Guidance preconditioning by an impulse sequence for robust residual vibration suppression

Article type: Research Article

Authors: Antoniadis, I.

Affiliations: Machine Design and Control Systems Section, Department of Mechanical Engineering, National Technical University of Athens, P.O. Box 64078, Athens 15710, Greece E‐mail: antogian@ central.ntua.gr

Abstract: In order to suppress residual vibrations, a general method is presented for preconditioning any guidance function prior to its application to a dynamic system, by convolving it with a sequence of impulses. The approach includes first the development of the necessary design specifications for the impulse sequence, so that the robustness properties cover the widest possible variation of the system natural frequencies. Three solution methods are proposed then, with special emphasis in the achievement of the minimum possible duration time of the impulse sequence. Numerical experiments verify the effectiveness of the robustness, not only with respect to variations of the natural frequency, but also with respect to variations of a range of other linear and non‐linear variables.

Keywords: Vibration suppression, vibration control, residual vibrations, guidance

Journal: Shock and Vibration, vol. 6, no. 3, pp. 133-145, 1999