Park, Y.-J.; Kang, B.-H.; Choi, S.-B. A New Rotary Magnetorheological Damper for a Semi-Active Suspension System of Low-Floor Vehicles. Actuators2024, 13, 155.
Park, Y.-J.; Kang, B.-H.; Choi, S.-B. A New Rotary Magnetorheological Damper for a Semi-Active Suspension System of Low-Floor Vehicles. Actuators 2024, 13, 155.
Park, Y.-J.; Kang, B.-H.; Choi, S.-B. A New Rotary Magnetorheological Damper for a Semi-Active Suspension System of Low-Floor Vehicles. Actuators2024, 13, 155.
Park, Y.-J.; Kang, B.-H.; Choi, S.-B. A New Rotary Magnetorheological Damper for a Semi-Active Suspension System of Low-Floor Vehicles. Actuators 2024, 13, 155.
Abstract
This study explores the significance of active suspension systems for vehicles with lower chassis compared to conventional ones, aiming at the development of future automobiles. Conventional linear MR (Magneto-Rheological) dampers were found inadequate in ensuring sufficient vibration control because the vehicle's chassis becomes lowered in the unmanned vehicles or purposed based vehicles. As an alternative, a rotary type of MR damper is proposed in this work. The proposed damper is designed based on pre-specified design parameters through mathematical modeling and magnetic field analyses. Subsequently, a prototype of the rotary MR damper identical to the design is fabricated, and effectiveness is shown through experimental investigations. In configuring the experiments, a proportional-integral (PI) controller is employed for current control to reduce the response time of the damper. The results presented in this work provides useful guidelines to develop a new type of MR damper applicable to various types of future vehicles’ suspension systems with low distance from the tire to the body floor.
Keywords
Magnetorheological Fluid; Rotary MR damper; Low-Floor Vehicles; Finite Element Analysis; Magnetic Analysis; Response Time; Damping Force
Subject
Engineering, Automotive Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
