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Information × Registration Number 0209U005009, 0105U008955 , R & D reports Title Mathematical modeling and investigation of contact interaction of massive and thin-wall cylindrical structures popup.stage_title Head Syasky Andry Oleksiyovich, Registration Date 12-01-2009 Organization Rivne State University of Humanies popup.description2 The integral dependences with nucleus of Hilbert between components of deformation tensor and stress tensor on the contour of curvilinear hole in the infinite plate are constructed. The differential version boundary condition of partial unsymmetrical relative to the middle plane strengthening of curvilinear contour the plate by thin elastic rib of the varying stiffness is formulated. These conditions are generalized in case of unsymmetrical conjunction the infinite plate with circular hole and the circular elastic disk by assistance thin disconnected ribs. The system of singular integral – differential equation with nucleus of Hilbert for definition stress in the zone of contact plates and strengthening is constructed. The numerically – analytical collocation method is analyzed the effect of unsymmetrical strengthening elements on stress distribution by the contour of curvilinear hole in plate which simultaneous has been in generalized plane stress and cylindrical bending. The cases of unsymmetrical strengthening of the contour by: one rib of the varying stiffness of arbitrary location on the contour; two same axis-symmetric or centrosymmetric ribs; three axis-symmetric ribs are investigated. The problems of force and torque transfer to the infinite plate with curvilinear hole through one or a system unsymmetrical disconnected rib of the varying stiffness are considered. The method of solution contact problems for isotropic plates is transferred to the orthotropic plates with elliptic hole. The effect of orthotropic material and unsymmetrical strengthening ribs to the stress distribution on the contour of hole and in the strengthening are investigated. For cylindrical structure composed which composed of infinite plate with circular hole and circular disk unsymmetrical conjunction by assistance thin disconnected elastic ribs engineering method of calculus the stressed state for every structure element is developed. This method is transferred to the calculus plates with extrusion. Product Description popup.authors popup.nrat_date 2020-04-02 Close