A symmetric Galerkin BEM for harmonic problems and multiconnected bodies
Por:
Pérez-Gavilán J.J., Aliabadi M.H.
Publicada:
1 ene 2001
Resumen:
A steady state harmonic solution of Navier equations of motion is presented using the symmetric Galerkin Boundary Element Method, which leads to a symmetric system of equations. For the integration, a two-step regularisation process is proposed to deal with the singularities of the involved kernels. It is also shown that the standard application of the symmetric Galerkin methodology for multiply connected bodies leads to the deterioration of the conditioning of the system for low frequencies. Two examples are presented comparing the solutions obtained with the proposed formulation with those obtained with the standard collocation method. A third example is presented to illustrate the behaviour of a simple multi-connected body.
Filiaciones:
Pérez-Gavilán J.J.:
University of London, Department of Engineering, Queen Mary College, Mile End, London E14 NS, United Kingdom
Aliabadi M.H.:
University of London, Department of Engineering, Queen Mary College, Mile End, London E14 NS, United Kingdom
|