文中利用连续二次积分法和虚功法很好地解决了这一问题。
And both the continuous double integral method and the virtual work method used in this paper can solve this problem well.
在二次积分模型的基础上，采用了采用了势能函数进行控制设计，该势能函数是基于电势场的概念提出的。
Based on the double integrator model, a control strategy is designed by using potential function which is proposed from the perspective of electric potential.
对线加速度计辅助惯性姿态角测量的误差分析表明，测量误差由加速度计噪声、二次积分离散化、信标噪声和加速度计频率特性误差组成。
The error analysis shows that the measurement error is caused by the noise of the accelerometer, discrete double integration, noise of beacon and frequency characteristic error.
本文给出在中国分类之下二次微分系统有中心时两种情况的通积分。
We give general integral of quadratic differential system with center in two cases under the Chinese classification.
本文研究了积分二次约束下具有混合摄动的不确定系统的鲁棒控制器设计问题。
This paper studies the problem of robust controller design for the systems with mixed uncertainties which are described by integral quadratic constraints and parametric perturbations.
在互易原理的基础上，得到了计入相邻目标二次散射的散射场的积分表达式。
The integral expressions for scattered fields including the second-order scattering terms are given based on the reciprocity theorem.
首先，建立了一个基于二次型项的积分不等式。
First, a new integral inequality based on quadratic terms is established.
对于具有控制积分不等式约束的二次型性能指标的经济系统给出了最优调节规律和最小的经济损耗。
Optimal regulation rules and minimum economic loss for economic systems with an integral inequality constraint on the control of quadric performance are given.
本文利用内潜奇点片的概念，提出了二次分布源强的三角形单元，进行绕任意三维物体的势流的计算，并得到了计算所需要的一系列积分公式。
This paper presents a method for evaluating the flow about an arbitrary three-dimensional body using the submerged patches of triangular elements with quadratic variation of source strength.
研究具有状态积分不等式约束的线性二次控制问题。
This paper deals with the linear-quadratic control problem with an inequality constraint on the state integration.
系统的性能函数是含有指数项和故障输入项的积分二次型函数。
The cost function of the systems is given in terms of integral quadratic function including both index exponent and failure controls.
减缩积分二次单元S8R5对于小应变薄膜弯曲问题的模拟能给出精确解。
Reduced integrated quadratic shell element S8R5 can provide accurate solution for small strain membrane bending problem.
相较线性元素，二次元素没有更多的积分点。
A quadratic element has no more integration points than a linear element.
夏鸾翔是晚清较早研究微积分的中算家，据其《致曲术》、《万象一原》，可知他在二次曲线求积问题上得到了比较全面的成果，有的已超过《代微积拾级》，某些成果近似近代的椭圆积分。
This paper discusses Xia's achievements on the integral problem about quadratic curve, some of which were similar to modern elliptic integral and surpassed the level of Dai-wei-ji.
夏鸾翔是晚清较早研究微积分的中算家，据其《致曲术》、《万象一原》，可知他在二次曲线求积问题上得到了比较全面的成果，有的已超过《代微积拾级》，某些成果近似近代的椭圆积分。
This paper discusses Xia's achievements on the integral problem about quadratic curve, some of which were similar to modern elliptic integral and surpassed the level of Dai-wei-ji.
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