Test and determination method for cable rigidity in separate space vehicle compartment
A measurement method and technology for spacecraft, which are applied in the testing of machinery/structural components, instruments, measuring devices, etc., can solve problems such as the inability to accurately measure the stiffness of cables in the cabin, cable selection and layout optimization, etc.
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[0030] The method uses a high-bandwidth and high-precision voice coil motor to drive the platform cabin to simulate micro-vibration, and installs high-precision and high-bandwidth measuring instruments such as accelerometers and fiber optic gyroscopes in the load cabin to accurately measure the vibration response of the load cabin. Adjust the output of the voice coil motor to achieve sweep frequency output to determine the resonant frequency of the system. Theoretical derivation determines the system transfer function, analyzes the functional relationship between the cable stiffness and the fundamental frequency of the system, and then determines the cable stiffness.
[0031] Combine below figure 1 , figure 2 and examples to illustrate specific embodiments of the present invention. The content includes 4 parts, namely: micro-vibration simulation of platform cabin, system fundamental frequency measurement, cable stiffness calculation, and determination of optimal cable type ...
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