Design of a Linear Electromagnetic Actuator for Secondary Suspension in a Railway Vehicle Considering Electromagnetic-Thermal Coupled Field Analysis Under Geometrical Constraints

2018 ◽  
Vol 42 (2) ◽  
pp. 153-158 ◽  
Author(s):  
Dongwook Kim ◽  
Jun-Ho Yoon ◽  
No-Cheol Park
Keyword(s):  
Field Analysis ◽  
Railway Vehicle ◽  
Electromagnetic Actuator ◽  
Coupled Field ◽  
Geometrical Constraints ◽  
Secondary Suspension

scholarly journals A Fluid-Thermo-Electric Coupled Field Analysis of a Novel Integrated Thermoelectric Device

2012 ◽  
Vol 14 ◽  
pp. 2088-2095 ◽  
Author(s):  
B.V.K. Reddy ◽  
Matthew Barry ◽  
John Li ◽  
Minking K. Chyu
Keyword(s):  
Field Analysis ◽  
Thermoelectric Device ◽  
Thermo Electric ◽  
Coupled Field

Thermomecanical Response of LNG Concrete Tank to Cryogenic Temperatures

2011 ◽  
Vol 312-315 ◽  
pp. 1021-1026 ◽  
Author(s):  
Lahlou Dahmani ◽  
Rachid Mehaddene
Keyword(s):  
Numerical Evaluation ◽  
Thermal Stresses ◽  
Liquefied Natural Gas ◽  
Field Analysis ◽  
Distribution Data ◽  
Cryogenic Temperatures ◽  
Heat Temperature ◽  
Coupled Field ◽  
Concrete Tank ◽  
Transient Thermal

In this paper are illustrated the principal aspects connected with the numerical evaluation of thermal stress induced by LNG (liquefied natural gas) in a concrete tank. In order to investigate the thermal induced tensile stresses, the ANSYS finite element code has been employed for performing a sequential, non linear, transient thermal-structural analysis, taking into account the thermal dependant properties of the concrete such as thermal conductivity and specific heat. Temperature distribution data of thermal analysis is required in the coupled field analysis finally to obtain and analyze thermal stresses.

3202 Vertical Vibration Suppression of Railway Vehicle by Primary and Secondary Suspension Damping Force Control

2007 ◽  
Vol 2007.16 (0) ◽  
pp. 219-222 ◽  
Author(s):  
Yoshiki SUGAHARA ◽  
Akihito KAZATO ◽  
Takahiro TOMIOKA ◽  
Reiko KOGANEI ◽  
Mitsuji SAMPEI
Keyword(s):  
Force Control ◽  
Vibration Suppression ◽  
Vertical Vibration ◽  
Railway Vehicle ◽  
Damping Force ◽  
Secondary Suspension

1211 Characteristic Test of Secondary Suspension of Railway Vehicle under Large Displacement Condition for an Earthquake

2011 ◽  
Vol 2011.20 (0) ◽  
pp. 107-110
Author(s):  
Kohei IIDA ◽  
Mitsugi SUZUKI ◽  
Takayuki TOHTAKE ◽  
Takefumi MIYAMOTO ◽  
Yukio NISHIYAMA
Keyword(s):  
Large Displacement ◽  
Railway Vehicle ◽  
Displacement Condition ◽  
Secondary Suspension

Dynamic vibration analysis of axial flux PM synchronous machines using coupled-field analysis

2008 ◽  
Vol 28 (1-2) ◽  
pp. 219-225 ◽  
Author(s):  
Byung-Jun Lee ◽  
Won-Young Jo ◽  
Jian Li ◽  
Dae-Hyun Koo ◽  
Yun-Hyun Cho
Keyword(s):  
Vibration Analysis ◽  
Field Analysis ◽  
Synchronous Machines ◽  
Axial Flux ◽  
Dynamic Vibration ◽  
Coupled Field

Ride comfort of a higher speed rail vehicle using a magnetorheological suspension system

2017 ◽  
Vol 232 (1) ◽  
pp. 32-48 ◽  
Author(s):  
Sunil Kumar Sharma ◽  
Anil Kumar
Keyword(s):  
Ride Comfort ◽  
Suspension System ◽  
Magnetorheological Damper ◽  
Ride Quality ◽  
Railway Vehicle ◽  
Passive Suspension ◽  
Railway Vehicles ◽  
Rail Vehicle ◽  
Passive Suspension System ◽  
Secondary Suspension

In a railway vehicle, vibrations are generated due to the interaction between wheel and track. To evaluate the effect of vibrations on the ride quality and comfort of a passenger vehicle, the Sperling's ride index method is frequently adopted. This paper focuses on the feasibility of improving the ride quality and comfort of railway vehicles using semiactive secondary suspension based on magnetorheological fluid dampers. Equations of vertical, pitch and roll motions of car body and bogies are developed for an existing rail vehicle. Moreover, nonlinear stiffness and damping functions of passive suspension system are extracted from experimental data. In view of improvement in the ride quality and comfort of the rail vehicle, a magnetorheological damper is integrated in the secondary vertical suspension system. Parameters of the magnetorheological damper depend on current, amplitude and frequency of excitations. Three semi-active suspension strategies with magnetorheological damper are analysed at different running speeds and for periodic track irregularity. The performance indices calculated at different semi-active strategies are juxtaposed with the nonlinear passive suspension system. Simulation results establish that magnetorheological damper strategies in the secondary suspension system of railway vehicles reduce the vertical vibrations to a great extent compared to the existing passive system. Moreover, they lead to improved ride quality and passenger comfort.

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