A reduction method for boundary element reanalysis Original Research Article

This paper is concerned with reanalysis for boundary element systems. An efficient and accurate reduction method is proposed for reanalyzing such systems. The new method has several merits. In particular, the reduced system has been uncoupled by a Gram–Schmidt orthonormalization procedure. Also, a computation-inexpensive convergence criterion is proposed for the automatic determination of the number of basis vectors required to approximate the solution within a specified level of accuracy. Several example problems are illustrated to verify the accuracy and efficiency of the proposed reduction method.