乘用车排气系统吊钩位置优化
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摘要
使用模态分析和平均驱动自由度位移法,对某乘用车排气系统吊钩位置进行分析评估,提出优化方案,采用排气系统频响分析验证优化效果。优化后各吊钩振动位移和加速度明显降低,验证该排气系统吊钩位置优化方案的合理性和可行性。
Using the modal analysis and average driving degree of freedom method,the position of the hanger of a passenger car exhaust system is analyzed and evaluated. The optimization scheme is proposed and the optimization result is verified by frequency response analysis of the exhaust system. The vibration displacement and acceleration of each hanger are obviously reduced after the optimization. The rationality and feasibility of the optimization scheme of the hanger position of the exhaust system are verified.
Using the modal analysis and average driving degree of freedom method,the position of the hanger of a passenger car exhaust system is analyzed and evaluated. The optimization scheme is proposed and the optimization result is verified by frequency response analysis of the exhaust system. The vibration displacement and acceleration of each hanger are obviously reduced after the optimization. The rationality and feasibility of the optimization scheme of the hanger position of the exhaust system are verified.
引文
[1]黄志发.乘用车排气系统振动特性分析与优化[D].重庆:重庆大学,2015.
[2]赵天孟.汽车排气系统振动疲劳特性特性研究[D].南宁:广西大学,2016.
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[8]王春慧.排气系统悬挂引发汽车NVH问题研究[J].汽车技术,2009(S1):74-76.DOI:10.3969/j.issn.1000-3703.2009.12.020.
[9]傅志方,华宏星.模态分析理论及应用[M].上海:上海交通大学出版社,2000:40-153.
[10]杨万里,陈燕,邓小龙.乘用车排气系统模态分析数值模型研究[J].三峡大学学报(自然科学版),2005,27(4):345-347.DOI:10.3969/j.issn.1672-948X.2005.04.015.
[2]赵天孟.汽车排气系统振动疲劳特性特性研究[D].南宁:广西大学,2016.
[3]GALINDO M M.Science&technology designing exhaust systerms[DB/OL].(2003-05-05)[2018-03-20].https://www.sae.org/publications/technical-papers/content/2003-01-1656/.
[4]RAO M D,WIRKNER K J,GRUENBERG S.Dynamic characterization of automotive exhaust isolators[J].Proceedings of Institution of Mechanical Engineers:Part D:Journal of Automobile Engineering,2004,218(8):891-900.DOI:10.1243/0954407041581110.
[5]姚运仕,马芳武,冯忠绪,等.汽车排气系统悬挂点影响车内噪声的研究[J].郑州大学学报(工学版),2011,32(4):30-33.DOI:10.3969/j.issn.1671-6833.2011.04.008.
[6]赵海澜,顾彦.汽车排气系统悬挂点优化[J].计算机辅助工程,2006,15(S1):230-231.DOI:10.3969/j.issn.1006-0871.2006.z1.075.
[7]田育耕,刘江华,王岩松,等.汽车排气系统振动模态分析及悬挂点优化[J].辽宁工程技术大学学报(自然科学版),2009,28(6):995-998.DOI:10.3969/j.issn.1008-0562.2009.06.035.
[8]王春慧.排气系统悬挂引发汽车NVH问题研究[J].汽车技术,2009(S1):74-76.DOI:10.3969/j.issn.1000-3703.2009.12.020.
[9]傅志方,华宏星.模态分析理论及应用[M].上海:上海交通大学出版社,2000:40-153.
[10]杨万里,陈燕,邓小龙.乘用车排气系统模态分析数值模型研究[J].三峡大学学报(自然科学版),2005,27(4):345-347.DOI:10.3969/j.issn.1672-948X.2005.04.015.