约束的

The solution can't already behalf the real movement of the constraint multibody system so the default of the constraint equation must be restrained; On the other hand is how to turn the differential — algebra hybrid equations into the pure differential equations effectively.

得到的解已经不能表示约束多体系统的真实运动，所以必须对约束方程的违约进行抑制；另一方面是怎样有效地将微分—代数混合方程组化为纯微分方程组，运用求解微分方程组的计算方法求解。

A algorithm of searching and computing two adjacent polygons' closest distance based on restricted circle has been presented in this paper, that can be fitted for the situations of undistinguished shapes and location relationships of the two adjacent polygons.

本文提出了基于约束圆寻找并计算任意两个实体多边形之间的最近距离方法，并给出了约束圆的特征。这种方法适用于不用区分实体多边形的形状与位置的各种情况。

A study of the problem's model was made. To this problem, the models of single data transmission task and satellite data transmission task were constructed firstly. Based on these models, the model of this problem was constructed, and the object function and main constraints were analyzed especially. For solving the problem, a heuristic scheduling algorithm named double complex priority algorithm was presented and validated by an example lastly.

首先建立了单数传任务模型及卫星数传任务模型；然后在此基础上建立了问题的约束满足优化模型，重点分析了问题的目标函数及主要约束条件；为了解决该问题，最后提出了一个基于双综合优先度的启发式调度算法，并通过实例验证了算法的有效性。

Basing on the positional characteristics of double cusp s produced in the track of link points of planar four-bar linkage and combining with the synthetic equation of conventional track generator,the constraint equation set for the position of track generator that could realize two cusp s;and by means of successive elimination to obtain the most simplified forms of constraint equation set.

基于平面四杆机构连杆点轨迹产生双尖点的位置特性，结合常规轨迹发生器综合方程，建立了能实现双尖点的轨迹发生器的位置约束方程组，并经过逐次消元，得到了约束方程组的最简形式。

This algorithm constructs a set of linear equations. As a result, the relation of the reconstructed design variables and the original design variables is derived, the variable number of optimum design is decreased from m + n + 2 to 4, and the equality constraint optimization problem is converted into reduced- dimension no equality constraint optimization problem.

该算法通过构造一组线性方程，得到了由重构设计变量到原设计变量的映射关系，使优化设计的变量由原来的m + n + 2个减少到4个，并将有等式约束优化问题转换成降维的无等式约束优化问题。

The method of calculation of fiber model numerical value that established steel tube to restrain a ferroconcrete to control curved component part, use in computation follow the addition of load and increase steel tube to be opposite ceaselessly the restrains effect method of core concrete, numeric computation result and test result be identical are good.

建立了钢管约束钢筋混凝土压弯构件的纤维模型数值计算方法，计算中采用随荷载的增加而不断增大钢管对核心混凝土的约束效应的方法，数值计算结果和试验结果吻合良好。

Since the nonholonomic constraint constrains the time derivatives of the generalized coordinates of the system and does not reduce the degree of the system configuration freedom, the number of the dependent control inputs is less than the degree of the system configuration freedom, which leads to a difficulty in controller design.

由于非完整约束是对系统广义坐标导数的约束，它不减少系统的位形自由度，这使得系统的独立控制个数少于系统的位形自由度，给其控制设计带来很大困难。

Screw parameters in VGCN specified by tolerances in TN are expressed as inequation, which is inequation constraint in optimization of tolerance values.

研究了公差网络中的各公差对相应的旋量参数的约束不等式表示，从而构成了公差大小优化的不等式约束。

This paper gives the time domain integral constraints of the feedback control systems tracking error that arise from the presence of stable zeros on or near the jω-axis, which shows that for a linear time invariant system, in order to guarantee the stability of the closed-loop system, the time domain integral constraints must be satisfied by the tracking error.

本文给出了反馈控制系统接近虚轴或虚轴上的稳定零点对跟踪误差的时间域积分约束。这一时间域积分约束是任何一个线性时不变系统为保证其闭环系统的稳定性，其跟踪误差必须满足的。

This paper proposes a model for reactive power optimization considering UPFC based on the interior point algorithm .

基于内点优化方法，提出了计及UPFC的无功优化模型，以系统网损最小为目标函数，采用UPFC电压源模型，将其作用等效为一系列电压和功率的约束，直接放到内点法的约束中，在不同的负荷运行方式下进行了优化分析。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。