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Energy transfer from low to high frequency modes due to repeated impacts
Author(s) -
Belyaev A. K.
Publication year - 2000
Publication title -
zamm ‐ journal of applied mathematics and mechanics / zeitschrift für angewandte mathematik und mechanik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.449
H-Index - 51
eISSN - 1521-4001
pISSN - 0044-2267
DOI - 10.1002/zamm.20000801407
Subject(s) - equipartition theorem , vibration , energy transfer , energy exchange , thermal , mechanics , energy (signal processing) , mechanical energy , thermal energy , bar (unit) , degrees of freedom (physics and chemistry) , physics , mechanism (biology) , mechanical system , thermal transfer , classical mechanics , materials science , acoustics , mechanical engineering , engineering , atomic physics , thermodynamics , quantum mechanics , magnetic field , power (physics) , atmospheric sciences , meteorology , inkwell , composite material
Numerical simulation of energy exchange between the vibration modes in an elastic bar colliding with rigid walls is performed. After a large number of impacts the vibration energy is observed to be equally distributed over the degrees of freedom. Since the energy equipartition is typical for the thermal motion, the present study is useful for understanding the mechanism of transfer of mechanical energy into thermal one. The concept of the impact oscillator is generalised to mechanical systems with distributed parameters.