模图

In this method,the Archimedes spiral was adopted as channel midline which could be generated by programmer in the process of modeling,and the original wooden patterns and the area change rule of channel could be modified,so that 3-D design of double-channel impellers could be implemented.

在该设计方法中，采用阿基米德螺旋线为流道中线，在造型过程中编入程序生成流道中线，并对原木模图和流道面积变化规律进行修正，实现对双流道式污水泵叶轮的三维设计。

Based on solution from tension equation for load carrying rope used in cable ways and cable cranes, present paper introduces a way of making homograph of tension of load carrying rope, as well as examples of its application.

承载索张力计算；诺模图；本文根据架空索道、缆索起重机承载索张力方程的解，介绍承载索张力计算诺模图的编制及其应用实例。

In general, the design work with traditional measures is done by hand, which cannot meet the needs of the technology and manufacture. So the author has developed a CAD hydraulic design software fit for lower specific speed axial flow runner, which is easily operated by users.The main research work of this paper is as follows:1 Analyzing the main reason of axial flow power station cannot work well under littler volume of flow in some season and putting forward an improving scheme, pointing out the characters of design under abnormal factors.2 Combined with the development of the industry in our country, the abnormal hydraulic design method of propeller turbine is discussed based on present literature, data and experiment results.3 Guided by the design method of software engineering, a suit of hydraulic design software of Lower Specific Speed Axial Flow Runner is programmed by the object-oriented programming language Visual Basic and a straightforward, concise and standard Windows human-computer dialogue interface is designed for the system, which makes the operation of the system very convenient.4 ActiveX Automation technology is adopted as the interface with AutoCAD and the hydraulic drawings are edited, modified by AutoCAD until hydraulic model drawings according with the demand of engineering practice are output.5 To resolve practice problem, the author has designed a lower specific speed axial flow runner for Duowa Power Station through an example.

论文的主要内容有：1 深入分析很多轴流定桨式水电站枯水季节小流量下不能发电的主要原因，提出减容改造方案，并指出超常规条件下的改造设计特点。2 结合国情及行业发展需要，参考现有资料、文献和前人的研究成果，进行低比转速轴流式转轮叶片水力设计方法的研究，对轴流式转轮叶片的奇点分布法水力设计进行了全面的探索，结合现代计算机技术，找到了一种针对特殊条件的轴流式转轮叶片水力设计方法。3 仔细比较多种AutoCAD二次开发工具后，结合本课题的特点，选用Visual Basic语言，综合应用软件工程的设计思想，进行低比转速轴流式转轮叶片水力设计软件的编制，为系统设计了直观、简洁和标准的Windows人机对话界面，便于用户操作；编程时在考虑到设计条件特殊性的同时，尽量做到程序的通用性，使之可用于解决同一类问题；另外，大部分程序还可移植到普通轴流式转轮叶片水力设计中，具有良好的适应性。4 利用ActiveX Automation技术与AutoCAD接口，对AutoCAD进行二次开发，在AutoCAD下实现水力图的自动生成和编辑，直至输出符合实际工程要求的木模图。5 通过算例，为多哇水电站设计了一个低比转速轴流定桨式转轮，解决其在枯水期小流量下不能发电的问题。

The necessary charts and tables for the nomogram prediction method are provided.

介绍了用诺模图法预报登陆台风引起最大风暴潮增水的基本思路，给出了较为详尽的诺模图建立过程和方法，提供了进行诺模图法预报计算所必需的图表。

Firstly,the key data are obtained from the nomogram,then temperature warp stress coefficient Cx and integration temperature stress coefficient Bx are determined by interpolation.

0引言综合温度应力系数Bx是由设计人员手工查诺模图确定的，导致温度应力的计算结果不唯一，增大了人为因素对设计结果的影响。

The analogue results obtained from the water turbine in Gezhouba have been used by the author in his evaluation of the vibration characteristic of turbine blade and a nomographic chart indicating the relationshi...

作者将葛洲坝水轮机叶片模态分析结果，应用到叶片振动特性的估价中，绘制了转速及其派生的频率，卡曼涡频率与叶片固有频率关系的诺模图，可供设计参考。

There are not algebraic formula for solution of the5- n algebraic equation, Thispaper presents a soluted method of nomography. With this method all real roots can beobtained quickly.

五次代数方程不存在求解的代数公式，文中提出了利用诺模图求解方法，可以快速地求出方程的全部实根。

Mainly supply imported and famous-brand special steel,including ASSAB、BOHLER、HITACHI、DAIDO、SINTO、SAARSTAHL、BUDERUS、ALLEGHENY LUDLUM 、BRUSH WELLMAN、ALCOA and domestic special mold steel, copper, aluminum, and non-metal materials from large scale special ste钢材价格走势图el enterprise. We have enough inventory of cold-working steel, heat-working steel, plastic mold steel, and powder steel, etc, a full series of top quality mold steel, to supply to large and medium enterprise,moreover,we offer 24 hours cutting and quick delivery service,Besides,we offer 6-sides mill processing for gloss and fine plates,heat treating, and other service, too.

主营进口特殊钢，销售品牌有瑞典ASSAB、奥地利BOHLER、日本HITACHI、DAIDO、SINTO、德国BUDERUS、美国ALLEGHENY LUDLUM、 BRUSH WELLMAN、ALCOA及国内大型特钢企业生产的特殊模具钢、铜、铝、及非金属用材，品种齐全，现货供应，备料充足，为各大中企业客户提供冷作钢、热作钢、塑模钢、粉末钢等全系列高品质模具钢种，而且提供24小时锯料及每天快捷发货服务；另提供六面铣的光、精板铣磨等精机加工，材料热处理等一条龙服务、一体化保证。

The dual three-point interpolation algorithm and the dual interpolation algorithm were chosen to perform the interpolation calculation in the nomograms or tables.

选用二元三点插值和二元全区间插值法进行诺模图／表的插值计算，并用C++语言编写了计算机程序，选用一个算例进行了校验计算。

The distuibution of axial plane stubs and stub crossing points are non-uniform and quantity of them is not equal when the blade is made by using traditional design method of turbine. These are not benefit with calculating wood model and drawing. In this paper, to make blade wooden patterns is using blade mean camberline. This makes the wooden patterns meet the demand of the design and meet the shape of the runner blade. And this can agree with requirements of hydro and mechanical analysis and making the model of blade by using the numerical control machine. It has reference value to whole design of turbine.

针对传统方法设计水轮机叶片时，获得的轴面截线和截线交点疏密不均、个数不等、不利于叶片木模的计算和绘形的缺点，文中利用叶片叶型骨线数值生成叶片木模图，使新的木模图能够更好的体现设计要求和符合实际转轮叶片的形状，并能满足进一步的水力和机械分析以及数控机床制作模型叶片的需要，对水轮机的整体设计具有参考价值。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。