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Modeling and parameter identification of distributed parameter dynamics model for a human body
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Zhe-yao CHEN1, Hao-qi WANG1, Jun CHEN1, Yong-fang ZHAO2, Hai-ling GUO2
Journal of Vibration Engineering | 2024, 37(9) : 1468 - 1475
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Journal of Vibration Engineering | 2024, 37(9): 1468-1475
Modeling and parameter identification of distributed parameter dynamics model for a human body
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Zhe-yao CHEN1, Hao-qi WANG1, Jun CHEN1, Yong-fang ZHAO2, Hai-ling GUO2
Affiliations
  • 1College of Civil Engineering,Tongji University,Shanghai 200092,China
  • 2Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine,Shanghai 201203,China
Published: 2024-09-28 doi: 10.16385/j.cnki.issn.1004-4523.2024.09.003
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Establishing human body dynamics model to obtain human natural vibration frequency is a common scientific challenge in various fields such as civil engineering，traffic engineering，aerospace，rehabilitation medicine and so on. The spring-mass-damper （SMD） model is most commonly used in previous studies，which actually is not consistent with the distribution characteristics of human mass and stiffness along the height. In this study，a distributed parameter dynamics model of the human body with a pair of biomechanical forces is proposed，and the analytical solution of human natural frequency is theoretically derived. Therefore，a frequency recognition method based on gait tests is proposed. 247 subjects are organized to conduct gait tests，and their stiffness and natural frequency are identified. The rationality and applicability of the proposed model are verified from multiple perspectives： by fitting the probability distribution of results，comparing the results with other researches，and analyzing the results across different age groups.

human body dynamics model  /  parameter identification  /  distributed parameter model  /  spring-mass-damper model
Zhe-yao CHEN, Hao-qi WANG, Jun CHEN, Yong-fang ZHAO, Hai-ling GUO. Modeling and parameter identification of distributed parameter dynamics model for a human body[J]. Journal of Vibration Engineering, 2024 , 37 (9) : 1468 -1475 . DOI: 10.16385/j.cnki.issn.1004-4523.2024.09.003
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Year 2024 volume 37 Issue 9
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Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2024.09.003
  • Receive Date：2022-11-29
  • Online Date：2026-02-12
  • Published：2024-09-28
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  • Received：2022-11-29
  • Revised：2023-03-18
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Affiliations
    1College of Civil Engineering,Tongji University,Shanghai 200092,China
    2Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine,Shanghai 201203,China
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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