Development of Longitudinal Excitation Suppression Devices for Reducing Car-body Elastic Vibrations in Bullet Trains

This study proposes a method to reduce car body elastic vibrations in bullet trains caused by longitudinal excitation via traction devices and yaw dampers. We devised two vibration reduction devices—"displacement-dependent rubber bushes" and "mesh springs" to suppress the longitu...

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Published inQuarterly Report of RTRI Vol. 64; no. 3; pp. 166 - 172
Main Authors AIDA, Ken-ichiro, TAKIGAMI, Tadao, AKIYAMA, Yuki, MAKITA, Yasunobu
Format Journal Article
LanguageEnglish
Published Tokyo Railway Technical Research Institute 01.08.2023
Japan Science and Technology Agency
Subjects
Automotive bodies
bullet train
car body
Dampers
Devices
elastic vibration
Excitation
Rolling stock
rubber bush
Springs (elastic)
Stability
Test vehicles
traction device
Vibration control
Vibration isolators
Yaw
yaw damper
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Abstract This study proposes a method to reduce car body elastic vibrations in bullet trains caused by longitudinal excitation via traction devices and yaw dampers. We devised two vibration reduction devices—"displacement-dependent rubber bushes" and "mesh springs" to suppress the longitudinal excitation force. We conducted excitation tests using a Shinkansen (bullet train) type test vehicle in a rolling stock testing plant to examine the running stability and car body vibrations suppression performance when mounting the developed devices. Subsequently, we confirmed that these devices meet the required performance for running stability and reduce the elastic vibrations in the car body.
AbstractList This study proposes a method to reduce car body elastic vibrations in bullet trains caused by longitudinal excitation via traction devices and yaw dampers. We devised two vibration reduction devices—"displacement-dependent rubber bushes" and "mesh springs" to suppress the longitudinal excitation force. We conducted excitation tests using a Shinkansen (bullet train) type test vehicle in a rolling stock testing plant to examine the running stability and car body vibrations suppression performance when mounting the developed devices. Subsequently, we confirmed that these devices meet the required performance for running stability and reduce the elastic vibrations in the car body.
Author AKIYAMA, Yuki
TAKIGAMI, Tadao
AIDA, Ken-ichiro
MAKITA, Yasunobu
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Cites_doi 10.2219/rtriqr.52.141
10.1007/s40534-020-00207-w
10.1080/00423114.2010.490589
10.1243/0954409981530689
10.2219/rtriqr.58.3_182
10.1299/jsmetld.2021.30.SS1-3-3
10.1088/1742-6596/744/1/012142
10.2219/rtriqr.49.1
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Snippet This study proposes a method to reduce car body elastic vibrations in bullet trains caused by longitudinal excitation via traction devices and yaw dampers. We...
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SubjectTerms Automotive bodies
bullet train
car body
Dampers
Devices
elastic vibration
Excitation
Rolling stock
rubber bush
Springs (elastic)
Stability
Test vehicles
traction device
Vibration control
Vibration isolators
Yaw
yaw damper
Title Development of Longitudinal Excitation Suppression Devices for Reducing Car-body Elastic Vibrations in Bullet Trains
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