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S17 O Método dos Elementos de Contorno em Engenharia |
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Title:
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FREE VIBRATION OF AXISIMMETRIC VISCOELASTIC BODIES BY THE BOUNDARY ELEMENT METHOD
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Summary :
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ABSTRACT. A BOUNDARY ELEMENT FORMULATION TO ANALYZE THE DYNAMIC RESPONSE OF ELASTIC AXISYMMETRIC BODIES IS PRESENTED. IN THE FORMULATION THE 3D KERNELS WERE TRANSFORMED INTO AXISYMMETRIC KERNELS BY A COORDINATE CHANGE AND AN INTEGRATION OVER THE AZIMUTHAL DIRECTION. THE DYNAMIC SINGULAR KERNELS ARE REGULARIZED SUBTRACTING THE CORRESPONDING STATIC KERNELS. THE STATIC SINGULAR KERNELS ARE SOLVED BY THE RIGID BODY ARGUMENT. THE BE IMPLEMENTATION IS VALIDATED BY DETERMINING THE RESPONSE OF A CYLINDER WITH KNOWN MODAL DATA, I.E. EIGENFREQUENCIES AND EIGENMODES. THE METHODOLOGY IS ALSO APPLIED TO ANALYZE THE RESPONSE OF AN ACOUSTIC HORN.
KEY WORDS: BOUNDARY ELEMENT METHODS, AXISYMMETRIC BODIES, VIBRATION.
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Author :
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Carrion, Ronaldo 0
Mesquita Neto, Euclides de 0
Muhlen, Sérgio 0
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Paper View :
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