based on multidisciplinary simulations

 

 

 

ZHOU Quan1, LI Guang2, LV Xiaolin2, LI Jialin2, NING Xiaobin1

 

(1. School of Mechanical engineering, Zhejiang University of Technology, Hangzhou 310014, China;

 

2.Technology Center, Taiyuan Heavy Industry Co., Ltd., Taiyuan 030023, China)

 

 

Abstract: Aiming at the structural strength assessment of working device, the structural strength of working device was researched during the development of large faceshovel hydraulic excavator. The dynamic digging resistance of working device was obtained by using DEM to analysis break force under the arm mining condition. The rigid and the rigidflexible coupling system simulation model were established by MSC.Adams software. The data of dynamic digging resistance and maximum static break force was input into the rigidflexible coupling system simulation model to analysis the structural strength of the working device. The results indicate that static simulation has its limitation, which can not fully response the structural strength of working device, and the importance of dynamic simulation by comparing the difference between the dynamic simulation and static simulation. The relationship between the digging posture, working load and the structural strength is preliminary researched , which provided the valuable reference for the design of working device.

 

Key words: excavator; attachment; structural strength; simulation