摘要
针对商用车后处理器支架重量大、疲劳性能不足的问题,研究通过建立静、动、振动载荷模型,选用22MnB5高强钢,采用一体化设计、加劲肋、阻尼槽等结构优化及热成形工艺。测试结果表明,优化后静、动、振动及总载荷下最大应力分别为330.12 MPa、435.56 MPa、322.91 MPa、530.99 MPa,载荷极限提升至8500.78 N、10000.45 N、8700.55 N、11200.67 N。该方案在保证力学性能的同时显著轻量化,为商用车相关部件设计提供工程参考。
Addressing the issues of excessive weight and insufficient fatigue performance in commercial vehicle aftertreatment bracket structures,this study established static,dynamic,and vibration load models.Utilizing 22MnB5 high-strength steel,structural optimizations including integrated design,stiffeners,and damping slots were implemented alongside hot forming processes.Test results indicate that under optimized conditions,maximum stresses under static,dynamic,vibration,and combined loads reached 330.12 MPa,435.56 MPa,322.91 MPa,and 530.99 MPa,respectively,with load limits increased to 8,500.78 N,10,000.45 N,8,700.55 N,and 11,200.67 N.This solution achieves significant weight reduction while maintaining mechanical performance,providing engineering reference for commercial vehicle component design.
作者
刘锐
李伟
Liu Rui;Li Wei(Hubei Dines Tongda Emission Treatment System Co.,Ltd.,Shiyan Hubei 442000,China;Dines Emission Treatment System(Changzhou)Co.,Ltd.,Changzhou Jiangsu 213000,China)
出处
《机械管理开发》
2025年第12期183-184,187,共3页
Mechanical Management and Development
关键词
商用车辆
后处理器支架
轻量化设计
结构优化
热成型技术
commercial vehicles
aftertreatment bracket
lightweight design
structural optimization
hot forming technology
