Design of Robust Vibration Controller for a Smart Panel Using Finite Element Model

摘要: This paper presents a model reduction method and uncertainty modeling for the design of low-order H∞ robust controller suppression smart panel vibration. A with collocated piezoceramic actuators sensors is modeled using solid, transition, shell finite elements, then size reduced in state space domain. designed not only to minimize vibration excited by applied uniform acoustic pressure, but also be reliable real world applications. introduces idea Modal Hankel Singular values (MHSV) reduce element minimum error. MHSV measures balanced controllability observability each resonance mode deselect insignificant modes. State realistic control conditions are formulated terms variables. These variables include performances, knowledge frequencies structure, damping ratio, static stiffness, unmodeled high modes, etc. The simplified combined as an integrated model, implemented theory parameterization. easy implement analog circuit provide low cost solution variety applications where may limiting factor.