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RRR-RRP Ⅱ级杆组的等效体系动力学筑模与阐发

更新时间: 2019-07-28

  第37卷第3期 2007年5月 大学学报(工学版) Journal of Jilin University(Engineering and Technology Edition) VoI.37 No.3 2007 May RRR—RRPⅡ级杆组的等效系统 动力学建模取阐发 车仁炜1,陆念力1,潘志刚2 胡长胜 , (1.工业大学机电学院,150001;2.大学机械科学取工程学院,130022) 摘 要:将等效方式取无限元方式相连系,基于等效元素集成法成立了RRR—RRPⅡ级杆组的 动力学等效模子,给出了其动力学微分方程。建模时沉点确定二阶张量、三阶张量和拆卸等效 质量阵,建模过程简单、快速,通用性强。对给定的RRR-RRP六杆机构进行了求解,给出了 其动力响应曲线。通过实例表白,操纵本文方式列写微分方程或由计较机进行解算比用保守 方题效率高,填补了用保守方式对杆组前进履力学阐发时,因为系统活动关系复杂和报酬 阐发手艺差而极易犯错的缺陷。 环节词:机械设想;RRR—RRPⅡ级杆组;等效元素集成法;动力学模子 中图分类号:THl32.4 文献标识码:A 文章编号:1671—5497(2007)03—0563一06 Analysis and establishing the equiValent system dynamics mOdel of RRR—RRPⅡdegree bar-group Che Ren_weil,Lu Nian_lil,Pan Zhi—gan92,Hu Chang-shen91 (1.Sc^DDZ D,EZPc£7—07竹Pf,l口以ic口z,Hnr6i咒J挖s£i£“£e o,:hc^咒Dzogy,H口r6i咒150001,C^i咒口;2.(10zzege o,^如c^口雄ic口z SciP咒cP口咒d E挖gi咒PPri咒g,JiZi咒U矗i口Prsi£y,C,l口卵gc^“咒130022,C撬i咒n) Abstract:The equivalent method was combined with FEM in this on paper, the equiValent dynamics and the dynamics model for RRR—RRP II degree bar—group was established differential equation was given. steps tensor T乙and 3 steps the basis of EFEM Accounting the key point of building dynamic model to be setting up 2 the equivalent mass matrix. tenser:k。and assembling The process to establish dynamics model was simple and rapid and the generality is well. dvnamics model to Analyzed and solVed the the curves the RRR_RRP 6 bars mechanism that has been given, of dynamics responding of it was obtained. by this paper has describing the a It is testified by dynamic analysis example that the method presented and higher efficiency comparing with traditional method it by using as greater advantage differential easy to equation and calculating computer and having redeemed the of the defect that it is make as doing dynamic analysis because complexity of kinematics relation of system and the personal skill. Key words:mechanical design;RRR—RRPⅡdegree bar_group;EFEM;dynamics model 收稿日期:2006一07—15. 基金项目:省天然科学基金赞帮项目(F2004—15). 做者简介:车仁炜(1964一),女,副传授,博士研究生.研究标的目的:机构动力学阐发.E-mail:crw 8790@163.com 万方数据

  RRR-RRP Ⅱ级杆组的等效系统动力学建模取阐发_电子/电_工程科技_专业材料。将等效方式取无限元方式相连系,基于等效元素集成法成立了RRR-RRPⅡ级杆组的动力学等效模子,给出了其动力学微分方程.建模时沉点确定二阶张量、三阶张量和拆卸等效质量阵,建模过程简单、快速,通用性强.对给定的RRR-RRP六杆机构进行了求解,给出了其动力响应曲线.通过实例表白,操纵本文方式列写微分