摘要
排气系统的振动必然会引起汽车整车的振动和噪声,从而影响汽车的整车性能,特别是在汽车乘坐舒适性方面表现得尤为严重。利用SolidWorks工具建立排气系统的简化模型,对其进行频率有限元分析,研究在一定频率范围内,影响振幅和噪音的主要因素,通过改变排气系统挂钩吊耳的悬挂位置,减小排气系统的最大振幅,实现对排气系统进行优化设计。根据计算分析得出减小排气系统振动的优化方案,确定排气系统挂钩吊耳的最佳安装位置,为汽车排气系统或其他零件的设计和安装提供一种现代设计方法。
The vibration of the exhaust system will definitely lead to automobile vibration and noise, which without doubt will affect the automobile performance and especially the comfortableness of cars.The exhaust system model by the application software of the SOLIDWORKS is established. Using the finite ele- ment analysis of frequency can research the relationship between lugs hanging position and amplitude in a certain frequency range. To reduce the maximum amplitude of the exhaust system may rely on changing the hanging position of lugs of the exhaust system. Thus we obtain the method of reducing vibration of the ex- haust system.Finally the optimization scheme can be realized by reducing the exhaust system vibration and the best hanging position of lugs for the exhaust system,aud providing a feasible method for the design and installation of the exhaust system or other parts.
出处
《机械设计与制造》
北大核心
2012年第10期59-61,共3页
Machinery Design & Manufacture
基金
金陵科技学院基金资助项目(jit-n-201106)
