Vibration power generator for a linear MR damper

Abstract

The paper describes the structure and the results of numerical calculations and experimental tests of a newly developed vibration power generator for a linear magnetorheological (MR) damper. The generator consists of permanent magnets and coil with foil winding. The device produces electrical energy according to Faraday's law of electromagnetic induction. This energy is applied to vary the damping characteristics of the MR damper attached to the generator by the input current produced by the device.The objective of the numerical calculations was to determine the magnetic field distribution in the generator as well as the electric potential and current density in the generator's coil during the idle run and under the load applied to the MR damper control coil. The results of the calculations were used during the design and manufacturing stages of the device.The objective of the experimental tests carried out on a dynamic testing machine was to evaluate the generator's efficiency and to compare the experimental and predicted data. The experimental results demonstrate that the engineered device enables a change in the kinetic energy of the reciprocal motion of the MR damper which leads to variations in the damping characteristics. That is why the generator may be used to build up MR damper based vibration control systems which require no external power.

Energy balance in self-powered MR damper-based vibration reduction system

“…The study discusses energy balance in the self-powered MR damper-based vibration reduction system. The system is composed of the vibration power generator incorporating high performance bulk magnets with special arrangement and foilwound coil [5] and the commercial MR damper of RD-1005-3 series manufactured by the Lord Corporation [6].…”

Electromagnetic regenerative suspension system for ground vehicles

“…Efforts have been problem in [19,20] where opti absorber with finite element anal conducted. The power density transducers can be increased to 3. previous designs [9,10]. The n damping coefficient of 1680-214 an average 26-33 watts of electri square (RMS) suspension velocity [21] designed and built an RER shock absorber ( Fig.…”

“…Various concepts and prototyp proposed [2][3][4][5][6][7][8][9][10][11][12][13][14]. Among all the concepts, e designs are the most popular for their high ene efficiency and design simplicity.…”

Investigation of Vehicle Parameters in Regenerative Coil Suspension Design

“…MR dampers offer high dynamic range and sturdiness. This research was under-scored by Choi et al [10] and Bogdan [11]. Shojaei et al [12] have theoretically and experimentally investigated a quarter car suspension model with MR damper.…”