金属加工（热加工）Issue(11)：25-31,7.
应急电源车底盘骨架焊接变形预测
Welding deformation prediction for emergency power vehicle chassis frame
周子昂 1范秋月 1陈雪芬 2赖秀英 2肖子华 2魏世轩2
作者信息
- 1. 福建理工大学机械与汽车工程学院 福建 福州 350118||龙岩学院福建省焊接质量智能评估重点实验室 福建龙岩 364012
- 2. 龙岩学院福建省焊接质量智能评估重点实验室 福建龙岩 364012
- 折叠
摘要
Abstract
The chassis frame of emergency power supply vehicles,serving as the critical load-bearing structure,is prone to deformation issues arising from complex assembly procedures and challenging welding requirements.These deformations can significantly compromise the vehicle's assembly accuracy and operational reliability.This investigation conducted a comprehensive finite element analysis on the chassis frame using both thermal elastic-plastic and inherent strain methodologies.Six distinct welding strategies were systematically evaluated,incorporating variations in component assembly sequences and joint welding sequences to determine their respective impacts on structural deformation.Results indicate strong agreement between simulated weld pool geometries and experimental observations.Welding-induced deformation patterns remained consistent across different schemes,with maximum deformations occurring in the central longitudinal beam and end beam structures.While component assembly sequences and joint welding sequences showed negligible influence on the outer longitudinal beam deformation,substantial variations were observed in internal beam displacements.The optimal configuration combining assembly scheme 1 with welding sequence scheme 3 demonstrated the most effective deformation control,achieving a smaller amount of welding deformation.关键词
应急电源车底盘骨架/有限元模拟/焊接方案/焊接变形Key words
emergency power vehicle chassis frame/finite element simulation/welding scheme/welding deformation引用本文复制引用
周子昂,范秋月,陈雪芬,赖秀英,肖子华,魏世轩..应急电源车底盘骨架焊接变形预测[J].金属加工（热加工）,2025,(11):25-31,7.
