Computer-Aided System for Parametric Design of Ship Hull Structures—CADS-Hull

Abstract

The problem of the parametric design of ship hull structures is considered here. The parametric design of ship hull structures is intended to determine the dimensions of structural elements that meet the requirements of regulatory documents (Rules of Classification Societies/Strength Standards). It is shown that, in all existing shipbuilding CAD-CAM systems, the problems of the parametric design of ship hull structures are essentially not affected. A modern methodology for the parametric design of hull structures is proposed, which defines a set of principles for the structural and logical organization of the design process, methods, and technical means for implementing design procedures. The most characteristic methodological principles of the parametric design of ship hull structures and other offshore engineering structures are identified: A systematic approach; modeling as one of the main methods for solving design problems; and a rational design strategy based on iterative search procedures that implement the methodological principle of successive complication of models and procedures for designing structures. The article considers the architecture and methodological foundations of the system for automated parametric design of ship hull structures (CADS-Hull), developed at the Saint Petersburg State Marine Technical University, Russia. The system is intended for use in design bureaus when designing civil ship hull structures on the basis of regulatory requirements of the Russian Maritime Register of Shipping and IACS General Rules in terms of large-capacity tankers, bulk carriers, and container ships.

About the calculation of turbulent flows in pipelines using in-line smooth-walled coatings

“…3. Для проектирования корпуса были использованы программы «Siemens-NX» [29] (Моделирование формы корпуса), «САПР-К» («Набор по Правилам»), разработанная в СПбГМТУ в рамках программы академического лидерства «Приоритет-2030» [30], «Rhinoceros» (3Dмоделирование конструкций) [31]. В программе «Siemens-NX» были построены опорные линии (шпангоуты, ватерлинии и т.д.…”

“…Как и ожидалось компоновка ТНПА, как соотношение длины к ширине и высоте, при ламинарном потоке идеальной жидкости позволяет рассчитать оптимальные с точки зрения критериев (23)(24)(25)(26)(27)(28)(29)(30)(31)(32)(33)…”

Editorial for Special Issue “Advances in Computer-Aided Technology”

“…The focus of the analysis was on how the monitored technological and physical impacts translate into achieving the required gun-drill life and the quality and dimensional accuracy of deep holes, as well as their overall impact on tool life [9]. The study by the authors Ryumin et al describes the development in the field of design of ship structures, focusing on the detailed description of an integrated system capable of performing both the design and modeling of the structure of merchant ships [10]. The paper by the authors Grozav et al proposes a study on the feasibility of implementing Deep Neural Networks for predicting the dimensional accuracy and the mechanical characteristics of components obtained through the FDM method using empirical data acquired by high-precision metrology [11].…”