奇思怪想 发表于 2025-3-28 15:28:20

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ANTE 发表于 2025-3-28 19:20:23

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土坯 发表于 2025-3-29 01:19:36

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Root494 发表于 2025-3-29 06:30:01

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拍下盗公款 发表于 2025-3-29 07:50:37

Suppression of Instabilities in Drilling Operations through Targeted Energy Transfer,. In particular, in deep-drilling operations it can be difficult to maintain a smooth cutting process at bit-rock interfaces. Among other disturbances and uncertainties in such operations, we mention the non-homogeneity of rock, the unavoidable friction effects (which are further complicated by flui

审问 发表于 2025-3-29 12:22:12

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zonules 发表于 2025-3-29 17:22:07

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HPA533 发表于 2025-3-29 23:04:35

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creatine-kinase 发表于 2025-3-30 01:41:35

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Latency 发表于 2025-3-30 05:43:24

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查看完整版本: Titlebook: Nonlinear Targeted Energy Transfer in Mechanical and Structural Systems; A. F. Vakakis,O. V. Gendelman,Y. S. Lee Book 2009 Springer Scienc