Share Email Print
cover

Proceedings Paper

Sensor/actuator optimal design for active vibration control of shell structure
Author(s): Seung Jo Kim; Joon Seok Hwang; Jiwon Mok
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, a method based on finite element technique is developed for the design of sensor/actuator system of the active vibration control of shell structure. To prevent the adverse effect of spillover, distributed modal sensor/actuator system is established using PVDF film. Although shell structure is three-dimensional structure, the PVDF sensor/actuator system can be treated as two-dimensional. The electrode patterns and lamination angle of PVDF sensor/actuator are optimized to design the modal sensor/actuator system. Finite element programs are developed to consider curved structures having PVDF modal sensor/actuator. The nine-node shell element with five nodal degree of freedoms is used for finite element discretization. Electrode patterns and lamination angles of PVDF sensor/actuator are optimized using genetic algorithm. Sensor is designed to minimize the observation spillover, and actuator is designed to minimize the system energy of the control modes under a given initial condition. Modal sensor/actuator for the first and second modes of singly curved cantilevered shell structure are designed using above mentioned methods. For the demonstration, numerical simulation of the closed loop system is performed. Discrete LQG method is used as a control law.

Paper Details

Date Published: 22 June 2000
PDF: 9 pages
Proc. SPIE 3985, Smart Structures and Materials 2000: Smart Structures and Integrated Systems, (22 June 2000); doi: 10.1117/12.388874
Show Author Affiliations
Seung Jo Kim, Seoul National Univ. (South Korea)
Joon Seok Hwang, Seoul National Univ. (South Korea)
Jiwon Mok, Seoul National Univ. (South Korea)


Published in SPIE Proceedings Vol. 3985:
Smart Structures and Materials 2000: Smart Structures and Integrated Systems
Norman M. Wereley, Editor(s)

© SPIE. Terms of Use
Back to Top