摘要
针对现今客车骨架的破坏方式主要为疲劳破坏,提出了客车骨架等疲劳寿命的轻量化设计方法。以某型客车骨架为研究对象,采用有限元法对客车骨架的疲劳寿命进行数值模拟,预估客车骨架的疲劳寿命,进而对客车骨架进行基于等疲劳寿命模型的结构优化设计,骨架质量减轻5.16%,骨架各部件的疲劳寿命得到合理分配,客车骨架材料的利用率得到提高。
In the light of the fatigue damage of the bus frame, a lightweight design is performed to do the equal life of the bus frame. With the research object of a bus body frame, the fatigue life prediction of the bus frame is carried out by using the finite element method. A structure optimization design of bus frame is done based on the equal life model. The mass of the frame is reduced by 5.16%. The fatigue life of the frame components is reasonably distributed, and the utilization ratio of the bus frame material is improved.
作者
周美施
尹怀仙
张铁柱
张洪信
刘高君
Zhou Meishi Yin Huaixian Zhang Tiezhu Zhang Hongxin Liu Gaojun(Mechanical and Electronic Engineering College, QingDao University, Qingdao 266071, China)
出处
《客车技术与研究》
2016年第6期18-21,32,共5页
Bus & Coach Technology and Research
基金
国家高技术研究计划项目(2014AA052303)
山东省科技发展计划项目(2014ZZCX05501
2014GGX1 03044)
关键词
客车骨架
疲劳寿命
有限元法
等寿命模型
bus frame
fatigue life
finite element method
equal life model
