<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE root>
<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Structural Mechanics of Engineering Constructions and Buildings</journal-id><journal-title-group><journal-title xml:lang="en">Structural Mechanics of Engineering Constructions and Buildings</journal-title><trans-title-group xml:lang="ru"><trans-title>Строительная механика инженерных конструкций и сооружений</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1815-5235</issn><issn publication-format="electronic">2587-8700</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">26186</article-id><article-id pub-id-type="doi">10.22363/1815-5235-2021-17-1-51-62</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Analytical and numerical methods of analysis of structures</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Аналитические и численные методы расчета конструкций</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Stress state analysis of an equal slope shell under uniformly distributed tangential load by different methods</article-title><trans-title-group xml:lang="ru"><trans-title>Анализ напряженного состояния оболочки одинакового ската при действии равномерно распределенной касательной нагрузки различными методами</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Aleshina</surname><given-names>Olga O.</given-names></name><name xml:lang="ru"><surname>Алёшина</surname><given-names>Ольга Олеговна</given-names></name></name-alternatives><bio xml:lang="en"><p>teacher-researcher, assistant of the Department of Civil Engineering of the Academy of Engineering</p></bio><bio xml:lang="ru"><p>преподаватель-исследователь, ассистент департамента строительства Инженерной академии</p></bio><email>xiaofeng@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ivanov</surname><given-names>Vyacheslav N.</given-names></name><name xml:lang="ru"><surname>Иванов</surname><given-names>Вячеслав Николаевич</given-names></name></name-alternatives><bio xml:lang="en"><p>Professor of the Department of Civil Engineering of the Academy of Engineering, Doctor of Technical Sciences</p></bio><bio xml:lang="ru"><p>профессор департамента строительства Инженерной академии, доктор технических наук</p></bio><email>xiaofeng@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Cajamarca-Zuniga</surname><given-names>David</given-names></name><name xml:lang="ru"><surname>Кахамарка-Сунига</surname><given-names>Давид</given-names></name></name-alternatives><bio xml:lang="en"><p>Docent of the Department of Civil Engineering</p></bio><bio xml:lang="ru"><p>доцент инженерного факультета</p></bio><email>xiaofeng@yandex.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (RUDN University)</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Catholic University of Cuenca</institution></aff><aff><institution xml:lang="ru">Католический университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-04-02" publication-format="electronic"><day>02</day><month>04</month><year>2021</year></pub-date><volume>17</volume><issue>1</issue><issue-title xml:lang="en">VOL 17, NO1 (2021)</issue-title><issue-title xml:lang="ru">ТОМ 17, №1 (2021)</issue-title><fpage>51</fpage><lpage>62</lpage><history><date date-type="received" iso-8601-date="2021-04-02"><day>02</day><month>04</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Aleshina O.O., Ivanov V.N., Cajamarca-Zuniga D.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Алёшина О.О., Иванов В.Н., Кахамарка-Сунига Д.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Aleshina O.O., Ivanov V.N., Cajamarca-Zuniga D.</copyright-holder><copyright-holder xml:lang="ru">Алёшина О.О., Иванов В.Н., Кахамарка-Сунига Д.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/structural-mechanics/article/view/26186">https://journals.rudn.ru/structural-mechanics/article/view/26186</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Nowadays there are various calculation methods for solving a wide range of problems in construction, hydrodynamics, thermal conductivity, aerospace research and many other areas of industry. Analytical methods that make up one class for solving problems, and numerical calculation methods that make up another class, including those implemented in computing complexes, are used for the design and construction of various thin-walled structures such as shells. Due to the fact that thin-walled spatial structures in the form of various shells are widely used in many areas of human activity it is useful to understand and know the capabilities of different calculation methods. Research works on the study of the stress-strain state of the torse shell of equal slope with an ellipse at the base are not widely available at the moment. For the first time the derivation of the differential equations of equilibrium of momentless theory of shells to determine the normal force Nu from the action of uniformly distributed load tangentially directed along rectilinear generatrixes to the middle surface of the torse of equal slope with a directrix ellipse is presented in this article. The parameters of the stress state of the studied torse are also obtained by the finite element method and the variational-difference method. The SCAD software based on the finite element method and the program SHELLVRM written on the basis of the variational-difference method are used. The numerical results of the parameters of the stress state of the studied torse are analyzed, and the advantages and disadvantages of the analytical method and two numerical calculation methods are determined.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">На сегодняшний день существуют различные методы расчета для решения широкого спектра задач в строительстве, гидродинамике, теплопроводности, космических исследованиях и других отраслях. Для проектирования и возведения разнообразных тонкостенных конструкций типа оболочек применяются аналитические методы, составляющие один класс для решения задач, и численные методы расчета, составляющие другой класс, в том числе реализованные в вычислительных комплексах. В связи с тем, что тонкостенные пространственные конструкции в форме разнообразных оболочек широко используются во многих сферах деятельности человека, полезно понимать и знать возможности различных методов расчета. Работы по исследованию напряженно-деформированного состояния торсовой оболочки одинакового ската с эллипсом в основании представлены на данный момент в малом объеме. В статье впервые приводится вывод дифференциальных уравнений равновесия безмоментной теории оболочек для определения нормального усилия Nu от действия равномерно-распределенной нагрузки, направленной по касательной вдоль прямолинейных образующих к срединной поверхности торса одинакового ската с направляющим эллипсом. Также получены параметры напряженного состояния исследуемого торса методом конечных элементов и вариационно-разностным методом. Используются вычислительный комплекс SCAD Office на основе метода конечных элементов и программа SHELLVRM, написанная на базе вариационно-разностного метода. Выполнен анализ числовых результатов параметров напряженного состояния исследуемого торса, установлены плюсы и минусы применения аналитического метода и двух численных методов расчета.</p></trans-abstract><kwd-group xml:lang="en"><kwd>thin shell theory</kwd><kwd>analytical method</kwd><kwd>momentless state</kwd><kwd>torse shell</kwd><kwd>surface of equal slope</kwd><kwd>finite element method</kwd><kwd>variational-difference method</kwd><kwd>SCAD Office computing system</kwd><kwd>Mathcad system</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>теория тонких оболочек</kwd><kwd>аналитическое решение</kwd><kwd>безмоментное состояние</kwd><kwd>торсовая оболочка</kwd><kwd>поверхность одинакового ската</kwd><kwd>метод конечных элементов</kwd><kwd>вариационно-разностный метод</kwd><kwd>вычислительный комплекс SCAD Office</kwd><kwd>система Mathcad</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Sabat L., Kundu C.K. History of finite element method: a review. Recent Developments in Sustainable Infrastructure. 2021:395-404. https://doi.org/10.1007/978-981-15-4577-132</mixed-citation><mixed-citation xml:lang="ru">Sabat L., Kundu C.K. History of finite element method: a review // Recent Developments in Sustainable Infrastructure. 2021. Pp. 395–404. https://doi.org/10.1007/978-981-15-4577-132</mixed-citation></citation-alternatives></ref><ref id="B2"><label>2.</label><citation-alternatives><mixed-citation xml:lang="en">Gupta K.K., Meek J.L. A brief history of the beginning of the finite element method. International Journal for Numerical Methods in Engineering. 1996;39(22):3761-3774. https://doi.org/10.1002/(SICI)1097-0207(19961130)39:22&lt;3761:: AID-NME22&gt;3.0.CO;2-5</mixed-citation><mixed-citation xml:lang="ru">Gupta K.K., Meek J.L. A brief history of the beginning of the finite element method // International Journal for Numerical Methods in Engineering. 1996. Vol. 39. No. 22. Pp. 3761–3774. https://doi.org/10.1002/(SICI)1097-0207(19961130)39: 22&lt;3761::AID-NME22&gt;3.0.CO;2-5</mixed-citation></citation-alternatives></ref><ref id="B3"><label>3.</label><citation-alternatives><mixed-citation xml:lang="en">Zenkevich O., Morgan K. Konechnye elementy i approksimaciya [Finite elements and approximation]. Moscow: Mir Publ.; 1986. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Зенкевич О., Морган К. Конечные элементы и аппроксимация. М.: Мир, 1986. 318 с.</mixed-citation></citation-alternatives></ref><ref id="B4"><label>4.</label><citation-alternatives><mixed-citation xml:lang="en">Tyukalov Yu.Ya. Finite element models in stresses for bending plates. Magazine of Civil Engineering. 2018;6(82): 170-190. https://doi.org/10.18720/MCE.82.16</mixed-citation><mixed-citation xml:lang="ru">Tyukalov Yu.Ya. Finite element models in stresses for bending plates // Magazine of Civil Engineering. 2018. № 6 (82). Pp. 170–190. https://doi.org/10.18720/MCE.82.16</mixed-citation></citation-alternatives></ref><ref id="B5"><label>5.</label><citation-alternatives><mixed-citation xml:lang="en">Tyukalov Yu.Ya. Finite element models in stresses for plane elasticity problems. Magazine of Civil Engineering. 2018;1(77):23-37. https://doi.org/10.18720/MCE.77.3</mixed-citation><mixed-citation xml:lang="ru">Tyukalov Yu.Ya. Finite element models in stresses for plane elasticity problems // Magazine of Civil Engineering. 2018. № 1 (77). Pp. 23–37. https://doi.org/10.18720/MCE.77.3</mixed-citation></citation-alternatives></ref><ref id="B6"><label>6.</label><citation-alternatives><mixed-citation xml:lang="en">Cen S., Li C., Rajendran S., Hu Z. Advances in finite element method. Mathematical Problems in Engineering. 2014:206369. https://doi.org/10.1155/2014/206369</mixed-citation><mixed-citation xml:lang="ru">Cen S., Li C., Rajendran S., Hu Z. Advances in finite element method // Mathematical Problems in Engineering. 2014. https://doi.org/10.1155/2014/206369</mixed-citation></citation-alternatives></ref><ref id="B7"><label>7.</label><citation-alternatives><mixed-citation xml:lang="en">Bushnell D., Almroth B.O., Brogan F. Finite-difference energy method for nonlinear shell analysis. Computers and Structures. 1971;1(3):361-387. https://doi.org/10.1016/0045-7949(71)90020-4</mixed-citation><mixed-citation xml:lang="ru">Bushnell D., Almroth B.O., Brogan F. Finite-difference energy method for nonlinear shell analysis // Computers and Structures. 1971. Vol. 1. Issue 3. Pp. 361–387. https://doi.org/10.1016/0045-7949(71)90020-4</mixed-citation></citation-alternatives></ref><ref id="B8"><label>8.</label><citation-alternatives><mixed-citation xml:lang="en">Barve V.D., Dey S.S. Isoparametric finite difference energy method for plate bending problems. Computers and Structures. 1983;17(3):459-465. https://doi.org/10.1016/0045-7949(83)90137-2</mixed-citation><mixed-citation xml:lang="ru">Barve V.D., Dey S.S. Isoparametric finite difference energy method for plate bending problems // Computers and Structures. 1983. Vol. 17. No. 3. Pp. 459–465. https://doi.org/10.1016/0045-7949(83)90137-2</mixed-citation></citation-alternatives></ref><ref id="B9"><label>9.</label><citation-alternatives><mixed-citation xml:lang="en">Maksimyuk V.A., Storozhuk E.A., Chernyshenko I.S. Variational finite-difference methods in linear and nonlinear problems of the deformation of metallic and composite shells. International Applied Mechanics. 2012;48(6):613-687. https://doi.org/10.1007/s10778-012-0544-8</mixed-citation><mixed-citation xml:lang="ru">Maksimyuk V.A., Storozhuk E.A., Chernyshenko I.S. Variational finite-difference methods in linear and nonlinear problems of the deformation of metallic and composite shells // International Applied Mechanics. 2012. Vol. 48. No. 6. Pp. 613–687. https://doi.org/10.1007/s10778-012-0544-8</mixed-citation></citation-alternatives></ref><ref id="B10"><label>10.</label><citation-alternatives><mixed-citation xml:lang="en">Trushin S., Goryachkin D. Numerical evaluation of stress-strain state of bending plates based on various models. Procedia Engineering. 2016;153:781-784. https://doi.org/10.1016/j.proeng.2016.08.242</mixed-citation><mixed-citation xml:lang="ru">Trushin S., Goryachkin D. Numerical evaluation of stress-strain state of bending plates based on various models // Procedia Engineering. 2016. Vol. 153. Pp. 781–784. https://doi.org/10.1016/j.proeng.2016.08.242</mixed-citation></citation-alternatives></ref><ref id="B11"><label>11.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N., Kushnarenko I. Stiffeners in variational-difference method for calculating shells with complex geometry. Vestnik MGSU. Proceedings of Moscow State University of Civil Engineering. 2014;(5):25-34. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н., Кушнаренко И.В. Подкрепления в вариационно-разностном методе расчета оболочек сложной формы // Вестник МГСУ. 2014. № 5. С. 25–34.</mixed-citation></citation-alternatives></ref><ref id="B12"><label>12.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V., Rynkovskaya M. Analysis of thin walled wavy shell of monge type surface with parabola and sinusoid curves by variational-difference method. MATEC Web of Conferences. 2017;95:1-5. https://doi.org/10.1051/matecconf/20179512007</mixed-citation><mixed-citation xml:lang="ru">Ivanov V., Rynkovskaya M. Analysis of thin walled wavy shell of monge type surface with parabola and sinusoid curves by variational-difference method // MATEC Web of Conferences. 2017. Vol. 95. Pp. 1–5. https://doi.org/10.1051/ matecconf/20179512007</mixed-citation></citation-alternatives></ref><ref id="B13"><label>13.</label><citation-alternatives><mixed-citation xml:lang="en">Govind P.L. Complicated features and their solution in analysis of thin shell and plate structures. Structural Mechanics of Engineering Constructions and Buildings. 2018;14(6):509-515. https://doi.org/10.22363/1815-5235-2018-14-6-509-515</mixed-citation><mixed-citation xml:lang="ru">Govind P.L. Complicated features and their solution in analysis of thin shell and plate structures // Structural Mechanics of Engineering Constructions and Buildings. 2018. Vol. 14. No. 6. Pp. 509–515. https://doi.org/10.22363/1815-5235-2018-14-6-509-515</mixed-citation></citation-alternatives></ref><ref id="B14"><label>14.</label><citation-alternatives><mixed-citation xml:lang="en">Dzhavadyan A.D. Grid selection in the variation-difference method for solving second-order elliptic equations with quasidegenerate quadratic form. USSR Computational Mathematics and Mathematical Physics. 1989;29(6):22-33. https://doi.org/doi:10.1016/s0041-5553(89)80004-7</mixed-citation><mixed-citation xml:lang="ru">Dzhavadyan A.D. Grid selection in the variation-difference method for solving second-order elliptic equations with quasidegenerate quadratic form // USSR Computational Mathematics and Mathematical Physics. 1989. Vol. 29. No. 6. Pp. 22–33. https://doi.org/doi:10.1016/s0041-5553(89)80004-7</mixed-citation></citation-alternatives></ref><ref id="B15"><label>15.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N. Osnovy metoda konechnyh elementov i variacionno-raznostnogo metoda [Fundamentals of the finite element method and the variational-difference method]. Moscow: RUDN Publ.; 2008. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н. Основы метода конечных элементов и вариационно-разностного метода. М.: РУДН, 2008.</mixed-citation></citation-alternatives></ref><ref id="B16"><label>16.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N. The variational-difference method and the method of global elements in the calculation of interfaces of shell compartments. Structural Mechanics of Engineering Constructions and Buildings. 2003;12:34-41. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н. Вариационно-разностный метод и метод глобальных элементов в расчете сопряжений отсеков оболочек // Строительная механика инженерных конструкций и сооружений: межвузовский сборник научных трудов. М.: Изд-во АСВ, 2003. Вып. 12. С. 34–41.</mixed-citation></citation-alternatives></ref><ref id="B17"><label>17.</label><citation-alternatives><mixed-citation xml:lang="en">Mikhlin S.G. Variational-difference approximation. Journal of Soviet Mathematics. 1978;10(5):661-787. https://doi.org/https://doi.org/10.1007/BF01083968</mixed-citation><mixed-citation xml:lang="ru">Mikhlin S.G. Variational-difference approximation // Journal of Soviet Mathematics. 1978. Vol. 10. No. 5. Pp. 661–787. https://doi.org/https://doi.org/10.1007/BF01083968</mixed-citation></citation-alternatives></ref><ref id="B18"><label>18.</label><citation-alternatives><mixed-citation xml:lang="en">Courant R. Variational methods for the solution of problems of equilibrium and vibrations. Bulletin of the American Mathematical Society. 1943;49(1):1-23.</mixed-citation><mixed-citation xml:lang="ru">Courant R. Variational methods for the solution of problems of equilibrium and vibrations // Bulletin of the American Mathematical Society. 1943. Vol. 49. No. 1. Pp. 1–23.</mixed-citation></citation-alternatives></ref><ref id="B19"><label>19.</label><citation-alternatives><mixed-citation xml:lang="en">Zhong H., Yu T. A weak form quadrature element method for plane elasticity problems. Applied Mathematical Modelling. 2009;33(10):3801-3814. https://doi.org/10.1016/j.apm.2008.12.007</mixed-citation><mixed-citation xml:lang="ru">Zhong H., Yu T. A weak form quadrature element method for plane elasticity problems // Applied Mathematical Modelling. 2009. Vol. 33. No. 10. Pp. 3801–3814. https://doi.org/10.1016/j.apm.2008.12.007</mixed-citation></citation-alternatives></ref><ref id="B20"><label>20.</label><citation-alternatives><mixed-citation xml:lang="en">Griffin D.S., Varga R.S. Numerical solution of plane elasticity problems. Journal of the Society for Industrial and Applied Mathematics. 1963;11(4):1046-1062.</mixed-citation><mixed-citation xml:lang="ru">Griffin D.S., Varga R.S. Numerical solution of plane elasticity problems // Journal of the Society for Industrial and Applied Mathematics. 1963. Vol. 11. No. 4. Pp. 1046–1062.</mixed-citation></citation-alternatives></ref><ref id="B21"><label>21.</label><citation-alternatives><mixed-citation xml:lang="en">Brush D.O., Almroth B.O. Buckling of bars, plates, and shells. New York: McGraw-Hill; 1975.</mixed-citation><mixed-citation xml:lang="ru">Brush D.O., Almroth B.O. Buckling of bars, plates, and shells. New York: McGraw-Hill, 1975.</mixed-citation></citation-alternatives></ref><ref id="B22"><label>22.</label><citation-alternatives><mixed-citation xml:lang="en">Xing Y., Liu B., Liu G. A differential quadrature finite element method. International Journal of Applied Mechanics. 2010;2(1):207-227. https://doi.org/10.1142/S1758825110000470</mixed-citation><mixed-citation xml:lang="ru">Xing Y., Liu B., Liu G. A differential quadrature finite element method // International Journal of Applied Mechanics. 2010. Vol. 2. No. 1. Pp. 207–227. https://doi.org/10.1142/S1758825110000470</mixed-citation></citation-alternatives></ref><ref id="B23"><label>23.</label><citation-alternatives><mixed-citation xml:lang="en">Repin S.I. A variational-difference method of solving problems with functionals of linear growth. USSR Computational Mathematics and Mathematical Physics. 1989;29(3):35-46. https://doi.org/10.1016/0041-5553(89)90145-6</mixed-citation><mixed-citation xml:lang="ru">Repin S.I. A variational-difference method of solving problems with functionals of linear growth // USSR Computational Mathematics and Mathematical Physics. 1989. Vol. 29. No. 3. Pp. 35–46. https://doi.org/10.1016/0041-5553(89)90145-6</mixed-citation></citation-alternatives></ref><ref id="B24"><label>24.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N., Krivoshapko S.N. Analiticheskie metody rascheta obolochek nekanonicheskoj formy [Analytical methods for calculating shells of non-canonical form]. Moscow; 2010. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н., Кривошапко С.Н. Аналитические методы расчета оболочек неканонической формы: монография. М.: РУДН, 2010. 540 с.</mixed-citation></citation-alternatives></ref><ref id="B25"><label>25.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N., Ivanov V.N. Encyclopedia of analytical surfaces. Switzerland: Springer International Publishing AG; 2015.</mixed-citation><mixed-citation xml:lang="ru">Krivoshapko S.N., Ivanov V.N. Encyclopedia of analytical surfaces. Switzerland: Springer International Publishing AG, 2015.</mixed-citation></citation-alternatives></ref><ref id="B26"><label>26.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N., Romanova V.A. Konstruktsionnye formy prostranstvennykh konstruktsii. Vizualizatsiya poverkhnostei v sistemakh MathCad, AutoCad [Constructive forms of space constructions. visualization of the surfaces at the systems “MathCAD" and “AutoCAD”]. Moscow: ASV Publishing House; 2016. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н., Романова В.А. Конструкционные формы пространственных конструкций. Визуализация поверхностей в системах «MathCad» и «AUTOCad»: монография. М.: Издательство АСВ, 2016. 412 с.</mixed-citation></citation-alternatives></ref><ref id="B27"><label>27.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N. Geometriya linejchatyh poverhnostej s rebrom vozvrata i linejnaya teoriya rascheta torsovyh obolochek [Geometry of ruled surfaces with cuspidal edge and linear theory of analysis of torse shells]. Moscow; 2009. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Кривошапко С.Н. Геометрия линейчатых поверхностей с ребром возврата и линейная теория расчета торсовых оболочек. М.: РУДН, 2009. 357 c. (Библиотека классического университета).</mixed-citation></citation-alternatives></ref><ref id="B28"><label>28.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N. The application, geometrical and strength researches of torse shells: the review of works published after 2008. Structural Mechanics and Analysis of Constructions. 2018;2:19-25.</mixed-citation><mixed-citation xml:lang="ru">Krivoshapko S.N. The application, geometrical and strength researches of torse shells: the review of works published after 2008 // Structural Mechanics and Analysis of Constructions. 2018. No. 2. Pp. 19–25.</mixed-citation></citation-alternatives></ref><ref id="B29"><label>29.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N. Perspectives and advantages of tangential developable surfaces in modeling machine-building and building designs. Vestnik Grazhdanskix Inzhenerov [Proceedings of Civil Engineers]. 2019;16(1):20-30. (In Russ.) https://doi.org/10.23968/1999-5571-2019-16-1-20-30</mixed-citation><mixed-citation xml:lang="ru">Кривошапко С.Н. Перспективы и преимущества торсовых поверхностей при моделировании машиностроительных и строительных конструкций // Вестник гражданских инженеров. 2019. № 1 (72). С. 20–30. https://doi.org/10.23968/1999-5571-2019-16-1-20-30</mixed-citation></citation-alternatives></ref><ref id="B30"><label>30.</label><citation-alternatives><mixed-citation xml:lang="en">Aleshina O.O. New information about the use of shells with tangential developable middle surfaces. Process Management and Scientific Developments. Birmingham: Infinity; 2020. p. 140-146.</mixed-citation><mixed-citation xml:lang="ru">Aleshina O.O. New information about the use of shells with tangential developable middle surfaces. Process Management and Scientific Developments. Birmingham: Infinity, 2020. Pp. 140–146.</mixed-citation></citation-alternatives></ref><ref id="B31"><label>31.</label><citation-alternatives><mixed-citation xml:lang="en">Chen M., Tang K. A fully geometric approach for developable cloth deformation simulation. Visual Computer. 2010;26(6-8):853-863. https://doi.org/10.1007/s00371-010-0467-5</mixed-citation><mixed-citation xml:lang="ru">Chen M., Tang K. A fully geometric approach for developable cloth deformation simulation // Visual Computer. 2010. Vol. 26. No. 6–8. Pp. 853–863. https://doi.org/10.1007/s00371-010-0467-5</mixed-citation></citation-alternatives></ref><ref id="B32"><label>32.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N., Alyoshina O.O. Comparative Analysis of the stress-strain state’s parameters of equal slope shell with the director ellipse using three calculation methods. Structural Mechanics and Analysis of Constructions, 2020;3(290):37-46. (In Russ.) https://doi.org/10.37538/0039-2383.2020.3.37.46</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н., Алёшина О.О. Сравнительный анализ параметров напряженно-деформированного состояния торса с направляющим эллипсом с помощью трех методов расчета // Строительная механика и расчет сооружений. 2020. № 3 (290). С. 37–46. https://doi.org/10.37538/0039-2383.2020.3.37.46</mixed-citation></citation-alternatives></ref><ref id="B33"><label>33.</label><citation-alternatives><mixed-citation xml:lang="en">Aleshina O.O., Ivanov V.N., Grinko E.A. Investigation of the equal slope shell stress state by analytical and two numerical methods. Structural Mechanics and Analysis of Constructions. 2020;6:2-13. https://doi.org/10.37538/0039-2383.2020.6.2.13</mixed-citation><mixed-citation xml:lang="ru">Aleshina O.O., Ivanov V.N., Grinko E.A. Investigation of the equal slope shell stress state by analytical and two numerical methods // Structural Mechanics and Analysis of Constructions. 2020. No. 6. Pp. 2–13. https://doi.org/10.37538/ 0039-2383.2020.6.2.13</mixed-citation></citation-alternatives></ref><ref id="B34"><label>34.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N., Alyoshina O.O. Comparative analysis of the results of determining the parameters of the stress-strain state of equal slope shell. Structural Mechanics of Engineering Constructions and Buildings. 2019;15(5):374-383. http://dx.doi.org/10.22363/1815-5235-2019-15-5-374-383 (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н., Алёшина О.О. Сравнительный анализ результатов определения параметров напряженно-деформированного состояния оболочки одинакового ската с направляющим эллипсом в основании // Строительная механика инженерных конструкций и сооружений. 2019. Т. 15. № 5. С. 374–383. http://dx.doi.org/10.22363/1815-5235-2019-15-5-374-383</mixed-citation></citation-alternatives></ref><ref id="B35"><label>35.</label><citation-alternatives><mixed-citation xml:lang="en">Aleshina O.O. Studies of geometry and calculation of torso shells of an equal slope. Structural Mechanics and Analysis of Constructions. 2019;3:63-70. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Алёшина О.О. Исследования по геометрии и расчету торсовых оболочек одинакового ската // Строительная механика и расчет сооружений. 2019. № 3 (284). С. 63–70.</mixed-citation></citation-alternatives></ref><ref id="B36"><label>36.</label><citation-alternatives><mixed-citation xml:lang="en">Alyoshina O.O. Definition of the law of setting closed curves torso shells of the equal slope. Proceedings of the scientific and practical conference with international participation “Engineering Systems - 2020”, dedicated to the 60th anniversary of the Peoples’ Friendship University of Russia, Moscow, October 14-16, 2020. 2020;1:22-30. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Алёшина О.О. Определение закона задания замкнутых кривых торсовых оболочек одинакового ската // Инженерные системы – 2020: труды научно-практической конференции с международным участием, посвященной 60-летию Российского университета дружбы народов: в 2 т. / под общ. ред. М.Ю. Мальковой. М.: РУДН, 2020. Т. 1. С. 22–30.</mixed-citation></citation-alternatives></ref><ref id="B37"><label>37.</label><citation-alternatives><mixed-citation xml:lang="en">Kumudini Jayavardena M.K. Geometry and example of strength analysis of thin elastic shell in the form of a torse-helicoid. Questions of the strength of spatial systems: materials of the XXVIII Scientific Conference of the Engineering Faculty. Moscow: RUDN Publ.; 1992. p. 48-51. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Камудини Джаявардена М.К. Геометрия и пример расчета на прочность тонкой упругой оболочки в форме торса-геликоида // Вопросы прочности пространственных систем: материалы XXVIII Научной конференции инженерного факультета. М.: РУДН, 1992. С. 48–51.</mixed-citation></citation-alternatives></ref><ref id="B38"><label>38.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N., Krutov A.B. Cuspidal edges, lines of the unit and self-intersectionsof some technologiсal surfaces of slope. Journal of Engineering Researches. 2001;1:98-104. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Кривошапко С.Н., Крутов А.В. Ребра возврата, линии раздела и самопересечения некоторых технологических поверхностей откоса // Вестник Российского университета дружбы народов. Серия: Инженерные исследования. 2001. № 1. С. 98–104.</mixed-citation></citation-alternatives></ref><ref id="B39"><label>39.</label><citation-alternatives><mixed-citation xml:lang="en">Ivanov V.N., Lamichane G.P. Compound space constructions. Proceedings of the scientific and practical conference with international participation “Engineering Systems - 2020”, dedicated to the 60th anniversary of the Peoples’ Friendship University of Russia, Moscow, October 14-16, 2020. 2020;1:31-39. (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Иванов В.Н., Ламичхане Г.П. Комбинированные пространственные конструкции // Инженерные системы – 2020: труды научно-практической конференции с международным участием, посвященной 60-летию Российского университета дружбы народов: в 2 т. / под общ. ред. М.Ю. Мальковой. М.: РУДН, 2020. Т. 1. С. 31–39.</mixed-citation></citation-alternatives></ref><ref id="B40"><label>40.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N. The opportunities of umbrella-type shells. Structural Mechanics of Engineering Constructions and Buildings. 2020;16(4):271-278. http://dx.doi.org/10.22363/1815-5235-2020-16-4-271-278</mixed-citation><mixed-citation xml:lang="ru">Krivoshapko S.N. The opportunities of umbrella-type shells // Structural Mechanics of Engineering Constructions and Buildings. 2020. Vol. 16. No. 4. Pp. 271–278. http://dx.doi.org/10.22363/1815-5235-2020-16-4-271-278</mixed-citation></citation-alternatives></ref><ref id="B41"><label>41.</label><citation-alternatives><mixed-citation xml:lang="en">Krivoshapko S.N. Analytical ruled surfaces and their complete classification. Structural Mechanics of Engineering Constructions and Buildings. 2020;16(2):131-138. http://dx.doi.org/10.22363/1815-5235-2020-16-2-131-138 (In Russ.)</mixed-citation><mixed-citation xml:lang="ru">Кривошапко С.Н. Аналитические линейчатые поверхности и их полная классификация // Строительная механика инженерных конструкций и сооружений. 2020. Т. 16. № 2. С. 131–138. https://doi.org/10.22363/1815-5235-2020-16-2-131-138</mixed-citation></citation-alternatives></ref></ref-list></back></article>
