主控式弹支干摩擦阻尼器-单转子系统减振特性

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关键词：转子系统；减振特性；干摩擦阻尼器；动力学建模；试验验证 中图分类号：TB535；TH133 文献标志码：A DOI：10.16385/j.cnki.issn.1004-4523.202307058

Abstract：Thevibrationreductioncharacteristicofrotorsystemwithactiveelasticsupportdryfrictiondamperis studied inthis pa per.Thedynamic modelof rotor system is establishedanda 2Dfritionmodelofcontact surfaceindryfriction damperus built. The transientand steady state dynamic responses of rotor system areobtained after dynamic equationsbeing solved byutilizing Newmark-HHTnumericalintegrationmethod.The steady statevibration signals ofdry frictiondamper rotor system underdifer entnormalloadarecompared，meanwhilethetransientdynamicresponsesofrotorsystembeforeandafterturmingondryfriction damperarestudied.Experimentaltestrigforrotorsystemanddryfrictiondamperaresetup.Thevibrationsignalsofrotorwhile passing thefirstsecondcriticalspedregionsaremeasuredandanalyzed.Thentheexperimentalvibrationsignalsarecompared withsimulationvibrationresponsestoverifythevibrationreductionefect，andthvibrationateuationcharacteristicofdrfriction damperonrotorsystemunderdiferent workingconditions isstudied.Theresultsshowthattheactiveelasticsupportdryfriction damperouldonlyatenuaterotor’svibrationwithinacertainnormalforce.Finaly，theresultscould providetheoreticalguidefor vibration control strategy on rotor system.

Keywords：rotorsystem；vibrationreductioncharacteristic；dryfrictiondamper;dynamicmodeling；experimentalerification

转子系统是高速旋转机械的核心部件。（剩余14780字）