Abstract
This paper describes a vibration analysis of an automobile engine by the eigensolver, called CGCGPI method, of ADVENTURE Cluster. The analysis is performed, as a pioneering work on NVH problem, for a motorcar's 4-cylinder gasoline engine, which consists of three components : an engine block, a clutch housing and a gear case. First, the eigenvalue analysis, then substructure synthesis analysis finally, frequency response analysis is conducted.