城轨车防爬缓冲装置的可靠性优化研究
Research on Reliability Optimization of Anti-Crawling Buffer for Urban Rail Vehicles
孙彦彬 1田鹏宇1
作者信息
- 1. 大连交通大学 机车车辆工程学院, 辽宁 大连 116028
- 折叠
摘要
为提升防爬缓冲装置的可靠性,对防爬缓冲装置进行了可靠性优化.首先通过试验设计建立了吸能量和初始峰值力的近似模型,经确定性优化得到了pareto前沿的最优解.然后在确定性优化的基础上引入了可靠度约束并进行可靠性优化,得到了符合可靠度要求的最优解.结果表明,相比于确定性优化,可靠性优化的优势更加明显,它在对防爬缓冲装置进行耐撞性优化的同时,也保证了结构的可靠性,为工程实际中防爬缓冲装置的可靠性优化提供了参考.
Abstract
To promote the reliability of the anti-crawling buffer device,the reliability optimization of the anti-climbing buffer device is conducted in this paper.Firstly,experimental design is completed to establish the approximate models of energy ab-sorption and initial peak force,and the optimal solution of pareto frontier is successfully obtained after the deterministic optimi-zation.Then,the reliability constraints are introduced on the basis of deterministic optimization to implement the reliability op-timization;and eventually the optimal solution meeting the reliability requirements is obtained.The results show that,com-pared with the deterministic optimization,the reliability optimization not only optimizes the crashworthiness of the anti-climb-ing buffer device,but also ensures the reliability of the structure.It can offer valuable references to the reliability optimization of anti-climbing buffer device in engineering practice.
关键词
防爬缓冲器/耐撞性/确定性优化/可靠性优化Key words
anti-crawling buffer/crashworthiness/deterministic optimization/reliability optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据