Vertical vibration modelling and vibration response analysis of Chinese high-speed train passengers at different locations of a high-speed train

Abstract

To study the vibration of a passenger's head and internal organs at different locations of a high-speed train, a 9-degrees-of-freedom (DOF) model of seated passengers is proposed in this paper, and its parameters of the damping coefficients and stiffnesses are identified. Next, the response of the head and internal organs is simulated by applying the vibrational stimulation generated by a 27-DOF vehicle model under track irregularity. Moreover, by applying the measured vibration signal, the following conclusions can be drawn: (1) the weakest response is detected at the centre of the compartment of the wagon, and a stronger response is detected at the centre of the bogie, with the rolling motion having a greater effect 1 m away from the centre of the bogie; (2) the response of the human internal organs is stronger than that of the head under stimulation with a lower frequency of less than 3 Hz, and a similar conclusion can be drawn in the range of 5 to 8 Hz. However, if the frequency is in the range between 8 and 15 Hz, the situation is entirely different. The responses of both the head and internal organs are reduced at frequencies over 20 Hz; (3) from the real application, it can be inferred that the greatest response can be detected at approximately 3 Hz for internal organs and at 8 Hz or higher for the head.

Keywords

High-speed train human with a seated posture vibration response comfort evaluation

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References

Sasaki

. Improving lateral ride comfort of high-speed trains applying semi-active suspension system to high-speed trains. J China Railway Soc 2004; 26: 105–115.

UIC 513:1994. Guidelines for evaluating passenger comfort in relation to vibration in railway vehicles. https://standards.globalspec.com/std/1959971/uic-513-e.

GB 5599: 1985. Railway vehicle – specification for evaluation the dynamic performance and accreditation test. https://www.spc.org.cn/online/GB%252FT%25205599-1985/.

Du YY. Vibration characteristic of human body and comfort evaluation under ambient vibration. Master Thesis, Beijing University of Technology, China, 2012.

Liang

Chiang

. A study on biodynamic models of seated human subjects exposed to vertical vibration. Int J Ind Ergonom 2006; 36: 869–890.

Griffin

. Handbook of human vibration, Pittsburgh: Academic Press, 2012.

Huang

Griffin

. Nonlinearity in apparent mass and transmissibility of the supine human body during vertical whole-body vibration. J Sound Vib 2009; 324: 429–452.

Matsumoto

Griffin

. Nonlinear subjective and biodynamic responses to continuous and transient whole-body vibration in the vertical direction. J Sound Vib 2005; 287: 919–937.

Yoshimura

Nakai

Tamaoki

. Multi-body dynamics modelling of seated human body under exposure to whole-body vibration. Ind Health 2005; 43: 441–447.

10.

Dewangan

Rakheja

Marcotte

. Gender and anthropometric effects on whole-body vibration power absorption of the seated body. J Low Freq Noise Vibr Act Control 2018; 37: 167–190.

11.

Zhang

Liu

, et al. Dynamic modeling and vibration characteristics of multi-DOF upper part system of seated human body. J Eng Desg 2008; 15: 244–249.

12.

Zhang

. Simulation research of human body on running rail vehicle. J Vib Shock 2007; 26: 76–80.

13.

Tang

Yang

Peng

. Modeling and simulation of vibration comfort of human body in a railway sleeper carriage. J Vib Shock 2010; 9: 158–161.

14.

Wang

Shi

Long

. Dynamic responses of high speed railway human body-vehicle and comfort evaluation. J Cent South Univ (Sci Tech) 2013; 44: 3046–3052.

15.

Liu

Chen

, et al. Biomechanical model of seated human body exposed to vertical vibration. J Shandong Univ (Eng Sci) 2012; 42: 103–107.

16.

Yang

Zhou

, et al. Application of rigid-flexible coupling theory to railway vehicles. Rail Locomot Motor Car 2012; 2012: 24–27.

17.

Fang C. The establishment of passenger's vibration model on high-speed train and the analysis of vibration response. Master Thesis, Southwest Jiaotong University, China, 2015.

18.

Tomioka

Takigami

. Experimental and numerical study on the effect due to passengers on flexural vibrations in railway vehicle carbodies. J Sound Vib 2015; 343: 1–19.

19.

Huang

Griffin

. Nonlinear dual-axis biodynamic response of the semi-supine human body during vertical whole-body vibration. J Sound Vib 2008; 312: 296–315.

20.

Kitazaki

Griffin

. A modal analysis of whole-body vertical vibration, using a finite element model of the human body. J Sound Vib 1997; 200: 83–103.

21.

Liu

. Some problems in constructing human body impact dynamic model. Space Med Eng 1996; 9: 381–384.

22.

Shi

. Flexible vibration analysis for car body of high-speed EMU. J Mech Sci Technol 2016; 30: 55–66.

23.

Cho

Yoon

. Biomechanical model of human on seat with backrest for evaluating ride quality. Int J Ind Ergonom 2001; 27: 331–345. .

24.

Kim

Yoon

. Development of a biomechanical model of the human body in a sitting posture with vibration transmissibility in the vertical direction. Int J Ind Ergonom 2006; 35: 817–829.

25.

Zhou

Mao

. Vehicle ergonomics, Beijing: Beijing Institute of Technology Press, 1999.

26.

TB/T 2360: 1993. Testing and appraisal methods and evaluation criteria for dynamic performance of railway locomotives. http://www.csres.com/detail/158254.html.

27.

Zong

Lam

. Biodynamic response of shipboard sitting subject to ship shock motion. J Biomech 2002; 35: 35–43.

28.

Liang

Chiang

. Modeling of a seated human body exposed to vertical vibrations in various automotive postures. Ind Health 2008; 46: 125–137.

29.

GB/T 17245:2004. Inertial parameters of adult human body. https://www.spc.org.cn/online/GB%252FT%252017245-2004/.

30.

Zhai

. Vehicle-track coupling dynamics, Beijing: Science Press, 2007.

31.

Wu ZL. Equivalent dynamic model of vehicle-passenger and study on its dynamic response. Master Thesis, Southwest Jiaotong University, China, 2010.

32.

Wang HP. Carbody self-vibration frequency study. Master Thesis, Dalian Jiaotong University, China, 2005.