| Budget Amount *help |
¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Research Abstract |
A design method for machine tool supports is proposed to decrease rocking vibration. The stiffness between contacted interfaces is measured to develop a stiffness model of machine tool supports. Then, a method is proposed to design and locate the supports on the bases of the proposed stiffness model. In this method, the natural frequency of the rocking vibration is maximized by designing the bulk stiffness and the load so as not to saturate the stiffness of the support. Furthermore, the damping ratio of the rocking vibration is increased by adding supports with very small load. The proposed method was used for reducing the rocking vibration of a small knee-type horizontal milling machine.
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