METHOD FOR TESTING TOOLS AND EQUIPMENT FOR HIGH-INTENSITY SHOCKS Russian patent published in 2023 - IPC G01M7/00 

FIELD: aviation; rocket and space technology.

SUBSTANCE: methods for testing tools and equipment for high-intensity shock. Invention can be used for testing tools and equipment in aviation and rocket and space technology. The method consists in creating a shock effect in form of non-stationary vibration, registering accelerations and obtaining the same shock spectrum of accelerations at the attachment points of the test object for positive and negative values of the shock spectrum of accelerations. It differs from the background methods in that prior to the start of impact tests, tests are carried out to determine the resonant frequencies of the tooling with a dynamic layout of the test object along three mutually perpendicular axes, the results of which preliminarily determine the number and installation locations of pyro devices on the tooling at points that provide maximum response at the points of loading control dynamic layout at frequencies corresponding to the transition frequency of the given shock acceleration spectrum. Then, shock tests are carried out by simultaneous detonation of pyrotechnic devices, accelerations are recorded at the control points of the dynamic layout in form of non-stationary vibration, total, positive and negative shock acceleration spectra are obtained. Next, the resulting acceleration shock spectra are compared with the required acceleration shock spectra at each control point of the dynamic layout in three mutually perpendicular directions, and if they differ by an amount greater than the allowable error, the number, power and installation locations of the pyro devices are specified. After that, impact tests are repeated, and the required impact action in form of impact acceleration spectra is formed simultaneously at the points of control of loading of the dynamic layout along three mutually perpendicular axes.

EFFECT: creating impacts that correspond to the actual operating conditions of the equipment and ensure, during testing, simultaneous loading of the test object along three mutually perpendicular axes in two opposite directions (positive and negative) at various attachment points of the test object in order to reduce the number of impacts on the test object.

1 cl, 8 dwg