遊星歯車式減速装置を有するギアードディーゼルのねじり振動

概要

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Recently, the geared diesel plant has been gaining its position in the field of marine propulsion system because of its energy saving characteristics. Among several kinds of reduction gear, the epicyclic gear type is fairly compact and light and has been increasing its share of sales. Our company has been producing the IMT type epicyclic reduction gear, of which the basic technical patent is held by Toyo Seimitsu Zoki. This type of reduction gear is equipped with special“equalizer pins” to support the ring gear. The equalizer pin is flexible against the transmitted torque and because of this flexibility, the torsional vibration system must be specially analyzed so that the flexibility is fully represented in the calculation. In this paper, the theoretical analysis of such a system is given, then the calculation and measurement results are also shown on one particular case as an example.