CAJ | 학술논문

汽车排气系统是汽车动力总成的重要组成部分，对汽车的振动、噪声和污染物的排放有着直接的影响，特别是影响轿车的乘坐舒适性。本文利用3D软件建立某轿车排气系统几何模型，在CAE软件hyperworks中进行参数设置、求解，完成了排气系统的安装模态分析。通过各阶频率值，分析其固有频率与发动机怠速和经济转速下激振频率之间的关系，分析结果为结构设计及优化提供依据。
기차배기계통시기차동력총성적중요조성부분，대기차적진동、조성화오염물적배방유착직접적영향，특별시영향교차적승좌서괄성。본문이용3D연건건립모교차배기계통궤하모형，재CAE연건hyperworks중진행삼수설치、구해，완성료배기계통적안장모태분석。통과각계빈솔치，분석기고유빈솔여발동궤태속화경제전속하격진빈솔지간적관계，분석결과위결구설계급우화제공의거。
Automobile exhaust system is an important component of the automotive power train,and the vibration,noise and emissions of pollutants can be influenced directly,especially in the riding comfort of a passenger car.In this paper,the ge-ometric model is established by using 3D software,in the CAE software hyperworks parameter is setted,and then solved,in the end the installation modal of exhaust system is analyzed.Through the analysis of each order frequencyˊs values,it concludes that its natural frequency is far away from the engineˊs incentives,and can be very good to avoid the resonance,and the re-sults of analysis can provide basis for structural design or follow-up the optimization.