查询词典 numerical calculation

Combined with the surge-chamber ground swell calculation of some plants, get the numerical value of the influence of the superimposition and the superpose time; From the calculation of the plate pressure difference of the throttled surge chamber, analyze the numerical value of the influence of the superimposition on it.Chapter 5: Based on the analytic calculation of water hammer, indicate the linear pressure distribution in the diversion pipe system and the calculation operation of its maximum numerical value, combined with some project instances, analyze the the influence of the superimposition on it behind and before the surge-chamber.Chapter 6: Summarize the whole paper, and present the future research directions and emphasis.

结合具体电站的调压室涌浪计算，得到波动叠加带来的影响大小及叠加时间；并从阻抗式调压室底板压差的计算出发，分析波动叠加对底板压差的影响大小及叠加时间；第5章，在前人对水击压力的解析计算的基础上，阐述水电站引水发电系统中水击压力分布及其最大压力对应的计算工况，结合工程实例，分析调压室前后，波动叠加对沿程压力分布的影响及其大小；第6章，总结全文，提出今后研究的重点和方向。

The fixed assets are 78 million Yuan. The main equipment for mould is imported from abroad such as: Three coordinate numerical control milling machine imported from Japan, on set; large type the five coordinate milling machine typed dragon imported from Spain, sise (4000 x 2500), one set; three coordinate numerical control processing center size (2000 x 1000) imported from Spain, one set; powerful numerical control milling machine typed dragon imported from Taiwan, size (3200 x 2540), one set; five coordinate milling machine typed with five drift link movement imported from Italy, size (4000 x 2500), one set; Five faces numerical control milling machine HVM502T typed dragon imported from Taiwan, one set; numerical control scanning measuring machine imported from America size (5000 x 2438 x l824), one set. Others sophisticated equipment are made in China, such as numerical control cutting machine, planer typed dragon, pressing machine for research, total 16 set; advanced computer graphical working station, total 40 sets. The automobile cover has become into advantage, which is supplied various auto. Cover mould and cool Press mould to many big factories, such as: Jinan Auto. Manufacturing General Factory, Beijing Light-duty Auto. Manufacture Co., Changhe Auto. Manufacturing Factory, Shandonq Bulldozed General Factory, Jinan Diesel Factory, Qongdao Sifang Locomotive Factory, Dongfeng Auto.

该厂现有固定资产7800万元，用于模具制造的有日本引进的数控三座标铣床一台，西班牙引进的大型五坐标龙门仿形铣床一台（4000*2500），三座标数控加工中心一台（2000*1000），从台湾引进的强力数控龙门铣床一台（32O0*2540），从意大利引进的五轴联动五座标龙门铣床一台（4000*2500），从台湾引进五面体数控龙门铣床HVM502T一台，从美国引进的数控扫描测量机一台（5000*2438*1824）以及国产联高精尖的数控切割机，龙门刨床、研配压床等大型设备 I6 台套，高档计算机图形工作站40多台，在模具制造方面已形成制造汽车覆盖件模具的优势，产品质量达到国内先进水平，多年来为济南汽车制造总厂、北京轻型汽车制造有限公司，昌河汽车制造厂、山东推土机总厂、济南柴油机厂、青岛四方机车厂、东风汽车公司等大型骨干企业的产品更新换代生产制造了各种类型的覆盖件模具及冷冲模具，受到用户的好评，并建立了较稳定的供需关系。

Therefore, numerical analysis has been duly noted and come up with a variety of numerical integration, numerical differentiation, as well as the numerical solution of differential equations, the calculation of the volume comes down to basic computing, which laid the foundation of modern computer based on the numerical algorithm.

于是，数值分析受到了重视，研究出各种数值积分，数值微分，以及微分方程数值解法，把计算过程归结为巨量的基本运算，从而奠定了现代计算机的数值算法基础。

This paper analyze and study the influence of the superimposition in depth based on the previous achievements and combined with the theoretical qualitative analysis and project instances. The main contents as follow:Chapter 1: Indicate the significance and objective of this paper, review the previous achievements of the transient process and superimposition, and then present the study purpose of this paper.Chapter 2: combined with the physic knowledge of the fluctuation and the superimposition, Indicate the physical essences and the influence of the superimposition phenomena that exist in the diversion pipe system, and take one hydraulic turbine owning only one diversion tunnel and two hydraulic turbines sharing one tailrace conduit for instance to study out the numerical calculation superimpose operations.Chapter 3: From the calculation theory of the parameter of the guaranty calculation of regulation of the hydro-turbine, qualitative analyze the influence of the superimposition on them and the superpose time, combined with some project instances, get the numerical value of the influence of the superimposition and the superpose time.Chapter 4: Based on the previous achievements of the calculation and theoretical analysis of the surge-chamber ground swell, analyze the influence of the superimposition on it and the superpose time.

本文在前人研究成果的基础上，结合理论定性分析及工程实例，对波动叠加带来的影响进行深入分析研究，其主要内容如下：第1章，指出本文研究的意义和目的，回顾前人对水电站过渡过程及波动叠加方面的有关研究成果，在此基础上提出本文的研究内容；第2章，结合物理学中有关振动与波动叠加方面的有关知识，阐述水电站引水发电系统中存在的波动现象的实质及其影响，并以两机一洞和一机一洞具有上游调压室或下游调压室的水电站拟定其数值计算叠加工况；第3章，从机组调保参数的理论出发，定性的分析波动叠加对机组调保参数的不利影响及叠加时间，结合几个工程实例，得到波动叠加带来的影响大小及叠加时间；第4章，在前人对调压室涌浪进行计算和理论分析的基础上，分析波动叠加对调压室涌浪的影响及其叠加时间。

Some concepts about the reliability are described, and the method for calculating the reliability of system is provided by making linear substitution. While taking Stochastic Finite Element Method into the reliability calculation, a Nonlinear SFEM model is founded, and methods to resolve some problems in SFEM calculation are given. So as to the calculation of the force boundary, a method in FEM is provided for sabot pressure calculation, base of this, the numerical calculation model is carried out.

给出了弹丸发射强度可靠性计算中的一些理论和概念；给出了串联系统可靠性的逐步线性等效计算方法；将随机有限元方法引入可靠性计算中，建立了弹丸发射时的非线性随机有限元计算模型，并给出了计算中的一些问题的处理方法；在随机有限元的载荷边界的计算中，提出了弹带压力的有限元计算方法和在有限元求解思想上的数值计算模型。

This paper has done a deeply research on the evaluative method, which focus on maintaining and ensuring the camion. After deeply analyzing the maintain theory of army equipment and the stratagem 's characteristic and combining the current systems engineering evaluating theories and methods, it has analyzed and solved all limitations that coming forth when a single model is used to evaluate the maintain capacity. After analyzing and ameliorating the judgment of AHP's coherence, the calculation of the expert power value and the optimizing of the more-extreme judging model, a new calculation method, the multidimensional complex calculation theory, is presented, which much fits for the evaluative calculation of the camion. The new theory's feasibility and the evaluation's reliability have been proved in theory in this paper. This paper also analyses the principle and the program, which is about building a camion evaluating system. According to the multidimensional complex calculation theory, an evaluative model has been built. Applying the levels analytical method, this paper fixes on the calculation of every target's power, brings the optimization allot precept of macro spatial resource, optimizes the resource of the maintainability of theater of operations' vehicle, which offers a theory foundation for optimizing of the resource space. The research not only brings out a uniform standard for the evaluating of the maintain ability of the camion, but also presents a theory foundation and method for perfecting the camion maintain system.

本文对军用车辆维修保障能力评估的方法论进行了深入研究，在理论上通过对军事装备维修理论及战略特性的深入剖析，结合现有系统工程评估理论、评估方法的特点，分析解决了应用单一模型评估装备维修能力问题的各种缺陷，就AHP法判断矩阵一致性判定，群策专家权重值的确认及多元评判模型的优化进行了研究和改进，形成了适应军事车辆维修保障能力评估应用的新算法--多元复合算法理论，对这一创新评价理论的科学性及评估可靠性进行了理论证明和算法应用；研究分析了建立军用汽车维修保障能力评估指标体系的原则和程序，并按照多元复合算法的理论，建立了车辆维修保障能力评估模型；应用层次分析法的原理，明确了各指标权重的算法，提出了宏观空间维修资源优化分配方案，优化了战区车辆装备维修能力资源空间，为某一具体车辆装备维修能力形成所需维修资源空间的优化提供了理论依据；本文的研究既为军用车辆装备维修保障能力评估提供了统一的衡量标准，也为军事装备维修保障系统的进一步完善提供了理论依据及方法手段。

Main research works are as follows:(1) Numerical simulation of turbulent flow and combustion in power plant furnace (2) Numerical simulation of fire spread and crown fire in forest fire behave (3) Numerical simulation of burning process of large space building (4) Numerical simulation of three-dimensional fluid flow of satellite cabin in microgravity environment (5) Numerical simulation of burning process of multi-rooms It shows that the ability of FAC3 and FZ code is strong and the code is widely used for practical problems.

研究工作主要涉及以下几个方面：（1）电站煤粉锅炉流场的数值分析（2）林火行为中火蔓延和树冠火等特性的数值研究（3）大空间建筑火灾烟气流动过程的数值分析（4）微重力条件下卫星密封舱内部流场的数值分析（5）多室火灾过程的数值分析研究工作表明，FAC3和FZ程序的功能较强，通用性较好，可对多种热过程现象进行数值模拟，在一定程度上讲，即可用于科学研究，又可用于实际工程问题，并具有广泛的应用前景和推广价值。

After the graduation, once in the LG electron, the Sumitomo heavy machinery, sew companies and so on equipment transmission, Kenner metal worked, six year numerical control processing and programming's work experience, to the numerical control vehicle, outside the machining center, the numerical control the garden rubs, the numerical control five axes to rub has the rich experience, to cutting tool's and so on drill bit, milling cutter production process flows and the programming has the senior experience, the numerical control technician title.

毕业后曾在LG电子、住友重机械、sew设备传动、肯纳金属等公司工作，六年数控加工及程序编制的工作经验，对数控车、加工中心、数控外园磨、数控五轴磨有丰富的经验，对钻头、铣刀等刀具的制作工艺流程及程序编制有资深经验，数控技师职称。

Mastercam9.0 numerical control system first makes the NCI files according to graph and processing information. But NCI files can not transmit directly to numerical control machine tool, it cant control numerical control machine tool normally by special post processing programme of all kinds of numerical control system until it transforms NCI files to NC files received and identified by numerical control system.

采用MasterCAM9.0进行数控加工时，首先根据图形信息和加工信息生成NCI文件，但NCI文件不能直接传送给数控机床，还必须通过各数控系统专用的后置处理程序，将NCI文件转换成数控系统可以接受和识别的NC文件，才能控制数控机床正常工作。

The numerical model of non-linear wave in harbor, including the non-coupled and non-linear wave numerical model, the numerical model combined Boussinesq equations with Laplace equation and the coupled numerical model combined Boussinesq equations with Euler's equations, are studied.The studies on non-coupled and non-linear wave numerical model are following.

本文分别以Boussinesq方程，二维和三维Laplace方程，欧拉方程和牛顿第二定律作为基本控制方程，分别从非耦合非线性波浪计算模型(指单独采用一个计算模型：本文指Boussinesq方程，或边界元法解Laplace方程，或有限元法解Laplace方程)、Boussinesq方程与Laplace方程耦合计算模型、Boussinesq方程与欧拉方程耦合计算模型三个方面对港口非线性波浪计算模型展开了研究。

In addition, the density of composite matrix could be controlled by altering the densifier addition to match the requirement of varying fluid velocity and expansion factor in expanded bed.

复合层析基质的柱层析行为表明：大孔型基质的洗脱峰形明显改善，柱压小，适合于高流速的固定床和扩张床层析；扩张床内可形成稳定的分级分布，符合扩张床吸附要求；可根据具体需要，调节碳化钨添加比例来优化操作流速和床层扩张率。

Lycium chinense Extract can also cure diabetes, is expected to develop diabetes as the use of food additives.

枸杞提取物还可治疗糖尿病，可望开发出作为糖尿病患者的食品添加剂使用。