Logo image
Formulation of the damped SBFEM within a convected coordinate system
Conference paper

Formulation of the damped SBFEM within a convected coordinate system

D.J. Scales, A.J. Deeks and H. Hao
Futures in Mechanics of Structures and Materials - Proceedings of the 20th Australasian Conference on the Mechanics of Structures and Materials, ACMSM20, pp.115-121
CRC Press
20th Australasian Conference on the Mechanics of Structures and Materials(ACMSM20) (Toowoomba, QLD, 02/12/2008–05/12/2008)
2008

Abstract

The scaled boundary finite-element method is a novel semi-analytical technique and has been applied to a wide variety of computational problems with great success. This paper deals with the solution of problems involving moving loads through the computational domain at a constant velocity. The problem has been formulated previously with a moving coordinate system following the applied load. As the reference frame is moving with the applied load the problem is reduced to a pseudo-static case which can be solved using conventional techniques. In the original formulation damping was ignored for simplicity, and as a result symmetric solutions were obtained. In this paper damping is introduced into the formulation, including the introduction of mode shapes compatible with the boundary condition at infinity. This results in a non-homogeneous set of equations requiring a Frobenius solution for the resulting set of differential equations.

Details

Metrics

48 Record Views
Logo image