| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
In rotor systems having a long-axis blade such as a turbine, zero and one modal diameter (k=0 and k=1) modes are well known with respect to blade-shaft coupled vibration.This study deal with the latter case that blades (k=1) are coupling with bending shaft vibration. In simulations and experiments, the coupled resonance wasconfirmed at the rotational speed which is |wb -ws|(where wb is blade natural frequency and ws is shaft natural frequency).
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