文档介绍：74 FLU ID MACH INERY Vol138, No16, 2010
文章编号: 1005) 0329( 2010) 06) 0074) 04
空调器压缩机配管有限元建模研究
黄辉, 苏玉海, 王继承
(珠海格力电器股份有限公司, 广东珠海 519070)
摘要: 空调器压缩机配管由薄壁紫铜管折弯后焊接而成, 折弯后铜管的壁厚发生变化, 并存在残余应力, 对空调器配
管的模态产生影响。采用显式动力学方法对铜管的折弯过程进行了模拟, 获取折弯铜管回弹后的壁厚和残余应力, 然后
进行了模态分析, 同时对折弯的铜管进行模态测试。一致性分析显示, 采用了壁厚变化和残余应力的有限元模型, 同试
验测试的模态吻合。
关键词: 空调器; 折弯铜管; 模态; 有限元模型
中图分类号: TB65 文献标识码: A do:i 10. 3969 / .j issn. 1005- 0329. 2010. 06. 017
R esea rch on FE M ode l of P ip es U sed in the A ir Cond ition er Un its
HUANG H u,i SU Yu2ha,i WANG J i2cheng
(GREE electric app liances, INC. of ZhuH Zhuha i 519070, Ch ina)
Abstrac t: P ipes of a ir conditioner are m ade up of the bended thin- she ll copper p ipes. The bended p ipe has varia tiona l thick2
ness and prestress, which a ffect the moda l of the p ipes. the process of bend ing p ipe is sim ulated with explic it m ethod, and the
p ipe s' springback process is a lso sim ulated. The natura l frequenc ies of the copper p ipes w ith va riational th ickness and prestress
are ca lcu la ted pared w ith the test data. The correlation ana lysis results indicate that the m oda l pa rarm e ters ofFE m ode l
considered the variationa l thickness and prostress are consistent wellw ith the test m ode l param ete rs.
K ey word s: a ir conditioner; bended p ipe; moda;l FE mode l
1 前言弯时壁厚的真实变化和预应力存在的情况。
本文采用显式动力学方法对铜管的折弯过程
空调器压缩机配管是由薄壁紫铜管弯制后,