Semi-active control of seat suspension with MR damper
نویسندگان
چکیده
The vibration control of a seat suspension system with magnetorheological (MR) damper is investigated in this study. Firstly, a dynamical model of the seat suspension system with parameter uncertainties (such as mass, stiffness, damping) and actuator saturation is established. Secondly, based on Lyapunov functional theory and considering constraint conditions for damping force, the semi-active controller is designed, and the controller parameters are derived in terms of linear matrix inequalities (LMIs), which guarantees H∞ performance index. Finally, compared H∞ control strategy and the passive, skyhook control strategy, the simulation results in time and frequency domains demonstrate the proposed approach can achieve better vertical acceleration attenuation for the seat suspension system and improve ride comfort.
منابع مشابه
Fuzzy Control of Seat Vibrations for Semi-Active Quarter Vehicle System Utilizing Magneto rheological Damper
–This paper presents an investigation into the effectiveness of controllable magnetorheological (MR) damper for a semi-acive vehicle model with passenger seat. Mathematical model has been experimentally developed for controller design using Choi et al. model. A quarter vehicle model has been employed for system performance evaluation via Matlab through numerical simulation. System behaviour rel...
متن کاملDevelopment of a Semi-active Car Suspension Control System Using Magneto-rheological Damper Model
In this paper, the development of a semiactive suspension control of quarter car model using fuzzy-based controller has been done. The quarter car model to be used here can be described as a nonlinear two degrees of freedom system which is subject to excitation from different road profile. The semi-active control is designed as the fuzzy control inferred by using two single input rule fuzzy mod...
متن کاملApplication of a New Modified Parametric Algebraic Model for Magnetorheological Damper in Vehicle Semi-active Suspension System
The purpose of this paper is to present a new modified parametric algebraic model for MR damper in controlling the semi-active suspension system. Except for its accuracy, modified algebraic model is additionally more preferable in terms of its low computational expenses compared to differential modified Bouc-Wen’s model that is extremely computationally demanding. The control part consists of t...
متن کاملComputer Simulation on Fuzzy Control of Semi-active Suspension System Based on the Whole Vehicle
With the development of technology, new materials have been invented, which have been applied to improve the performance of structures. Recently, researchers pay their attention to controllable fluids and its applications. Magneto rheological (MR) damper is a kind of devices that uses rheological fluids to modify their mechanical properties. Their mechanical simplicity, large dynamic range, low...
متن کاملSemi-active Vibration Control with On-line Identification of the Inverse Mr Damper Model
The paper presents the semi-active vibration control based on the Skyhook algorithm which benefits from the adaptively tuned inverse magnetorheological (MR) damper model. The structure of the inverse model consists of the atan function and a linear viscous damping component. The proposed algorithm was tested by simulation of the quarter-car suspension model subjected to multiple bump road excit...
متن کامل