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Shock and Vibration Volume 2018 ,2018-03-15
Analysis on Force Transmission Characteristics of Two-Legged Shield Support under Impact Loading
Research Article
Qing-liang Zeng 1 Zhao-sheng Meng 1 Li-rong Wan 1 Cheng-long Wang 1
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DOI:10.1155/2018/3854684
Received 2017-09-11, accepted for publication 2018-01-21, Published 2018-01-21
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摘要

To study the load transfer characteristics of a two-legged shield powered support, a numerical simulation model of the support was established using the multibody dynamics software ADAMS. The model took full account of the hydraulic-elastic deformation characteristics of the support, as a series spring-damper system was used to replace the leg and the equilibrium jack. The canopy, goaf shield, lemniscate bars, and equilibrium jack are equivalent to flexible bodies. The setting force of the leg was provided by the preload of the equivalent spring, the static roof load was simulated using a slope signal, and the impact load was simulated using a step signal. Using the model, the impact and excitation effects of each hinge joint of the support were analyzed under different impact load conditions across the canopy. The results show that the location of the impact load affects the force transmissions of all hinge points of the support. Both the impact effect and the excitation effect are at a minimum when the impact force is located near the leg action line. These results are useful for the adaptive control and structural design optimization of the support.

授权许可

Copyright © 2018 Qing-liang Zeng et al. 2018
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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通讯作者

1. Qing-liang Zeng.College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China, sdust.edu.cn.qlzeng@163.com
2. Zhao-sheng Meng.College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao 266590, China, sdust.edu.cn.skdmzs@163.com

推荐引用方式

Qing-liang Zeng,Zhao-sheng Meng,Li-rong Wan,Cheng-long Wang. Analysis on Force Transmission Characteristics of Two-Legged Shield Support under Impact Loading. Shock and Vibration ,Vol.2018(2018)

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