METHOD OF LOAD TESTING IN CASE OF TRANSPORTAION BY AIR

摘要

FIELD: test engineering.;SUBSTANCE: method consists in successive loading of dynamic model with effects, formed as results of natural measurements for each point of control of transported cargo from pseudo source procedure with duration equal to total duration of all measurements, then separating it into stationary and non-stationary constituents: vibratory in form of spectrum density power and shock ones in form of shock spectrum accelerations. Vibratory and shock tests are performed in modes, set on maximum values of spectrum density power and shock spectrum of accelerations for separated procedures. At that maximal value of spectrum density power of vibro-accelerations is obtained either by method of envelope function on data about all cases of transportation by air for all preliminary determined amplitude ranges, or by shock spectrum of accelerations from accelerative impulses, different from envelope spectrum at value less, than error of evaluation of shock spectrum of accelerations.;EFFECT: upgraded validity of test procedures.;1 dwg