Smart Structures for Vibration Suppression of Optical Surfaces
Abstract
Our objective addresses the mechanics models needed and the suppression techniques offered by smart materials as applied to optical systems mounted on satellites. The objectives of this research effort are to model the dynamics and control of flexible optical systems for both vibration suppression and shape control using smart materials as the actuation component and sensing component. The specific objective was to model a generic system, select suitable actuation, sensing and control elements, develop a system model, and verify the results against a proof-of-concept experiment. The results of this three-year grant can be summarized as follows: 1) Actuator Material Selection; 2) Ground Testing of an Inflated Toms; Finite Element Modeling; 3) Mechanics Modeling; 4) Comparison of Inflated Torus Models and Tests; and 5) Control Analysis: a) Theoretical Designs; b) Experimental Implementations and Verifications. All of the results developed here center around a thin membrane material (Kapton) formed into an inflated torus. A torus forms one of the basic elements of the perceived inflated satellite reflector system. The research results have focused on generic results applied to the specific case of an inflated torus. The inflated torus was chosen because it is a basic element being considered by AFRL.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 25, 2002
- Accession Number
- ADA408578
Entities
People
- Daniel J. Inman
Organizations
- Virginia Tech