scope:

To determine the ability of components and equipment to withstand specified severities of random vibration. This random vibratin test is applicable to components and equipments which may in service be subjected to conditions involving vibration of a stochastic nature. The purpose of the test is to determine mechanical weakness and/or degradation in specified performance and to use this information in conjunction with the relevant specification to decide whether a specimen is acceptable or not. During the application of the environmental stress (conditioning) specified by this test, the specimen is subjected to random vibrations of a given level within a wide frequency band. Due to complex mechanical reactions from the specimen and its fixtures, this test requires particular care in its preparation and performance, and in the confirmation of the specified requirements.