分布参数

Carburizer is a nonlinear system with time variation and distributed parameters and it is difficult to describe its characteristics by precise mathematic model.

文章摘要：渗碳炉是一个非线性、时变和分布参数的系统，用精确的数学模型表示其特性较为困难，将带有自整定功能的模糊控制算法引入传统的渗碳炉温度控制系统。

Mathematic model of the refrigeration system is presented with applying the distributed parameters method. In the models of condenser and evaporator, the flow patterns and its effects on the heat transfer coefficients of refrigerant side are considered.

采用分布参数的方法建立了制冷系统的数学模型，在建立冷凝器和蒸发器两相区模型时采用了分相流模型，并考虑了流型变化对制冷剂流动换热过程的影响。

The main task of this dissertation is analyzing and solving the vibration of fluid power pipe system of aircraft with the approach of theory research and practice testing.

建立了适合于工程应用的流体管路分布参数精确模型，给出了飞机液压能源系统管路合理布局的一般原则。

Tolerance analysis aims to explore the effection of divided link on sum link, namely how to ascertain the assembled sum link"s tolerance if knowing all divided link"s dimension, tolerance and distribution parameter.

公差分析研究组成环对封闭环的影响，即已知各组成环的尺寸、公差及分布参数，确定最终装配后的封闭环公差。

In this paper, a transfer function problem of second-order linear DPS is studied.

本文研究了一般二阶线性分布参数系统的传递函数问题。

Positive, negative and zero sequence components form transfer matrix and the fault calculation of EHV double circuit can be realized. Distributed transmission line model was adopted in the algorithm and the algorithm has higher accuracy.

利用正序、负序和零序分量构成转移矩阵，实现同杆双回线任意故障的计算，算法采用分布参数的线路数学模型，具有较高精度。

The offered simples can not completely accorder with the assessment model, so the error was regarded as the object function, and the optimum probability assessment model was presented. In order to optimize the model's distribution parameter, the improved genetic algorithm was adopted.

对原始数据在评估模型中产生的误差作为目标函数，建立概率评估优化模型并采用改进遗传算法对分布参数进行优化计算。

Results have shown that the predictions of statistic fracture with the distributional parameters determined by m...

结果表明，具有由微观途径确定裂纹分布参数的统计断裂的预测与实验观察值相符。

This scheme can be applied to flow field computation of nonviscous or viscous flow, laminar or turbulent flow and compressible or incompressible flow.

本文首次提出了基于分布参数最优控制理论、雷诺平均N—S方程的平面叶栅反问题的普遍形式——最优化设计的理论和方法。

In the first chapter we retrospect the development of the distributed parameter system, then introduce Arctic sea ice and the achievements of some researchers in this specifical domain.

本文第一章回顾了分布参数控制理论的发展情况，同时简单的介绍了北极海冰和一些在海冰研究领域内的国内外学者所取得的成果。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。