主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

汽车实用技术 ›› 2024, Vol. 49 ›› Issue (22): 44-48.DOI: 10.16638/j.cnki.1671-7988.2024.022.009

• 设计研究 • 上一篇    下一篇

8×4 轻量化城市渣土车上装结构分析与优化

王彦岗 1,韦仁宝 2,张凯 3   

  1. 1.南宁学院;2.中国重汽集团柳州运力专用汽车有限公司; 3.中汽研汽车检验中心(武汉)有限公司
  • 发布日期:2024-11-22
  • 通讯作者: 王彦岗
  • 作者简介:王彦岗(1982-),男,硕士,高级工程师,研究方向为专用汽车的开发和应用,E-mail:95194229@qq.com

Analysis and Optimization of 8×4 Lightweight Urban Dump Truck Superstructure

WANG Yangang1 , WEI Renbao2 , ZHANG Kai3   

  1. 1.Nanning University; 2.Sinotruk Liuzhou Yunli Special Vehicle Company Limited; 3.CATARC Automotive Inspection Center (Wuhan) Company Limited
  • Published:2024-11-22
  • Contact: WANG Yangang

摘要: 以 8×4 轻量化城市渣土车上装为研究对象,分别在举升、转弯和扭转等典型工况下, 利用有限元分析方法对其进行结构刚强度校核分析。结果表明,在满载 50 t 时,厢体在多种 工况下整体变形较大且存在部分高应力区域,有胀厢失效和屈服失效风险;底架在举升工况 下,前端区域最大等效应力超过了许用应力,结构强度无法满足设计要求。结合分析结果, 通过改进结构和调整尺寸分别对厢体和底架进行了优化,厢体变形由最大 52.2 mm 降为 14.8 mm,厢体与底架最大应力总体上也在许用应力范围内,优化后的渣土车上装达到了相应 刚强度要求。

关键词: 渣土车;厢体;底架;有限元分析;结构优化

Abstract: The superstructure of the 8×4 lightweight urban dump truck is investigated as the research object, undergoing structural rigidity and strength verification analysis using finite element analysis methods under typical operating conditions such as lifting, turning, and twisting. The results indicate that when fully loaded with 50 t, the dump body experiences significant overall deformation and exhibits high-stress regions under various conditions, posing risks of bulging failure and yield failure. Under lifting conditions, the maximum equivalent stress in the front region of the under frame exceeds the allowable stress, the structural strength fails to meet design requirements. Combined analysis results, optimizations are implemented on both the dump body and under frame through structural improvements and dimensional adjustments. The maximum deformation of the dump body is reduced from 52.2 mm to 14.8 mm, and the maximum stresses of both the dump body and under frame generally within the allowable stress range. The optimized superstructure of the dump truck meets the corresponding rigidity and strength requirements.

Key words: dump truck; dump body; under frame; finite element analysis; structural optimization