The Multi-objective Optimization and the Simulation of the Joint-bearing Flexible Laminated Membrane Coupling

摘要

The coupling which has the automatic alignment function is an important subject in the structural designing of the big-scale rotor shaft system and the studies of dynamic characteristics. Up to now, the studies in this field in China and abroad mostly take the form of research paper, and the designing which has a bigger compensating function and a prospect of application occupies a small amount, and one of the major limitations is the angle compensating ability of coupling. Aimed to analysis about the main function, assistant function and additional function of the coupling, this paper introduces the centripetal joint bearings to flexible laminated membrane coupling and designs a new type structure of flexible laminated membrane coupling. For short "joint coupling",the paper analyses the force of the joint coupling operated by joint bearing, corresponding mechanics model, and the calculating formula of the static and dynamic stress of the coupling. Subsequently, regarding the two stresses as objective functions, the multi-objective mathematics model is established. The model being optimized by the software of Matlab, drew the conclusion that the capability of angular compensation possessed by this kind of coupling ranges from 3°to 6°. This method overcomes the shortcoming of conventional laminated membrane coupling that its angular compensation capability only ranges from 1°to 1.5°. After simulation by the software of Pro/Engineer, the joint coupling runs well. The conclusions stated above provide sound academic foundations for designing laminated membrane coupling of this sort and popularizing the application of it.