バランス測定機の設計変更のための検討

概要

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This paper deals with development of balance measurement equipment for medium size rotor. Aprototype of the balance measurement system was developed by Tokai Techno Co. However, it couldn'trealize the satisfied measurement accuracy on unbalance quantity and its position, because it has severalproblems in the system structure. In the study in last year, it was revealed that the operational frequency isclose to the natural frequency of the stiffness plate for the bending mode and the resonance between thesystem consisted of the stiffness plate and the main shift, and the operation motion makes large influence tothe unbalance measurement. In this study, the dynamic characteristics of the balance measurement equipmentwas estimated by operation experiment and simulation by FEM analysis. Change of the shape or mass on themeasurement object gives to the dynamic characteristics, were estimated by the simulation of FEM model.The influence of damping of spring plate was also estimated and it became obvious that the combination ofchanges on the system parameters could make the balance measurement system higher performance machine.
2011-01-31