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Analytical and Numerical Investigations of Mechanical Vibration in the Vertical Direction of a Human Body in a Driving Vehicle using Biomechanical Vibration Model

Maher Al-Baghdadi, Muhsin Jaber Jweeg and Muhannad Al-Waily

Pertanika Journal of Science & Technology, Pre-Press

DOI: https://doi.org/10.47836/pjst.29.4.30

Published: 2021-10-18

The main reason that affects the discomfort in a driving vehicle is the vibration response. The human body vibration leads to many malfunctions in both comfort and performance in human health. As a result, the human body’s simulation in sitting posture in the driving vehicle has a strategic relationship for all Tires and vehicles manufacturers. The digital process simulation of the human body seat vehicle vibration shows two significant advantages. The first advantage is the prevention of the high-cost modifications in the construction stage of the vehicle, while the second one describes the stability test during the undesirable vibrations. This study modelled the human body’s dynamic characterisations, natural frequency, and mechanical response when seated in the driving vehicle with vibration transmissibility in the vertical direction have been using the biomechanical vibration model. The vertical vibrations and the transmissibility of the human body dynamic response are presented in detail. Exciting results have been obtained, and they are significant for human health, which relates to sitting posture in the driving vehicle. It can assist in understanding the influences of low-frequency vibration on human health, comfort, and performance, and therefore it could be applied for ride comfort evaluation. An analytical solution to derive the general equations of motion for the human system was developed. Then, using the vibration analysis technique and the corresponding equations, the accurate dynamic response of the selected mode is identified. Furthermore, the mathematical modelling for free vibration using the finite element analysis has been performed to determine the appropriate values and set its description. Then, the comparison results of the two techniques have been carried out.

  • Abbas, H. J., Jweeg, M. J., Al-Waily, M., & Diwan, A. A. (2019). Experimental testing and theoretical prediction of fiber optical cable for fault detection and identification. Journal of Engineering and Applied Sciences, 14(2), 430-438. https://doi.org/10.36478/jeasci.2019.430.438

  • Al-Waily, M. (2005). Analysis of stiffened and unstiffened composite plates subjected to time dependent loading (MSc Thesis). University of Kufa, Iraq.

  • Bayoglu, R., Galibarov, P. E., Verdonschot, N., Koopman, B., & Homminga, J. (2019). Twente spine model: A thorough investigation of the spinal loads in a complete and coherent musculoskeletal model of the human spine. Medical Engineering & Physics, 68, 35-45. https://doi.org/10.1016/j.medengphy.2019.03.015

  • Desai, R., Guha, A., & Seshu, P. (2018). Multibody biomechanical modelling of human body response to direct and cross axis vibration. Procedia Computer Science 133, 494-501. https://doi.org/10.1016/j.procs.2018.07.062

  • Griffin, M. J. (1990). Handbook of human vibration. Academic Press.

  • Guo, L. X., Dong, R. C., & Zhang, M. (2016). Effect of lumbar support on seating comfort predicted by a whole human body-seat model. International Journal of Industrial Ergonomics, 53, 319-327. https://doi.org/10.1016/j.ergon.2016.03.004

  • ISO 2631-1. (1997). Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration. International Organizational for Standardization

  • ISO 5982. (2001). Mechanical vibration and shock - Range of idealized values to characterize seated-body biodynamic response under vertical vibration. International Organizational for Standardization.

  • Kim, T. H., Kim, Y. T., & Yoon, Y. S. (2005). Development of a biomechanical model of the human body in a sitting posture with vibration transmissibility in the vertical direction. International Journal of Industrial Ergonomics, 35, 817-829. https://doi.org/10.1016/j.ergon.2005.01.013

  • Koutras, C., Pérez, J., Kardash, K., & Otaduy, M. A. (2021). A study of the sensitivity of biomechanical models of the spine for scoliosis brace design. Computer Methods and Programs in Biomedicine 207, Article 106125. https://doi.org/10.1016/j.cmpb.2021.106125

  • Mohanty, P. P., & Mahapatra, S. S. (2014). A finite element approach for analyzing the effect of cushion type and thickness on pressure ulcer. International Journal of Industrial Ergonomics, 44, 499-509. https://doi.org/10.1016/j.ergon.2014.03.003

  • Nimmen, K. V., Lombaert, G., Roeck, G. D., & den Broeck, P. V. (2017). The impact of vertical human-structure interaction on the response of footbridges to pedestrian excitation. Journal of Sound and Vibration, 402, 104-121. https://doi.org/10.1016/j.jsv.2017.05.017

  • Rao, S. S. (2007). Vibration of continuous systems. John Wiley and Sons, Inc.

  • Rao, S. S. (2018). Mechanical vibrations. Pearson Education, Inc.

  • Vergari, C., Chen, Z., Robichon, L., Courtois, I., Ebermeyer, E., Vialle, R., Langlais, T., Pietton, R., & Skalli, W. (2020). Towards a predictive simulation of brace action in adolescent idiopathic scoliosis. Computer Methods in Biomechanics and Biomedical Engineering, 24(8), 874-882. https://doi.org/10.1080/10255842.2020.1856373

  • Zheng, G., Qiu, Y., & Griffin, M. J. (2011). An analytic model of the inline and cross-axis apparent mass of the seated human body exposed to vertical vibration with and without a backrest. Journal of Sound and Vibration, 330, 6509-6525. https://doi.org/10.1016/j.jsv.2011.06.026

ISSN 0128-7702

e-ISSN 2231-8534

Article ID

JST-2620-2021

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