Piezoelectric polymer-based isolation mount for articulated pointing systems on large flexible spacecraftWhen a pointing system is attached to a large flexible body that is subject to continuous excitation, a mechanical isolator becomes a key element in achieving high performance. An active softmount based on the piezoelectric polymer poly (vinylidene fluoride) is considered here for use in a precision pointing system for Space Station. A finite element model of the softmount is developed and added to simple Space Station and payload models for performance analysis. Both linear frequency domain and nonlinear time domain simulations are carried out in order to demonstrate the wideband disturbance rejection capabilities of the design. Nonlinear geometric effects of large nodal deflections are also considered.
Document ID
19890025291
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sirlin, Samuel W. (California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)