"LOGOS" SOFTWARE PACKAGE: A TECHNIQUE FOR THE SIMULATION OF A STRUCTURE RESPONSE UNDER THE EFFECT OF BROAD-BAND RANDOM VIBRATION
A. Yu. Eremenko, S. S. Kosarim
VANT. Ser.: Mat. Mod. Fiz. Proc 2020. Вып.2. С. 71-85.
The paper discusses the specific features of the technique for the simulation of a structure response under the effect of broad-band random vibration implemented in the LOGOS software package. The derivation of relations for the calculation of the spectral response of a structure is described in details. The description of two implemented methods for the structure response integration with respect to frequency to obtain root-mean-square deviations of resultant quantity values is given. The accuracy of the integration methods was compared by the example of the problem simulating the response to vibration of a container during its transportation. Conclusions on the applicability of the analyzed methods were made basing on the comparison results. Keywords: broad-band random vibration, random processes, normal distribution, spectral power density, modal analysis, a structure response under the effect of broad-band random vibration.
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