Saint-Venant方程组Crank-Nicolson格式离散与学习控制建模
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引用本文:李光,戴喜生.Saint-Venant方程组Crank-Nicolson格式离散与学习控制建模[J].计算技术与自动化,2017,(1):6-11
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作者单位
李光,戴喜生 (1. 广西科技大学 电气与信息工程学院广西 柳州5450062. 智能综合自动化高校重点实验室(桂林电子科技大学)广西 桂林541004) 
中文摘要:研究了Saint-Venant方程组的Crank-Nicolson格式离散化并建立学习控制模型.首先给出了表示明渠流水流质量和动量守恒的Saint-Venant方程组,并线性化;其次,采用Crank-Nicolson格式进行离散,得到了无条件稳定的离散化方程组;最后通过离散化后得到的状态空间方程,建立了基于迭代学习控制的数学模型,为后续进一步研究算法的收敛性奠定了基础.
中文关键词:Saint-Venant方程  离散化  Crank-Nicolson格式,迭代学习控制
 
Crank-Nicolson Scheme for Saint-Venant System of Equations and Learning Control Modeling
Abstract:This paper concerned with Crank-Nicolson format discretization method for Saint-Venant equations, and building a learning control model. Firstly, Saint-Venant continuous equations were given, which with respect to open channel flow mass and momentum conservation, and linearization. Secondly, The Crank-Nicolson approach discrete for linearization of Saint-Venant equations was presented. Then unconditionally stable discrete equations were obtained. Finally, Mathematical model of the iterative learning control was established from state space equation, which have a sound theoretical basis for later study of convergence of the algorithm.
keywords:Saint-Venant equations  discretization  Crank-Nicolson scheme  iterative learning control
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