Study on the coupling vibration characteristics at the junction of metro carriages

Aiming at the problem of dislocation at the junction of metro carriages, a three DOF (degree of freedom) coupled vibration model of the junction of metro carriages was established. Then, the kinetic equation of vibration model was established by Lagrange method, the transfer function of the vibratio...

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Autores principales:	Ruqiang MOU, Le LI
Formato:	article
Lenguaje:	EN
Publicado:	The Japan Society of Mechanical Engineers 2021
Materias:	coupled vibration model kinetic equation transfer function excitation signal amplitude difference spring stiffness damping coefficient Mechanical engineering and machinery TJ1-1570
Acceso en línea:	https://doaj.org/article/69540be00d6a4820be2f01e16b8ccb33
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spelling	oai:doaj.org-article:69540be00d6a4820be2f01e16b8ccb332021-11-29T06:07:02ZStudy on the coupling vibration characteristics at the junction of metro carriages2187-974510.1299/mej.20-00526https://doaj.org/article/69540be00d6a4820be2f01e16b8ccb332021-04-01T00:00:00Zhttps://www.jstage.jst.go.jp/article/mej/8/3/8_20-00526/_pdf/-char/enhttps://doaj.org/toc/2187-9745Aiming at the problem of dislocation at the junction of metro carriages, a three DOF (degree of freedom) coupled vibration model of the junction of metro carriages was established. Then, the kinetic equation of vibration model was established by Lagrange method, the transfer function of the vibration model was deduced by Laplace transform, and the control system of vibration model was established by SIMULINK. In addition, the excitation signals such as the traction force, resistance force, lateral force and longitudinal force at wheel and rail were studied. Through simulation, obtain the coupling vibration characteristics under different parameters including traction force, spring stiffness and damping coefficient. The simulation results show that the amplitude differences ( x1 － x2 / y1 － y2 / z1 － z2 and x5 － x6 / y5 － y6 / z5 － z6 ) (Fig.2) at the junction of TC1-MP1 and MP2-TC2 (Fig.1) are more larger than other junctions. When the traction force is from 254 to 384kN, the larger the traction force, the larger the amplitude difference. When the parameters are: kx ≥ 3.5×107 N/m, ky ≥ 1.7×105 N/m, kz ≥ 2.75×105 N/m, cx ≥ 4×105 Ns/m, cy ≥ 1×105 Ns/m, cz1 ≥ 3×104 Ns/m， the dislocation is small.Ruqiang MOULe LIThe Japan Society of Mechanical Engineersarticlecoupled vibration modelkinetic equationtransfer functionexcitation signalamplitude differencespring stiffnessdamping coefficientMechanical engineering and machineryTJ1-1570ENMechanical Engineering Journal, Vol 8, Iss 3, Pp 20-00526-20-00526 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coupled vibration model kinetic equation transfer function excitation signal amplitude difference spring stiffness damping coefficient Mechanical engineering and machinery TJ1-1570
spellingShingle	coupled vibration model kinetic equation transfer function excitation signal amplitude difference spring stiffness damping coefficient Mechanical engineering and machinery TJ1-1570 Ruqiang MOU Le LI Study on the coupling vibration characteristics at the junction of metro carriages
description	Aiming at the problem of dislocation at the junction of metro carriages, a three DOF (degree of freedom) coupled vibration model of the junction of metro carriages was established. Then, the kinetic equation of vibration model was established by Lagrange method, the transfer function of the vibration model was deduced by Laplace transform, and the control system of vibration model was established by SIMULINK. In addition, the excitation signals such as the traction force, resistance force, lateral force and longitudinal force at wheel and rail were studied. Through simulation, obtain the coupling vibration characteristics under different parameters including traction force, spring stiffness and damping coefficient. The simulation results show that the amplitude differences ( x1 － x2 / y1 － y2 / z1 － z2 and x5 － x6 / y5 － y6 / z5 － z6 ) (Fig.2) at the junction of TC1-MP1 and MP2-TC2 (Fig.1) are more larger than other junctions. When the traction force is from 254 to 384kN, the larger the traction force, the larger the amplitude difference. When the parameters are: kx ≥ 3.5×107 N/m, ky ≥ 1.7×105 N/m, kz ≥ 2.75×105 N/m, cx ≥ 4×105 Ns/m, cy ≥ 1×105 Ns/m, cz1 ≥ 3×104 Ns/m， the dislocation is small.
format	article
author	Ruqiang MOU Le LI
author_facet	Ruqiang MOU Le LI
author_sort	Ruqiang MOU
title	Study on the coupling vibration characteristics at the junction of metro carriages
title_short	Study on the coupling vibration characteristics at the junction of metro carriages
title_full	Study on the coupling vibration characteristics at the junction of metro carriages
title_fullStr	Study on the coupling vibration characteristics at the junction of metro carriages
title_full_unstemmed	Study on the coupling vibration characteristics at the junction of metro carriages
title_sort	study on the coupling vibration characteristics at the junction of metro carriages
publisher	The Japan Society of Mechanical Engineers
publishDate	2021
url	https://doaj.org/article/69540be00d6a4820be2f01e16b8ccb33
work_keys_str_mv	AT ruqiangmou studyonthecouplingvibrationcharacteristicsatthejunctionofmetrocarriages AT leli studyonthecouplingvibrationcharacteristicsatthejunctionofmetrocarriages
_version_	1718407589350342656

Study on the coupling vibration characteristics at the junction of metro carriages

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