Suppression of Vertical Vibration in Railway Vehicles by Damping Force Control of Primary Suspension Using an LQG Controller

Sugahara, Yoshiki; Takigami, Tadao; Kazato, Akihito; Koganei, Reiko; Sampei, Mitsuji

doi:10.1299/jsdd.2.251

Cited by 12 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The notable feature of this method is that the car body and the secondary suspension system are not modified. The favorable effects of this method on vibration suppression have already been confirmed by numerical simulation and vibration excitation tests using a rolling stock test bench as shown in [13].…”

mentioning

confidence: 68%

Vertical Vibration Suppression System for Railway Vehicles Based on Primary Suspension Damping Control — System Development and Vehicle Running Test Results —

Sugahara¹,

Watanabe²,

Takigami³

et al. 2011

QR of RTRI

Self Cite

View full text Add to dashboard Cite

show abstract

mentioning

confidence: 68%

Vertical Vibration Suppression System for Railway Vehicles Based on Primary Suspension Damping Control — System Development and Vehicle Running Test Results —

Sugahara¹,

Watanabe²,

Takigami³

et al. 2011

QR of RTRI

Self Cite

View full text Add to dashboard Cite

show abstract

“…A control strategy for an adjustable damper in primary vertical suspension was explored for suppressing highfrequent first bending mode of the car-body vibration [39,68]. Through the idea of modal separation, both bounce and pitch motions of the bogie are controlled according to the sky-hook control.…”

Section: Semi-active Controlmentioning

confidence: 99%

Active suspension in railway vehicles: a literature survey

Giossi

Persson

et al. 2020

Rail. Eng. Science

View full text Add to dashboard Cite

Since the concept of active suspensions appeared, its large possible benefits has attracted continuous exploration in the field of railway engineering. With new demands of higher speed, better ride comfort and lower maintenance cost for railway vehicles, active suspensions are very promising technologies. Being the starting point of commercial application of active suspensions in rail vehicles, tilting trains have become a great success in some countries. With increased technical maturity of sensors and actuators, active suspension has unprecedented development opportunities. In this work, the basic concepts are summarized with new theories and solutions that have appeared over the last decade. Experimental studies and the implementation status of different active suspension technologies are described as well. Firstly, tilting trains are briefly described. Thereafter, an indepth study for active secondary and primary suspensions is performed. For both topics, after an introductory section an explanation of possible solutions existing in the literature is given. The implementation status is reported. Active secondary suspensions are categorized into active and semi-active suspensions. Primary suspensions are instead divided between acting on solid-axle wheelsets and independently rotating wheels. Lastly, a brief summary and outlook is presented in terms of benefits, research status and challenges. The potential for active suspensions in railway applications is outlined.

show abstract

“…It is conceivable that various control theories are available for controlling the primary vertical dampers [14]. The sky-hook control theory was adopted in this study.…”

Section: Control Theory For Primary Vertical Dampersmentioning

confidence: 99%

“…Here, i = 1, 2, j = 1, 2, and φ 1 (x) is the eigenfunction of the first bending mode vibration of the car body [9,14].…”

Section: Derivation Of a Railway Vehicle Model With Nine Degrees Of Fmentioning

confidence: 99%

“…First, the vibration of the bogie, which causes bending vibration in the car body, is suppressed by controlling the primary suspension system. Thus, the transmission of vibration to the car body is suppressed at the side of the bogie to reduce the bending vibration of the car body [13,14]. Next, under conditions in which the vibration in the bogie frame that causes the bending vibration of the car body is removed, the air springs (which serve as the secondary suspension) are also controlled to reduce the rigid-body-mode vibration of the car body.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Suppression of vertical bending and rigid-body-mode vibration in railway vehicle car body by primary and secondary suspension control: Results of simulations and running tests using Shinkansen vehicle

Sugahara

Kazato

Koganei

et al. 2009

Proceedings of the Institution of Mechanical Engineers, Part F:

View full text Add to dashboard Cite

Abstract:To improve ride comfort in railway vehicles, the suppression of vertical bending vibration and rigid-body-mode vibration in the car body is essential. In this paper, a system is proposed that aims to reduce bending and rigid-body-mode vibration simultaneously by introducing damping control devices in the primary and secondary suspensions. The technique involves a control system of primary vertical dampers and air springs; the former are used to suppress the first bending mode vibration; the latter, to suppress the rigid-body-mode vibration. The results of both simulations and vehicle running tests on the Sanyo-Shinkansen line demonstrate that this system reduced vertical vibrations in the bogies and the car body using the sky-hook control theory. In the running tests in particular, the system reduced the vertical vibration acceleration PSD peak value in the first bending mode to almost 20 per cent and in the rigid body mode to almost 50 per cent compared with the case when the system was not used. As a result, the ride quality level L T (a widely used index of ride comfort in Japan) decreased by at least 3 dB, indicating greater ride comfort.

show abstract

Suppression of Vertical Vibration in Railway Vehicles by Damping Force Control of Primary Suspension Using an LQG Controller

Cited by 12 publications

References 5 publications

Vertical Vibration Suppression System for Railway Vehicles Based on Primary Suspension Damping Control — System Development and Vehicle Running Test Results —

Vertical Vibration Suppression System for Railway Vehicles Based on Primary Suspension Damping Control — System Development and Vehicle Running Test Results —

Active suspension in railway vehicles: a literature survey

Suppression of vertical bending and rigid-body-mode vibration in railway vehicle car body by primary and secondary suspension control: Results of simulations and running tests using Shinkansen vehicle

Contact Info

Product

Resources

About