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College of Guandong Business, Guanzhou 510320, China)Abstract: Since large-scale vertical quench furnace is voluminous, whose working condition is a typically complex process with distributed parameter, nonlinear, multi-inputs/multi-outputs, close coupled variables, etc, dynamically decoupling control algorithm of temperature distributed parameter system in the furnace was presented, by which the whole system was decoupled to several subsystems and the implementation of controller was simplified. With finite difference approximation, the space and time step size was solved to ensure the convergency of finite difference approximation. After decoupling, the subsystems were controlled with self-learning PID control algorithm. The results show that the temperature control precision and homogeneity are improved; the overshoot and process in temperature rising period are reduced simultaneity.

摘 要:针对大型立式淬火炉体积庞大,工况复杂,炉内温度分布呈本征非均匀性,具有多输入/多输出、非线性、强耦合等特性,难以实现炉内温度高精度高均匀性控制目标等问题,提出一种温度分布参数系统动态解耦控制算法,其原理是:采用有限维逼近方法将对象解耦为多个独立的子系统,简化控制器的实现过程;通过分析有限维逼近方法的收敛性,获得保证收敛性的空间和时间步长应满足的条件;解耦后的子系统采用自学习PID控制算法,实现炉内温度高精度和高均匀性控制以及升温过程的快速性和小超调。

It contains boththe finite element equations and finite difference equations in one equation.

拟协调元法是广义协调方程的解,自然满足平衡对弱连续条件的要求。

There are many ways to analysis and computation of Mikthw's two rotations equation,finite difference method is the most one while using the finite difference method,a flood of data need be collected and computed.

而在目前高性能计算机系统中,最广泛使用的并行环境是MPI(Message Pass-ing Interface),它已成为一种并行程序的标准。

Maxwell's equations are replaced by a set of finite difference equation. If we solve it in time domain, we can get Finite Difference Time domain method.

从麦克斯韦方程出发建立地质雷达的数学模型,麦克斯韦方程可以转化成有限差分方程组,若在时域中对其求解就是时域有限差分方法。

The main contents of this course include: the construction, convergence, compatibility and stability of finite difference scheme of elliptic equation, parabolic equation and hyperbolic equation, the construction method and computation format of finite difference scheme of a system of partial differential equations.

本课程主要内容有:椭圆型方程的有限差分格式的构造,有限差分格式的收敛性,相容性及稳定性、抛物型方程的有限差分格式的构造,有限差分格式的收敛性,相容性及稳定性、双曲型方程的有限差分格式的构造,有限差分格式的收敛性,相容性及稳定性、偏微分方程组的有限差分格式的构造方法及有关的计算格式。

Then, the article derives finite element analysis equilibrium equation and element rigidity matrix in use of nonlinear finite element method.

然后运用非线性有限单元法推导了空间铰接杆单元的刚度矩阵和平衡方程。

Based on interval analysis and displacement finite element method, the static displacement response analysis of structure comes down to solve the interval finite element control equation.

现有的理论和方法采用区间分析和位移法有限元理论对其进行分析,最终归为位移法区间有限元控制方程的求解。

There exists t∈K, such that K/Fq is a finite separable extension, where Fq isa finite field with q elements, k = Fq is the rational function field over Fq.

存在t∈K,使得K/Fq为有限可分扩张,其中Fq为q元有限域, k = Fq是Fq上的有理函数域。

Using matlab to achieve numerical method of electromagnetic field inside the finite difference and finite element method.

利用matlab实现电磁场数值方法里面的有限差分与有限元法。

A series of orthogonal finite element function is presented by group method and finite element method.

正交函数由于其相互正交使得计算量大大地减少,历来为人们所关注,在连续函数中有著名的调和函数,离散分析中有正弦变换和。。。

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相关中文对照歌词
Finite
Limitations
Infinite Forms
All Time Lows
Domino Effect
Imagination
Both Sides Of The Gun
Cypher With Self
How Proud
Eighty-Five
推荐网络例句

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代,船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单,希望发动新暴动的人便寥寥无几。

Speak with contempt of none,form slave to king,the meanest bee,and will use,a sting.

别用 言词贬低任何人,无论国王还是奴隶。最卑戝的蜜蜂也会用它的毒针蜇人。