A hybrid clustering based fuzzy structure for vibration control – Part 2: An application to semi-active vehicle seat-suspension system

2015 ◽  
Vol 56-57 ◽  
pp. 288-301 ◽  
Author(s):  
Sy Dzung Nguyen ◽  
Quoc Hung Nguyen ◽  
Seung-Bok Choi
Keyword(s):  
Vibration Control ◽  
Suspension System ◽  
Hybrid Clustering ◽  
Seat Suspension ◽  
Vehicle Seat ◽  
Control Part

Evaluation of vehicles’ active seat suspension system using wavelet analysis

2020 ◽  
Vol 51 (10) ◽  
pp. 176-185
Author(s):  
Andrzej Błażejewski ◽  
Sebastian Głowiński
Keyword(s):  
Transfer Function ◽  
Wavelet Analysis ◽  
Human Body ◽  
Human Head ◽  
Suspension System ◽  
Test Stand ◽  
Seat Suspension ◽  
System Output ◽  
Vehicle Seat

In this work, the dedicated test stand was applied to investigate the human body–vehicle seat system. The particular signals were measured by accelerometers placed on the seat and the human head. The horizontal vibrations were applied as the input to the system. As an alternative to the classical Fourier approach, the wavelet transfer function was introduced to describe the effectiveness of particular seat suspension. The human head reaction was investigated as the system output.

Development and simulation evaluation of a magnetorheological elastomer isolator for seat vibration control

2012 ◽  
Vol 23 (9) ◽  
pp. 1041-1048 ◽  
Author(s):  
Weihua Li ◽  
Xianzhou Zhang ◽  
Haiping Du
Keyword(s):  
Vibration Control ◽  
Vibration Energy ◽  
Magnetorheological Elastomer ◽  
Isolation System ◽  
Road Crashes ◽  
Seat Suspension ◽  
Simulation Evaluation ◽  
Passive Isolation ◽  
Seat Vibration ◽  
Vehicle Seat

Driver fatigue is one of the leading factors contributing to road crashes. Environmental stress, such as unwanted seat vibration, is a key contributor to fatigue. This article presents the design and development of a magnetorheological elastomer isolator for a seat suspension system. By altering the magnetorheological elastomer isolator’s stiffness through a controllable magnetic field and selecting suitable control strategy, the system’s natural frequency can be changed to avoid resonance, which consequently reduce the vehicle’s vibration energy input to seat, and thus suppress the seat’s response. Experimental results show that the developed magnetorheological elastomer isolator is able to reduce vibration more when compared with the passive isolation system, indicating the significant potential of its application in vehicle seat vibration control.

A new adaptive hybrid controller for vibration control of a vehicle seat suspension featuring MR damper

2016 ◽  
Vol 23 (20) ◽  
pp. 3392-3413 ◽  
Author(s):  
Do Xuan Phu ◽  
Sang-Min Choi ◽  
Seung-Bok Choi
Keyword(s):  
Vibration Control ◽  
Neural Control ◽  
Sliding Mode ◽  
Fuzzy Model ◽  
Fuzzy Rule ◽  
Mr Damper ◽  
Seat Suspension ◽  
Hybrid Controller ◽  
Interval Type ◽  
Vehicle Seat

This paper presents a new hybrid controller which is a combination of three control schemes: fuzzy neural control, PI control and sliding mode control. The interval type 2 fuzzy model featuring updated rules via online is used in this study and in order to support the fuzzy model, a granular clustering method is applied to find groups of data related to the initial fuzzy rule. Then the output for fuzzy model is used for the PI-sliding mode controller. The combination of PI and sliding mode controls is carried out by H-infinity technique method which is rely on the modified Riccati-like equation. After developing the mathematical model, the proposed controller is applied to vibration control of a vehicle seat suspension featuring magneto-rheological (MR) damper. In order to demonstrate the effectiveness of the proposed controller, two different excitations of bump and random signals are adopted and corresponding vibration control performances are evaluated. It is demonstrated through both simulation and experiment that the proposed controller can provide much better than vibration control performance compared with the conventional controllers showing more robust stability.

scholarly journals Modeling of a vehicle seat suspension system with pneumatic spring and viscous dampers

PAMM ◽  
2007 ◽  
Vol 7 (1) ◽  
pp. 4130003-4130004
Author(s):  
Sebastian Chamera ◽  
Igor Maciejewski ◽  
Tomasz Krzyzynski
Keyword(s):  
Suspension System ◽  
Viscous Dampers ◽  
Seat Suspension ◽  
Vehicle Seat
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