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.