Title :
H2, mixed H2/H∞ and H2 /L1 optimally tuned passive isolators and absorbers
Author :
Haddad, Wassim M. ; Razavi, Ali
Author_Institution :
Sch. of Aerosp. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
In many practical applications unbalanced rotating machinery cause vibrations that transmit large oscillatory forces to the system foundation. Using ad hoc optimization schemes tuned isolators and absorbers have traditionally been designed to suppress system vibration levels by attempting to minimize the peak frequency response of the force/displacement transmissibility system transfer function. In this paper we formulate the classical isolator and absorber vibration suppression problems in terms of modern system theoretic criteria involving H2 (shock response), mixed H2/H∞ (peak frequency response), and mixed H 2/L1 (worst-case amplitude response) performance measures
Keywords :
H∞ control; damping; minimisation; transfer functions; vibration control; H2 performance measure; force/displacement transmissibility system transfer function; mixed H2/H∞ performance measure; mixed H2/L1 performance measure; optimally tuned passive absorbers; optimally tuned passive isolators; optimization; oscillatory forces; peak frequency response minimization; peak frequency response performance measure; shock response performance measure; system theoretic criteria; unbalanced rotating machinery; vibration suppression; vibrations; worst-case amplitude response performance measure; Design optimization; Electric shock; Entropy; Frequency measurement; Frequency response; Hydrogen; Isolation technology; Isolators; Transfer functions; Vibration measurement;
Conference_Titel :
American Control Conference, 1997. Proceedings of the 1997
Conference_Location :
Albuquerque, NM
Print_ISBN :
0-7803-3832-4
DOI :
10.1109/ACC.1997.612033
