复合材料科学与工程 ›› 2025, Vol. 0 ›› Issue (11): 131-136.DOI: 10.19936/j.cnki.2096-8000.20251128.016

• 工程应用 • 上一篇    下一篇

基于多目标遗传算法的复合材料轨枕试验工装优化设计

许琛, 张庆凯, 秦俊飞*, 黄承   

  1. 中国船舶集团第七二五研究所 洛阳双瑞橡塑科技有限公司,洛阳 471000
  • 收稿日期:2024-09-18 出版日期:2025-11-28 发布日期:2025-12-24
  • 通讯作者: 秦俊飞(1987—),男,硕士研究生,工程师,研究方向为复合材料结构分析,qin_junfei@163.com。
  • 作者简介:许琛(1988—),男,硕士研究生,工程师,研究方向为结构力学和高分子材料。

Optimization design of test tooling for composite sleeper based on multi-objective genetic algorithm

XU Chen, ZHANG Qingkai, QIN Junfei*, HUANG Cheng   

  1. Luoyang Ship Material Research Institute, Luoyang Sunrui Rubber & Plastic Science and Technology Co., Ltd., Luoyang 471000, China
  • Received:2024-09-18 Online:2025-11-28 Published:2025-12-24

摘要: 某复合材料枕木设计荷载约为1 000 kN,根据中国铁路总公司规定,复合材料枕木须满足枕木成品弯曲荷载作用下变形要求。因此,须设计合理的加载工装,以满足加载要求。本文基于材料力学理论以及Kriging模型,建立了加载工装目标参数对不同截面尺寸的响应面,在此基础上采用多目标遗传算法对其进行了多目标优化,最终获得了最优的加载工装截面尺寸组合。并根据优化后截面尺寸,借助有限元软件计算了工装的抗弯曲性能。结果表明,该加载工装可以承受100 t的荷载而不发生塑性变形。

关键词: 复合轨枕工装, 弯曲荷载, Kriging模型, 响应面, 多目标遗传算法, 结构优化

Abstract: A composite sleeper’s design load is 1 000 kN, it must meet deformation requirements of sleeper’s bending load. So the test tooling must be designed to meet the requirements of bending load. This paper established the response surface of target parameters to section sizes based on the theory of material mechanics and Kirging model. Based on this, the tooling was obtained by multi-objective genetic algorithm, and finally, was obtained the optimal combination of tooling’s section size. Then bending resistance of the tooling was calculated according to optimized section sizes by FEM. Thereafter, the tooling was manufactured based on the optimized section sizes. The result show that this tooling did not create any plastic deformation with a 1 000 kN load.

Key words: composite rail sleeper tooling, bending load, Kriging model, response surface, multi-objective genetic algorithm, structure optimization

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