系统聚类分析法在喷头射程公式验证的应用  

Application of System Clustering Method in Verification of Sprinkler Nozzle Range Formulae

作　　者：王波雷[1] 马孝义[1] 郝晶晶[1] 

机构地区：[1]西北农林科技大学旱区农业水土工程教育部重点实验室,陕西杨凌712100

出　　处：《中国农村水利水电》2008年第10期72-74,78,共4页China Rural Water and Hydropower

基　　金：国家科技支撑计划课题(2006BAD11B04);国家自然科学基金资助项目(50479052);西北农林科技大学青年学术骨干计划资助课题

摘　　要：将系统聚类法引入喷头射程计算公式的预测分析及其分类研究中,判别各个公式的优劣性,最后通过试验检验所得结果,表明分类结果较为合理。通过分析计算认为5个常用公式可分为3类:依次为Cauazza公式、冯传达公式、干浙民公式计算值为第一类;第二类为加维林公式计算值;常文海公式计算值为第三类,其中第一类与实测值最为接近。该方法既实现了公式的定量评价,又克服了因检验资料数值差异较大而引起的误差,也为其他领域的公式分类提供了一种有益参考。The sprinkler range is one of the key indexes for the sprinkler nozzle. There have many formulae to simulate and forecast the sprinkler nozzle range. But how to judge the formulae is a key issue. This paper involves the clustering analysis method of classi- fying five usual sprinklers. The system clustering method is simply introduced. The classification is reasonable. The formulae are classified by their deviation from the experimental data and assessed based on their advantages and disadvantages. The five formulae can be classified three kinds. The formulae suggested by Cauazza and Feng Chuanda and Yu Zhemin are the best. This is a contribution to other fields.

关 键 词：喷头射程 系统聚类法 公式检验 

分 类 号：S458[农业科学—植物保护]