文章摘要
电动物流车厢结构设计的仿真分析
Hubei University of Automotive Technology
投稿时间:2018-03-15  修订日期:2018-03-15
DOI:
中文关键词: 车厢  轻量化  尺寸优化  拓扑优化
英文关键词: compartment  lightweight  size optimization  topology optimization
基金项目:湖北省自然科学基金项目(2013CFA092);湖北省重点实验室创新基金项目(2015XTZX0418)。
作者单位邮编
蔡甫 湖北汽车工业学院 442000
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中文摘要:
      某电动物流运输车为实现轻量化设计目标,采用铝合金轻质材料取代钢材制造车厢骨架结构。根据汽车结构和行驶环境建立满载、弯扭、加速、转弯、紧急制动五种典型工况的边界条件,进行静态性能仿真分析,对其基本振动特性进行模态分析。在确定危险工况的基础上,利用尺寸优化实现车厢的轻量化设计,实现了车厢减重12%的轻量化设计要求。进一步采用拓扑优化的方法改变车厢底骨架布置结构,获得了一种新型的满足刚度、轻量化要求的骨架结构分布方式。
英文摘要:
      An electric logistics truck in order to achieve the lightweight targets , Manufacture of Car Frame Structure with Aluminum Alloy Lightweight Material replace the steel. Then,create four typical working condition of corner,twist,turning and brake according to the structure characteristic of automobile and the driving environment to finish the work of determining load treatment and boundary condition. By using the solver of Optistruct, the static analysis and modal analysis of the finite element model under these four kinds of conditions are carried out. After determining the dangerous conditions, the size optimization method is used to reduce the weight of the carriages. Implements the carriage weight loss 12% of lightweight design requirements. then use the topology optimization method to change the original structure of the bottom frame to obtain the optimum distribution of structure,which satisfying the stiffness and lightweight requirements.
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