充水式橡胶坝状态参数的实时软测量研究

为了防止因坝体震动造成坝袋表面磨损及灾难性倒塌，提出了基于模型的充水式橡胶坝状态参数的
实时监测算法.通过流体静力学规律对橡胶坝进行分析，建立了无溢流情况下橡胶坝的静态二维模型.对此
模型进行无量纲化处理，使得对橡胶坝状态参数的监测转化为数学意义下标准的两点边值非线性微分方程
组的求解.采用数值方法“打靶法”，联立四阶Runge Kutta法和Newton Raphson法来求解此两点边值非
线性微分方程组，从微分方程组的解中获得要监测的状态参数.仿真结果表明，该实时监测算法可以清楚
地刻画出橡胶坝横截面的形状，且可以有效地监测橡胶坝参数.

Research on real-time soft measuring state parameters of rubber dam inflated by water

For preventing a dam's surface from abrasion and destructive collapse because of vibration, a model based algorithm of real-time measuring state parameters of rubber dam inflated by water was proposed. By applying static hydrodynamics law to analyze the rubber dam, a static two-dimensional model of rubber dam without outflow was set up. Nondimensional parameters were used to treat the static model, and the state parameter measurement of rubber dam was transformed in order to mathematically solve the relevant nonlinear differential equations with two point boundary value. A shooting method combined with four-order Runge-Kutta and Newton-Raphson method was used to solve this differential equations. The measured state parameters were obtained from the solution of the differential equations. Simulation results show that the developed real-time monitoring algorithm can distinctly depict the figure of the rubber dam and effectively measure the state parameters of the rubber dam.