计算机辅助

Based on the kinematic and dynamic analyses of the gear honing model where a worm-shaped hone is used, a theoretica.l study on the mechanical mechanism of the process is performed.. Looked upon.from, its principle of computation, the analysis of gearing is transformed into furthermore a problem of non-linear programming.

本文通过蜗杆珩轮珩齿模型的啮合运动、动力分析，探讨了珩齿的力学机理，并从计算原理上把啮合运动分析问题转化为非线性规划问题，在此基础上提出了计算机辅助珩齿机理分析的算法。

For the optimization of mechanism design of rolling cut shears, a CAD software of rolling cut shears was developed and was used for the analysis of the factors such as crank radius, link rod length, phase difference, center distance of cranks and the offset position of upper blade carriage, which influenced the cutting quality, strength parameters and the load of main parts.

为了实现滚切剪机构设计的最优化，开发了滚切剪计算机辅助设计软件，利用该软件对影响滚切剪剪切质量、力能参数以及主要杆件受力的曲柄半径、连杆长度、相位差、曲柄中心距以及上刀架偏移量等因素进行了分析研究。

In light of the research situation on wheel loader and hydraulic excavator in China, a software package named KDOSCM was developed. This software package has functions of MBS kinematic analysis, dynamic analysis, optimization, motion simulation and static force analysis, and also was the first one in the field of Construction machinery in China.

最后，本篇针对国内在轮式装载机和液压挖掘机方面的研究状况，开发了一套可用于工程机械进行计算机辅助设计和分析的软件包KDOSCM，该软件包可进行工程机械的多体系统运动学分析、动力学分析、优化设计，运动仿真和静力分析，该软件包的研制在国内尚属首次，填补了国内工程机械领域的一项空白。

This paper focuses on the principle and technique of CAD system for warp-knitted fabric and includes four parts.

本课题主要介绍了经编计算机辅助设计系统的设计原理和实现技术，分为四大部分。

This paper advances the viewpoints and methods of the rapid sample product trial manufacture technique for water meter new products on CAD and simulation, computer virtual assembling and optimizing, rapid machining process and measurement etc.

对当前水表新产品的设计与样机试制工作中存在着诸如开发周期长、开发效率低、人工参与多等现状，提出了基于计算机辅助设计与仿真、虚拟装配与优化、快速加工与测量为主体的水表新产品快速试样技术的观点和方法。

Targeting the problems existing in drawing the passenger train flow diagram by hand, the essay develops the CAD system for passenger train flow diagram and respectively elaborated its three composites—the railway network, train flow lines and automatic drawing of diagram from the aspects of calculation method, idea and approaches.

针对旅客列车列流图手工绘制存在的问题，研究开发了旅客列车列流图计算机辅助设计系统，对旅客列车列流图的3个组成部分：铁路路网、列流线和图例的自动描绘，从算法、思路和步骤等方面分别进行了论述。

It is an important and basic element to apply intelligent computer aided decision making tool to improve the freight car approving of freight dispatching in the process of railway bureau dispatcher office modernization, thus it possesses a great significance in theory and application.

采用智能化计算机辅助决策工具来提高货运调度承认车计划的水平，是铁路局调度信息化、现代化过程中的一个重要基础性环节，具有重要的理论意义和应用价值。

A new CAD analysis of a rigid tie rod located close, adjacent, and coplanar to the lean axis yielded the surprising result of only about .005 length change with 20 degrees of lean.

一种新的计算机辅助设计分析的刚性拉杆位于靠近，毗邻，和面的倾斜轴取得了令人吃惊的结果只有大约0.005 长度变化， 20度的倾斜。

The practical application of this design model was illustrated through scheme generation and automatic simulation of thread-cutting mechanism in sewing machine, and the experiment arrives at a good result.

通过计算机辅助缝纫机剪线机构方案的产生、自动仿真等说明了这一模型的实际应用取得了较好的效果。

This research job analysised the extending roll pass system the finish roll pass system and the ultimate roll groove. The mathematical models and experience formulations used for roll pass design are corrected according to the basic theory and the practical experience of the engineerings. The thread steel bar CARD was set up with the visual program tool-VisualBasic6.0, based on the method of the structural program design.

本课题通过对螺纹钢延伸孔型系统、精轧孔型系统及成品孔型的构成和设计方法的分析，结合螺纹钢孔型系统的基本设计理论和工程技术人员的实际生产经验，对以往孔型设计过程中所使用的数学模型、经验公式等进行了修正，以结构化程序设计方法为基础，采用可视化编程工具VisualBasic6.0建立了螺纹钢计算机辅助孔型设计系统。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。