支持剛性の異方性とオープンクラックを有するロータ系の伝達関数モデルの実験的検証

抄録

This paper proposes a transfer function of rotating shaft system considering both an open crack and anisotropy in bearing support stiffness. Due to the interaction of anisotropy in support bearing and rotor crack, vibration component is generated without limitation. In this paper, a transfer function focusing on five vibration components is derived. Then, the experimental system of the rotating shaft supported by the bearing with anisotropic support stiffness is developed, and the harmonic excitation was added to this system by active magnetic bearing. Several harmonic excitation experiments were carried out. These experimental results clarified the usefulness of the derived transfer function.