摘要
针对研究复杂拓扑结构输水系统的水力振动特性时各个水力单元在连接后方程的处理复杂问题,从模块化出发,利用方程矩阵化的表示法,提出适用于任意水力系统的系统总矩阵的构建法和求解法。数值模拟测试结果表明,该方法能较为准确求解出系统的自振频率及在自由振动和强迫振动下系统的振动特性,通用性好,处理并联和环路系统简单,适用于编程语言开发。
On the study of hydraulic vibration of water delivery system with complex topology structure, it is very complicated when dealing with the formulas considering each hydraulic unit connection. In this paper, the theory is based on the concepts of modularity. The methods for the construction of the system matrix and its solution are proposed, which are suitable for any hydraulic system. The results of numerical simulation show that the natural frequency can be calculated accurately and the characteristics of free vibration and forced vibration can be described by the data. It is simple to deal with parallel and loop system. Moreover, it is convenient to conduct object-oriented programming to achieve numerical calculation.
出处
《水电能源科学》
北大核心
2011年第12期74-77,共4页
Water Resources and Power
关键词
拓扑结构
水力振动
总体矩阵
自由振动
强迫振动
topology structure
hydraulic vibration
overall matrix
free vibration
forced vibration
