A study of random vibration characteristics of the quarter-car model

In this paper, the quarter-car model is used to study the response of the vehicle to profile imposed excitation with randomly varying traverse velocity and variable vehicle forward velocity. Root-mean-square response of the vehicle to white and colored noise velocity road inputs is analyzed. In the latter case, a recently developed subspace-based identification algorithm is used to design a linear shape filter with output spectrum matching the measured road spectrum. The linear shape filter is used in constructing charts that illustrate the trade-offs among the passenger comfort, the road-holding, and the suspension travel as functions of the vehicle forward velocity.

[1]  A. Hać,et al.  Adaptive Control of Vehicle Suspension , 1987 .

[2]  Kazimierz Sobczyk,et al.  Response to profile-imposed excitation with randomly varying traversal velocity , 1977 .

[3]  Dean Karnopp,et al.  Theoretical Limitations in Active Vehicle Suspensions , 1986 .

[4]  Gary J. Balas,et al.  Road adaptive active suspension design using linear parameter-varying gain-scheduling , 2002, IEEE Trans. Control. Syst. Technol..

[5]  J. D. Robson,et al.  Implications of isotropy in random surfaces , 1977 .

[6]  Y. Weitsman,et al.  A mixture theory for longitudinal waves in materials reinforced by rectangular fiber arrays , 1977 .

[7]  Davor Hrovat,et al.  An approach toward the optimal semi-active suspension , 1988 .

[8]  J. C. Snowdon.  Rubberlike materials, their internal damping and role in vibration isolation , 1965 .

[9]  D. Hrovat,et al.  Survey of Advanced Suspension Developments and Related Optimal Control Applications, , 1997, Autom..

[10]  Dean Karnopp,et al.  Active and semi-active vibration isolation , 1995 .

[11]  Hüseyin Akçay,et al.  Frequency domain subspace-based identification of discrete-time power spectra from nonuniformly spaced measurements , 2004, Autom..

[12]  S. G. Joshi,et al.  OPTIMUM DESIGN OF A PASSIVE SUSPENSION SYSTEM OF A VEHICLE SUBJECTED TO ACTUAL RANDOM ROAD EXCITATIONS , 1999 .

[13]  Dean Karnopp,et al.  Vibration Control Using Semi-Active Force Generators , 1974 .

[14]  J. D. Robson,et al.  The description of road surface roughness , 1973 .

[15]  A. G. Thompson,et al.  An Active Suspension with Optimal Linear State Feedback , 1976 .

[16]  Malcolm C. Smith.  ACHIEVABLE DYNAMIC RESPONSE FOR AUTOMOTIVE ACTIVE SUSPENSIONS. , 1995 .

[17]  Davorin David Hrovat.  Applications of Optimal Control to Advanced Automotive Suspension Design , 1993 .