Engineering Transactions, 63, 1, pp. 93–108, 2015

Vibrations of Plate Strips with Internal Periodic Structure

Jakub MARCZAK
Łódź University of Technology
Poland

Jarosław JĘDRYSIAK
Łódź University of Technology
Poland

In this note vibrations of thin periodic plate strips with periodically distributed systems of three concentrated masses are analysed. Results of the non-asymptotic tolerance model are compared to those by the exact discrete model. In an example, these models are used to calculate lower and higher frequencies of the travelling wave related to the internal periodic structure.
Keywords: periodic plate strips; tolerance averaging technique; travelling wave.
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