Damping Force Tracking Control of MR Damper System Using a New Direct Adaptive Fuzzy Controller

Abstract

This paper presents a new direct adaptive fuzzy controller and its effectiveness is verified by investigating the damping force tracking control of magnetorheological (MR) fluid based damper (MR damper in short) system. In the formulation of the proposed controller, a model of interval type 2 fuzzy controller is combined with the direct adaptive control to achieve high performance in vibration control. In addition, ∞ (H infinity) tracking technique is used in building a model of the direct adaptive fuzzy controller in which an enhanced iterative algorithm is combined with the fuzzy model. After establishing a closed-loop control structure to achieve high control performance, a cylindrical MR damper is adopted and damping force tracking results are obtained and discussed. In addition, in order to demonstrate the effectiveness of the proposed control strategy, two existing controllers are modified and tested for comparative work. It has been demonstrated from simulation and experiment that the proposed control scheme provides much better control performance in terms of damping force tracking error. This leads to excellent vibration control performance of the semiactive MR damper system associated with the proposed controller.

Robust Adaptive Controls of a Vehicle Seat Suspension System

“…The classical control methods are frequently combined with modern control technique to resolve parameter uncertainties and disturbances those are existed in most of control devices. A controller which is formulated using more than two different control schemes is called "a hybrid controller" or "composite controller" [1,2]. Among many candidates of the hybrid controller, the type of hybrid adaptive controller is the most popular since its structure is relatively simple and its control performance is very robust against the uncertainties or/and external disturbances.…”

“…Besides the above, there are many approaches to formulate new hybrid adaptive controllers such as output feedback control approach to take account for unknown hysteresis [13]. From the aspect of experimental implementation of hybrid adaptive controllers, several dynamic systems featuring magneto-rheological (MR) mount and MR damper are adopted for vibration control [2,[14][15][16][17][18]. Most of hybrid adaptive controllers used in these experimental realizations have been formulated by combining the models of interval type 2 fuzzy and interval type 2 fuzzy neural networks, and the control techniques of H-infinity control and sliding mode control.…”

Vibration Antiresonance Design for a Spacecraft Multifunctional Structure

“…In addition, some structural vibration control technologies such as particle damper, impact damper, particle tuned mass damper, and viscoelastic damper [7][8][9][10] are used in the aerospace field at present. A reaction wheel isolator assembly [11] made up of a set of six machined spring elements with bonded viscoelastic material was designed to reduce microvibration transmitted to the optical payload of Chandra Observatory.…”

A Robust Vibration Control of a Magnetorheological Damper Based Railway Suspension Using a Novel Adaptive Type 2 Fuzzy Sliding Mode Controller

“…Besides, combining these methods has been also seen as the appropriate approach providing some advantages [18][19][20][21][22].…”

“…This sometimes causes the chattering phenomenon impacting negatively on the system [9,18]. To overcome this, fuzzy logic systems (FLSs) have been used as a reasonable tool for establishing solutions [18][19][20][21][22]. Therefore 2 Shock and Vibration there have been several controllers built by combining the SMC and FLS, in which FLS is used to establish control laws and/or to build the black-box-typed models depicting the system's input-output relation [8,9,22].…”