现代制造工程 ›› 2017, Vol. 436 ›› Issue (1): 141-144.doi: 10.16731/j.cnki.1671-3133.2017.01.028

• 设备设计/诊断维修/再创造 • 上一篇    下一篇

汽车散热器散热管漏水故障分析

龚亚奇1, 杨啟梁1, 胡溧1, 张帅2   

  1. 1 武汉科技大学汽车与交通工程学院,武汉 430081;
    2 山东同创汽车散热装置股份有限公司,泰安 271000
  • 收稿日期:2015-11-01 出版日期:2017-01-20 发布日期:2018-01-10
  • 作者简介:龚亚奇,通讯作者,硕士。杨啟梁,教授,硕士,主要研究方向为汽车系统动力学、汽车噪声与振动、汽车故障与诊断。E-mail:mj8101@163.com
  • 基金资助:
    国家自然科学基金资助项目(51105283)

Analysis on the leakage of the heat pipe of the automobile radiator

Gong Yaqi1, Yang Qiliang1, Hu Li1, Zhang Shuai2   

  1. 1 College of Automobile and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430081,China;
    2 Shandong Tongchuang Auto Radiator Limited by Share Co.Ltd.,Taian 271000,Shandong,China
  • Received:2015-11-01 Online:2017-01-20 Published:2018-01-10

摘要: 针对某型散热器散热管漏水故障,利用有限元分析方法对散热器的动态应力进行了理论分析。利用CATIA建立散热器三维模型,在HyperMesh中建立散热器有限元模型,用模态试验对有限元模型的正确性进行验证,用RADIOSS求解散热器散热管的动态响应。研究表明,理论计算的散热器散热管所受最大应力的位置与故障散热器的实际漏水点相吻合,故障散热器散热管漏水是散热器在使用过程中因振动产生的应力疲劳裂纹所致。通过对散热器原有结构的改进,使散热器散热管的最大应力下降了42%,提高了散热器的使用寿命。

关键词: 散热器, 模态试验, 动态应力, 有限元分析

Abstract: In view of the leakage failure of a heat sink cooling pipe,a finite element analysis method is used to analyze the dynamic stress of the radiator.Using CATIA to establish three-dimensional model of the radiator,the heat sink finite element model is built in HyperMesh,and the correctness of the finite element model is verified by modal test,and the dynamic response of RADIOSS is used to solve the model.The research shows that the position of the maximum stress in the heat sink cooling pipe is in accord with the actual leakage point of the fault radiator,and the failure of the radiator cooling pipe is due to the stress caused by the vibration of the heat sink.Through the improvement of the original structure of the radiator,the maximum stress of the radiator cooling tube is decreased by 42%,and the service life of the radiator is improved.

Key words: radiator, modal test, dynamic stress, finite element analysis

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