摘要
本文利用optistruct对压缩机铸铝支架进行了拓扑优化分析,并分析了不同网格尺寸和惩罚因子对拓扑优化结果的影响,成功使压缩机铸铝支架重量降低了54.4%。通过对压缩机拓扑优化方案进行模态、强度和耐久试验,试验结果表明:模态锤击试验一阶模态结果为247.5Hz,满足压缩机支架240Hz的模态目标值要求,并顺利通过了台架振动试验和整车道路耐久试验,满足压缩机支架对结构强度和耐久疲劳的要求。上述轻量化分析结果和三项试验验证结果对于今后铸铝支架的轻量化提供很好的技术路线和借鉴意义。
In this paper,the topology optimization analysis of the compressor cast aluminum supportsupport have been carried out by using optimization,and the influence of different mesh sizes and penalty factors on the topology optimization results have been analyzed,the weight of the compressor cast aluminum support was successfully reduced by 54.4%.The results of the modal,strength and durability tests of the compressor topology optimization scheme showed that the first-order modal result of the modal hammering test was 247.5Hz,which met the modal target value requirements of the compressor support of 240Hz,and the improved scheme successfully passed the bench vibration test and the vehicle road durability test,which meeting the requirements of the compressor support for structural strength and durability fatigue.The above lightweight analysis results and three experimental verification results have provided a good technical route and reference significance for the lightweight of cast aluminum brackets in the future.
作者
毕朋飞
BI Peng-fei(JiangLing Motors Co.,Ltd.,Nanchang 330200,China)
出处
《汽车科技》
2023年第4期29-34,共6页
Auto Sci-Tech
关键词
轻量化
拓扑优化
压缩机支架
Lightweight
Topological Optimization
Compressor Support
