过程控制

Analysis on the balance of the production capacity and its burthen focuses on the sewing process according to t...

通过性能的分析比较把最适合的优化方案运用于生产实践，在实践中动态的控制针织服装生产过程、质量和成本，得出现代针织服装生产过程管理、优化和动态控制的实用规则与经验，从而指导实际生产，提高企业的生产管理与市场竞争力。

With the interpolation principle of high precision multi-layered neural network, a closed-loop control method for swing-up process of circular rail inversed pendulum is investigated based on the optimized open-loop control law.

摘要在圆轨倒立摆摆起过程开环控制律优化算法的基础上，应用高精度多层人工神经网络插值原理，研究了摆起过程的闭环控制方法。

A close-loop control system including cutting process control was designed to accomplish adaptive control of constant force cutting process .

针对恒力切削过程自适应控制，设计了包括切削过程的闭环控制系统。

Include studying the effective of the test, discussing the course of control and logical sequence.

包括对试验有效性进行分析，并对试验结果出现的控制过程及逻辑控制过程出现问题进行深入的探讨。

The thesis can be divided into five parts as follows: First, the structural characteristics of finned-pipe evaporator are analyzed. After selecting suitable microelement controller, the heat-transfer and mass-transfer processes are analyzed for every microelement under the conditions of dryness, wetness and frostiness. Based on previous equations, some parameters of frostiness are confirmed and the frost-growing model is set up under frost condition. Some hypotheses are postulated and with the help of the equation of mass-conservation, energy-conservation and momentum-conservation, the evaporation model which fits in the dynamic simulation is built, which set a solid foundation for system simulation. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. Third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet-parameter on evaporator. Fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio-parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping.

本文的主要内容如下：1对翅片管蒸发器结构特点进行分析，选取适当的微元控制体，就干、湿和霜工况下对每个微元分别进行传热传质分析，基于经验关系式确定霜的有关参数，对于霜工况下的霜生长建立模型，经适当假设，运用质量守恒、能量守恒和动量守恒方程建立适合动态仿真的蒸发器数学模型，为系统仿真奠定基础； 2对蒸发在大扰动下的开、停机过程，运用动态集中参数模型进行分析和计算，为更好地描述制冷系统运行的全过程奠定基础，同时也为制冷系统实现自动控制提供一定的理论基础； 3对蒸发器正常运行过程，运用动态分布参数和参数间定量耦合的观点来分析和计算，为更好地了解稳态工况下各点参数的变化情况及各入口参数对蒸发器动态特性的影响即蒸发器性能对各参数变化的敏感性； 4编写翅片管蒸发器动态特性仿真计算程序，可以计算不同边界条件和初始条件下的制冷剂热力参数、空气温湿度和霜厚度分布场，实现对翅片管蒸发器在干、湿和霜工况下的动态仿真。

Its work principle is to make use of new-style DAC, operation amplifier and dynatron and so on to construct invariance current circuit controlled by program, and reso...

介绍了方案的工作原理，根据光学特征点———红外发光二极管的光学特性，运用新型D/A转换器、运算放大器及三极管等构成可程序控制的恒流源电路，解决了发光二极管控制过程中的电流调整困难、工作过程中发热、管耗高等问题。

The paper mainly introduced quality analyses and control of water wall economizer of boiler heating surface in course of manufacturing,and the key process quality control method of boiler product.

介绍锅炉受热面膜式省煤器等产品在制造过程中内在质量的分析与控制及锅炉产品制造过程中关键工序质量的控制方法。

The paper mainly introduced quality analysese and con tr ol of water wall economizer of boiler heating surface in course of monufacturing , and the key process quality control method of boiler product.

介绍锅炉受热面膜式省煤器等产品在制造过程中内在质量的分析与控制及锅炉产品制造过程中关键工序质量的控制方法。

From the viewpoint of large system dynamics including rockets, gun, propellant and launch environment, the whole process of LRMLRS from the ignition to level point is deeply studied by three ways, that is theory, computation and experiment, in this paper.

远程多管火箭动力学是研究远程多管火箭在发射与飞行过程中的受力及运动规律和控制过程，进而研究控制其受力与运动的理论、技术和试验测试方法。

Such as dynamic model, parameters estimation, interposition, application steps and so on.

第五章，小批量生产过程中的使用统计质量控制方法所面临的突出问题是如何充分利用有关过程的信息（包括客观的历史数据和主观的经验与判断），本章提出了应用贝叶斯预测理论的动态质量控制方法，详细研究了这一方法的动态建模、参数估计、模型干预及实施步骤，进行了计算机仿真试验和应用研究。

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。