3800轧机主传动系统扭转振动分析

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1、第1I页武汉科技大学硕士学位论文AbstractThepaperwhichisbasedontheanalysisofthemaindrivesystemofthe3800reversingmillbelongtoaroughingmillgroupinthel畀rollingmillinXiangGangfocusonthetheoreticanalysisandexperimentalinvestigationofdynamicbehaviorofthemaindrivesystem．Someachievementsofthepaperalefo

2、llowing：1．Withtheaidofthesystemofcomputerdataacquisition，wetestthetorqueofthemaindrivesystemofupanddownrollersbelongto3800reversingrollintypicalconditionincludingthetorquesignalofvariousspecificationsandgradesofstrengthofbilletinnormalcondition．Accordingwiththeabovetestedsignal

3、，weanalyzethenaturalfrequencyoftorsionalvibrationandamplificationcoefficientofthemaindrivesystem．2．Calculatethenaturalfrequencyandmodeofthetorsionalvibrationmodelofthemaindrivesystemusinglumpedmassmethod．Whatismore，thesimulationanalysisthedynamicresponseofthemaindrivesysteminth

4、enormalconditioniscardedout．Theinfluenceofthebilletbitingtimeontorqueamplificationcoefficientisobtainedthroughabovesimulationanalysis．Atthesametime，thetheoreticcalculationconsistswimthesimulationanalysis．3．Investigatethemainreasonofintensifyingthetorsionalvibrationofthemaindriv

5、esystembyanalyzingthereasonsofaffectthetorsionalvibrationofthemaindrivesystem．11lehighspeedofrolling,resultinginshortbitingtime,isthemainreasonofcausingexcessivetorque．Accordingtotheanalysis，XiangGangmakesaimprovement,decreasingtheinstantaneousspeedwhenthebilletentersthemill，le

6、adingthelowfailurerateofequipmentsandtheimprovementofqualityandquantityoftheproduct．Inbrief,theimprovementbringsenormouseconomicbenefitsandsocialbenefits．武汉科技大学硕士学位论文第1II页目录摘要⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．1Abs缸act⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．

7、II第一章绪论⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．11．1传动系统扭振研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯21．2轧机主传动系统动力学研究现状⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯31．3课题提出背景⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯61．4技术线路⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯61．5本课题研究的目的和意义⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯7第二章轧机主传动系统测试及分析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯82．1

8、测试方案⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯．82．2测试方法⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯