Comparison between the change of basis with the projection to subspace in a derivation of reduced-order model.

Abstract

This paper propose the method that obtain a reduced-order model without exchange of the base vectors. The results are as follows: 1) The proposed method will increase sequentially correction terms from the linear eigen mode using samples of the solution space. 2) Proportional to the number of correction terms, the reduced-order model will have a good accuracy for the motion with a larger amplitude.