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Abstract

A comprehensive theory for sensing deflections in helical compression springs and multi-leaf curved bar springs using piezoelectric copolymer film is developed and presented. This sensing capability is applied to the problem of sensing ground roughness in adaptive damping vehicular suspensions. A computer simulation of a vehicle equipped with an adaptive suspension system incorporating spring deflection sensors which is traveling over randomly rough surface is performed using MATLAB's SIMULINK module. A new algorithm for processing the sensor output and adapting the damping force to road conditions is presented and shown to be insensitive to sensor noise. The control algorithm is realized in SIMULINK, and the surface is simulated by a specifically designed random signal. The adaptive damping is shown to dramatically reduce inertial forces acting on the vehicle during travel over rough surfaces.

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References

AMP, Inc, Flexible Film Products Group. 1994 . "Piezo Film Sensors—Technical Manual", USA.

Chironis, N. P. , Editor. 1961. "Spring Design and Application", New York, NY: McGraw-Hill.

Dixon, J.C. 1991. "Tyres, Suspension and Handling", Cambridge, UK : Cambridge University Press.

Miller, S.E. 1995. "Distributed Modal Control of Piezolaminated Anisotropic Planar and Cylindrical Structures", Ph.D. thesis. Haifa , Israel: Technion - I. I.T.

Miller, S.E. , Y. Oshman and H. Abramovich. 1994. "Modal Transducer Theory and Selective Modal Vibration Control for Anisotropic PiezoLaminated Plates", Technical Report TAE No. 715, Haifa, Israel: Technion—Israel Institute of Technology.

Pletner, B. and H. Abramovich. 1995. "A SIMULINK Realization of an Adaptive Suspension with Piezoelectric Co-Polymeric Sensors", Technical Report TAE No. 743, Haifa, Israel: Technion-Israel Institute of Techology.

Roark, R.J. and W.C. Young. 1985. "Formulas for Stress and Strain", New York, NY: McGraw-Hill.

Sharp, R.S. and D.A. Crolla. 1987. "Road Vehicle Suspension System Design—A Review", Vehicle System Dynamics, 16:167-192.

Shigley, J. E. and C. R. Mischke , Editors in Chief. 1986. "Standard Handbook of Machine Design", New York, NY: McGraw-Hill, Chapter 24.

10.

Tsuka, H. , J. Nakano , Y. Yokoya , A. Fukami and Y. Hirano. 1990. "A New Electronic Controlled Suspension Using Piezoelectric Ceramics ; IEEE Workshop of Electronic Applications in Transportation.

11.

Yeh, M.K. and C.Y. Chin. 1994. "Dynamic Response on Circular Shaft with Piezoelectric Sensor", Journal of Intelligent Material Systems and Structures, 5:833-840.

Adaptive Suspension of Vehicles Using Piezoelectric Sensors

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