| 某清扫车车架结构分析与拓扑优化设计 |
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| 引用本文： | 周兵,吴崇辉,李伟平. 某清扫车车架结构分析与拓扑优化设计[J]. 微计算机信息, 2012, 0(1): 81-83 |
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| 作者姓名： | 周兵 吴崇辉 李伟平 |
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| 作者单位： | 湖南大学汽车车身先进设计制造国家重点实验室航天技术研究所 |
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| 基金项目： | 中央高校基本科研业务费:青年教师科技创新扶持项目(531107040149);湖南大学汽车车身先进设计制造国家重点实验室自主研究课题资助项目(60870002) |
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| 摘 要： | 为了提高某自卸清扫车车架的力学性能并减轻重量,建立了车架的有限元模型,对车架进行了强度和刚度校核以及模态分析。并借助LS-DYNA分析了车架中间矩形框在外力激励输入下的位移时程曲线,得到了车架的变形及变化趋势,针对车架的动态变形分析结果,对车架中间矩形框的前后横梁加强区域进行了局部拓扑优化,以减少材料使用提高车架刚度,改善了车架的动态特性。分析结果表明:车架静态强度满足工作要求,工作时路面激励及怠速不会引起车架共振。
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| 关 键 词： | 清扫车 LS-DYNA 有限元 拓扑优化 |
Structural Analysis and Topology Optimization Design for a Sweeper Vehicle Frame |
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| ZHOU Bing WU Chong-hui LI Wei-ping. Structural Analysis and Topology Optimization Design for a Sweeper Vehicle Frame[J]. Control & Automation, 2012, 0(1): 81-83 |
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| Authors: | ZHOU Bing WU Chong-hui LI Wei-ping |
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| Affiliation: | ZHOU Bing WU Chong-hui LI Wei-ping(State key laboratory of advanced design and manufacture for vehicle body,Institute of Space Technology,Hunan University,Changsha,410082,China) |
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| Abstract: | To improve the mechanical performance and reduce the weight of a sweeper vehicle frame,a finite element model for a dump sweeper vehicle frame is established to analyze strength stiffness and modal of vehicle.Displacement and time cure for vehicle rectangular frame under external force incentives is solved using LS-DYNA software.Based on the analysis results,topological optimization is carried out to reduce the materials and improve the stiffness and dynamic characters of the frame.Analysis results show that:static strength of vehicle frame satisfy working requirements,the rough road and idling speed will not make the frame resonate |
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| Keywords: | sweeper vehicle ls-dyna finite elements topology optimization |
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