高压水压裂辅助切削试验台动态特性分析

IF 0.6 4区工程技术 Q4 MECHANICS

Journal of Theoretical and Applied Mechanics Pub Date : 2023-04-03 DOI:10.15632/jtam-pl/161478

Zhiming Liu, Qiang Zhang, Yuliang Sun, Junming Liu

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引用次数: 0

摘要

针对滚筒式采煤机开采坚硬煤层时切割效率低的问题，设计了高压水力压裂辅助切割试验台。与普通试验台相比，改进试验台的最大等效应力减小了55.38%，最大总变形减小了27.23%。根据动态响应分析结果，高压水压裂辅助切割试验台在极端工况下稳定可靠，满足强度和刚度设计要求。

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Analysis of dynamic characteristics of an experimental bench of high-pressure water fracturing assisted cutting

Aiming at the problem that the cutting eﬃciency of a drum shearer is low when mining hard coal seams, an experimental bench of high-pressure water fracturing assisted cutting is designed. Compared with normal ones, the maximum equivalent stress of the improved experimental bench is reduced by 55.38%, and the maximum total deformation is reduced by 27.23%. According to the results of dynamic response analysis, it is concluded that the experimental bench of high-pressure water fracturing assisted cutting is stable and reliable under extreme working conditions, and meets design requirements for strength and stiﬀness.

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来源期刊

Journal of Theoretical and Applied Mechanics 物理-力学

CiteScore

1.40

自引率

14.30%

发文量

审稿时长

6 months

期刊介绍： The scope of JTAM contains: - solid mechanics - fluid mechanics - fluid structures interactions - stability and vibrations systems - robotic and control systems - mechanics of materials - dynamics of machines, vehicles and flying structures - inteligent systems - nanomechanics - biomechanics - computational mechanics