Search academic texts

Information × Registration Number 0217U004084, 0116U006909 , R & D reports Title Development of research methods and algorithms strength and stability of thin-walled structures under dynamic loads popup.stage_title Head Volodymyr P. Shevchenko, Registration Date 13-01-2017 Organization Donetsk State University popup.description2 The object of the study are thin-walled elements of constructions, elastic and solid body with cavities containing liquid. The aim is to construct and study two new mathematical models of motion of an elastic rigid body with a liquid (ERBL) in the form of a system of elastic related rigid bodies with the liquid (SERRDL). The main objectives of the study, created models, checking their adequacy, efficiency and determining their applicability boundaries and establish with them new mechanical effects. It should be noted that the mathematical model of motion of elastic solids associated with the liquid and are of 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 first model of a system of elastic related rigid bodies with the liquid (SERRDL) the most important are: evaluation of environmental impact of resistance and perfect fluid on the conditions of stability of rotation of an elastic solid with the liquid; reception conditions for stability of uniform rotation of rigid body and rigid body with a perfect fluid; Study of stabilization of unstable rotation in an environment with a solid resistance to the liquid by means of rotating solids. For the second model of a rigid body with elastic compartments with a liquid (RBEСL) received and examined the conditions of stability of a rigid body with a multilayer liquid in cylindrical tanks with an elastic foundation and elastic transverse partitions. Product Description popup.authors Багно О.М. Вєтров О.С. Василенко В.Ю. Джуха Ю.О. Кононов Ю.М. Лимар О.О. Проскуряков В.О. popup.nrat_date 2020-04-02 Close