由于理论廓面是直纹面，其廓面曲率容易求得。
Curvatures of theoretical profile surface, which is a ruled surface, are easy to get.
提出了直纹面叶轮叶片非等距轮廓线的生成方法。
It introduces a new kind of generating method of non-equidistant curves.
介绍了陶瓷超声磨削加工现状，建立了平行直纹面数学模型。
The present status about ultrasonic grinding of ceramics is introduced, and a mathematical model of parallel ruled surface is constructed.
针对车用涡轮增压器压气机叶轮，研究利用可展直纹面构造叶片曲面方程的方法。
The method to construct the blade surface of developable impeller of vehicle turbocharger is investigated.
在阐述用直纹面拟合扭曲型面的基础上，用刚体变换的方法推算出阴极的控制轨迹。
Based on the description of fitting warped blade surface with ruled surface, the locus of cathode is induced by rigid body transfer in this paper.
提出将自由曲面蜕变为直纹面，将复杂自由曲面粗加工问题转化为简单的直纹面粗加工问题。
The problems that the free surface is changed to the ruled surface and complex free surface rough machining is changed to simple ruled surface rough machining are put forward.
建立平行、不可展直纹面数学模型，确定超声磨削加工平行、不可展直纹面时磨轮空间轨迹及其算法。
The mathematical model of parallel and undevelopable ruled surface was constructed, the algorithm for NC ultrasonic grinding surface was founded.
与其他算法相比，文中方法获得了较强的直母线族的鲁棒性和精确性，并能有效、合理地拟合出光顺直纹面。
Compared with other algorithms, examples show that our method can retrieve line sets more robustly and accurately, and can more effectively and rationally fit smooth ruled.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
In this paper, it is presented that the locus of a line crossedwith each of two guide lines and a guide conic not being on a commonplane is a ruled surface of fourth order.
通过叶盘叶片偏置面的直纹包络面逼近，确定叶盘通道粗加工区域，给出了四坐标插铣刀位轨迹生成算法。
The rough milling region of the open blisk tunnel is determined by generating the ruled envelope surface of the blades offset surface, and the algorithm.
本文介绍了利用线切削方法在通用机床上加工非可展直纹抛物面导风轮叶型的原理与装置。
Paper describes the principle and device for machining inducer blades with non-developable parabolic surface profiles with general purpose machines by using the linear-cutting method.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
It is presented that the locus of a line crossed with each of two guide line and a guide conic not being on a common plane is a ruled surface of fourth order.
本文提出了由一条二次曲线和与该二次曲线不共面的两条异面直线为导线，与该三导线均相交的直线轨迹是一个直纹四次曲面，并讨论了二次曲线分别为椭圆、双曲线和抛物线时，形成的曲面的形状特征。
It is presented that the locus of a line crossed with each of two guide line and a guide conic not being on a common plane is a ruled surface of fourth order.
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