汽车空调管路振动特性分析和结构优化  

Vibration Characteristic Analysis and Structure Optimization of Automobile Air Conditioning Pipeline

作　　者：张宁波 黄小如 林祥智 ZHANG Ning-bo;HUANG Xiao-ru;LIN Xiang-zhi(Guangzhou Huali Science and Technology Vocational College,Zengcheng 511325,China)

机构地区：[1]广州华立科技职业学院,广东增城511325

出　　处：《机械工程与自动化》2024年第6期53-55,61,共4页Mechanical Engineering & Automation

基　　金：2023年广东省普通高校青年创新人才类项目立项(2023KQNCX294)。

摘　　要：为研究汽车空调管路的振动性能,对空管和考虑流固耦合管路的固有频率值和变形值进行了对比分析。通过分析可知,在考虑流固耦合后管路的固有频率值明显增加,管路的最大变形部位为橡胶管部位。为提高管路的抗振性能,对比分析了橡胶管在不同壁厚时管路的固有频率和变形。通过研究发现:随着橡胶管壁厚的增加,空管和考虑流固耦合管路的固有频率也随之增加,但变形随着壁厚的增加逐渐降低。因此,增加橡胶管壁厚对提高管路抗振性能有一定的作用。In order to study the vibration performance of automobile air conditioning pipeline.The natural frequency and deformation values of empty pipe and fluid-structure coupling pipe are compared and analyzed.The analysis shows that the natural frequency value of the pipeline increases obviously after considering the fluid-structure coupling,and the largest deformation part of the pipeline is the rubber pipe.In order to improve the anti-vibration performance of the pipe,the natural frequency and deformation values of the rubber pipe under different wall thickness were compared and analyzed.It is found that with the increase of rubber pipe wall thickness,the natural frequency value of empty pipe and fluid-structure coupling pipe also increases,but the deformation value gradually decreases with the increase of wall thickness.Therefore,increasing the wall thickness of the rubber pipe has a certain effect on improving the vibration resistance of the pipeline.

关 键 词：空调管路 振动 流固耦合 模态分析 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]