Accession Number : ADP000964

Title :   Vehicle Suspension Dynamic Optimization,

Corporate Author : IOWA UNIV IOWA CITY COLL OF ENGINEERING

Personal Author(s) : Haug,Edward J. ; Sohoni,Vikram N. ; Kim,Sang S. ; Seong,Hwal-G.

Report Date : JAN 1983

Pagination or Media Count : 29

Abstract : A vehicle suspension dynamic response design sensitivity analysis and optimization technique is presented and illustrated. Dynamic response measures included in the formulation, for use as the objective function or as constraints, include driver absorbed power, driver peak acceleration, and suspension element travel. Design parameters available to the designer include suspension spring and damper characteristics, suspension dimensions, and parameters in feedback control suspension subsystems. An adjoint variable technique that is generally applicable to such problems is employed and formulas for derivatives of dynamic response measures with respect to design parameters are derived. Numerical results with a five degree-of-freedom vehicle model demonstrate feasibility of the method and may serve as a guide for application to more complex models. (Author)

Descriptors :   *Ground vehicles, *Aerodynamic characteristics, *Dynamic response, Mobility, Optimization, Equations of motion, Lagrangian functions, Degrees of freedom, Computerized simulation, Road tests, Mathematical models, Displacement, Vibration, Drivers(Personnel), Perturbations, Algorithms

Distribution Statement : APPROVED FOR PUBLIC RELEASE