部分行程顶开进气阀调节装置施力压叉的断裂失效分析
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摘要
针对大型活塞式压缩机部分行程顶开进气阀调节装置 ,分析施力压叉产生疲劳断裂失效的原因。用有限元法分析压叉片在最大受力条件下的应力分布 ,讨论施力压叉在压气循环中的运动及受力的过程 ,找出施力压叉疲劳断裂的原因。另外 ,对压叉片在动载荷作用下的安全性进行评估。
The fatigue rupture failure cause of the executing fork was analyzed for press off inlet valve of a piston compressor. The stress distribution of the fork piece in the maximum pressure condition was analyzed by using FEM,the movement and pressure processes of the executing fork were discussed in a circulation,the material performance and mechanical performance of the executing fork were analyzed.The cause of fatigue rupture failure was proposed.In addition,the safety of the fork piece was estimated in dynamic load action.
The fatigue rupture failure cause of the executing fork was analyzed for press off inlet valve of a piston compressor. The stress distribution of the fork piece in the maximum pressure condition was analyzed by using FEM,the movement and pressure processes of the executing fork were discussed in a circulation,the material performance and mechanical performance of the executing fork were analyzed.The cause of fatigue rupture failure was proposed.In addition,the safety of the fork piece was estimated in dynamic load action.
引文
1 刘生礼.压缩机进气阀部分行程顶开气量调节的理论预估:[硕士学位论文]杭州:浙江大学,2000
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4 户川隼人著殷荫龙,陈学源译振动分析的有限元法北京:地震出版社,19852～60
5 徐灏疲劳强度北京:高等教育出版社,1988443～445
2 安继儒中外常用金属材料手册西安:陕西科学技术出版社,19981282,1298,1320
3 吴荣仁,刘生礼,陆君毅压缩机进气阀部份行程顶开时缸内气体压力的计算.低温工程,200010(5)
4 户川隼人著殷荫龙,陈学源译振动分析的有限元法北京:地震出版社,19852～60
5 徐灏疲劳强度北京:高等教育出版社,1988443～445
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