ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu)~物(wu)體(ti)(ti)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)態運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)或振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)幅(fu)(fu)(fu)度(du)(du)(du)(du)(du)(du)。 ★ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu)是(shi)(shi)(shi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)強度(du)(du)(du)(du)(du)(du)和能(neng)量(liang)(liang)(liang)(liang)水平(ping)(ping)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)標志(zhi), 是(shi)(shi)(shi)評價機(ji)器(qi)運(yun)(yun)轉(zhuan)(zhuan)(zhuan)(zhuan)狀態優劣的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)主要(yao)指標。 即(ji)“有(you)(you)(you)(you)沒(mei)有(you)(you)(you)(you)問(wen)題(ti)(ti)看(kan)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu)” 。 ○ 峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi) 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)可(ke)以表(biao)(biao)示(shi)為(wei)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(pp) 、 單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi) (p) 有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi) 、 (rms) 或平(ping)(ping)均(jun)(jun)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi) (ap) 。 峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)是(shi)(shi)(shi)整個(ge)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)歷(li)程(cheng)(cheng)(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最(zui)大(da)(da)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),即(ji)正(zheng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng) 與負峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)之間(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)差(cha)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi);單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)是(shi)(shi)(shi)正(zheng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)或負峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng) 的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)最(zui)大(da)(da)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi);有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)即(ji)均(jun)(jun)方根值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)。 ○ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)、振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)、振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu)分(fen)(fen)別(bie)用(yong)(yong)(yong)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)、振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)、振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen) 動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)加(jia)(jia)(jia)以描述(shu)、度(du)(du)(du)(du)(du)(du)量(liang)(liang)(liang)(liang),三(san)(san)者相互之間(jian)(jian)(jian)可(ke)以通過(guo)微(wei)分(fen)(fen)或積分(fen)(fen)進行換(huan)算。在(zai)(zai)(zai)(zai)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)測(ce)(ce)量(liang)(liang)(liang)(liang)中(zhong), 除特(te)別(bie)注明外,習(xi)慣上(shang): 4 ○ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)為(wei)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)(shi)微(wei)米(mi)[μm]或毫米(mi) [mm]; ○ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)為(wei)有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(均(jun)(jun)方根值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)) ,單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)(shi)毫米(mi)/秒(miao)[mm/s]; ○ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) 的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)是(shi)(shi)(shi)單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi),單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)(shi)米(mi)/秒(miao)平(ping)(ping)方 [m/s2]或重(zhong)力(li)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) [g],1[g] = 9.81[m/s2]。 ○ 峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)、單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)三(san)(san)者之間(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)量(liang)(liang)(liang)(liang)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)關系(xi) 單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)=峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)/2, 有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)=0.707 峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)=1.414 有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)) 平(ping)(ping)均(jun)(jun)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)=0.637 峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi), 平(ping)(ping)均(jun)(jun)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)應(ying)用(yong)(yong)(yong)較少。 △ 在(zai)(zai)(zai)(zai)低(di)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)范(fan)圍(wei)內,振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)強度(du)(du)(du)(du)(du)(du)與位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)成(cheng)(cheng)正(zheng)比; △ 在(zai)(zai)(zai)(zai)中(zhong)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)范(fan)圍(wei)內,振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)強度(du)(du)(du)(du)(du)(du)與速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)成(cheng)(cheng)正(zheng)比; △ 在(zai)(zai)(zai)(zai)高頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)范(fan)圍(wei)內,振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)強度(du)(du)(du)(du)(du)(du)與加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)成(cheng)(cheng)正(zheng)比。 頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)低(di)意(yi)(yi)味(wei)著振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)體(ti)(ti)在(zai)(zai)(zai)(zai)單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)時間(jian)(jian)(jian)內振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)次(ci)(ci)數(shu)(shu)(shu)少、過(guo)程(cheng)(cheng)(cheng)時間(jian)(jian)(jian)長,速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)、加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數(shu)(shu)(shu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi) 相對(dui)較小,因(yin)此(ci)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)能(neng)夠更(geng)清晰(xi)地反映(ying)出振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)強度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)小;而(er)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)高,意(yi)(yi)味(wei)著振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong) 次(ci)(ci)數(shu)(shu)(shu)多(duo)、過(guo)程(cheng)(cheng)(cheng)短,速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)、尤其(qi)是(shi)(shi)(shi)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數(shu)(shu)(shu)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)及變(bian)化(hua)量(liang)(liang)(liang)(liang)大(da)(da),因(yin)此(ci)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)強度(du)(du)(du)(du)(du)(du)與振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) 成(cheng)(cheng)正(zheng)比。 △ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)反映(ying)了(le)(le)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)距離(間(jian)(jian)(jian)隙)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)小,振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)反映(ying)了(le)(le)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)能(neng)量(liang)(liang)(liang)(liang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)小,振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong) 加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)反映(ying)了(le)(le)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)沖(chong)擊力(li)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)大(da)(da)小。 在(zai)(zai)(zai)(zai)實(shi)(shi)際應(ying)用(yong)(yong)(yong)中(zhong): △ 大(da)(da)型旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)機(ji)械的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)用(yong)(yong)(yong)裝在(zai)(zai)(zai)(zai)軸承(cheng)座(zuo)上(shang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)渦流式位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)傳感(gan)器(qi)來(lai)測(ce)(ce)量(liang)(liang)(liang)(liang)轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)(軸)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong), 用(yong)(yong)(yong)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)移(yi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)[μm]表(biao)(biao)示(shi); △ 一(yi)般轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)設備的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)用(yong)(yong)(yong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)傳感(gan)器(qi)、 如(ru)(ru)今主要(yao)是(shi)(shi)(shi)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)傳感(gan)器(qi)在(zai)(zai)(zai)(zai)殼體(ti)(ti)上(shang)靠近軸承(cheng)處來(lai) 測(ce)(ce)量(liang)(liang)(liang)(liang),用(yong)(yong)(yong)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)[mm/s]表(biao)(biao)示(shi); △ 齒輪(lun)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)用(yong)(yong)(yong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)傳感(gan)器(qi)在(zai)(zai)(zai)(zai)殼體(ti)(ti)上(shang)測(ce)(ce)量(liang)(liang)(liang)(liang),用(yong)(yong)(yong)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)加(jia)(jia)(jia)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)(dan)峰(feng)(feng)(feng)(feng)(feng)(feng)(feng)(feng)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)[m/s2]或[g]表(biao)(biao)示(shi), 或用(yong)(yong)(yong)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)有(you)(you)(you)(you)效(xiao)(xiao)值(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)(zhi)[mm/s]表(biao)(biao)示(shi)。 2、頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv) ○ 頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv) f ~物(wu)體(ti)(ti)每秒(miao)鐘振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)循環的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)次(ci)(ci)數(shu)(shu)(shu),單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)(shi)赫茲 [Hz]。 ★ 頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)是(shi)(shi)(shi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)特(te)性的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)標志(zhi),是(shi)(shi)(shi)分(fen)(fen)析(xi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)原因(yin)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)重(zhong)要(yao)依據。 即(ji)“有(you)(you)(you)(you)沒(mei)有(you)(you)(you)(you)問(wen)題(ti)(ti)看(kan)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅(fu)(fu)(fu),什么問(wen)題(ti)(ti)看(kan)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)” 。 ○ 周(zhou)(zhou)(zhou)期(qi) T 是(shi)(shi)(shi)物(wu)體(ti)(ti)完(wan)成(cheng)(cheng)一(yi)個(ge)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)過(guo)程(cheng)(cheng)(cheng)所需要(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時間(jian)(jian)(jian),單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)(shi)秒(miao) [s] 。例(li)如(ru)(ru)一(yi)個(ge)單(dan)(dan)(dan)擺,它的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de) 周(zhou)(zhou)(zhou)期(qi)就是(shi)(shi)(shi)重(zhong)錘從左運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)到右,再從右運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)回(hui)左邊起點(dian)所需要(yao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)時間(jian)(jian)(jian)。 頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)與周(zhou)(zhou)(zhou)期(qi)互為(wei)倒數(shu)(shu)(shu),f=1/T。 對(dui)旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)機(ji)械來(lai)說(shuo),轉(zhuan)(zhuan)(zhuan)(zhuan)子(zi)每旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)一(yi)周(zhou)(zhou)(zhou)就是(shi)(shi)(shi)完(wan)成(cheng)(cheng)了(le)(le)一(yi)個(ge)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)過(guo)程(cheng)(cheng)(cheng),為(wei)一(yi)個(ge)周(zhou)(zhou)(zhou)期(qi),或者說(shuo)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong) 循環變(bian)化(hua)了(le)(le)一(yi)次(ci)(ci)。因(yin)此(ci)轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su) n、角速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) ω 都(dou)(dou)可(ke)以看(kan)作頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv),稱(cheng)(cheng)(cheng)為(wei)旋(xuan)轉(zhuan)(zhuan)(zhuan)(zhuan)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)、轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)、圓頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin) 率(lv)(lv)(lv)(lv)(lv),或 n、ω、f 不分(fen)(fen),都(dou)(dou)直接簡(jian)稱(cheng)(cheng)(cheng)為(wei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv),它們(men)之間(jian)(jian)(jian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)換(huan)算關系(xi)為(wei):f = n/60,ω=2πf= 5 2πn/60≈0.1n,其(qi)中(zhong)轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su) n 的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)為(wei)轉(zhuan)(zhuan)(zhuan)(zhuan)/分(fen)(fen)鐘[r/min],角速(su)(su)(su)(su)度(du)(du)(du)(du)(du)(du) ω 的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)為(wei)弧(hu)度(du)(du)(du)(du)(du)(du)/秒(miao)[rad/s]。 ○ 倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、一(yi)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、二(er)(er)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、0.5 倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、工頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、基頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、轉(zhuan)(zhuan)(zhuan)(zhuan)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin) 許多(duo)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)往(wang)往(wang)與轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)相關,因(yin)此(ci)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)也可(ke)以用(yong)(yong)(yong)轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)倍(bei)(bei)(bei)數(shu)(shu)(shu)來(lai)表(biao)(biao)示(shi)。 倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)就是(shi)(shi)(shi)用(yong)(yong)(yong)轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)倍(bei)(bei)(bei)數(shu)(shu)(shu)來(lai)表(biao)(biao)示(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)。 如(ru)(ru)果振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)為(wei)機(ji)器(qi)實(shi)(shi)際運(yun)(yun)行轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一(yi)倍(bei)(bei)(bei)、二(er)(er)倍(bei)(bei)(bei)、三(san)(san)倍(bei)(bei)(bei)、0.5 倍(bei)(bei)(bei)、0.43 倍(bei)(bei)(bei)、?時,則(ze) 稱(cheng)(cheng)(cheng)為(wei)一(yi)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin) (習(xi)慣上(shang)又(you)稱(cheng)(cheng)(cheng)為(wei) 1X, 1× 、 或 ) 二(er)(er)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin) (2X、 ) 三(san)(san)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin) 2× 、 (3X、 ) 0.5 倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin) 3× 、 (0.5X、 0.5× 、0.43 倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)(0.43X、0.43× 、?等。其(qi)中(zhong),一(yi)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin),即(ji)實(shi)(shi)際運(yun)(yun)行轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)又(you)稱(cheng)(cheng)(cheng)為(wei)工頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、 ) ) 轉(zhuan)(zhuan)(zhuan)(zhuan)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)、基頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin),0.5 倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)又(you)稱(cheng)(cheng)(cheng)為(wei)半(ban)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)。 例(li)如(ru)(ru),某機(ji)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)實(shi)(shi)際運(yun)(yun)行轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su) n 為(wei) 6000 r/min,那么,轉(zhuan)(zhuan)(zhuan)(zhuan)速(su)(su)(su)(su)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)率(lv)(lv)(lv)(lv)(lv)=n/60=6000/60=100Hz,其(qi)工頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)為(wei) 100Hz,二(er)(er)倍(bei)(bei)(bei)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)為(wei) 200Hz,半(ban)頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)為(wei) 50Hz。 3、相位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei) ○ 相位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)~給定時刻(ke)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)體(ti)(ti)被測(ce)(ce)點(dian)相對(dui)于(yu)固定參考(kao)點(dian)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)角位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)置,單(dan)(dan)(dan)位(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)(wei)是(shi)(shi)(shi)度(du)(du)(du)(du)(du)(du)〔° 〕進一(yi)步的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)理解 后續再介紹。 (十) 波(bo)形與頻(pin)(pin)(pin)(pin)(pin)(pin)(pin)(pin)譜的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)關系(xi) FFT 變(bian)換(huan)原理 6 FFT 變(bian)換(huan)示(shi)意(yi)(yi)圖 二(er)(er) 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)測(ce)(ce)量(liang)(liang)(liang)(liang)用(yong)(yong)(yong)傳感(gan)器(qi) 如(ru)(ru)何(he)檢測(ce)(ce)到振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)信號(hao)呢(ni)?測(ce)(ce)試系(xi)統采集的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)都(dou)(dou)是(shi)(shi)(shi)電(dian)壓信號(hao),如(ru)(ru)何(he)將物(wu)理量(liang)(liang)(liang)(liang)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)為(wei)電(dian)量(liang)(liang)(liang)(liang)呢(ni)? 這就需要(yao)各種類型的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)傳感(gan)器(qi)。 

1、 傳感器(qi)作用:傳感器(qi)就是將被測物量(liang)的變化(hua)轉換(huan)成電信號(hao)的轉換(huan)器(qi)。 

2、 傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)分類:傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)根據被測物量的(de)不同分為(wei):溫度(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)、壓力(li)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)、力(li) 傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)、應變計、振(zhen)動傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)(位移傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)、速度(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)、加(jia)速度(du)傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)) 、轉速傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)以及(ji) 噪聲傳(chuan)感(gan)器(qi)(qi)(qi)(qi)(qi)等;

 3、 傳(chuan)(chuan)感器(qi)常用(yong)技術(shu)指(zhi)標: 最(zui)常用(yong)的(de)指(zhi)標:靈敏度:傳(chuan)(chuan)感器(qi)將物理量(liang)轉換成電量(liang)后(hou),我們(men)測到(dao)的(de)是電壓,如(ru) 何知(zhi)道真實物理量(liang)變化(hua)了(le)多少呢?這就(jiu)是傳(chuan)(chuan)感器(qi)的(de)靈敏度指(zhi)標要告訴我們(men)的(de)。靈敏 度就(jiu)是單(dan)位物理量(liang)變化(hua)產(chan)生的(de)電量(liang)大小(xiao)。 如(ru)位移(yi)傳(chuan)(chuan)感器(qi)靈敏度指(zhi)標: 7.87mv/um。 單(dan) 位:V/EU

 4、 電渦流(liu)(liu)式(shi)位移傳(chuan)感(gan)(gan)器(qi)(qi) 外形圖 7 用(yong)于(yu)(yu)測量(liang)軸的(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)。 靈敏度(du)(du)(du)(du):200mv/mil=7.87mv/μ m≈8 mv 5、 電動(dong)(dong)(dong)(dong)(dong)(dong)式(shi)速(su)(su)度(du)(du)(du)(du)傳(chuan)感(gan)(gan)器(qi)(qi) 用(yong)于(yu)(yu)測量(liang)軸承座的(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)度(du)(du)(du)(du)。 靈敏度(du)(du)(du)(du):500mv/in/s = 19.6mv/mm/s 8 6、 壓電式(shi)加速(su)(su)度(du)(du)(du)(du)傳(chuan)感(gan)(gan)器(qi)(qi) 靈敏度(du)(du)(du)(du): 25mv/g Bently 公(gong)司標準型(xing) 三、 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)標準 △ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)評(ping)(ping)價 評(ping)(ping)價設(she)(she)備運(yun)行(xing)狀(zhuang)(zhuang)態是(shi)(shi)否(fou)正常、有(you)無發生(sheng)故障,除查看轉(zhuan)速(su)(su)、流(liu)(liu)量(liang)、壓力、溫度(du)(du)(du)(du)、電流(liu)(liu)等 運(yun)行(xing)參(can)數外,主要(yao)是(shi)(shi)看設(she)(she)備的(de)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)狀(zhuang)(zhuang)況,看振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)幅值的(de)大小。 ○ 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)烈(lie)度(du)(du)(du)(du) 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)烈(lie)度(du)(du)(du)(du)是(shi)(shi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)標準中的(de)通用(yong)術語,是(shi)(shi)描述一臺機器(qi)(qi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)能量(liang)狀(zhuang)(zhuang)態的(de)特征量(liang)。在國內外 振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)標準中,幾乎都規定振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)烈(lie)度(du)(du)(du)(du)的(de)度(du)(du)(du)(du)量(liang)值為振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)度(du)(du)(du)(du)的(de)有(you)效(xiao)值。因此,可(ke)以(yi)(yi)認為振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)烈(lie)度(du)(du)(du)(du) 就是(shi)(shi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)度(du)(du)(du)(du)的(de)有(you)效(xiao)值。 由(you)于(yu)(yu)只有(you)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)烈(lie)度(du)(du)(du)(du)才有(you)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)標準可(ke)以(yi)(yi)參(can)照(大機組不完全如此) ,評(ping)(ping)價機器(qi)(qi)運(yun)轉(zhuan)狀(zhuang)(zhuang)態的(de)優 劣(lie)時才能做到有(you)據可(ke)依。所以(yi)(yi)在對一般旋轉(zhuan)機械進行(xing)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)檢測時,應測量(liang)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)速(su)(su)度(du)(du)(du)(du)的(de)有(you)效(xiao)值 (而不是(shi)(shi)振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)位移) ,并(bing)要(yao)求在靠近軸承位置處(chu)的(de)水平、垂直、軸向三個方向上都進行(xing)測量(liang), 最后取最大值作(zuo)為振(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)烈(lie)度(du)(du)(du)(du)。 烈(lie)度(du)(du)(du)(du)標準 9 10 11