Abstract: Studying inland river navigationable condition by small scale ship-model is a advanced technology adopted to channel regulation． To ensure the test accuracy，the operation performance validity test has to take． The validity tests are often from dozens to hundreds,it leads to large workload during later period．The analysis accomplished by man previously，with low efficiency and bad accuracy，and easy lead to error. So the experiment data analysis taken over by computer is necessary.The ship model test accuracy and velocity would be improved．and the quality can be satisfied．

Key words: small scale slfip-model, Z modcl experiment, software

摘要： 用小尺度船模研究内河通航问题，是当今航道整治研究中采用的一项先进技术，为了保证船模试验研究质量 必须经常进行船模操纵性能率定，率定试验的组次常常高达数十组至数百组，这就使试验的后期分析工作量很大． 以前分析都是用人工完成，效率低，精度差，而且容易产生误差．为此，需要采用计算机代替人工对z形试验数据进 行分析，以提高率定试验的精度和速度，从而保证船模试验研究成果的质量．

关键词: 小尺度船摸, z型试验, 软件