Development of multi-functional integrated design system for ship block lifting process
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초록
In order to solve the integration problem of lifting point layout, 3D dynamic simulation and safety assessment, a multi-functional integrated design system for ship lifting process is developed. Based on the discrete data extracted from AM model (The three-dimensional ship block created through AVEVA Marine), lifting process information and lifting equipment information, this paper develops an automatic design module with the optimization algorithm of lifting point layout as the core, and retains the interactive design module. To solve the problem of automatic finite element mesh generation, the proposed system uses the highly reliable AFT-Delaunay algorithm as the finite element mesh generation algorithm. In addition, the proposed system combines the control algorithm, unit calculation and constitutive calculation extension interface to build a finite element analysis framework. Taking the deck block of a crude oil tanker as an example, this paper compares the functions of commercial finite element software MSC.NASTRAN and the proposed system in the finite element calculation results, mesh generation and finite element visualization. The comparison results shows that the proposed system has reached a level comparable to MSC.NASTRAN in the safety evaluation of block lifting.
Abstract
In order to solve the integration problem of lifting point layout, 3D dynamic simulation and safety assessment, a multi-functional integrated design system for ship lifting process is developed. Based on the discrete data extracted from AM model (The three-dimensional ship block created through AVEVA Marine), lifting process information and lifting equipment information, this paper develops an automatic design module with the optimization algorithm of lifting point layout as the core, and retains the interactive design module. To solve the problem of automatic finite element mesh generation, the proposed system uses the highly reliable AFT-Delaunay algorithm as the finite element mesh generation algorithm. In addition, the proposed system combines the control algorithm, unit calculation and constitutive calculation extension interface to build a finite element analysis framework. Taking the deck block of a crude oil tanker as an example, this paper compares the functions of commercial finite element software MSC.NASTRAN and the proposed system in the finite element calculation results, mesh generation and finite element visualization. The comparison results shows that the proposed system has reached a level comparable to MSC.NASTRAN in the safety evaluation of block lifting.
참고문헌 (23)
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