طراحی سازه بدنه فشار زیردریایی بر مبنای عدم قطعیت و روش‌های قابلیت اطمینان

نوع مقاله : مقاله پژوهشی

نویسندگان

گروه مهندسی صنایع، دانشکده فنی مهندسی، دانشگاه یزد، یزد، یزد، ایران.

چکیده
هدف: هدف این پژوهش ایجاد یک چارچوب طراحی مبتنی بر قابلیت اطمینان برای پوسته‌های فشاری زیردریایی است، با هدف دستیابی به تعادلی ایده‌آل میان یکپارچگی سازه‌ای و قابلیت اطمینان.
روش‌شناسی پژوهش: در ابتدا، یک مدل مکانیکی المان محدودساخته شد و با مقایسه با داده‌های تجربی، مورد اعتبارسنجی قرار گرفت. پس از آن مدل‌های جایگزین مختلفی از طریق الگوریتم‌های بهینه‌سازی وزنی طراحی شدند. عدم قطعیت‌ها به‌صورت متغیرهای تصادفی مدل‌سازی شده و ارزیابی‌های قابلیت اطمینان برای هر طراحی انجام گرفت.
یافته‌ها: نتایج نشان می‌دهد که مدل‌های بهینه‌شده حتی با وزن کاهش‌یافته می‌توانند احتمال خرابی قابل قبولی را فراهم کنند. اولویت‌بندی حاصل از تحلیل قابلیت اطمینان، دید روشنی برای انتخاب طراحی نهایی ارایه می‌دهد.
اصالت/ارزش افزوده علمی: نوآوری این مطالعه در کاربرد ترکیبی تحلیل اجزای محدود، مدل‌سازی عدم قطعیت و روش‌های بهینه‌سازی در طراحی مبتنی بر قابلیت اطمینان پوسته‌های فشاری نهفته است راهبردی که به‌ندرت در طراحی سازه‌های دریایی به‌کار گرفته می‌شود.

کلیدواژه‌ها


عنوان مقاله English

Structural design of submarine pressure hull based on uncertainty and reliability methods

نویسندگان English

Javad Sheikh Hafshejani
Mohammad Saber Fallah Nejad
Mohammad-Bagher Fakhrzad
Hasan Hosseini-Nasab
Department of Industrial Engineering, Faculty of Engineering, Yazd University, Yazd, Yazd, Iran.
چکیده English

Purpose: The goal of this research is to establish a design framework based on reliability for submarine pressure hulls, with the aim of attaining an ideal equilibrium between structural integrity and reliability.
Methodology: Initially, a mechanical Finite Element Model (FEM) was created and verified by comparing it to experimental data. Following that, various alternative models created through weight optimization algorithms were formulated. Uncertainties were represented using random variables, and reliability assessments were performed for each design.
Findings: The findings suggest that optimized models, even with reduced weights, can provide satisfactory failure probabilities. The prioritization derived from the reliability analysis offers a clear view of the final design.
Originality/Value: This study's uniqueness stems from its combined application of finite element analysis, uncertainty modeling, and optimization methods in reliability-based pressure hull design, a strategy seldom utilized in marine structural design.

کلیدواژه‌ها English

ABAQUS
Reliability methods
Pressure hull
Probabilistic models
Uncertainty
[1]     Norton, R. (1999). Design of machinery an introduction to the synthesis and analysis of mechanisms and machines. McGraw-Hill New York. https://B2n.ir/jr9783
[2]     Morandi, A. C., Faulkner, D., & Das, P. K. (1996). Frame tripping in ring stiffened externally pressurised cylinders. Marine structures, 9(6), 585–608. https://doi.org/10.1016/0951-8339(95)00020-8
[3]     Forsell, C. (1924). Economy and construction. Sunt förnuft, 4, 74–77.
[4]     Johnson, A. I. (1953). Strength, safety and economical dimensions of structures.
[5]     Freudenthal, A. M. (1956). Safety and the probability of structural failure. Transactions of the american society of civil engineers, 121(1), 1337–1375. https://doi.org/10.1061/TACEAT.0007306
[6]     Torroja, E., & Paez, A. (1949). La determinacion del coeficiente de securidad en las distintas obras. Instituto Tecnico de la Construccion e del Cemento.
[7]     Krohn, C. A., Nelson, A. C., & Thompson, W. J. (1966). Development of reliability methodology for systems engineering. Volume I-Methodology-Analysis techniques and procedures Final report.
[8]     Guild, R. D. (1968). Reliability Testing and Equipment Design Using Bayesian Models. Northwestern University.
[9]     Shinozuka, M., & Yang, J. N. (1969). Optimum structural design based on reliability and proof-load test.
[10]   CORNELL, C. A. (1972). Bayesian statistical decision theory and reliability-based design. International conference on structural safety and reliability (pp. 47–68). Pergamon. https://doi.org/10.1016/B978-0-08-016566-0.50006-2
[11]   Hilton, H. H., & Feigen, M. (1960). Minimum weight analysis based on structural reliability. Journal of the aerospace sciences, 27(9), 641–652. https://doi.org/10.2514/8.8702
[12]   Kalaba, R. (1962). Design of minimal-weight structures for given reliability and cost. Journal of the aerospace sciences, 29(3), 355–356. https://doi.org/10.2514/8.9434
[13]   Loh, H. T., & Papalambros, P. Y. (1990). A sequential linearization approach for solving mixed-discrete nonlinear design optimization problems. International design engineering technical conferences and computers and information in engineering conference (pp. 1–10). American society of mechanical engineers. https://doi.org/10.1115/DETC1990-0043
[14]   Youn, B. D., Choi, K. K., & Park, Y. H. (2003). Hybrid analysis method for reliability-based design optimization. Journal of mechanical design, 125(2), 221–232. https://doi.org/10.1115/1.1561042
[15]   Tu, J., Choi, K. K., & Park, Y. H. (1999). A new study on reliability-based design optimization. Journal of mechanical design, 121(4), 557–564. https://doi.org/10.1115/1.2829499
[16]   Maier, H. R., Lence, B. J., Tolson, B. A., & Foschi, R. O. (2001). First-order reliability method for estimating reliability, vulnerability, and resilience. Water resources research, 37(3), 779–790. https://doi.org/10.1029/2000WR900329
[17]   Zou, T., & Mahadevan, S. (2006). A direct decoupling approach for efficient reliability-based design optimization. Structural and multidisciplinary optimization, 31(3), 190–200. https://doi.org/10.1007/s00158-005-0572-7
[18]   Chen, X., Hasselman, T., Neill, D., Chen, X., Hasselman, T., & Neill, D. (1997). Reliability based structural design optimization for practical applications. 38th structures, structural dynamics, and materials conference (pp. 1403). American institute of aeronautics and astronautics, Inc. https://doi.org/10.2514/6.1997-1403
[19]   Kim, S. H., & Wen, Y. K. (1990). Optimization of structures under stochastic loads. Structural safety, 7(2), 177–190. https://doi.org/10.1016/0167-4730(90)90067-Y
[20]   Kim, H. Y., Shin, Y. K., Kim, S. Y., Shin, S. C., Chung, B. Y., Jo, J. H., & Kim, H. S. (2012). Structural design of small submarine pressure hull. Journal of the society of naval architects of korea, 49(2), 116–123. https://doi.org/10.3744/SNAK.2012.49.2.116
[21]   Yan, K. (2017). The abaqus/cae plug-in for premium threaded connection 3d parameter finite element model. [Thesis]. http://hdl.handle.net/10919/78245
[22]   Lubell, A. S., Prion, H. G. L., Ventura, C. E., & Rezai, M. (2000). Unstiffened steel plate shear wall performance under cyclic loading. Journal of structural engineering, 126(4), 453–460. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:4(453)
[23]   Kabiri Attabadi, A. (4879). Buckling of a submarine structural model: modeling and linear elastic buckling analysis under hydrostatic pressure. [Thesis]. https://b2n.ir/bk4155
[24]   Mahsuli, M., & Haukaas, T. (2013). Computer program for multimodel reliability and optimization analysis. Journal of computing in civil engineering, 27(1), 87–98. https://doi.org/10.1061/(ASCE)CP.1943-5487.0000204
[25]   Nowak, A. S., & Collins, K. R. (2012). Reliability of structures. CRC Press/Taylor & Francis Group. https://doi.org/10.1201/b12913
[26]   Ditlevsen, O., & Madsen, H. O. (1996). Structural Reliability Methods. Wiley. https://www.researchgate.net/publication/263047733