On the response of the car from road disturbances
Keywords:full-car vehicle model, contact force, friction force, rocky road, contact dynamics
The tire/road contact dynamics is investigated in this paper by assuming a rocky road. The vehicle model to be used in simulation is a seven degree of freedom full-car model. The contact domain between the tire and the road has a shape defined by the Lamé curve, and it is identified by checking the minimum distance between bodies in contact. The nonlinear response from road disturbances is analyzed by assuming explicit relationships for contact and friction forces, respectively. Since the road is rocky, a bristle model was chosen to take into account the effect of the road irregularities on the tire’s action.
JALALI, H., AHMADIAN, H., POURAHMADIAN, F., Identification of micro-vibro-impacts at boundary condition of a nonlinear beam, Mechanical Systems and Signal Processing, 25, 3, pp. 1073–1085, 2011.
FERRI, A.A., Friction damping and isolation systems, Journal of mechanical Design, 117, B, pp. 196–206, 1995.
BERGER, E.J., Friction modeling for dynamic system simulation, Applied Mechanics Reviews, 55, 6, pp. 535–577, 2002.
GILARDI, G., SHARF, I., Literature survey of contact dynamics modelling, Mechanism and Machine Theory, 37, 10, pp. 1213–1239, 2002.
KARNOPP, D., Computer simulation of stick-slip friction in mechanical dynamic systems, Journal of Dynamic Systems, Measurement, and Control, 107, pp. 100–103, 1985.
MENQ, C.H., BIELAK, J., GRIFFIN, J.H., The influence of microslip on vibratory response, Part I: A new microslip model, Journal of Sound and Vibration, 107, 2, pp. 279–293, 1986.
BRI?AN, C., VASIU, R.V., MUNTEANU, L., A modular road auto-generating algorithm for developing the road models for driving simulators, Transportation Research part C: Emerging Technologies, 26, pp. 269–284, 2013.
MUNTEANU, L., BRI?AN, C., DUMITRIU, D., VASIU, R.V., CHIROIU, V., MELINTE, O., VL?D?REANU, V., On the modeling of the tire/road dynamic contact, Transportation Research part C: Emerging Technologies, 2013.
DUMITRIU, D., MUNTEANU, L., BRI?AN, C., CHIROIU, V., VASIU, R.V., MELINTE, O., VL?D?REANU, V., On the continuum modeling of the tire/road dynamic contact, CMES: Computer Modeling in Engineering and Sciences, 94, 2, pp. 159–173, 2013.
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