移动泵车车架正、反问题的数值研究

Numerical study on the forward and inverse problems of the mobile pump truck frame.

作者信息

Zhang Yu-Liang, Lin Hai-Bin, Zhu Zu-Chao

机构信息

College of Mechanical Engineering and Key Laboratory of Air-Driven Equipment Technology of Zhejiang Province, Quzhou University, Quzhou, 324000, China.

College of Mechanical and Electrical Engineering, Northeast Forestry University, Harbin, 150040, China.

出版信息

Sci Rep. 2024 Sep 2;14(1):20329. doi: 10.1038/s41598-024-71369-4.

DOI:10.1038/s41598-024-71369-4

PMID:39223226

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11368936/

Abstract

Aiming at the requirements of strong mobility and high flexibility of rescue and relief mobile pump trucks, this paper designs a new type of mobile pump truck frame based on existing mobile vehicle frame models. The materials used for the frame are 40Cr and Q235, and the finite element method is utilized to carry out static mechanical analysis and dynamic characteristic analysis. Simultaneously utilizing topology optimization and multi-objective genetic algorithm to optimize the design of the frame structure. The results show that the optimized pump truck frame can meet the strength design requirements of four typical working conditions: full load bending, full load torsion, emergency turning and emergency braking, while avoiding resonance phenomena caused by road surface and diesel engine vibration. Compared with the original frame model, the weight of the optimized frame is reduced by 87.88 kg, with a weight reduction rate of 10.89%, realizing the lightweight design requirements.

摘要

针对抢险救援移动泵车机动性强、灵活性高的要求，本文在现有汽车车架模型的基础上，设计了一种新型移动泵车车架。车架采用40Cr和Q235材料，利用有限元法对其进行静态力学分析和动态特性分析。同时利用拓扑优化和多目标遗传算法对车架结构进行优化设计。结果表明，优化后的泵车车架能够满足满载弯曲、满载扭转、紧急转弯和紧急制动四种典型工况的强度设计要求，同时避免路面和柴油机振动引起的共振现象。与原车架模型相比，优化后车架重量减轻了87.88kg，减重率为10.89%，实现了轻量化设计要求。