主机排气阀杆受力分析和结构优化研究
翟志勇 1孙天泽 2赵益欧3
作者信息
- 1. 大连中远海运重工有限公司,辽宁大连 116113
- 2. 大连中远海运重工有限公司,辽宁大连 116113;大连海洋大学航海与船舶工程学院,辽宁大连 116023
- 3. 烟台中集来福士海洋科技集团,山东烟台 264000
- 折叠
摘要
为了分析排气阀断裂的原因,文章利用Solidworks软件建立相应的3D模型,采用有限元法对排气阀杆进行了应力分析.应力分析表明,排气阀杆最大形变发生在阀头与阀杆的连接处,发生碰撞时,阀头附近产生最大应力,随着长时间运行,会造成材料脱碳,强度降低,导致排气阀杆弯曲.文章提出了排气阀杆结构优化和材料选用的方案,使其满足工作中的可靠性要求,为排气阀结构设计提供了理论依据.
Abstract
Considering finding the reasons for the fracture of the exhaust valve,this paper established a 3D model with Solidworks software and analyzed the stress of the exhaust valve stem by adopting the finite element method.The stress analysis shows that the maximum deformation of the exhaust valve stem occurs at the joint of the valve head and the valve stem.When a collision occurs,the maximum stress occurs near the valve head.According to long-term operation,this may cause material decarbonization and strength reduction,resulting in the bending of the exhaust valve stem.This paper further proposed the structure optimization and material selection scheme to make the exhaust valve stem meet the reliability requirements in work,providing a theoretical basis for the structural de-sign of the exhaust valve.
关键词
排气阀杆/主机/应力分析Key words
exhaust valve stem/main engine/stress analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据