Nonlinear coupled dynamic modelling of driver-seat-cab system and biomechanical behaviour prediction

Zhao, Leilei (author), Yu, Yuewei (author), Cao, Jianhu (author), Zhou, Weiwei (author)

The biomechanical responses of the driver-truck system in a dynamic environment have become a significant concern in the design and control of trucks. When evaluating the riding comfort of the seat-cab system, it is necessary to predict the biomechanical responses of the driver’s different parts and directions. However, there is no reliable model and method for effectively predicting the response characteristics of the driver-seat-cab system. Aiming at such problem, firstly, based on the 7 DOF (degree-of-freedom) seated human biodynamic model established previously, a 10 DOF non-linear dynamic model of the driver-seat-cab system was created, and its vibration differential equations were established. Secondly, the vibration signals for simulation and verification were collected through the road test using a truck. Thirdly, based on the Newmark-β integration method, the specific solution process of the model was given. The non-linear damping coefficients of the front and rear dampers for the cab suspensions were measured with a bench test. Moreover, the simulations were conducted based on the measured model parameters, taking the collected frame vibration signals as the inputs. The results show that the simulation results agree with the test results, proving that the dynamic model can effectively predict the driver’s biomechanical responses. Finally, some useful conclusions were obtained through the simulation analysis. The established model and conclusions can provide technical support for comfort evaluation, optimization design, and control of the seat-cab suspension system.

• Language: English
• Keywords: driver-seat-cab system, driver’s health, dynamic modeling, biomechanical responses
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2022
• Number of pages: Str. 90-100
• Numbering: Vol. 68, no. 2
• PID: 20.500.12556/RUL-135445
• UDC: 531.395:004.94
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2021.7429
• COBISS.SI-ID: 100940035
• Publication date in RUL: 15.03.2022

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
• Licensing start date: 16.12.2021
• Applies to: Accepted for publication

Secondary language

• Language: Slovenian
• Title: Nelinearen sklopljeni dinamični model sistema voznik-sedežkabina in napoved biomehanskega vedenja
• Keywords: avtomobilska tehnika, kakovost vožnje, sistem voznik-sedež-kabina, voznikovo zdravje, dinamično modeliranje, biomehanski odziv

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: Nature Science Foundation of Shandong
• Project number: ZR2020ME127

• Funder: Other - Other funder or multiple funders
• Funding programme: National Natural Science Foundation of China
• Project number: 11802338