hangdog
发表于 2025-3-27 00:18:57
On a Possibility of Classification of Part Surfacesgular surfaces in global sense is feasible in nature, local part surface patches can be classified. For the investigation of geometry of local part surface patches planar characteristic images are employed. In this analysis Dupin indicatrix, curvature indicatrix, and circular diagrams at a part surf
起皱纹
发表于 2025-3-27 02:24:22
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黑豹
发表于 2025-3-27 06:12:31
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Aids209
发表于 2025-3-27 10:00:20
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Scintigraphy
发表于 2025-3-27 15:02:36
“,”: More Characteristic CurvesAt the beginning main properties of the surface of “Plücker conoid” are briefly outlined. This includes but not limited to basics, analytical representation, and local properties along with auxiliary formulae. This analysis is followed by analytical description of local geometry of a smooth regular
conscribe
发表于 2025-3-27 21:19:49
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acclimate
发表于 2025-3-27 23:05:37
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Individual
发表于 2025-3-28 03:50:49
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因无茶而冷淡
发表于 2025-3-28 10:17:12
Generation of Enveloping Surfaces: Special Casesfaces is introduced. For generation of reversibly-enveloping surfaces a novel method is proposed. This method is illustrated by an example of generation of reversibly-enveloping surfaces in case tooth flanks for geometrically accurate (ideal or perfect) crossed-axis gear pairs. The performed analysi
heirloom
发表于 2025-3-28 13:21:02
https://doi.org/10.1007/978-3-322-92974-7rms of a smooth regular part surface. For an analytically specified surface, elements of its local geometry are outlined. This consideration includes but is not limited to analytical representation of unit tangent vectors, tangent plane, unit normal vector, unit vectors of principal directions on a