Abstract
Owing to unique advantages, magnetorheological fluid (MRF) dampers have been widely adopted in different fields of vibration control. Significant differences of structures occur in diverse fields due to the respective requirements, thus obtaining a large number of MR dampers. Having a good understanding of types, technical characteristics, comprehensive performance, and developing trend and their dependencies on structures are extremely conducive to innovative developments and a market selection. While the fundamental and partial structures are summarized in an existing review, the classification, latest technologies, and developing trend are not involved clearly. Therefore, the current survey aims at a comprehensive supplement in such aspects. The review begins with an introduction of the development, application, and classification. Then, details of three technical routes are revealed, and the development of each type is roughly analyzed. Finally, reflecting through this review, structures including a novel flow mode and miniature bypass valves have represented the currently structural and technical features. Fully considering the latest technologies and future requirements, the developing trend and a variety of applications will be anticipated.
Highlights
MR dampers which are known as damping elements have been developing rapidly since the 1990s of the last century
Utilized to control vibration of the suspension system of high-mobility multipurpose wheeled vehicle (HMMWV), another damper was created in the University of Nevada [4]
Reflecting through existing structures, the summary gives us insight into structural development in three technical routes, mainly considering positions and turns of coils, improvement in the magnetic circuit and innovative flow modes
Summary
MR dampers which are known as damping elements have been developing rapidly since the 1990s of the last century. Ese improved structures, especially ones based on multistage circumferential flow mode and external valves [78, 79], have presented evident advantages such as longer damping channel, high magnetic field utilization, larger damping range, weak magnetic field excitation, smaller volume, lower energy consumption, better generality, and so on. It is drawn from the above literature that MR dampers have been developed in the direction of highperformance products, and there are so many structures at this stage. The classification, latest technologies, and developing trend are not involved clearly, especially not containing structure developed in the latest years. erefore, this paper aims at a comprehensive review of representative structures and technologies. e following are details of existing ones
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