SPACECRAFT TESTING METHOD Russian patent published in 2001 - IPC

FIELD: ground tests of spacecraft equipment for mechanical loads. SUBSTANCE: mock-up is dynamically loaded by methods of wobbling frequency, wide-band random vibration and shock spectrum. Test are conducted in succession for each type of loading. Loads change in amplitude discretely from minimum levels to levels obtained during full-scale operation of article. Amplitude-frequency characteristics of testing mode are calculated by minimization of some quadratic functional, provided permissible magnitudes of loads at check points of mock-up re not exceeded in each frequency band. EFFECT: reduced testing time and number of equipment items at improved quality of representation of real action of article. 3 tbl