Sealing Performance of the End Fitting of a Marine Unbonded Flexible Pipe under Pressure Penetration
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
View: 237
This Paper With 11 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JACM-6-3_014
تاریخ نمایه سازی: 11 تیر 1399
Abstract:
The sealing performance of end fittings is very important for offshore oil and gas pipelines. To investigate the sealing behavior of a ring-shaped wedge seal, global and local numerical models of the ring–pipe interaction have been developed based on the finite-element method. First, the sealing process of the ring under pressure is simulated. Second, a criterion for the penetration of fluid pressure is applied in these models to assess how the sealing capacity changes along the contact surface. Finally, the contact magnitude of interference and the shape of the sawtooth heaves on the sealing ring are predicted and compared. The results show an interesting concentration of von Mises stress in the sealing ring and also that the peak contact pressure appears in the sealing zone. However, the penetration of fluid pressure has obvious effects on the distributions of von Mises stress and contact pressure. The best sealing performance is when the axial displacement of the sealing ring is 1.4 mm and the contact magnitude of interference is 0.3 mm. Given the sawtooth heave of sealing ring, semicircular heave gives the better sealing capacity compared with trapezoidal heave.
Keywords:
Marine unbonded flexible pipe , Sealing performance , Finite-element method , Pressure penetration , Contact pressure
Authors
Liping Tang
School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, ۶۱۰۵۰۰, China
Wei He
School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, ۶۱۰۵۰۰, China
Xiaohua Zhu
School of Mechatronic Engineering, Southwest Petroleum University, Chengdu, ۶۱۰۵۰۰, China
Yunlai Zhou
Department of Civil and Environmental Engineering, National University of Singapore, Singapore, ۱۱۷۵۷۶, Singapore
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :