Ship Structural Members Design and Optimization Based on Knowledge-Based Engineering

It is always pursued that the excellent ship structural members are rapidly designed and modified on the premise of ensuring security in ship engineering. In this paper, design and optimization method for ship structure based on knowledge-based engineering is put forward. Combining knowledge-based engineering with parametric technology, the knowledge base of ship structure design is established and 3D rapid optimal design is achieved. During the design, positions of ship structure components are driven by positional parameters. Scantlings of ship structural components are obtained by mother ships knowledge base and NURBS interpolation, according to rules requirements. Main structures are optimized by quantum-behaved genetic algorithm. Examples show that this method achieves knowledge accumulation and reuse, provides design results inspection, and realizes the obtainment of reliable ship structure.