dragon 发表于 2025-3-23 12:00:11
Das Zeichen zum Aufbruch: „Ja, ich will!“n the principle of least action in the Hamilton-Ostrogradskiy form. The variational formulation of dynamics problems has definite advantages, for example, from the point of view of establishing the necessary and sufficient nature of the derived equations and boundary conditions, while the study of t彩色的蜡笔 发表于 2025-3-23 16:11:33
Gelassen ans Werk: Strategie und Umsetzungluid in the cavity can be described completely by a finite number of variables. Obviously this is only possible when the fluid fills the entire cavity and thus has no free surface. If the motion of the fluid is potential or homogeneous turbulent motion (quasi-solid), then the motion of the system isineluctable 发表于 2025-3-23 19:13:54
http://reply.papertrans.cn/29/2838/283766/283766_13.pngSchlemms-Canal 发表于 2025-3-23 22:36:26
http://reply.papertrans.cn/29/2838/283766/283766_14.pngGeneralize 发表于 2025-3-24 06:10:33
Empirischer Zugang zu Werthaltungenan ideal fluid and we shall consider certain elementary problems, on the assumption that the external forces are conservative. It is assumed for simplicity that the vibrating system contains only one “fluid link,” i.e., one cavity with an ideal incompressible fluid. All of the results are trivially抗体 发表于 2025-3-24 07:23:09
Forschungsethische Überlegungenitational forces or inertial forces. The free surface of the fluid was considered as free of any stresses. For an extensive group of problems this model is completely satisfactory. But actually each real fluid is also subjected to surface tension forces and, when the mass forces are weak (for exampl披肩 发表于 2025-3-24 13:58:48
http://reply.papertrans.cn/29/2838/283766/283766_17.png压碎 发表于 2025-3-24 17:09:32
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Stability of Motion with Respect to a Part of the Variables of a Rigid Body with Cavities Partially led with an ideal or viscous fluid. These problems deal with the variables defining the motion of such body and with some quantities characterizing the motion of the fluid as a whole.. Stated in this way, the problem can be considered as determining the stability of motion of the system with respectVEN 发表于 2025-3-25 00:55:09
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