Practical Complete Modal Space and Its Applications

摘要

The modal expansion method has been used in many important subjects, such as dynamic response, substructural modal synthesis, calculation of eigenvector derivatives, model correction, and reduction of dynamic models. In using the modal expansion technique, there exists numerical error as a result of truncation of modes, and the precision of the results sometimes is poor. To reduce the error of truncated modes, the development of a practical complete modal space (PCMS) method is necessary and strongly recommended.