由法锥概念得到了控制问题的最优必要条件。
Then the necessary conditions of optimal control problem is obtained by the conception of normal cone.
本文构造了一个新的求解非凸区域上不动点问题的内点同伦算法，并在弱法锥见定义2。
In this paper we construct a new interior-point homotopy method for solving fixed-point problem in nonconvex set, and prove the convergence under the weak normal cone condition see Definition 2.
算法为地表的简化提出一种新的基于受限法向锥的误差计算方法，使得模型简化具有轮廓保持和光照保持特性。
Both silhouette preserving and shading preserving criteria are satisfied by applying a new error metric-constrained normal cone to view-independent simplification.
法向圆弧螺旋锥齿轮传动是一种新的锥齿轮传动形式。
The normal arc spiral bevel gears is a new type of transmission pair.
运用有限元法分析了不同入口锥角的陶瓷喷砂嘴冲蚀过程中的应力状态。
The stress states of the ceramic nozzles with different entrance angle in the sand blasting process are analyzed with finite element method .
用解析方法计算了受静水外压载荷作用的有环壳过渡段的锥—柱组合壳中的应力值，并用瑞利法计算了其失稳临界载荷。
Stresses in cone cylinder shells with toroidal transition inserted are investigated by an analytical method, and buckling pressures for the shells are presented by Rayleigh Ritzs method.
制作光纤耦合器的方法有化学腐蚀法、研磨法和熔融拉锥法。
The making methods of optical fiber couplers have chemical corroding, grinding and fused biconical taper method.
给出了斜航式法向圆弧螺旋锥齿轮的参数化建模方法。
The parametric modeling method for loxodrome normal circular-arc spiral bevel gear was presented.
然后应用反迭代法与边界层渐近匹配的方法求解了钝锥边界层的稳定性方程，得到了钝锥边界层转捩数据。
The Rayleigh inverse-iteration method and boundary layer asymptotic expansion method are used to solve the blunt cone boundary layer stability equation to get reliable boundary layer transition data.
对钢球法测量直齿圆锥齿轮齿厚及锥项位置误差检测进行了研究和探讨。
Deviation measurement of tooth thickness and conical point of straight bevel gear by using steel bail was studied and approached.
用非子午面光线追迹法，对单芯锥、套层锥以及双芯锥光纤和DH激光器的耦合效率，双芯锥的分光比做了数值计算。
The efficiency of coupling between DH lasers and tapered launchers with singlecore, clad-core and double core has been calculated by using skew ray tracing technique.
螺旋锥齿轮副的成形法大轮，利用合适的成形铣刀，在通用的立式加工中心上，可以实现热处理后硬齿面的高速铣削。
For spiral bevel gears' formate gear, using proper figurate cutting tool and generic CNC machining center, the gear's hard tooth-surface can be milled with high speed.
文章结合编程实例介绍了球弧数控车削三种常用的工艺方法，即车圆法、移圆法、车锥法。
This paper introduces three kinds of CNC turning method combined with practical example, concentric circle turning, center shifting turning and taper profile composition turning.
用金刚锥显微脱粘法测得复合材料的界面强度。
The interfacial strength was measured using pyramidal diamond micro-debonding method.
对双锥型变截面单元，推导了等截面单元的等效结点荷载公式，介绍了利用子结构分析法得到双锥型单元等效结点荷载的过程。
For elements with tapered ends, the equivalent node load equations can be derived based on those of same cross-section elements and tapered elements according to sub-structure method.
测定磨具硬度的方法，较常用的有手锥法、机械锥法、洛氏硬度计测定法和喷砂硬度计测定法。
Abrasive hardness measurement method, more commonly used are hand-cone method, mechanical cone method, Rockwell hardness tester hardness measurement method and blasting assay.
为了保证碳平衡法测量实车油耗的精度，对油耗测量系统中的内锥流量计进行了特性研究。
In order to accurately test the fuel consumption with carbon balance method, a series of characteristic studies were carried out on V-cone flowmeters for exhaust flow measurement.
利用最小有向距离原理，提出了斜航式法向圆弧锥齿轮传动的误差分析仿真算法。
Based on the principle of "minimal orientation-distance", an emulation algorithm of error analysis is put forward for transmission of loxodrome normal circular-arc bevel gear.
斜航式法向圆弧锥齿轮数控加工实验表明，该锥齿轮数控加工原理正确，工艺简单，且加工精度较高。
The experimental results of machining actual workpiece prove that nc machining principles are correct, technology is simple, and the machining precision is high.
介绍了用锥镜法和取高级衍射光斑法来实现空心光阱的实验方法。
The experimental method used to form doughnut laser trap through axicons and by extracting high order diffractive light component is introduced.
本文用三维光弹性法分析锥齿轮在扭矩和离心载荷下的应力分布。
The three-dimensional photoelasticity method is used to analyze the stress distribution in the bevel gear under torsional moment and centrifugal load.
借用露天开采境界优化的常用动锥法，对外排土场境界赋值，且可用计算机实现境界赋值全过程。
The moving cone method which is usually used to optimize the pit limits is used to establish the external spoil pile limits. with the aid of a computer, it can establish spoil pile limits rapidly.
本文主要对这种新型传动齿轮——斜航式法向圆弧螺旋锥齿轮的误差与变异的关系和精度检测进行了较为深入的理论研究。
In this dissertation, the relationship between the errors and variations for the loxodrome normal circular-arc spiral bevel gear (LNCSBG) is deeply studied.
基于有限单元法分析了螺旋锥齿轮强度和刚度相关问题的计算方法。
The strength and stiffness of spiral bevel gear are analyzed based on the finite element method.
通过对螺旋锥齿轮机械式铣齿机与CNC铣齿机之间加工调整参数转换原理的研究，推导了这两类机床运动轴数学模型；提出了求解各运动轴表达式系数的速度求导法。
By studying the transformation principle of the machining setting parameters from cradle style machine to CNC gear generator, mathematical kinematic models of every axis are deduced.
从锥壳理论出发，导出计算旋转壳自由振动的一阶微分方程组，采用离散变量法进行求解。
From the theory of conical shells, a set of the first-order differential equations for the shells of revolution are derived. The discrete-variable method is used to solve the differential equations.
前言：基于螺纹测量“三针法”的原理，使用机器视觉的方式，研制开发了三维自动锥螺纹检测系统本体，对图像处理技术中的预处理部分做了简单探讨。
Based on the "three-ball" measurement theory and the machine vision technology, a novel instrument for measuring taper thread is introduced. At the same time, image pre-process technology is analyzed.
介绍了使用坐标法测量弧齿锥齿轮，并进行数据处理，以便对齿轮的加工参数进行修正的思路和方法。
This paper introduce a method of measuring spiral gear in coordinate system and deal with the data. The result of measurement can right guidance the machine's parameter.
介绍了使用坐标法测量弧齿锥齿轮，并进行数据处理，以便对齿轮的加工参数进行修正的思路和方法。
This paper introduce a method of measuring spiral gear in coordinate system and deal with the data. The result of measurement can right guidance the machine's parameter.
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