FATIGUE LIFE ANALYSIS OF SHEARER PICKS BASED ON LOAD RECONSTRUCTION THEORY

MAO Jun; WANG Xin; CHEN HongYue; ZHANG Yu

doi:10.16579/j.issn.1001.9669.2018.02.034

您当前的位置：

首页 >

文章列表页 >

FATIGUE LIFE ANALYSIS OF SHEARER PICKS BASED ON LOAD RECONSTRUCTION THEORY

更新时间：2022-09-22

- FATIGUE LIFE ANALYSIS OF SHEARER PICKS BASED ON LOAD RECONSTRUCTION THEORY
- Journal of Mechanical Strength Vol. 40, Issue 2, Pages: 467-471(2018)
- 作者机构：
  
  1. 辽宁工程技术大学机械工程学院
  2. 煤炭工业协会高端综采成套装备动力学测试与大数据分析中心
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2018.02.034
  CLC：
扫描看全文
MAO Jun, WANG Xin, CHEN HongYue, et al. FATIGUE LIFE ANALYSIS OF SHEARER PICKS BASED ON LOAD RECONSTRUCTION THEORY. [J]. 40(2):467-471(2018)
DOI：

MAO Jun, WANG Xin, CHEN HongYue, et al. FATIGUE LIFE ANALYSIS OF SHEARER PICKS BASED ON LOAD RECONSTRUCTION THEORY. [J]. 40(2):467-471(2018) DOI： 10.16579/j.issn.1001.9669.2018.02.034.

摘要

为研究采煤机截齿在实际工况下的疲劳寿命情况,采用解析延拓原理对实验测出的截齿三向力进行载荷重构,利用共轭梯度法对重构函数迭代求解。运用Ansys workbench瞬态动力学对采煤机滚筒进行动力学分析,并将得到的重构载荷以时间序列形式加载到截齿上,将结果文件导入ncode中进行截齿和齿座的寿命预测,仿真结果表明:零件寿命最小区域出现在齿座和滚筒叶片的焊接处,说明滚筒截齿在截割煤岩的时候,齿座与叶片的焊接处所受的应力大,存在应力集中现象,焊接后应消除残余应力并作打磨处理。

Abstract

In order to study the fatigue life of the shearer’pick in the actual working conditions,the load was reconstructed by using the analytical continuation principle. The method of the conjugate gradient method was used to solve the reconstruction function. Using ANSYS Workbench transient dynamic analysis on the dynamics of the shearer drum, and will be the reconstruction of load loaded in the form of the time sequence to pick,the results file to import ncode of pick and pick-seat life prediction and simulation results show that: Life parts minimum zone appears in pick-seat and shearer drum blade welding,in drum pick in cutting coal and rock,pick-seat and a blade welding premises by the stress,and the existence of the phenomenon of stress concentration,welding to eliminate residual stress and grinding process.

关键词

正则化重构采煤机截齿疲劳寿命

Keywords

RegularizationReconstructionShearer pickFatigue life

references

Views

182

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

FATIGUE LIFE ANALYSIS OF PLANET CARRIER OF SHEARER CUTTING UNIT BASED ON LOAD RECONSTRUCTION THEORY

FATIGUE LIFE ANALYSIS OF PIPELINE CONSIDERING INITIAL ASSEMBLY STRESS (MT)

STUDY ON FATIGUE LIFE OF SUS304 STAINLESS STEEL SPOT WELDED JOINTS (MT)

CAE SIMULATION ANALYSIS AND RIG TEST VALIDATION RESEARCH OF AUTOMOBILE LEAFSPRING (MT)

FATIGUE LIFE PREDICTION AND EXPERIMENTAL STUDY OF ALUMINUM ALLOY WHEEL HUB CONSIDERING DAMAGE ACCUMULATION (MT)

Related Author

No data

Related Institution

China National Coal Mining Equipment Co.,Ltd.

Dalian Institute of Measurement and Control Technology

Chengdu Aircraft Industrial (Group) Co., Ltd.

Civil Aviation College, Nanjing University of Aeronautics and Astronautics

College of General Aviation and Flight, Nanjing University of Aeronautics and Astronautics

⁰