Abstract
The interaction of two different transmission systems was investigated using the substructure methodology based on the Frequency Response Functions (FRFs). The coupled approach has been simulated to investigate the studied system dynamic behavior. The formulation of the lumped-parameter model and the resolution of the eigenvalue problem are determined. The analysis of two subsystems are determined separately and their FRF are obtained. The response of the global system is based on the dynamic characteristics of each subsystem. A comparison of the coupling and not coupling subsystem FRFs is analyzed. Two models of coupling were investigated. A comparison of the FRFs between the response of a rigid and a joined system is discussed. The determination of the FRF of the flexible coupling system is very important in order to avoid the effect of coupling FRFs. In fact, the contribution of a flexible coupling on the simulation of different transmission systems obtained by the sub-structuring technique was discussed.Moreover, two value of helical angle was introduced for the studied parallel gear stage. The identification of modes that are excited by the helical gear is solved. Finally, the impact of helix angle on the simulation properties such as modes shapes and FRFs is studied.
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