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Abstract

In order to further reveal the vertical random vibration characteristics of railway vehicles, using the system engineering method, taking the passenger, the train system, and the track system (ballast track) as a unified whole, a passenger-train-track vertical coupling dynamic model is established, and the vibration differential equations of the model are derived. In the model, passengers are regarded as a single-degree-of-freedom system attached to the bottom of the carriage, the train system is represented as a 10-degree-of-freedom multi-rigid body model, the track system is regarded as the infinite long Euler beam model with three layers of continuous elastic point support, and the Hertz nonlinear elastic contact theory is applied to the wheel and rail coupling relationship. Based on this, the time-domain numerical solution of the passenger-train-track vertical coupling dynamic model is given by using Newmark-β implicit integration algorithm, and the correctness of the model is verified by the real vehicle test. This study can provide some theoretical basis for the design of railway vehicles and provide fundamentals for the coordinated control and system optimization of railway vehicle ride comfort.

Keywords

Railway vehicle passenger-train-track system vertical coupling dynamic model modeling and simulation experimental validation

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References

Eickhoff

, et al. A review of modelling methods for railway vehicle suspension components. Veh Syst Dyn 1995; 24: 469–496.

Zeng

, et al. Dynamic response of high speed vehicles and sustaining curved bridges under conditions of resonance. Eng Struct 2016; 114: 61–74.

Garg

Dukkipati

. Dynamics of railway vehicle systems, Toronto: Academic Press, 1984.

Matsuura

. Interaction of high speed railway vehicles and bridges. Res Mater Railw Technol 1974; 31: 14–17.

Matsuura

. Vertical allowable deflection of Shinkansen railway bridge. Res Mater Railw Technol 1974; 31: 445–449.

Steina

, et al. Modelling and simulation of locomotive driver's seat vertical suspension vibration isolation system. Int J Indus Ergon 2008; 38: 384–395.

Zhai

. The vertical model of vehicle-track system and its coupling dynamics. J China Railw Soc 1992; 3: 10–21.

Zhai

Sun

. A detailed model for investigating vertical interaction between railway vehicle and track. Veh Syst Dyn 1994; 23: 603–615.

Zhai

True

. Vehicle-track dynamics on a ramp and on the bridge simulation and measurements. Veh Syst Dyn 2000; 33: 604–615.

10.

Jin

Qiao

. Test verification of vertical dynamic analysis model of vehicle-track-subgrad system. J Vib Shock 2008; 27: 38–41.

11.

Sun

Dhanasekar

. A dynamic model for the vertical interaction of the rail track and wagon system. Int J Solids Struct 2002; 39: 1337–1359.

12.

Chen

, et al. Dynamic investigation of a locomotive with effect of gear transmissions under tractive conditions. J Sound Vibr 2017; 408: 220–233.

13.

Peng B. Research on modeling, simulation and virtual test of riding comfort of passenger railway vehicle. Dissertation, Central South University, People's Republic of China, 2010.

14.

Carlbom

Berg

. Passengers, seats and carbody in rail vehicle dynamics. Veh Syst Dyn 2002; 37: 290–300.

15.

Wu ZL. Equivalent dynamic model of vehicle-passenger and study on its dynamic response. Dissertation, Southwest Jiaotong University, People's Republic of China, 2013.

16.

Nagai

, et al. Coupled vibration of passenger and lightweight car-body in consideration of human-body biomechanics. Veh Syst Dyn 2006; 44: 601–611.

17.

Wang

, et al. Dynamic responses of high speed railway human bodyvehicle system and comfort evaluation. J Cent South Univ (Sci Technol) 2013; 44: 3046–3052.

18.

, et al. Vertical coupled vibration mechanism of bogie-body-seat system and joint optimization of suspension parameters for high-speed train. J Mech Eng 2018; 54: 57–67.

19.

Coermann

. The mechanical impedance of the human body in sitting and standing position at low frequencies. Hum Factors 1962; 4: 227–253.

20.

Hou

, et al. Vertical vibration characteristics of seated human bodies and the parameters of a biodynamic model with three degrees of freedom. J Harbin Eng Univ 2011; 32: 1223–1227.

21.

Zhai

. Vehicle-track coupled dynamics, 4th ed. Beijing: Science Press, 2015.

22.

Zhai

, et al. Fundamentals of vehicle–track coupled dynamics. Veh Syst Dyn 2009; 47: 1349–1376.

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A new vertical dynamic model for railway vehicle with passenger-train-track coupling vibration

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