冷凝器两片式集液管压力交变疲劳破坏的研究  

Research on the Pressure Alternating Fatigue Failure of the Two-piece Collector Tube of the Condenser

作　　者：史宇杰 Shi Yujie

机构地区：[1]上海马勒热系统有限公司,上海201206

出　　处：《时代汽车》2025年第5期160-162,共3页Auto Time

摘　　要：汽车风冷平行流冷凝器的耐疲劳特性是一项重要指标,耐压力交变试验作为模拟冷凝器在实际整车生命周期工况的评估测试,是对冷凝器结构设计、材料选用、装配工艺以及钎焊工艺的综合评价。本文根据疲劳失效机理,指出两片式冷凝器集液管的压力交变疲劳失效的主要影响因素来自局部应力集中,并结合有限元模拟,提出了几种优化方案。The fatigue characteristic of the air-cooling parallel fl ow condenser is an important indicator,and the resistance to pressure cycle test as a simulation of the condenser in the actual vehicle life cycle conditions of evaluation test,is the design of the condenser structure,material selection,comprehensive evaluation of the assembly process and the brazing process.According to the fatigue failure mechanism,the main infl uence factor of the two-piece condenser collector pressure cycle fatigue failure comes from the local stress concentration,and the article combines with the fi nite element simulation,and proposes several optimization solutions.

关 键 词：汽车冷凝器 压力交变 疲劳失效 

分 类 号：U46[机械工程—车辆工程]