Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia (RUDN University)11254Research ArticleEMI-ANALYTICAL ANALYSIS OF A LONG SHALLOW OBLIQUE HELICOIDAL SHELL IN A NON-ORTHOGONAL NON-CONJUGATE COORDINATE SYSTEMTupikovaE M-Peoples' Friendship University of Russia, Moscow1503201633812092016Copyright © 2016, Structural Mechanics of Engineering Constructions and Buildings2016The article discusses the problems of analysis of thin shallow shell in the form of oblique helicoid by different methods, particularly, by a semi-analytical method of numerical solution of three equilibrium equations in displacements and by V.G.Rekatch's analytical method, which was not numerically applied in any literature. New variant of analysis of stress-strain state of oblique helicoid shells was developed by applying V.Z. Vlasov's shallow shell the- ory. The equilibrium equations were obtained for three unknown displacements and after the numerical solution was usedoblique helicoidtheory of shallow shellsnon-conjugate orthogonal coordi- nate systemresulting equations in displacementsbending shell theoryкосой геликоидтеория пологих оболочекнесопряженная ортогональная система координатразрешающие уравнения в перемещенияхмоментная теория оболочек