Static/dynamic characteristics of a tri-branching gear system with multiple outputs

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Journal of Vibration and Shock ›› 2022, Vol. 41 ›› Issue (16) : 73-78.

SONG Wen1，YANG Chengshi1，YAN Hai1，CHEN Zhiwei2，LI Zhimin2

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Abstract

Taking the power tri-branching gear system of torpedo turbine reducer as the object, the static and dynamic characteristics of the system with multiple outputs were analyzed. By using the generalized finite element method, the system was divided into shaft element, meshing element and bearing element, and then the overall dynamic model of the system considering the flexibility of each component was established. The influence of different parameters on the static meshing force of each gear pair was analyzed, and the dynamic responses of the system were calculated. The results showed that when the auxiliary load is added to a branch, the loads of the split / confluence stage will become uneven. Increasing the rigidity of the connecting shafts or bearings between two stages will increase the meshing force of the corresponding branch. The installation phase of the auxiliary gear will have a periodic effect on the meshing force of all branches. After adding the auxiliary output, the vibration of each branch for split and confluence stage is affected differently. The results will provide effective references for the static and dynamic design of multi-load power branching gear system.
Key words：Gear; power tri-branching; static analysis; dynamic analysis; multiple outputs

Key words

Gear / power tri-branching / static analysis / dynamic analysis / multiple outputs

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SONG Wen1，YANG Chengshi1，YAN Hai1，CHEN Zhiwei2，LI Zhimin2. Static/dynamic characteristics of a tri-branching gear system with multiple outputs[J]. Journal of Vibration and Shock, 2022, 41(16): 73-78

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