型线

随着近年来NURBS及其配套技术的迅猛发展，船体曲面也纷纷采用了NURBS方法来进行表达，型线设计也转向NURBS的建模方式。

With the rapid development of NURBS and its supporting technologies in recent years , the ship hull is expressed by NURBS method one after another . The design of molded lines turns to the NURBS modeling , too .

本文是计算机辅助常规潜艇数学型线生成的一次尝试性的研究。

Results of a tentative study on mathematical molded lines for a conventional submarine is presented .

非对称式N次谐波顶置凸轮型线设计

The design of unsymmetrical OHC cam with nth - degree harmonics

叶片型线光顺的B样条法

A B-spline method for smoothing turbine blade contours

N次谐波法拟合供油凸轮型线的探讨

Study for Nth harmonic method fitting fuel cam profile

用RBF网络拟合船舶型线

Fitting Ship Lines by RBF Neural Network

SUCCESSENGINE英文原意直译为‘成功动力’，源自以‘型线之母’发明而著称的双螺旋技术，近百年间。

SUCCESS ENGINE whose English meaning is successful power derives from the Double Screw Technique which is known as " the mother of shaped conductor " .

三叶罗茨泵转子的型线设计与VBA参数化编程绘图

Outline Design and VBA Parametric Programming Draw of Three-lobe Roots Pump Rotor

基于NURBS的潜艇型线生成

Generation of Submarine Hull Lines by Using NURBS

首先研究二次开发的关键技术，然后以Visualc++6.0为开发环境，采用模块化思想开发出凸轮型线计算机辅助设计系统。

The key technology was first discussed , then under Visual C + + 6.0 environment , a computer aided system for cam profile was developed with blocking method .

在分析有关活塞裙部纵向型线拟合方法的基础上，提出了基于BP网络拟合的方法；

Based on the concerned methods for approximating the longitudinal section contour of piston skirt , one new approximating method based on BP neural network is presented in this paper .

针对中凸变椭圆活塞横向和纵向复杂型线的特点，提出了采用MATLAB曲线拟合工具对活塞的轮廓线进行曲线拟合。

Based on the character of the middle-convex and varying ellipse piston with complex transverse and longitudinal section contour , a method using MATLAB to fit piston skirt curve is given in this paper .

设计变量是叶栅型线的Bezier曲线控制点坐标。

The Bezier curve is applied to represent the blade profile and the corresponding control points are used as the design variables .

因此本文对离心鼓风机模型进行全三维整机CFD计算，通过对风机内部流场的模拟来深入的分析不同叶片型线风机产生性能差异的机理。

So full 3D-CFD calculation has been held on the centrifugal blower model , mechanism of performance difference among different blade profiles has been analyzed deeply by the simulation .

本文简要介绍了TRIBON系统LINES模块的主要功能，应用LINES模块设计型线及其应用体会。

The paper gives a brief description to the major functions of the LINES module of the TRIBON system and the experience of using this module to design ship lines .

从中小船厂应用AutoCAD的实际情况出发，阐述了渔船型线的特点及其数学型线的建立方法。

Considered some actual conditions that the AutoCAD is popularly used in small and middle ship yards , the characteristics lines of fishing vessels are described , and the mathematical equations are established .

分析了用AutoCAD绘制及编辑型线常规方法的局限性，并给出了用其绘制、编辑和光顺渔船型线的方法和技巧。

The limitation of the ordinary methods for drawing and modifying the characteristics lines with the AutoCAD is analyzed , and some methods and skills of generating , modifying and fairing them are proposed .

论叙了Depo放电堆焊加工机对模具分型线部位进行堆焊修复的优点。

The advantages for Depo discharging welding machine to renovate die parting line are stated .

通过对测量数据的噪声点过滤，数据精简等预处理，采用NURBS曲线拟合螺杆型线并分析了其拟合误差。

The NURBS curve is used for fitting the screw profile when cloud datas pretreatment is already done such as eliminated noise data and data reduction , the fitting error is also analyzed .

成功开发了一套活塞环CAD/CAM软件，具有活塞环自由型线计算、加工特征分析、图形显示、NC程序自动生成、活塞环型线误差补偿等功能。

Successfully developed a set of software about the piston ring CAD / CAM , which can analyse the free molded lines of the piston ring and automatically generate the interface program which need by numeric control processing according to variant piston rings .

分析了涡轮叶片型线的特点，阐述了Bezier曲线的原理及特性，提出用Bezier曲线作为涡轮叶片的设计曲线。

The blade of the turbine is analyzed , the principle and characteristics of the Bezier curve are elaborated , the paper presents a method of using Bezier curve to design turbine blade .

利用Pro／E的数控代码生成功能，探索圆的渐开线涡旋型线的加工方法，为降低加工成本、提高加工精度找到新的方法。

Then utilizes the code of numerical control of Pro / E to turn into the function , probes the round involute thread processing method of scroll profile , In order to reduce the finished cost and raise the machining accuracy to find the new method .

实验表明：通过加装这种切换凸轮型线VVT系统能够有效提高JL156FMI型摩托车发动机的动力性和燃油经济性。

It has been proved that the JL156FMI motorcycle engine performance could be effectively improved by loading the new type VVT system .

利用NURBS曲线的升阶和插值方法，给出组合曲线包括直线段、二次曲线段及自由曲线段的NURBS表示的一种方法，并给出它在船舶型线设计中的应用。

NURBS representation of combination curve including straight line , conic and free curve segment is given by using the methods of degree elevation and interpolation for NURBS curve . Its application in ship lines design is also given in the paper .

切换凸轮型线VVT机构通过高、低速摇臂的切换来实现不同转速的气门升程控制和正时系统。

The switching cam profile variable valve timing ( VVT ) mechanism is able to control valve lifting and timing system through higher and lower intake rockers at different engine speed .

将复合型线弹簧单元与ADINA程序相联接，便得到分析复杂结构物（特别是诸如管节点一类的空间相贯体结构）中所含表面裂纹的复合型应力强度因子程序。

When linked with the finite element code ADINA , this line spring element can be engaged in the analysis for surface flaws in complicated shell structures , such as spatially intersecting structures like tubular joints .

在摩托车发动机单顶置凸轮轴配气正时机构的结构形式基础上，研制一种可切换凸轮型线的VVT机构，具有2套可切换的进气配气正时参数。

A variable valve timing ( VVT ) mechanism with switching cam is developed on a motorcycle engine with single overhead camshaft . The VVT mechanism has two sets of switchable intake valve timing parameter .

高信噪比凸轮型线的设计方法

Design Method of Cam Profile For High Sign and Noise Ratio

几种干式螺杆真空泵转子型线特性的研究

Performance Study on rotor profile of some dry screw vacuum pumps

其中，船体曲面模型是根据型线设计而生成。

The whole ship model is generated according to linear design .