METHOD FOR EXTRACTION OF IMPACT PROCESSES FROM DYNAMIC LOADS Russian patent published in 2020 - IPC G01M7/00 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and can be used to measure impact loads on aircraft. In method, including measurement of vibration loads in locations of onboard equipment of aircraft using vibration transducers, recording of measurement information on a recorder, recorded information is reproduced in the form of centering relative to mathematical expectation of ordinates of vibration acceleration with reception of record on time of this measurement information during measurement of vibration loads. Sharply allocated levels of ordinates of vibration acceleration of measured loads are detected, time interval of action of each selected level between points of intersection of selected pulse with time axis of recording is determined. Determining the pulse speed in the form of a product of the numerical value of the sharply emphasized level of the acceleration of the vibration acceleration by the value of the time interval, comparing the obtained pulse speed value with the predetermined permissible value of the pulse speed value for the aircraft structure and deciding on the impact of the sharply allocated level of the measured process to the impact, if the pulse speed is less than the set limit, and on rejection of the released level, if the pulse speed is more than the set limit. At that, permissible limits of impulse pulse speed for aircraft structure are determined proceeding from standard requirements to load in nodes of equipment fixation to aircraft structure during tests of impact effects and characteristics of reference impact actions.

EFFECT: technical result consists in improvement of reliability of extraction of impact processes from dynamic loads, measured in locations of aircraft onboard equipment, registered in time, and improvement of accuracy of determination of parameters of vibration loads.

1 cl, 3 dwg