This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Modeling of Tracked Vehicle Incorporating Non-Linear, Sequential Heavy Duty Hydro-Pneumatic Strut
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 19, 2005 by The Automotive Research Association of India in India
Annotation ability available
Event: SIAT 2005
This paper consists of two parts, modeling of passive sequential strut and modeling of 8-DOF high mobility tracked vehicle incorporating the strut.
In first part, a tunable passive, sequential, heavy-duty hydro-pneumatic mono-tube strut is discussed to achieve variable damping for a tracked vehicle suspension. The hydro-pneumatic strut is modeled as a nonlinear dynamical system incorporating nonlinearities due to orifice flow, gas spring and pressure relief mechanisms. The shock and vibration isolation performance of hydro-pneumatic strut are evaluated and compared to the vehicle model employing a constant orifice strut. It is shown that the vehicle ride performance is improved considerably using an adequately tuned sequential hydro-pneumatic strut.
In second part, a twelve-road wheel high mobility tracked vehicle, is modeled as an 8 degrees-of-freedom in-plane non-linear dynamic system incorporating bounce and pitch motion of the sprung mass and bounce motion on six road wheels. Ride response characteristics of non-linear vehicle model are studied for different ground inputs.
CitationHada, M., Raghuvanshi, V., and Masutage, S., "Modeling of Tracked Vehicle Incorporating Non-Linear, Sequential Heavy Duty Hydro-Pneumatic Strut," SAE Technical Paper 2005-26-070, 2005, https://doi.org/10.4271/2005-26-070.
- Karnopp, D., Crosby, M. J. and Harwood, R. A., “Vibration Control Using Semi- Active Force Generator”, J. of Engg. for Industry, pp. 619–625, 1994
- Rakheja, S. and Sankar, S., “Vibration and Shock Isolation Performance of a Semi- Active ‘On-Off’ Damper”, J. of Vibration Acoustics, Stress and Reliability in Design (Transaction of ASME), Vol. 107, pp. 398.403, 1995
- Rekheja, S., Hong Su and Sankar, T. S. “Analysis of a Passive Sequential Damper for Vehicle Suspension”, J. of Vehicle System Dynamics, Vol. 19, pp. 289–312, 1990
- Rakheja, S., Afonso, M. F. R. and Sankar, S., “Dynamic Analysis of Tracked Vehicles with Trailing Arm Suspension and Assessment of Ride Vibrations”, Int. Jl. of Vehicle Design, Vol. 13(1), pp. 56–77, 1992
- Dhir, A. and Sankar, Sheshadri “Analytical Track Models for Ride Dynamic Simulation of Tracked Vehicles”, J. of Terramechanics, Vol. 31(2), pp. 107–138, 1994
- Dhir, A. and Sankar, S., “Ride Dynamics of High-Speed Tracked Vehicles: Simulation with Field Validation”, J. of Vehicle System Dynamics, Vol. 23, pp. 379–409, 1994
- Merritt, H. E., “Hydraulic Control Systems”, John Wiley & Sons, 1967
- Purdy, D. J., “Theoretical and Experimental Investigation into an Adjustable Automotive Damper”, Proc. IMechE., Vol. 214(D), pp. 265–282, 2000
- Thompson J. F. “Theory of Vibration with Applications”, Prentic Hall, 2nd Edition, 1971