Design and development of a novel displacement differential self-induced magnetorheological damper

Abstract

Design and development of a novel displacement differential self-induced magnetorheological damper AbstractThis article presents the development of a novel magnetorheological damper which has a self-sensing ability. In this study, a linear variable differential sensor, which was based on the electromagnetic induction mechanism, was integrated with a conventional magnetorheological damper. The working principle, configuration, and prototype of the displacement differential self-induced magnetorheological damper based on the integrated linear variable differential sensor technology were presented. A mathematical model of the proposed displacement differential self-induced magnetorheological damper was established. The finite element model was built with two-dimensional Maxwell software and the magnetic simulations were presented. With this approach, the influence of the flux leakage, the winding cylinder in different basic values of structure parameters, and materials were determined to obtain an optimal displacement differential selfinduced magnetorheological damper. Finally, the dynamic performance of the displacement differential selfinduced magnetorheological damper was evaluated with a fatigue test machine. The experimental results indicated that the developed displacement differential self-induced magnetorheological damper based on the integrated linear variable differential sensor technology can output controllable damping force and displacement relative self-induced voltages simultaneously. AbstractThis paper presents the development of a novel magnetorheological damper (MRD) which has a self-sensing ability. In this study, a linear variable differential sensor (ILVDS), which was based on the electromagnetic induction mechanism, was integrated with a conventional MRD. The working principle, configuration and prototype of the displacement differential self-induced magnetorheological damper (D-DSMRD) based on the ILVDS technology was presented. A mathematical model of the proposed D-DSMRD was established. The finite element model was built with two-dimensional Maxwell software and the magnetic simulations were presented. With this approach, the influencing of the flux leakage, the winding cylinder in different basic values of structure parameters and materials were determined to obtain an optimal D-DSMRD. Finally, the dynamic performance of the D-DSMRD was evaluated with a fatigue test machine. The experimental results indicated that the developed D-DSMRD based on the ILVDS technology can output controllable damping force and displacement relative self-induced voltages simultaneously.

Real-Time Sensing Action of the Electromagnetic Vibration-Based Energy Harvester for a Magnetorheological Damper Control

“…al. [20] evaluated static and dynamic behaviour of a MR damper with a self-induced capability integrated with a linear variable differential sensorbased. Also, Hu et al [21] proposed a self-sensing MR damper with an electromagnetic harvester with controllable damping capability.…”

Damping performance analysis of magnetorheological damper with serial-type flow channels

“…Due to its excellent dynamic properties, such as the simple structure, larger damping force, wider adjustable range, fast response, and low power consumption, it is also widely used in bridge construction, military aerospace, and other industrial fields. 8,9 To achieve a larger damping force, many different types of studies have been reported. A three-coil MR damper was developed by Lord Corporation, which can increase the damping force by increasing the effective damping length with maximum 20t load.…”

A novel velocity self-sensing magnetorheological damper: Design, fabricate, and experimental analysis

“…Guan et al (2015) proposed a novel compact MR damper with self-powered capability and combined a ball-screw-based generation device, which could act as a velocity sensor in open-circuit state. Hu et al (2015a, 2015b, 2017) proposed a displacement self-induced MR damper structure and a self-sensing in-line coil mechanism; results indicated that both models have the ability to output displacement-dependent voltages and stable damping force simultaneously. Sun et al (2015) developed a self-sensing magnetorheological elastomer (MRE) adaptive tuned vibration absorber and tested the performance of the self-sensing capability from 3 A, 4.8 Hz to 11.3 Hz, and the result showed the absorber has higher efficiency than passive system.…”