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浙江大学学报(工学版)
J4  2012, Vol. 46 Issue (12): 2194-2200    DOI: 10.3785/j.issn.1008-973X.2012.12.009
能源工程     
发动机冷却模块振动优化
杨骥1, 郝志勇1, 葛如炜2, 郑康1, 郑旭1
1.浙江大学 能源工程学系,浙江 杭州 310027; 2. 泛亚汽车技术中心有限公司,上海201201
Optimization of engine cooling module vibration
YANG Ji1, HAO Zhi-yong1, GE Ru-wei2, ZHENG Kang1, ZHENG Xu1
1. Department of Energy Engineering, Zhejiang University, Hangzhou 310027, China;
2. Pan Asia Technical Automotive Center Co., Ltd, Shanghai 201201, China
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摘要：

针对某轿车搭载直列四缸(L4)发动机型在发动机怠速开空调且冷却风扇处于最高转速2 470 r/m时,方向盘(SW)振动剧烈的问题,对减振连接点和SW的振动进行了振动试验测量,识别出了影响该工况下SW振动的主要因素.运用数值仿真,分析了由冷却模块（CRFM)引起的振动,CRFM系统振动特性数值分析模型的搭建,借助于能量解耦理论和NewmarkBeta算法,该模型可分析CRFM搭载不同减振块组合后的模态频率及其在车架振动和风扇振动激励下的响应.振动优化针对搭载不同刚度性能减振连接块的CRFM振动特性进行仿真分析,优化后的CRFM可避开外部激励主要频段，且振动响应较小.
Abstract:

 The steering wheel (SW) of an automobile with L4 engine vibrates greatly, when the engine is idling with air conditioner working and cooling fan rotating at its top speed 2 470 r/min. Series of experiments were taken to test the vibration of isolators’ connecting points and the SW so that the factors influencing SW vibration under specific working conditions could be identified. The vibration induced by the engine condenser-radiator-fan module (CRFM) was analyzed by numerical simulation. The numerical model of CRFM vibration was established with the help of energy decoupling and Newmark-Beta methodology, which could analyze the modal frequencies and vibration response of CRFM with different isolator groups under excitation of chassis and cooling fan vibration. The optimization investigates the stiffness of CRFM isolators so that CRFM can evade the external excitation frequency band and its vibration response can be reduced.
出版日期: 2012-12-01
:  TK 413.3  
通讯作者: 郝志勇，男，教授，博导.     E-mail: haozy@zju.edu.cn
作者简介: 杨骥（1988—），男，硕士生，从事发动机虚拟仿真设计和试验工作.E-mail：passion@zju.edu.cn
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引用本文:

杨骥, 郝志勇, 葛如炜, 郑康, 郑旭. 发动机冷却模块振动优化[J]. J4, 2012, 46(12): 2194-2200.

YANG Ji, HAO Zhi-yong, GE Ru-wei, ZHENG Kang, ZHENG Xu. Optimization of engine cooling module vibration. J4, 2012, 46(12): 2194-2200.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2012.12.009    或    http://www.zjujournals.com/eng/CN/Y2012/V46/I12/2194

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