哪为大大帮忙翻译下啊！！！小弟感激涕淋啊~~~~~~

来源：百度知道 编辑：UC知道 时间：2024/07/07 20:48:25
随着数控高速切削技术的日益发展，当进行高精度的自由型曲线加工时，由微段直线或圆弧构成的零件程序非常庞大，从而造成加工信息量大增，另外直线或圆弧也不能真实完整地反映CAD/CAM系统所产生的复杂曲线模型，从而造成制造精度偏离设计要求。为了能够更好地解决高速切削的工艺问题，有关NURBS技术也成为研究热点之一。
本文针对自由型曲线造型及数控加工的需要，主要完成了以下几个方面的工作：
首先，采用NURBS方法对自由型曲线进行描述，该方法基于NURBS曲线的反算算法。
其次，基于标架理论平面求NURBS曲线的一阶，二阶导数，曲率等。并且利用累计弦长的方法求出NURBS曲线上两点之间的弧长。接着运用伏雷内公式确定NURBS曲线上点的坐标。
再次，在标架理论平面的基础上，我们将研究运用泰勒二阶展开式对NURBS曲线进行插补。这种方法即满足了精度的要求，又减少了加工信息量，提高了加工效率和质量。
最后，我们将运用VC在window平台上进行软件设计，加以验证。

Along with numerical control high-speed cutting technology flourishing more and more daily, when carries on the high accuracy the freedom curve processing, is extremely huge by the micro section straight line or the circular arc constitution components procedure, thus creates the processing information content to increase, moreover the straight line or the circular arc cannot really completely reflect the CAD/CAM system produces complex curve model, thus creates the manufacture precision deviation design request.In order to can solve the high-speed cutting craft problem well, the related NURBS technology also becomes one of research hot spots.

This article in view of the freedom curve modelling and the numerical control processing need, has mainly completed following several aspect work:

First, uses the NURBS method to carry on the description to the freedom curve, this method instead calculates the algorithm based on the NURBS curve.

Next, begs