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AN APPROACH FOR ESTIMATING CRITICAL TEMPERATURES OF BUCLING OF SHALLOW CYLINDRICAL SHELLS.

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MAQOLA ANNOTATSIYASI

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Bu ishda tekis silindrik qobiqning sharnir bog'lanishdagi xolatida ustuvorlikni yoqotish holatlaridagi kritik temperaturani aniqlash ko'rib chiqilgan. Kuzatuvlar natijasida turli iqlimga ega hududlarda vagon ustki qobig’larining ustuvorligini yoqotishi o’rganildi. Nazariy jihatdan qobiqning kritik temperaturasiga bo’g’liq ekanligi aniqlandi. Yarim slindrik qobiq ko’rinishida element tanlanib olindi. Kritik temperaturani aniqlashda Bubnov-Galeyorkin metodidan va V.Z.Vlasovning yarim silindirik qobiq uchun olingan tenglamasidan foydalanilgan. Hisoblash ishlari bajarilgan va to'liq xolat uchun Chekli elementlar metodi yordamida olingan natijalar bilan solishtirilgan.Olingan natijalar o'zoro yaqinlashishi keltirilgan.

MUALIFLAR

Teglar

# FEM# Сylindrical shell# loss of stability# body of aircraft# Bubnov-Galerkin# critical temperature

Maqolani baholang

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Maqola idintifikatorlari

Foydalanilgan adabiyotlar

Volmir A.S. Stability of systems under deformation. Moscow, Nauka, 1967, 984p. 2. Pogorelov V.I. Stroitel’naya mexanika tonkostennix konstruktsiy. SPv.: BXVPeterburg, 2007. 528 s. 3. Konstruirovanie I raschot vagonov: uchebnik/ V.V.Lukin, P.S. Anisimov, V.N. Koturanov i dr.; pod red. P.S. Anisimova. —2-e izd., pererab i dop. — M.: FGOU «UMTS», 2011.- 688 s. 4. Ispol’zovanie paket ANSYS dlya proektirovaniya detaley aviatsionniix redakturov: ucheb.posobie / V.B.Balyakin, A.G. Kojin. - Samara: Izd-vo Samar, gos. aerokosm, un-ta, 2007. - 44 s. 5. Utilin V.V., Physically non-linear analysis of structure stability. StP., GIORD, 2007, 96p. 6. Trebushko O.I Osnovii teorii uprugosti i plastichnosti – Москва: Наука,1984,320 с. 7. Golovanov A.I., Berjnoy D.V. Metod konechniix elementov v mexanike deformiruemiix tverdiix tel. -Kazan: izd-vo «DAS», 2001. –300s. 8. Fadeev A.B Metod konechniix elementov v geomexanike. - M.:Nedra,1987, 221s. 9. Cing-Dao K., Dhafer M., Goerge T.B., Naih.E.B.. ―Crashworthiness Evalution Using Integrated Vehiscle and Occupant Finite Element Models‖. Internation Journal of Crashworthiness,pp:387-398,2001. 10. Pradeep M., Chung-Kyu P., Dhafer M., et al. ―LSTC/NCAC Dymmy Model Development‖. 11 th International LS-DYNA User Conference,2010 11. Xaldjigitov A.A., Xudazarov R.S., Sagdullaev D.A. Teorii plastichnosti I termoplastichnosti anizotropniix tel -T.: Fan va texnologiya, 2015, 320 s. 12. Carl.T.F Ross Finite element techniques in structural mechanic. –International publishers, Coll House, Westergate,England-1996,206 p 13. Ahkmedov A.B Shamsiev D.N. Neklassicheskaya teoriya plastin slojnoy konfiguratsii s peremennoy tolshinoyНеклассическая теория пластин сложной конфигурации с переменной толщиной Vestnik TGTU –Tashkent, 2013.,–№2.–C.14–23 14. Begmatov A.,Mamatova N.T. Zadacha o vnezapnom nagrujenii uprugo-plasticheskogo sterjnya, vzaimodeystvuyushego s okrujayushey sredoy // «Problemii mexanike».- 2019, №2 .Tashkent Mechanical Engineering 275 15. Ibodulloev Sh.R., Tilovov O. O’ Kompozit materiallarini nochiziqli deformatsiyalanishini ANSYS dasturida modellashtirish// ―XXI asrda ilm-fan taraqqiyotining rivojlanish istiqbollari va ularda innovatsiyaning tutgan o’rni‖ respublika ilmiy konferensiyasi. http://doi.org/10.26739/online_4 2019, №4. .414-416b.

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