Structural Mechanics of Engineering Constructions and BuildingsStructural Mechanics of Engineering Constructions and Buildings1815-52352587-8700Peoples’ Friendship University of Russia (RUDN University)1727710.22363/1815-5235-2017-6-10-15Research ArticleCALCULATION OF THE SYSTEM OF TWO CLOSED CYLINDRICAL SHELLS WITH INTERMEDIATE SUPPORTSHAGIVALEEVKAMIL FATYKHOVICH<p>PhD, Associate Professor. gradu- ated from the Saratov Polytechnic Institute (1965), defended his thesis (1970). From 1968, he works at Saratov State Technical University named after Gagarin Yu.A. on the chair "Theory of Structures and Building Structures". His scientific interests: the calculation of cylindrical shells and spatial systems designed from closed cylindrical shells. 5 monographs and 100 articles have been published by him</p>Vasiltsov_Sergei@mail.ruSURNINAELENA KAMELEVNA<p>PhD, Associate Professor, graduated from Saratov State Uni- versity (1992) and Saratov State Technical University (2005), defended her thesis (1996). She is an as- sistant professor at Saratov State Technical University named after Gagarin Yu.A. The scientific direc- tion is the calculation of cylindrical shells and spatial systems made of closed cylindrical shells. Accord- ing to the results of her work, she published 1 monograph, 43 articles</p>Vasiltsov_Sergei@mail.ruVASILTSOVSERGEY VIKTOROVICH<p>PhD, graduated from the Saratov State Technical Univer- sity (2011), defended his thesis (2016). He works as a Chief Project Engineer at LLC "Neftegazinzhiniring", Saratov. His scientific directions: the calculation of cylindrical shells and shell spatial systems, and the calculation of closed circular rings under the action of various loads. 23 articles were published</p>Vasiltsov_Sergei@mail.ruPSHENOVANTON ANDREEVICH<p>graduated from the Saratov State Technical University named after Gagarin Yu.A. (2016). He works as an engineer in LLC Express-project.</p>Vasiltsov_Sergei@mail.ruThe Saratov State Technical University of Gagarin Yu.ALLC «Neftegasengineering»LLC «Express project»151220176101516112017Copyright © 2017, SHAGIVALEEV K.F., SURNINA E.K., VASILTSOV S.V., PSHENOV A.A.2017<p>A spatial system of two closed cylindrical shells is considered, having rigid fixation at one end and a free end at the other. Shells are located at some distance from each other and are interconnected by one intermediate link. One of the shells is under the action of a load, concentrated in the annular direction and uniformly distributed along one generatrix. To cal- culate the spatial system, the force method is used. Thus, the calculation of the spatial system is reduced to the calculation of individual closed cylindrical shells. From the condition of equality of radial displacements at the point of contact of the shells, the reactive pressure in the intermediate bond was determined. The magnitude of the reactive pressure in the bond varies depending on the location of the intermediate bond and the geometric parameters of the shells. Knowing the magnitude of the reactive pressure, one can determine the stress-strain state of each shell</p>shellsystem from two shellsgeometric parametersstatic loadmethod of forcesdisplacementstrigonometric seriesоболочкасистема из двух оболочекгеометрические пара- метрыстатическая нагрузкаметод силперемещениетригонометрический ряд[Shagivaleev, K.F. (2011). Calculation of the Closed Cylindrical Cover on the Local and Concentrated Loads. Saratov: Sarat. State Technical. Univ. 316 p.][Shagivaleev, K. F., Surnina, E.K., Pshenov, A.A. (2015). Calculation of a system of two closed cylindrical shells. III International Scientific and Practical Conference "Resource Energy-Efficient Technologies in the Building Complex": Proc. of scientific works, Vol. 2, Sarat. State. Tech. Univ., Sara-tov, 2015. 41—45.]