کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5473157 1520235 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical study on lateral buckling of pipelines with imperfection and sleeper
ترجمه فارسی عنوان
مطالعه عددی بر روی خمیدگی های جانبی خطوط لوله با ناقص و خواب
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی دریا (اقیانوس)
چکیده انگلیسی
Lateral buckling is an important issue in unburied high-temperature and high-pressure (HT/HP) subsea pipelines systems. The imperfection-sleeper method is one of the most well-known methods used to control lateral buckling of HT/HP pipelines. Pipelines-sleeper-seabed numerical models are established and verified to analyze the buckling behavior of pipelines using the imperfection-sleeper method. The influence of six main factors on lateral buckling behavior is investigated in details based on the numerical results. Equations of buckling displacement (buckling displacement is defined by the final displacement of the middle point of the pipelines), critical buckling force, and buckling stress (Mises stress) are proposed using the gene expression programming technique. These equations show good accuracy and can be used to assist in the design of sleepers and assess the compressive and stress levels of pipelines.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Ocean Research - Volume 68, October 2017, Pages 103-113
نویسندگان
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