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http://dx.doi.org/10.7839/ksfc.2018.15.1.038

Development and Evaluation of a Hybrid Damper for Semi-active Suspension  

Jin, Chul Ho (School of Mechanical Design & Manufacturing, Busan Institute of Science and Technology)
Yoon, Young Won (Korea Hydraulic & Pneumatic System Co.)
Lee, Jae Hak (Department of Aircraft Parts Engineering, International University of Korea)
Publication Information
Journal of Drive and Control / v.15, no.1, 2018 , pp. 38-49 More about this Journal
Abstract
This research describes the development model and testing of a hybrid damper which can be applicable to a vehicle suspension. The hybrid damper is devised to improve the performance of a conventional passive oil damper using a magneto-rheological (MR) accumulator which consists of a gas accumulator and a MR device. The level of damping is continuously variable by the means of control in the applied current in a MR device fitted to a floating piston which separates the gas and the oil chamber. A simple MR device is used to resist the movement of floating piston. At first a mathematical model which describes all flows within the conventional oil damper is formulated, and then a small MR device is also devised and adopted to a mathematical model to characterize the performance of the device.
Keywords
Damper; Floating Piston; Magneto-rheological Fluid; Accumulator;
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