کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4451896 1620663 2014 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Global hydroelastic analysis of ultra large container ships by improved beam structural model
ترجمه فارسی عنوان
تجزیه و تحلیل جهانی هیدروالاستیک کشتی های با ظرفیت فوق العاده با استفاده از مدل ساختاری پرتو ارتقا یافته
کلمات کلیدی
هیدروالاستیشن، کشتی کانتینر، تئوری پرتو، بازگرداندن سفتی، روش عنصر محدود
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی

ABSTRACTSome results on the hydroelasticity of ultra large container ships related to the beam structural model and restoring stiffness achieved within EU FP7 Project TULCS are summarized. An advanced thin-walled girder theory based on the modified Timoshenko beam theory for flexural vibrations with analogical extension to the torsional problem, is used for formulation of the beam finite element for analysis of coupled horizontal and torsional ship hull vibrations. Special attention is paid to the contribution of transverse bulkheads to the open hull stiffness, as well as to the reduced stiffness of the relatively short engine room structure. In addition two definitions of the restoring stiffness are considered: consistent one, which includes hydrostatic and gravity properties, and unified one with geometric stiffness as structural contribution via calm water stress field. Both formulations are worked out by employing the finite element concept. Complete hydroelastic response of a ULCS is performed by coupling 1D structural model and 3D hydrodynamic model as well as for 3D structural and 3D hydrodynamic model. Also, fatigue of structural elements exposed to high stress concentration is considered.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Naval Architecture and Ocean Engineering - Volume 6, Issue 4, December 2014, Pages 1041–1063
نویسندگان
, , , , ,