| 摘要 |
PURPOSE:To make rotation to a higher zone attainable, by supporting a bearing part of a high-speed turning shaft with a shape memory alloy spring, and avoiding a resonance point of each second degree in a turning shaft system in a way of heating and radiating this spring. CONSTITUTION:A bearing part 3 being installed in a whirling generating part 2 in a turning shaft system is supported with a shape memory alloyed spring A whose one end 51 is locked to a constrained piece 4 of this bearing part 3 and other end 52 locked to a machine body 6, respectively, and a heating/ radiating on-off controller 7 is installed in this spring A. With this on-off control, a spring constant of this spring A is altered whereby rotation to a higher zone is made attainable while avoiding a resonance point of each second degree in the turning shaft system. |
