| 轨道扣件弹性垫板结构优化设计 |
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| 引用本文： | 朱泓吉,卜继玲,王永冠,龙腾蛟.轨道扣件弹性垫板结构优化设计[J].计算机辅助工程,2016,25(5):18-21. |
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| 作者姓名： | 朱泓吉 卜继玲 王永冠 龙腾蛟 |
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| 作者单位： | 湘潭大学 机械工程学院;湘潭大学 机械工程学院;株洲时代新材料科技股份有限公司;株洲时代新材料科技股份有限公司 |
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| 摘 要： | 采用OptiStruct对某型铁路扣件轨下垫板进行拓扑优化和自由形状优化，实现垫板结构轻量化设计.根据优化空间最大化原则，对垂向载荷工况进行拓扑优化、对极限载荷工况进行自由形状优化.使用Abaqus极限载荷扣件系统仿真模型对优化后垫板结构性能进行验证评价.结果表明:优化后的垫板性能基本不变，质量减少约10%，刚度满足设计要求.优化结果可为垫板轻量化设计提供参考.
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| 关 键 词： | 轨道 弹性垫板 轻量化设计 结构优化 拓扑优化 自由形状优化 |
| 收稿时间： | 2016/3/12 0:00:00 |
| 修稿时间： | 2016/6/18 0:00:00 |
Optimization design on elastic pad structure used in railway fastener |
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| ZHU Hongji,BU Jiling,WANG Yongguan and LONG Tengjiao.Optimization design on elastic pad structure used in railway fastener[J].Computer Aided Engineering,2016,25(5):18-21. |
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| Authors: | ZHU Hongji BU Jiling WANG Yongguan and LONG Tengjiao |
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| Affiliation: | School of Mechanical Engineering, Xiangtan University;School of Mechanical Engineering, Xiangtan University;Zhuzhou Times New Material Technology Co., Ltd.;Zhuzhou Times New Material Technology Co., Ltd. |
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| Abstract: | To perform light weight design on an elastic pad of the fastener under railway, the topology and free shape optimization are performed on it. Based on the principle of maximum optimization space, the topology optimization is applied under vertical loads and the free shape optimization is applied under extreme loads. The structural performance of the optimized elastic pad is verified by the simulation model of extreme load fastener system in Abaqus. The results show that the mass of the optimized elastic pad is reduced by approximately 10% with the same performance and desired stiffness. The optimization results can provide references for the light weight design of elastic plate. |
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| Keywords: | railway elastic pad light weight design structure optimization topology optimization free shape optimization |
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