| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2013: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
The following 3 purposed were achieved.
(1) [Development of the analytical method of the vibration of the cracked rotor] The analytical method of the vibration of the rotor with open crack supported by the asymmetric spring characteristic was developed and verified experimentally. (2) [Development of the model of the crack] The models of the open crack and the breathing crack were developed. Also, the fatigue test for generating the breathing crack were performed for two years to confirm the model. (3) [Development of the numerical method for the vibration of the rotor with breathing crack] The rotor model with breathing crack was constructed, and the numerical method for the vibration at the sub-resonances due to breathing crack was developed.
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