Ejaculation
发表于 2025-3-21 17:53:24
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清澈
发表于 2025-3-22 00:06:24
Hysteretic Instabilityse from internal hysteresis of the shaft material. As many modern rotors are complex assemblies of components, the conditions under which assembly or material hysteresis may give rise to unstable whirling are of great interest (see figure 1).
弯曲的人
发表于 2025-3-22 02:34:15
Fluid Instabilitytate equilibrium position. The speed beyond which the shaft becomes unstable and the whirl orbit begins to increase in diameter with time is defined as the threshold speed. Fluid-film instability is strongly influenced by the type of bearings which support the rotor, and by the relative flexibility of the rotor itself.
Encoding
发表于 2025-3-22 07:18:01
Technology, Mathematucs, and industry,ch inherently contains more non-rotating velocity damping. It should be noted that the increase of any damping which rotates with the shaft itself has a stabilizing effect below the bending critical speed, and a destabilizing effect above the bending critical speed.
Harpoon
发表于 2025-3-22 12:23:51
R. De Graaff,M. De Laat,H. Scheltingaalancing were published by Federn (1) in 1957 and by Bishop (2) in 1959. Papers on the influence coefficient approach were published by Goodman (3) in 1963, Rieger (4) in 1967 and Tessarzik, Badgley and Anderson (5) in 1971.
arousal
发表于 2025-3-22 13:51:24
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arousal
发表于 2025-3-22 19:12:59
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biopsy
发表于 2025-3-23 00:34:14
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独特性
发表于 2025-3-23 01:22:46
Balancing of Flexible Rotorsalancing were published by Federn (1) in 1957 and by Bishop (2) in 1959. Papers on the influence coefficient approach were published by Goodman (3) in 1963, Rieger (4) in 1967 and Tessarzik, Badgley and Anderson (5) in 1971.
2否定
发表于 2025-3-23 06:19:29
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