titleoscillationofatorsionalspring-claymore标题一扭转弹簧-大剑

《titleoscillationofatorsionalspring-claymore标题一扭转弹簧-大剑》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、Title:OscillationofaTorsionalSpringAuthor:WadeW.BernreuterLabPartner:ErinEddyDate:10/19/99Purpose:TostudytorsionaloscillationusingLabviewandcomputerdatacollection.Theory:Supposealargesymmetricrotationmasshasarotationalinertia,J,andatwistingrodhasatorsionalspringcoefficient,K.Rec

2、allthebasictorsionalrelationships.WecancalculatethetorsionalspringcoefficientusingthebasicmechanicsofmaterialsFinally,considertherotatingmassontheendofatorsionalrod.Equipment:1-tableclamp1-computerwithLabViewandMathCadsoftware1-LabViewdataacquisitioncard1-potentiometer1-weightsc

3、ale1-protractor1-25”longtorsionalspring2-24”x4”x4”aluminumbarmassesfastenedtospring1–0to3000gramweightscale1–table1-stopwatchProcedure:1.Assemblethetorsionalspringandrotatingmass.ProgramLabViewtoreadtherotationofthespringwithvaryingvoltagebymeansofthepotentiometer.Attachthepoten

4、tiometertotheaxisofrotationofthetorsionalspring.Clampthespringandmasstothetable.2.Pulltheendofthemasswithasetamountofforceasdeterminedbytheweightscaleandmeasuretheamountofrotationwiththeprotractorandvoltagedifferencefromthepotentiometer.Startrecordingthevoltageoutputofthepotenti

5、ometerwithLabViewandreleasethescale.Timetheamountthatisnecessaryfortwentyrotationsinordertodeterminethefrequencyofthetorsionalspring.3.Repeatstep2forotherforcestodeterminevariancesindataandtoensurethatlegitimatedatawasaccumalated.Results:Graphsdepictingtheoscillationsarebelowfor

6、eachforceapplied: