给定约束条件 meaning in Chinese
specifying constraint
Examples
- A new method for determining knots to construct polynomial curves is presented . at each data point , a quadric curve which passes three consecutive points is constructed
一般认为，在满足给定约束条件的前提下，一条曲线具有的应变能越小，则该曲线的形状就越好。 - The values obtained from the optimum calculation are compared with that from the conventional calculation , and the result shows that , by means of the optimum design , under the given restrains , the pipe heat exchanger can operate well with a reduction of over 25 % heat transfer area
实例优化计算结果与常规计算结果的比较表明，优化设计可使管式换热器在满足给定约束条件下，节约25 %以上换热面积，提高管程和壳程的流速，从而提高传热系数，最终得到操作、能耗和投资等方面的最佳经济结构。 - A full mathematical model of optimal flow pattern design withengineering constraints was put forward , based on modern optimal control theory . an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine . according to integral optimization of turbine stages , a full physical model and mathematical expression were put forward for proposition of optimal flow pattern , including all performance parameters in turbine stages . this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state , fixed terminal condition and constraints for part of state terminal variables . the program was also worked out according penalty function method and conjugate gradient method . the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最优控制论方法引入轴流透平叶片的设计，在优化的轴流透平子午通道内，建立包括透平级内所有性能参量的最优流型命题的完整的物理模型及其数学表达式，并归化为一个在给定初始状态、自变量终端固定、部分状态变量终端受有约束的条件下，使级的某一性能指标（如级的功率）达到最优的最优控制问题，应用“代价函数法”及“共轭梯度法”编制计算程序，计算得到符合给定约束条件、并使目标函数取极值的最优环量分布，结果是令人满意的。 - An original mesh generation method based on the nc track points of tool surfaces is proposed here , the method can automatically generate meshes consisting of only quadrilateral elements , which is desirable for better accuracy and efficiency of simulation . besides , an automatic local coarsening algorithm for structured quadrilateral meshes is also developed . for arbitrary discrete points on auto body surfaces , an automatic triangulation method is adopted and a series of mesh optimization methods with given constraint conditions are proposed
创新地提出了基于模具型腔表面nc数控轨迹点的全自动四边形网格生成算法，提出了结构化四边形网格局部自动优化算法，研究了基于车身曲面离散点的三角形网格自动生成算法，并提出了给定约束条件的三角形优化算法，探讨性地研究了基于模具曲率半径的板料初始网格局部自动细化算法。