STUDY ON LOAD EQUIVALENT METHOD AND LOAD SPECTRUM OF THE BOOM OF LOADER

LIANG Jia; SONG XuDing; GAO XiaoWei; LV PengMin; ZHANG Lei

doi:10.16579/j.issn.1001.9669.2018.03.031

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STUDY ON LOAD EQUIVALENT METHOD AND LOAD SPECTRUM OF THE BOOM OF LOADER

更新时间：2022-09-22

- STUDY ON LOAD EQUIVALENT METHOD AND LOAD SPECTRUM OF THE BOOM OF LOADER
- Journal of Mechanical Strength Vol. 40, Issue 3, Pages: 702-708(2018)
- 作者机构：
  
  1. 长安大学道路施工技术与装备教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2018.03.031
  CLC：
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LIANG Jia, SONG XuDing, GAO XiaoWei, et al. STUDY ON LOAD EQUIVALENT METHOD AND LOAD SPECTRUM OF THE BOOM OF LOADER. [J]. 40(3):702-708(2018)
DOI：

LIANG Jia, SONG XuDing, GAO XiaoWei, et al. STUDY ON LOAD EQUIVALENT METHOD AND LOAD SPECTRUM OF THE BOOM OF LOADER. [J]. 40(3):702-708(2018) DOI： 10.16579/j.issn.1001.9669.2018.03.031.

摘要

以5 t装载机铲斗与动臂销轴的实测载荷为基础,研究了将随姿态变化载荷当量到动臂局部坐标系下的求解方法,利用Matlab软件编写了相应的数据处理程序,得到了装载机动臂在固定姿态下的载荷时间历程。通过静力学分析确定了动臂的危险位置,利用危险截面应力等效原则得到了动臂的等效外载荷,并在此基础上编制了动臂疲劳试验载荷谱。研究结果为动臂的疲劳试验及抗疲劳设计提供了参考依据。

Abstract

Based on the measured load of the 5 t loader working device,the method of solving the load with the attitude change to the local coordinate system of the boom has been studied and the MATLAB software to write the corresponding data processing program has been sued to obtain the loader arm under the fixed attitude of the load time course. The dangerous position of the boom is determined by the static analysis,and the equivalent external load of the boom is obtained by the stress equivalent principle of dangerous cross section position. On this basis,the boom load spectrum is compiled. The results provide a reference for the fatigue test and anti-fatigue design of the boom.

关键词

装载机动臂等效载荷载荷谱

Keywords

LoaderBoomEquivalent loadLoad spectrum

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