摘要
若悬挂布置在排气系统振动较大的位置,排气系统传到车身的振动则会增大,从而影响汽车的NVH性能。为了确定某款乘用汽车排气系统合适的悬挂位置,利用ANSYS建立排气系统的有限元模型,采用平均驱动自由度位移方法(ADDOFD)来布置排气系统的悬挂点,并通过对排气系统的静力分析和约束模态分析来验证悬挂点的合理性。验证结果表明:用ADDOFD方法来布置排气系统的悬挂位置是有效的,所做仿真研究具有重要意义。
If the suspension is arranged in the position where the vibration of exhaust system is larger,the vibration transmitting from the exhaust system to the vehicle’s body will increase,which will affect the NVH performance of the vehicle.In order to determine the appropriate suspension position of the exhaust system of a passenger car,the finite element model of the exhaust system is established by ANSYS.The suspension point of the exhaust system is arranged by means of average driving freedom displacement(ADFD).The rationality of the suspension point is verified by static analysis and constrained modal analysis of the exhaust system.The results show that the ADFD method is effective in arranging the suspension position of the exhaust system,and the simulation research is of great significance.
作者
徐维维
马心坦
朱凯
XU Weiwei;MA Xintan;ZHU Kai(College of Vehicle and Transportation Engineering,Henan University of Science and Technology,Luoyang 471000,Henan,China)
出处
《噪声与振动控制》
CSCD
2020年第5期169-171,205,共4页
Noise and Vibration Control
关键词
振动与波
排气系统
悬挂位置
平均驱动自由度位移
静力分析
约束模态分析
vibration and wave
exhaust system
hanging position
average driving freedom displacement
static analysis
constrained modal analysis