Transfer Path Contribution to Floor Vibration of Metro Vehicles Based on Operational Transfer Path Analysis Method

Operational transfer path analysis (OTPA) is an advanced vibration and noise transfer path identification and contribution evaluation method. However, the application of OTPA to rail transit vehicles considers only the excitation amplitude and ignores the influence of the excitation phase. This stud...

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Bibliographic Details
Published in:Chinese journal of mechanical engineering 2022-12, Vol.35 (1), p.23-11, Article 23
Main Authors: Peng, Laixian, Han, Jian, Nie, Jiaxing, Xiao, Xinbiao, Mi, Caiying
Format: Article
Language:English
Subjects:
Advanced Transportation Equipment
Air springs
Amplitudes
Contribution analysis
Electrical Machines and Networks
Electronics and Microelectronics
Engineering
Engineering Thermodynamics
Excitation
Heat and Mass Transfer
Instrumentation
Machines
Manufacturing
Mechanical Engineering
Metro vehicles
Optimization
Original Article
OTPA
Power Electronics
Principal components analysis
Processes
Secondary suspension
Signal processing
Theoretical and Applied Mechanics
Transfer path optimization scheme
Vehicles
Vibration
Vibration analysis
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Summary:Operational transfer path analysis (OTPA) is an advanced vibration and noise transfer path identification and contribution evaluation method. However, the application of OTPA to rail transit vehicles considers only the excitation amplitude and ignores the influence of the excitation phase. This study considers the influence of the excitation amplitude and phase, and analyzes the contribution of the secondary suspension path to the floor vibration when the metro vehicle runs at 60 km/h, using an analysis based on the OTPA method. The results show that the vertical direction of the anti-rolling torsion bar area provides the maximum contribution to the floor vibration, with a contribution of 22.1%, followed by the longitudinal vibration of the air spring area, with a contribution of 17.1%. Based on the contribution analysis, a transfer path optimization scheme is proposed, which may provide a reference for the optimization of the transfer path of metro vehicles in the future.
ISSN:1000-9345
2192-8258
DOI:10.1186/s10033-022-00692-6