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Semi active vibration control of a passenger car using magnetorheological shock absorber

Fellah Jahromi, A ; Sharif University of Technology | 2010

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  1. Type of Document: Article
  2. DOI: 10.1115/ESDA2010-24079
  3. Publisher: 2010
  4. Abstract:
  5. A novel semi-active control system for suspension systems of passenger car using Magnetorheological (MR) damper is introduced. The suspension system is considered as a mass-spring model with an eight-degrees-of-freedom, a passive damper and an active damper. The semi-active vibration control is designed to reduce the amplitude of automotive vibration caused by the alteration of road profile. The control mechanism is designed based on the optimal control algorithm, Linear Quadratic Regulator (LQR). In this system, the damping coefficient of the shock absorber changes actively trough inducing magnetic field. It is observed that utilizing the present control algorithm may significantly reduce the vibration response of the passenger car, thus, providing comfortable drive. The new developed suspension system may lead to design and manufacturing of passenger car in which the passenger may not feel the changes in road profile from highly bumpy to smooth profile
  6. Keywords:
  7. Full-car ; Linear quadratic regulator ; Magnetorheological damper ; Suspension system ; Active dampers ; Control algorithms ; Control mechanism ; Damping coefficients ; Magneto-rheological ; Magneto-rheological dampers ; Mass-spring models ; Optimal control algorithm ; Passive dampers ; Road profile ; Semi-active control systems ; Semi-active vibration control ; Vibration response ; Algorithms ; Automobile manufacture ; Automobile shock absorbers ; Automobile suspensions ; Automobiles ; Design ; Magnetic fields ; Roads and streets ; Shock absorbers ; Systems analysis ; Vibration analysis ; Vibration control ; Suspensions (components)
  8. Source: ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, Istanbul, 12 July 2010 through 14 July 2010 ; Volume 3 , 2010 , Pages 21-27 ; 9780791849170 (ISBN)
  9. URL: http://proceedings.asmedigitalcollection.asme.org/proceeding.aspx?articleid=1618160