论文部分内容阅读
典型泥沙年的选择在水利计算,特别是在泥沙研究中有着重要意义.目前一般是采用频率计算进行典型泥沙年的选择,其力学关系较为明确,物理概念也较清楚.然而,在同一年中,水量和沙量各特征值的经验频率不很一致(见表1),这给选择典型泥沙年带来了很大的不便,有时甚至达到了举棋不定的地步.模糊数学是一门崭新的学科,自1965年问世以来,已广泛应用于各个领域.本文利用模糊数学的知识进行典型泥沙年的选择,概念清楚,方法简单,便于实用.同时,本文为模糊数学在水利方面的应用起个抛砖引玉的作用.
The choice of typical sediment years is of great importance in the calculation of water conservancy, especially in the study of sediment.Nowadays, the frequency calculation is used to select the typical silt year, the mechanical relationship is clearer and the physical concept is clearer.However, In the same year, the empirical frequency of the eigenvalues of water and sediment is not very consistent (see Table 1), which brings great inconvenience to the selection of typical sediment years and sometimes even reaches indecisiveness. The new discipline has been widely used in various fields since it was introduced in 1965. This paper makes use of the knowledge of fuzzy mathematics to select the typical year of sediment with a clear concept and a simple method which is convenient and practical.At the same time, Application of a startling role.