船模快速性试验的分析计算系统及其应用

A Computer Program System for Powering Performance Prediction and Its Application

介绍交通部上海船舶运输科学研究所最近开发的船模快速性试验分析计算程序系统。该系统是在原ＶＡＸ机上使用的３套计算机程序基础上发展而来的，具有精度高、程序中各种选择可灵活组合、拟合插值量与试验点值之间的偏差和标准差可显示等特点。因此该系统比以往使用的计算程序更能适合船模试验委托方所提出的种种要求，是一个比较理想的程序系统。作为系统的应用，给出了阻力、敞水、自航中试验点处的标准差，其值可作为快速性试验在计算阶段引起的不确定度基础。另外用４条船为例，考察了计算中因不同选择引起的结果差异。本系统还能作为快速性预报应用软件中的一个功能模块。

This paper introduces a computer program system for powering performance prediction which has recently been developed in SSSRI on the bases of three former sets of programs used on VAX computer. This system has the advantages of high precision, multi choice in prediction calculation and the calculation of deviation and standard deviation between test points and the faired values. It is an ideal system which can meet the various requirements from customers of ship model testing. As some application, this paper gives the standard deviation at the test points for resistance, open water and self propulsion tests which can be regarded as a base of uncertainty analysis in calculation. Other calculations are also made for 4 ships with different choices in calculation to see the differences in prediction results. This system can also be used as a modul software in any comprehensive powering performance prediction method.