scholarly journals Vibration control of a semi-active railway vehicle suspension with magneto-rheological dampers

2016 ◽  
Vol 8 (4) ◽  
pp. 168781401664363 ◽  
Author(s):  
Jong-Seok Oh ◽  
Yu-Jeong Shin ◽  
Hyung-Wook Koo ◽  
Hwan-Choong Kim ◽  
Jinhyuk Park ◽  
...  
Keyword(s):  
Vibration Control ◽  
Vehicle Suspension ◽  
Railway Vehicle ◽  
Magneto Rheological

A new hybrid mount actuator consisting of air spring and magneto-rheological damper for vibration control of a heavy precision stage

2018 ◽  
Vol 284 ◽  
pp. 42-51 ◽  
Author(s):  
Chulhee Han ◽  
Seung-Bok Choi ◽  
Yang-Sup Lee ◽  
Hyung-Tae Kim ◽  
Cheol-Ho Kim
Keyword(s):  
Vibration Control ◽  
Air Spring ◽  
Precision Stage ◽  
Magneto Rheological

Vibration Control of a New Bed Stage System for Ambulance Using MR Dampers

2014 ◽  
Author(s):  
Hee-Dong Chae ◽  
Seung-bok Choi ◽  
Jong-Seok Oh
Keyword(s):  
Mathematical Model ◽  
Vibration Control ◽  
Vibration Isolation ◽  
Design Parameters ◽  
Ride Quality ◽  
Vibration Level ◽  
Mr Dampers ◽  
Secondary Damage ◽  
Stage System ◽  
Magneto Rheological

This paper proposes a new bed stage for patients in ambulance vehicle in order to improve ride quality in term of vibration control. The vibration of patient compartment in ambulance can cause a secondary damage to a patient and a difficulty for a doctor to perform emergency care. The bed stage is to solve vertical, rolling, and pitching vibration in patient compartment of ambulance. Four MR (magneto-rheological) dampers are equipped for vibration isolation of the stage. Firstly, a mathematical model of stage is derived followed by the measurement of vibration level of patient compartment of real ambulance vehicle. Then, the design parameters of bed stage is undertaken via computer simulation. Skyhook, PID and LQR controllers are used for vibration control and their control performances are compared.

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