On the Theory of Orthogonal Engine Mount System and Its Application to Motorcycles

By orthogonalizing the primary inertia moment vector produced by an engine with many engine vectors, a new engine mounting method called “the orthogonal engine mount system” was designed.

This paper explains its theoretical background. In addition, a motorcycle with a two-cylinder engine incorporating this system was analyzed by means of modal analysis and building block approach techniques to determine the effectiveness of the orthogonal engine mount system.