Characterization of satellite components assembly for responsive space applications

David Mascarenas; David Macknelly; Josh Mullins; Heather Wiest; Gyuhae Park; Charles Farrar

doi:10.1117/12.881984

18 April 2011 Characterization of satellite components assembly for responsive space applications

David Mascarenas, David Macknelly, Josh Mullins, Heather Wiest, Gyuhae Park, Charles Farrar

Proceedings Volume 7984, Health Monitoring of Structural and Biological Systems 2011; 79842I (2011) https://doi.org/10.1117/12.881984
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

The rapid deployment of satellites is hindered by the need to flight-qualify their components and the resulting mechanical assembly. Conventional methods for qualification testing of satellite components are costly and time consuming. Furthermore, full-scale vehicles must be subjected to launch loads during testing. The focus of this research effort was to assess the performance of Structural Health Monitoring (SHM) techniques to replace the high-cost qualification procedure and to localize faults introduced by improper assembly. SHM techniques were applied on a small-scale structure representative of a responsive satellite. The test structure consisted of an extruded aluminum spaceframe covered with aluminum shear plates, which was assembled using bolted joints. Multiple piezoelectric patches were bonded to the test structure and acted as combined actuators and sensors. Piezoelectric Active-sensing based wave propagation and frequency response function techniques were used in conjunction with finite element modeling to capture the dynamic properties of the test structure. Areas improperly assembled were identified and localized. This effort primarily focused on determining whether or not bolted joints on the structure were properly tightened.

Citation Download Citation

David Mascarenas, David Macknelly, Josh Mullins, Heather Wiest, Gyuhae Park, and Charles Farrar "Characterization of satellite components assembly for responsive space applications", Proc. SPIE 7984, Health Monitoring of Structural and Biological Systems 2011, 79842I (18 April 2011); https://doi.org/10.1117/12.881984

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