Test Method onboard equipment spacecraft vibration exposure

摘要

FIELD: test equipment.;SUBSTANCE: when determining free frequencies of on-board equipment, Q-factor at each resonant frequency is additionally determined and response prediction is made; besides, when allowable acceleration amplitude values are exceeded to the on-board equipment there made is correction of the specified standard action in the area of resonant frequencies, and width of change of amplitude-frequency range is determined as per the formula; loading amplitude is corrected considering the amplitude of corrected standard action at resonant frequency; besides, inclination of decrease/increase in the area of resonances of the corrected standard action is accepted from the range of 20-30 dB/oct, which excludes the occurrence of transient processes during tests; after that, tests are performed in the corrected mode.;EFFECT: excluding increased loads on the equipment when performing the tests.;3 dwg