THE NEW TRIAXIAL SHOCK AND VIBRATION TEST SYSTEM AT HILL AIR-FORCE BASE

Authors
Citation
M. Chen et Dr. Wilson, THE NEW TRIAXIAL SHOCK AND VIBRATION TEST SYSTEM AT HILL AIR-FORCE BASE, Journal of the IEST, 41(2), 1998, pp. 27-32
Citations number
6
Categorie Soggetti
Environmental Sciences","Instument & Instrumentation","Engineering, Environmental
Journal title
ISSN journal
10984321
Volume
41
Issue
2
Year of publication
1998
Pages
27 - 32
Database
ISI
SICI code
1098-4321(1998)41:2<27:TNTSAV>2.0.ZU;2-K
Abstract
To achieve large-missile guidance qualification, modification, and rel iability tests and analysis, the Hill Air Force Base Survivability & V ulnerability Integration Center (SVIC) has installed a six-degree-of-f reedom shock and vibration system. Designed and developed by Wyle Labo ratories Inc., this system is driven in the frequency range of 5 to 20 00 Hz by eight electrodynamics shakers, two in each horizontal axis an d four in the vertical axis. The major design concern is the coupling of the shakers through a rigid table due to kinetic and dynamic effect s and the behavior of the structure. This has made the control task ve ry challenging. A method was developed that coordinates the drive sign als to compensate for cross-coupling effects. Based upon tests to date , the system is an effective, reliable, and capable test platform. In this paper, we discuss the design objectives, provide a brief descript ion of the hardware, and elaborate on the high-speed, digital control system driving the eight electrodynamics shakers. A brief description of the test results is provided.