Snowmobile model for ride dynamic analysis
by Paul-Andre Hebert; Subhash Rakheja; Marc J. Richard
International Journal of Vehicle Design (IJVD), Vol. 64, No. 2/3/4, 2014

Abstract: Snowmobiling involves exposure to high magnitude vibrations. Ride comfort thus forms a major design requirement, currently met through iterative prototyping and field-testing. This study thus aims at developing a snowmobile ride model. The nine degrees-of-freedom ADAMS model includes sub-models for: detailed suspension, track, trail profile, deformable ground, quasi-steady traction, and simplified rider and seat. Four trail roughnesses were characterised through Power Spectral Density. Field tests provided vehicle response. Simulations' agreement ranged from poor to good. A parametric analysis pointed to ride comfort improvements reaching 58%, based on the rms vertical acceleration at the seat.

Online publication date: Thu, 30-Oct-2014

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