...类数学模型就是微分-代数方程组DAEs(Differential Algebraic Equations),也称 为欧拉-拉格朗日方程组(Euler-Lagrange Equations),与二阶微分方程组相比虽然其方程 个数较多,但系数矩阵呈稀疏状,形式简单方便计算机自动建立统一的模型进行处理。
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用这个拉格朗日方法,你是不能保证解出这个方程组的,你只能对着它想。
There is no general method for solving the equations that you get from this method. You just have to think about them.
对系统应用第一类拉格朗日方程,得到系统位形坐标的微分—代数方程组。
Apply Lagrange equation of the first kind to the system, and get a set of the differential - algebraic equations (DAEs) of its absolute coordinates.
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