TY - JOUR
AU - Koporulina, M.
AB - ERRORS IN THE REPRODUCTION OF VIBRATIONAL LOADS BASED ON THEIR SPECTRAL DENSITY UDC 621.031 E. T. Grigor'ev, V. I, Gronskii, and M. G. Koporulina Lately, statements concerning the organization of tests on vibration stability for the reproduction of a random stationary excitation with given spectral density have been more frequently expressed. These tendencies were reflected in norms, standards, and guiding technical data of various departments and enterprises. The excitation is reproduced using a system of narrow-band filters [2, 4]. A similar filter system also serves for the analysis of the spectrum of the excitation obtained. The accuracy of the reproduction of the random loads by the indicated method depends on the param- eters of the excitation apparatus and the analyzing apparatus. For electrodynamic and electrohydraulic force exciters, the excitation apparatus is constructed either on one-third octave filters or on filters with constant pass-band width [2]. For a one-third octave band with limit frequencies w k and CCk+ l, the follow- ing relations are valid: ~ = 2 ~ ~ 1.26; r --~k--.~ 0.206. (-0 h ((}h+l As a result of this, the relative values of the bands of one-third octave filters (with respect to the maximum threshold frequency), if 
TI - Errors in the reproduction of vibrational loads based on their spectral density
JO - International Applied Mechanics
DO - 10.1007/BF00882969
DA - 2004-12-10
UR - https://www.deepdyve.com/lp/springer-journals/errors-in-the-reproduction-of-vibrational-loads-based-on-their-4o1OuFM1Za
SP - 675
EP - 678
VL - 10
IS - 6
DP - DeepDyve
ER -