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时间:2018-12-14
《基于proe的液压挖掘机工作装置运动仿真毕业设计(论文)word格式》》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、基于Pro/E的液压挖掘机工作装置运动仿真近年来,集挖掘和装载功能于一体的液压挖掘机在基础建设和民用建筑建设中的使用与日俱增。由于液压挖掘机的工作条件比较恶劣,工作装置故障较多,造成整机工作可靠性较差,因此挖掘机的可靠性和最优化设计成为国产挖掘机设计的重点和难点。本文以某国产22t挖掘机为例,探讨在Pro/E软件环境下,对挖掘机工作装置进行三维实体建模、虚拟装配、运动仿真与动态模拟,为挖掘机物理样机的制造、新机型设计方案的评估提供有效参考数据。1、挖掘机虚拟样机的建立1.1挖掘机三维零件模型的建立一般来说,在Pro/E软件环境下,机
2、械系统的三维建模应该严格按照设计构思或者前期图纸为依据进行,尽量保持三维图形数据的完整和正确性。由于本文将进行挖掘机虚拟样机的动力学分析和工作装置的有限元分析,因此此次建模原则是:挖掘机工作装置建模尽量细化,包括动臂、斗杆等的内部加强筋等需详细建模,而除工作装置以外的部件,在建模时则尽量简化,比如回转平台、行走装置等只是勾画出外部形状,而内部细节并未详细绘制,但在动力学分析时,其转动惯量、质量等依据设计数据进行。建立挖掘机工作装置虚拟样机的过程如图1所示。1.2挖掘机虚拟样机的装配Opinionsandsuggestionsonth
3、eparty'smasslineeducationalpracticeAccordingtothecentralandprovincial,municipalunifieddeployment,accordingtomunicipalPartycommittee"aboutcarryingouttheparty'smasslineeducationalpracticeactivityinthecity'simplementationopinions,thespiritoftheparty'smasslineeducationalpr
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6、eereally,opinionsandadvice><<>,7、rryingforwardthespiritofZhuanglangZhuang,improvetheirworkstyle,servicetothemassesofthepeople,thefoundationofconsolidatinggrassroots,promotetransformationacrossefforts,tofurtherimplementthecentraleightregulationsand8、ns","doublesection"provincialregulations,municipalprovisionsofthe"twelve"planandtheimplementationmeasuresfor
7、rryingforwardthespiritofZhuanglangZhuang,improvetheirworkstyle,servicetothemassesofthepeople,thefoundationofconsolidatinggrassroots,promotetransformationacrossefforts,tofurtherimplementthecentraleightregulationsand8、ns","doublesection"provincialregulations,municipalprovisionsofthe"twelve"planandtheimplementationmeasuresfor
8、ns","doublesection"provincialregulations,municipalprovisionsofthe"twelve"planandtheimplementationmeasuresfor
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