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Shock and Vibration
Volume 4, Issue 5-6, Pages 305-310

Study on Synchronization of Two Eccentric Rotors Driven by Hydraulic Motors in One Vibrating System

Tianxia Zhang, Bangchun Wen, and Jian Fan

Department of Mechanical Engineering, Northeastern University, Shenyang, Liaoning 110006, China

Revised 20 February 1997

Copyright © 1997 Hindawi Publishing Corporation. 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.


In this article the synchronization of two eccentric rotors driven by hydraulic motors (TERDHM) in one vibrating system is studied. The differential equations of TERDHM motion are derived, and the synchronous and stable rotating conditions of TERDHM are established. It is found from the analysis and simulation that the angular velocities of TERDHM act on each other and both vary in a small range approaching their mean value. The synchronous rotation speed is equal to the average angular velocity of TERDHM, and the phase difference between them depends on the difference of the flow rates of the two hydraulic motors.