HEAVY DUTY TRUCK RIDE-COMFORT ANALYSIS BY COMPUTER SIMULATION

The vibration and ride-comfort of some heavy duty trucks were analyzed by the simple model developed by finite element method. Ride-comfort of heavy duty trucks is significantly influenced by bending vibration of the frame, so the frame was modeled by a BAR element having a number of different cross sections. Bending eigenvalue of large components such as the engine and cab are rather high compared with analysis frequency areas, so a separate model as a rigid body was established. For non-linear components such as mounting rubber, tire, leaf spring, the best data from specific areas of vibration were selected for inputting into the model and corrections were added to the model. For modeling check, frequency response of consolidating several kinds of component models was calculated in the initial stage of the system model. And each component model was consolidated with the frame model to obtain the system model. From this system model calculation results of frequency response and PSD response were obtained for making comparison with actual test and were found to be sufficient to make qualitative evaluation of ride-comfort. Consequently this simulation method was used in design stages, such as development of cab-suspension and improvement of rid-comfort of tractor pulling trailer.

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  • Corporate Authors:

    Society of Automotive Engineers of Japan

    10-2 Goban-cho, Chiyoda-ku
    Tokyo,   Japan 
  • Authors:
    • Sakuma, N
    • Kadono, I
    • Dohi, M
    • NAKAI, H
  • Publication Date: 1985-4

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Filing Info

  • Accession Number: 00450764
  • Record Type: Publication
  • Source Agency: National Highway Traffic Safety Administration
  • Report/Paper Numbers: HS-038 933
  • Files: HSL, TRIS, USDOT
  • Created Date: Dec 31 1985 12:00AM