130859717

130859717



Weronika DZIKOWSKA

determination of the two properties. Studies of the other two types of samples will be used to verify the assumptions.

4. CONCLUSIONS

The obtained mathematical model of the sample is linear. At the present stage of research it is difficult to evaluate the degree of its real nonlinearity. It seems that at first should be tested the simplest type of samples (consisting only of specific part of mats - porous, without skin) resultant from decomposition of the basie sample. For the model of this sample defined analytically it will be possible to determine experimentally the parameters bx and /e, for different angular freąuency co defined in the standard. Differences from the constants, parameters bx, and kx will be a measure of the nonlinearity of the model (its inaccuracy) and allow evaluation error during test.

In the next steps of research should be verified the correctness of the assumptions madę in the formulas (10) and (11). In the studies will be used samples with different cross sections and heights. On them will be applied the force with constant circular freąuency.

The model presented in this paper is the first linear approximation, but allows understanding of the futurę the research program and familiarization with the essence of the problem.

LITERATURA

[1]    DZIKOWSKA W.. ŻÓRAWSKI D., PESZYŃSKI K.: Modelling and Initial Tests of the Dynamie Properties of Vibroinsulation Mats. 20lh International Conference Engineering Mechanics 2014, Svratka - Czech Republic. 152-155.

[2]    KACZOREK T. i in.: Podstawy teorii sterowania. WNT, Warszawa 2005.

[3]    OGATA K.: Modem Control Engineering Fifth Edition. Prentice Hall. New Jersey 2010.

[4]    PESZYŃSKI K.. SIEMIENIAKO F.: Sterowanie procesów, podstawy, przykłady. Wyd. Uczeln. Akademii Techniczno-Rolniczej. Bydgoszcz 2002.

ANALIZA MODELU MATEMATYCZNEGO PRÓBKI MATY WIBROIZOLACYJNEJ

Streszczenie: W pracy zaprezentowano kolejny etap rozwoju modelu matematycznego poliuretanowej maty wibroizolacyjnej. Zaproponowano wprowadzenie nowych parametrów chrakteryzujących własności maty. Podjęto próbę analizy modelu ze względu na jego własności dynamiczne wynikające z określenia trans-mitancji częstotliwościowej. W podsumowaniu opisano metodykę badań koniecznych do ilościowego określenia stałych materiałowych modelu.

Słowa kluczowe: mata wibroizolacyjna. moduł stratności. moduł zachowawczy, model matematyczny



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