摘要
针对评定潜艇肋骨初挠度时寻找评定中心不准确的现状,本文利用全站仪进行测量获取母线划分点的二维坐标,并采用评定圆度误差的4种方法的拟合圆心作为初挠度的评定中心对其初挠度进行评定。试验结果表明,最小区域圆法评定精度最高,最小外接圆法和最大内接圆法的评定精度次之,最小二乘圆法评定精度最低。不同的工况可以选择适合的方法,可以提高潜艇耐压结构的建造效率与质量。
In allusion to the inaccuracy in location of the evaluating center when calculating the submarine pressure-hull structure radial initial deflection, based on acquiring the generatrix partition point spacial coordinate by using total station machine,initial deflection is evaluated with respect to the evaluating centers which are fitted with the four roundness error evaluation methods. Experiment data shows that the minimum zone circle method has the highest evaluating precision while the least squares mean circle method has the lowest. Choose the suitable method for different work condition can improve efficiency and quality in submarine pressure-hull structure manufacture.
出处
《舰船科学技术》
北大核心
2013年第1期42-45,135,共5页
Ship Science and Technology
关键词
耐压结构
径向初挠度
评定中心
最小区域圆
最大内接圆
pressure-hull
structure
radial initial deflection
evaluating center
minimum zone circle
maximum inscribed circle
