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1、Beginner'sGuidetoMachineVibrationRevision28/06/06COPYRIGHT©1999,2006CommtestInstrumentsLtd.Allrightsreserved.Nopartofthisbookmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofC
2、ommtestInstrumentsLtd.Forinformation,contact:CommtestInstrumentsLtd28-bMoorhouseAvenueChristchurchNewZealandE-mailhelp@commtest.comPrintedinNewZealand.DisclaimerInformationinthisdocumentissubjecttochangewithoutnotice.Namesanddatausedinexamplesarefictitiousunlessotherwisenoted.Thisdocumentisdis
3、tributedasis,withoutwarrantyofanykind,eitherexpressedorimplied,respectingthecontentsofthisdocument,includingbutnotlimitedtoimpliedwarrantiesforthedocument’squality,performance,merchantability,orfitnessforanyparticularpurpose.NeitherCommtestInstrumentsLtdnoritsemployees,dealers,ordistributorssh
4、allbeliabletotheuserofthisdocumentoranyotherpersonorentitywithrespecttoanyliability,loss,ordamagecausedorallegedtobecauseddirectlyorindirectlybythisdocument.TrademarkNoticevb™andPROFLASH™aretrademarksofCommtestInstrumentsLtd.vbSeries®andAscent®areregisteredtrademarksofCommtestInstrumentsLtd.Ot
5、hertrademarksandregisteredtrademarksbelongtotheirrespectiveowners.iiContentsForeword.......................................................................1Section1:WhyisMonitoringVibrationImportant?..2WhatisMachineVibration?.....................................................3WhatCausesMachi
6、neVibration?............................................5(a)RepeatingForces...................................................................5(b)Looseness..............................................................................7(c)Resonance................................................
7、..............................8WhyMonitorMachineVibration?...........................................10(a)SevereMachineDamage.....................................................11(b)HighPowerConsumption.................................