Steady-state dynamic characteristics analysis of a dual-unit collision and stick-slip vibration-driven system

IF 4.3 2区工程技术 Q1 ACOUSTICS

Journal of Sound and Vibration Pub Date : 2024-11-15 DOI:10.1016/j.jsv.2024.118814

Shaopei Wu , Tao Liu , Jiqi Wang , Guofang Li , Deyang Li , Wangcai Ding

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引用次数: 0

Abstract

The physics model of isotropically connected and reversely connected dual-unit collision and stick-slip vibration-driven system (ICVDS,RCVDS) with a wide range of drive speed regulation and flexible direction switching is constructed; the differential equations of the system are established based on the system kinematic characteristics, the system kinematic calculation flow and Poincaré mapping are constructed, and the system cyclic kinematic state switching mechanism and the analysis of the cyclic kinematic type are analysed. The mechanism of state switching of the system and the analysis of the type of periodic motion are analysed. The experimental measurement and numerical simulation of the system were compared and analysed the change rule of the average driving speed of the system. The results show that the average driving speed of ICVDS and RCVDS has a symmetric distribution law. The use of excitation frequency as a regulation parameter has the advantages of wide speed regulation band and good continuity, and the use of phase difference regulation has the characteristics of symmetrical regulation. The results and methods of this research provide the corresponding theoretical basis for the design, parameter optimisation and control research of the multi-unit vibration-driven system.

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来源期刊

Journal of Sound and Vibration 工程技术-工程：机械

CiteScore

9.10

自引率

10.60%

发文量

551

审稿时长

69 days

期刊介绍： The Journal of Sound and Vibration (JSV) is an independent journal devoted to the prompt publication of original papers, both theoretical and experimental, that provide new information on any aspect of sound or vibration. There is an emphasis on fundamental work that has potential for practical application. JSV was founded and operates on the premise that the subject of sound and vibration requires a journal that publishes papers of a high technical standard across the various subdisciplines, thus facilitating awareness of techniques and discoveries in one area that may be applicable in others.