FIELD: vibration testing.
SUBSTANCE: invention can be used in vibration testing of both equipment, components, and the spacecraft as a whole to improve the reliability and quality of vibration testing while saving testing time. Based on the results of verified finite element modeling and low-level tests at the interface of the equipment, taking into account the transfer coefficients, the loading of the equipment at its attachment points is estimated using force sensors, compared with the allowable interface force factors obtained by calculation, and if the allowable levels are exceeded, successively carry out the adjustment of the input action in the direction of loading according to the formula. Then, vibration tests of the equipment are carried out in the generated modes in each of the three mutually perpendicular directions.
EFFECT: possibility of carrying out tests with higher quality and eliminating excessive loading of the test object.
1 cl, 5 dwg
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