A planar comparison of actuators for vibration control of flexible structuresThe methods and results of an analytical study comparing the effectiveness of four actuators in damping the vibrations of a planar clamped-free beam are presented. The actuators studied are two inertia-type actuators, the proof mass and reaction wheel, and two variable geometry trusses, the planar truss and the planar truss proof mass (a combination variable geometry truss/inertia-type actuator). Actuator parameters used in the models were chosen based on the results of a parametric study. A full-state, LQR optimal feedback control law was used for control in each system. Numerical simulations of each beam/actuator system were performed in response to initial condition inputs. These simulations provided information such as time response of the closed-loop system and damping provided to the beam. This information can be used to determine the 'best' actuator for a given purpose.
Document ID
19890043436
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Clark, William W. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Robertshaw, Harry H. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Warrington, Thomas J. (Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 89-1330
Meeting Information
Meeting: AIAA, ASME, ASCE, AHS, and ASC, Structures, Structural Dynamics and Materials Conference