中国舰船研究Issue(6)：39-42,58,5.DOI:10.3969/j.issn.1673-3185.2014.06.007
基于非线性三维直角坐标转换的耐压壳体径向初挠度测量算法
Calculation Method of Pressure Hull Radial Initial Deflection Based on Nonlinear Rectangular Coordinate Transformation Method
摘要
Abstract
A method based on six-parameter rectangular coordinate transformation which is propitious to measure submarine's pressure hull radial initial deflection is presented. It resolves the problem that tradi⁃tional seven-parameter bursa mathematical models are unsuitable for large-rotation-angle cases and rely most on the initial value that could lead to large coordinate conversion deviance. To do so, the six-parame⁃ter rectangular coordinate model is first adopted to be derived on the basis of complete coordinate transfor⁃mation formulas. Then, the computational process is enhanced with the improved Gauss-Newton method. Finally, the proposed method is realized by the MATLAB program. Using the analog data and actual project data, a comparison between the traditional bursa mathematical model verifies the accuracy and stability of the proposed algorithm.关键词
坐标转换/bursa模型/耐压壳体/径向初挠度/六参数模型/改进的高斯-牛顿法Key words
coordinate transformation/bursa model/pressure hull/radial initial deflection/six-parameter model/improved Gauss-Newton method分类
交通工程引用本文复制引用
刘序辰,彭飞,朱志洁,李宁..基于非线性三维直角坐标转换的耐压壳体径向初挠度测量算法[J].中国舰船研究,2014,(6):39-42,58,5.基金项目
海军工程大学自然科学基金资助项目 （）
