Application of oil-hydraulic actuator for active suspension of railway vehicle: experimental study

Shimamune, Ryohei; Tanifuji, Katuya

doi:10.1109/sice.1995.526705

Cited by 8 publications

(5 citation statements)

References 1 publication

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“…Therefore, they were often chosen for railway applications with pneumatic actuators in the early phase of ALS. Shimamune and Tanifuji 14 carried out an experimental analysis of hydraulic actuators for active suspension of railway vehicles. They reported that hydraulic actuators could control up to 10-Hz frequency range.…”

Section: Selection Of Actuator Typementioning

confidence: 99%

A practical approach to active lateral suspension for railway vehicles

Park

Shin

Hur

et al. 2019

Measurement and Control

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Background: Active lateral suspension (ALS) technologies have been well developed for several decades, but they have not been widely used in service operation due to relatively high costs for implementation and maintenance and concerns about fail-safe. Therefore, this paper suggests a more practical approach for the active suspension system, designed to achieve target performance with easy implementation and maintenance and high fail-safe. Methods: The control performance target and actuator type are determined from the vibration energy that the ALS has to absorb along the weight function for ride quality evaluation. The installation position of actuator and sensor is decided to decrease the time that it takes for field engineers to check the actuator for maintenance. In addition to fail-safe function of ALS system, conventional hydraulic lateral damper is installed in parallel with ALS to reduce the concern about fail-safe of the ALS. Results: Through the roller rig and filed tests, the performance of the proposed ALS was validated. Lateral ride quality was improved 7.1dB and 6.7dB in the roller rig test and field test, respectively. The fail-safe strategy was also verified during the filed test. Conclusion: Test results show that the suggested ALS is designed appropriately and can be used in practical implementation.

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Section: Selection Of Actuator Typementioning

confidence: 99%

A practical approach to active lateral suspension for railway vehicles

Park

Shin

Hur

et al. 2019

Measurement and Control

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“…However, the performance under the wide frequency range of excitations induced by the rail track irregularities may be limited. Therefore, the active suspension technologies for railway vehicles, which utilize oil cylinders and pneumatic actuators have been proposed and investigated [1][2][3][4]. The active suspension provides high control performance under the wide frequency range of excitations induced by the rail track irregularities, but it requires high power and sophisticated control implementation.…”

Section: Introductionmentioning

confidence: 99%

Semi-Active Suspension Systems for Railway Vehicles Based on Magnetorheological Fluid Dampers

Wang

Liao

2007

Volume 1: 21st Biennial Conference on Mechanical Vibration and Noise, Parts A, B, and C

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In this paper, a seventeen degree-of-freedom (DOF) model for a full scale railway vehicle integrated with the semi-active controlled magnetorheological (MR) fluid dampers in its secondary suspension system is proposed to cope with the lateral, yaw, and roll motions of the car body, trucks, and wheelsets. The governing equation considering the dynamics of the railway vehicle integrated with MR fluid dampers in the secondary suspension system and the dynamics of the rail track irregularities are developed. The Linear Quadratic Gaussion (LQG) control law using the acceleration feedback is adopted, in which the state variables are estimated from the measurable accelerations with a Kalman estimator. In order to evaluate how the performances of the railway vehicle system integrated with the semi-active controlled MR fluid dampers can be improved, the lateral, yaw, and roll accelerations of the car body, trucks, and wheelsets of a full scale railway vehicle integrated with MR fluid dampers, which are controlled (the semi-active) and uncontrolled (the passive on and passive off) respectively, are analyzed under the random track irregularities based on the established governing equations and the modelled track irregularities. The simulation results not only show the control effectiveness of the railway vehicle with the semi-active suspension system based on MR fluid dampers for railway vehicles, but also illustrate that the semi-active railway vehicle suspension system based on MR fluid dampers com-

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“…However the performance on the wide frequency range could be limited. Therefore, several researchers (Sasaki et al, 1994;Shimamune and Tanifuji, 1995) have proposed and investigated active suspension technology for railway vehicles, which utilize oil cylinders and pneumatic actuators. The active suspension provides high control performance over wide frequency range, but it requires high power and sophisticated control implementation.…”

Section: Introductionmentioning

confidence: 99%

Semiactive Vibration Control of Train Suspension Systems via Magnetorheological Dampers

Liao

Wang

2003

Journal of Intelligent Material Systems and Structures

121

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This paper is aimed to show the feasibility for improving the ride quality of railway vehicles with semiactive secondary suspension systems using magnetorheological (MR) dampers. A nine degree-of-freedom railway vehicle model, which includes a car body, two trucks and four wheelsets, is proposed to cope with vertical, pitch and roll motions of the car body and trucks. The governing equations of the railway vehicle suspension systems integrated with MR dampers are developed. To illustrate the feasibility and effectiveness of the controlled MR dampers on railway vehicle suspension systems, the LQG control law using the acceleration feedback is adopted as the system controller, in which the state variables are estimated from the measurable accelerations with the Kalman estimator. In order to make the MR dampers track the optimal damping forces, a damper controller to command the voltage to the current drivers for the MR dampers is proposed. The acceleration responses of the car body of the train vehicle with semiactive secondary suspension system integrated with MR dampers are evaluated under random and periodical track irregularities. This semiactive controlled system is also compared to the conventional passive suspension system using viscous dampers without MR dampers, and the secondary suspension system integrated with MR dampers in passive on and passive off modes. The simulation results show that the vibration control of the train suspension system with semiactive controlled MR dampers is feasible and effective.

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Application of oil-hydraulic actuator for active suspension of railway vehicle: experimental study

Cited by 8 publications

References 1 publication

A practical approach to active lateral suspension for railway vehicles

A practical approach to active lateral suspension for railway vehicles

Semi-Active Suspension Systems for Railway Vehicles Based on Magnetorheological Fluid Dampers

Semiactive Vibration Control of Train Suspension Systems via Magnetorheological Dampers

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