BEACON eSpace at Jet Propulsion Laboratory >
JPL Technical Report Server >
JPL TRS 1992+ >
Please use this identifier to cite or link to this item:
|Title: ||Actuator grouping optimization on flexible space reflectors|
|Authors: ||Hill, Jeffrey R.|
Wang, K. W.
|Keywords: ||shape control|
en masse elimination (EME) algorithm
|Issue Date: ||11-Mar-2011 |
|Publisher: ||Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2011|
|Citation: ||2011 Smart Structures/NDE, San Diego, CA, March 11-15, 2011|
|Abstract: ||With the rapid advances in deployable membrane and mesh antenna technologies, the feasibility of developing large, lightweight reflectors has greatly improved. In order to achieve the required surface accuracy, precision surface control is needed on these lightweight reflectors. For this study, an analytical model is shown which combines a flexible Kapton reflector with Polyvinylidene fluoride (PVDF) actuators for surface control. Surface errors are introduced that are similar to real world scenarios, and a least squares control algorithm is developed for surface control. Experimental results on a 2.4 meter reflector show that while the analytical reflector model is generally correct, due to idiosyncrasies in the reflector it cannot be used for online control. A new method called the En Mass Elimination algorithm is used to determine the optimal grouping of actuators when the number of actuators in the system exceeds the number of power supplies available.|
|Appears in Collections:||JPL TRS 1992+|
Items in DSpace are protected by copyright, but are furnished with U.S. government purpose use rights.