中国舰船研究2024，Vol.19Issue(z2)：11-19,9.DOI:10.19693/j.issn.1673-3185.03699
基于面元法的舰船不沉性计算方法研究
Ship unsinkability calculation approach based on panel method
袁奕 1王涛 1郭理想 1魏骁1
作者信息
- 1. 中国舰船研究设计中心,湖北 武汉 430064
- 折叠
摘要
Abstract
[Objective]As the ship unsinkability calculation method based on two-dimensional slicing has such problems as limited modeling ability and insufficient applicability to complex ship types,this study pro-poses a panel method-based ship unsinkability calculation technique based on a three-dimensional fully-appen-ded ship model.[Methods]Adopting a discrete three-dimensional triangle panel model,the normal direc-tions of the ship panels and damaged compartment are set opposite each other so that their buoyancy cancels each other out and causes buoyancy loss.A watershed transformation algorithm is used to achieve the match-ing of wetted surface panels in any floating state.Based on the Gaussian formula,the integration of displace-ment volume is transformed into the integration of wetted surface area,and the displacement volume and wa-ter plane elements are further solved through the panel projection integration method.Newton-Raphson meth-od is then used to calculate the floating state of the damaged ship and conduct an unsinkability evaluation.[Results]Taking the Wigley numerical ship model and standard ONR(Office of Naval Research)tumble-home(ONRT)ship model as examples,the accuracy of the algorithm is verified and an unsinkability evalu-ation is conducted for the ONRT fully-appended ship model.[Conclusion]The calculation example shows that the proposed method has reliable calculation accuracy,strong applicability to complex ship types and practical engineering value.关键词
水面舰船/不沉性/面元法Key words
surface warship/unsinkability/panel method分类
交通工程引用本文复制引用
袁奕,王涛,郭理想,魏骁..基于面元法的舰船不沉性计算方法研究[J].中国舰船研究,2024,19(z2):11-19,9.
