Composition and mechanic models of damping measuring equipment of viscous dampers

作者：Shangguan, Wen-Bin; Wei, Yu-Ming; Zhao, Xu; Feng, Xiao; Li, Yao-Long

来源：Transactions of CSICE, 2014, 32(6): 555-561.

• Damping measurements
• Equipment mechanics
• Excitation frequency
• Measurement equipment
• Measuring equipments
• Resonance frequencies
• Torsional vibration model
• Viscous dampers

This study developed the equipment for measuring the damping of a viscous damper based on the principle of equipment resonance. Firstly, an excitation system that produces sinusoidal torque excitation by unbalanced inertial force of eccentric blocks at the planet gears of a planet-sun-gear system was designed and manufactured. Secondly, a driven system was developed to rotate the viscous damper at different speeds. Rotation speed of the viscous damper and excitation frequency are independent. Torsional vibration of the damper is obtained and analyzed to get the resonance frequency of the driven shaft and damper system. Thirdly, an equivalent torsional vibration model of the equipment was established. Inertia parameters in the model were determined by calculations, while torsional stiffness and damping of excitation system are obtained by experiment.

• 出版日期2014-11-25
• 单位华南理工大学