Jixie chuandong (May 2019)
Mode Transition Phenomenon of Herringbone Gear Power-split Transmission System
Abstract
The mode transition will bring about the dramatical changes of the dynamics characteristics of the herringbone gear power-split transmission system， so the mode transition phenomenon must be analyzed in the process of the transmission system dynamic design. The torsional vibration model and the free torsional vibration differential equations of the herringbone gear power-split transmission system are established， and the torsional vibration models are classified to two kinds of the coupled vibration mode and the branch gear vibration model by calculating the torsional vibration natural frequency and vibration mode. On this basis， the mode transition phenomenon of the transmission system is studied， and the criterion of mode transition phenomenon is determined， the mode transition phenomenon is not going to happen between two different types of modal vibration mode， and will happen between the same types. Finally， the accuracy of the proposed mode transition criterion is verified by an example.
