摘要
采用有限元方法对某消声器进行模态分析,根据分析结果,以提高消声器的第1阶固有频率为目标,在OptiStruct软件中对消声器端盖进行形貌优化。根据优化分析结果,将其与制造工艺相结合,布置消声器端盖的加强筋,并对优化方案进行验证,结果表明,所得到的消声器第1阶固有频率提高了30%,优化效果明显,为消声器端盖加强筋布置提供了新的思路。
An original muffler modal was analyzed by finite element method.Based on the results of the analysis,the topography of the muffler cover was optimized by OptiStruct software.The optimization was used to improve the first natural frequency of the muffler.The optimization results were combined with manufacturing processes to arrange the ribs of muffler cover,and then optimization case was validated.Results show that the first natural frequency increases by 30%.It provides a new approach of the ribs arrangement of the muffler cover.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2011年第2期220-223,共4页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
国家863计划基金资助项目(2009AA064804)
关键词
消声器
模态分析
形貌优化
muffler
modal analysis
topography optimization
