摘要
以某摩托车数字样机为基础,在Hypermesh中建立了车架的有限元模型,利用MSC.Nastran进行了车架模态分析,得到车架的模态结果文件和模态中性文件.利用车架的模态中性文件以及整车CAD模型,在ADAMS中形成虚拟整车台架试验的多体动力学模型,并进行了仿真,得到车架各阶模态对应的应力形状时间历程文件。在MSC.Fatigue中读入车架模态结果文件和车架应力形状时间历程文件计算出了车架的疲劳寿命。
The finite element model is established in Hypermesh on the basis of a motorcycle model.The result file of the modal analysis and modal neutral file of motorcycle structure are generated through modal analysis in Nastran.Then a rigid-flexible coupling multi-body dynamics model is created in ADAMS by using the modal neutral file and the CAD model of motorcycle.DAC files of body are generated after multi-body dynamics analysis.In MSC.Fatigue,the fatigue life analysis of the structure is executed using the result file of the modal analysis and DAC mode file.
出处
《小型内燃机与摩托车》
CAS
北大核心
2011年第5期23-26,共4页
Small Internal Combustion Engine and Motorcycle
基金
重庆市教委科研基金资助项目(KJ090610)
