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Information × Registration Number 0217U007313, 0117U003535 , R & D reports Title DESIGN OF RESEARCH METHODS AND ALGORITHMS FOR STRENGTH AND STABILITY OF THIN-WALLED STRUCTURES THAT ARE SUBJECTED TO DYNAMIC LOADS popup.stage_title Head Volodymyr P. Shevchenko, Registration Date 28-12-2017 Organization Donetsk State University popup.description2 The object of the study are thin-walled elements of constructions, elastic and solid bodies with cavities containing liquid. The aim is to improve two new mathematical models of motion of an elastic rigid body with the liquid (ERBL) in the form of a system of elastic related rigid bodies with the liquid (SERRDL) and a rigid body with elastic compartments containing a liquid (RBEСL) and establish with them new mechanical effects in the dynamics of elastic body with a liquid. The main objectives of the study, improving models, checking their adequacy, efficiency and determining their applicability boundaries and establish with them new mechanical effects. It should be noted that the mathematical models of motion of elastically connected solids with the liquid and motion of solid with elastic compartments have an independent scientific and practical interest. As many objects of modern rocket and space, aircraft, tanker and other equipment with sufficient accuracy for practical purposes can be described and analyzed in the framework of these models. For the model of a system of elastically connected rigid bodies with the liquid (SERRDL) the most important are: assessment of the impact of the fluid, environment with resistance and small asymmetry in solids on the conditions of stability of rotation of an elastic solid with the liquid; obtaining conditions of stability of the uniform rotation of asymmetric solid and asymmetric solid with an ideal liquid. For the model of a rigid body with elastic compartments containing a liquid (RBEСL), the most important are studies of the frequency spectrum of hydroelastic problem and the construction of eigenfunctions. Product Description popup.authors Горбань Ю.С. Джуха Ю.О. Кононов Ю.М. Шелепало (Крайнічук) Г.В. popup.nrat_date 2020-04-02 Close