不同工况下液压插销升降系统定环梁建模策略及有限元分析
Modeling Strategy and Finite Element Analysis of Fixed Ring Beam of Hydraulic Yoke and Pin Jacking System under Different Working Conditions
赵世琏 1杨龙霞 2田崇兴 1龚云 1邓子健1
作者信息
- 1. 武汉船用机械有限责任公司,武汉 430084
- 2. 上海船舶设备研究所,上海 200031
- 折叠
摘要
为了研究液压插销式升降系统定环梁在不同工况下结构强度,基于载荷传递路径分析、多点约束(MPC)方程,利用不同工况下建模策略开展定环梁有限元分析,并结合船级社规范开展校核验证.结果表明,升降系统的定环梁作业要根据载荷传递路径采取不同的建模策略;MPC方法相比于共节点的方法,克服了不同单元、不同结构交界面处节点不兼容的问题,能够有效的降低网格离散化过程中所消耗的时间,提高计算效率,节约计算资源;结构的校核需要考虑工况组合、应力集中系数、材料系数等综合因素后作出评定.研究成果可为不同工况下液压插销升降系统定环梁的分析校核提供参考.
Abstract
In order to study the structural strength of the fixed ring beam of the hydraulic yoke and pin jacking system under different working conditions based on the load transfer path analysis and the multi-point constraint(MPC)equation,the finite element analysis of the fixed ring beam is carried out by using the modeling strategy under different working conditions,and combined with the classification society standards to carry out verification.The results show that different modeling strategies should be adopted according to the load transfer path in the fixed ring beam operation of the jacking system.It overcomes the problem of incompatible nodes at the interface of different elements and structures,and can effectively reduce the time consumed in the process of grid discretization,improve computational efficiency and save computational resources.The evaluation of the structure should take into account the combination of working conditions,stress concentration coefficient,material coefficient and other comprehensive factors.The research results can provide a reference for the analysis and verification of the fixed ring beam of the hydraulic yoke and pin jacking system under different working conditions.
关键词
升降系统/定环梁/多点约束/有限元分析Key words
jacking system/fixed ring beam/multi-point constraint(MPC)/finite element analysis引用本文复制引用
基金项目
科技部国家重点研发计划NQI专项(2021YFF0601701)
出版年
2024
NETL
NSTL
万方数据