| 陈得意.某客车车架结构多目标拓扑优化设计[J].汽车零部件,2014,8(10):36-37 |
| 某客车车架结构多目标拓扑优化设计 |
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| DOI： |
| 中文关键词: 车架 拓扑优化 折衷规划法 多目标优化 |
| 英文关键词: Frame Topology optimization Compromise programming method Multi objective optimization |
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| 摘要点击次数: 1519 |
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| 中文摘要: |
| 整车轻量化的设计需求目前在所有汽车行业的车型开发中占有非常重要的地位，且此需求贯穿了每个项目开发设计的整个过程。车架是整车轻量化设计的重要研究对象。基于整车轻量化设计需求，采用基于折衷规划的多目标拓扑优化设计方法，以某中型客车车架的柔度最小化为目标函数，以体积比和一阶模态频率作为约束条件，对弯扭联合工况下的车架进行结构拓扑优化设计。经计算获得满足约束条件并使车架柔度最小的车架拓扑形态，为该型客车车架提供了结构的概念化设计方法。 |
| 英文摘要: |
| The requirement of vehicle lightweight design is urgent during the vehicle research and development area, and this requirement impenetrates the whole design and development process in every vehicle project. Frame is the main target during lightweight design research. Based on the requirement of vehicle lightweight, by adopting multi objective topology method based on compromise programming, using minimized flexibility of the frame as the objective function, taking volume ratio and first order modal frequency as the constraints,the topology optimization design for the frame structure of a medium sized bus was made under the conditions of the combination of bending and torsion. After computing, the frame topology was achieved which satisfied the constraints and made the flexibility of frame minimal.It provides conceptual design method of structure for this type of bus frame. |
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