研究了求解区域有凹边界存在时边界结点数对求解精度的影响。
The influence of node Numbers in a non-convex boundary on the solution accuracy is investigated.
通过分析花键冷挤压成形极限，得到花键断面缩减率和凹模形状对花键冷挤压成形时相对挤压应力的影响。
The effect of the spline reduced rate and the die sharp to the forming limit is found by analyzing the limit of the extrusion.
地震剖面上一个向上凹的、半圆形的同相轴，看上去象是微笑的样子，这是由于对含噪音数据或质量差的数据进行偏移引起的。
A concave-upward, semicircular event in seismic data that has the appearance of a smile and can be caused by poor data migration or migration of noise.
组合凹模的应力分析是一个非常复杂的问题，对其进行精确分析是解决模具寿命的关键。
The stress analysis of compound female die is a very complicated problem. Its accurate analysis is the key to solve die longevity.
用常规的幂强化公式计算药筒在引伸后的强度时，数值偏低较多，原因是该公式未考虑引伸凹模锥角对强化的影响。
But the strength of the cartridge case after ironing drawing cannot be accurately calculated by this formula, because the result of calculation is lower than that reached in practice.
对圆柱面——平面型平凹柱透镜和棱镜的扫描角放大特性进行了分析比较。
The planoconcave cylinder lens and prism properties of angular magnification in light scanning are analysed in the paper.
本文介绍了D_（18A）型凹底平车全封闭式大底架结构刚度、强度的计算和试验结果，对与此有关的若干问题进行了分析。
This paper tells the calculation and test results of the rigidity and strength of all-closed large underframes on depressed centre flat cars D18A. Several problems concerned are analyzed.
组合凹模的应力分析是一个非常复杂的问题，对其进行精确分析是解决模具寿命的关键。
The stress analysis of combined die is a very complicated problem, and the exact analysis on it is a key to solve the mould life.
本论文对曲面凹模成形工艺的若干问题进行了系统的理论分析。
In this thesis, the basic aspects about forming process of camber die are studied etically .
冲裁侧刃是端子模具中的重要工序，其冲裁形状和凸、凹模结构对端子生产质量影响很大。
Punching side blade is an important procedure of terminals die, its punching shape, concave die and convex die structure greatly impact the terminals on manufacture quality.
然后开展了凸、凹弧翻边的回弹试验，通过对试验数据的统计分析，得出了各因素及交互作用对回弹量的影响大小。
Then experiments on springback in concave and convex edge flanging are carried out, significance of factors and their interactions are studied with statistics approach.
利用轴向钢凹实验方法对新结构传爆药柱与常规圆柱形传爆药柱的起爆威力进行了对比实验。
Experiments of the initiation capacity of the new structure and that of the conventional cylindrical structure were made through steel block method.
通过在轴流脱粒与分离装置试验台进行单因素试验，分析了凹板间隙对谷物联合收割机作业性能的影响。
The study was according to the single parameter on the axial threshing and separating unit test bed, and concave clearance had an effect on its work performance was analyzed.
在定量分析了两者对齿轮精度的综合影响之后，运用反补偿法预先修正齿形凹模，并进行了齿模电极的设计。
Quantitatively analyzing the effect of two to the profile of tooth, the inversing compensation method is then put forward to modify the die cavity and the electrode is designed.
利用本模型可以得到喂入轮的脱粒率对脱粒装置凹板的脱粒率及分离率的影响。
The influence of the threshing rate of the feed beater on the separating rate of the concave can be calculated by using this model.
首次对贵州省为害竹子的飞虱种类进行系统调查，共有7属17种，均隶属于飞虱科、飞虱亚科、凹距族。
In the present paper, 17 species of planthoppers infesting bamboo in Guizhou province are reported. They belong to 7 genera of Tropidocephalini, Delphacinae, Delphacidae.
本文分析了人机结合对CAD系统设计的影响，论述了HPC系统凹模、凸模和挡料装置设计模块中的人机交互作用。
The influences of man-machine combination on the design of CAD system, the man-machine interaction in the die, the punch and the stock stop design modules of HPC system are discussed.
用有限元方法，对双圆弧弧齿锥齿轮沿齿长方向齿根应力进行了计算。通过应力计算结果的分析，得出了凸、凹两齿侧应力沿齿长的分布规律。
Through the calculation of the finite element method(FEM) models for double circular arc profile spiral bevel gear, the stress changing pattern along the length of the tooth is obtained.
并分析了缩径率、缩径凹模半锥角、摩擦系数、缩径管坯初始壁厚对管端翘曲和轴向伸长率的影响规律。
In addition, this paper presents how the diameter reducing rate, the die semicone angle, the friction coefficient and the original wall thickness influence the buckling and the axial elongation rate.
首先，我们对几何活动轮廊模型中吸引力场进行正则化，扩大目标轮廊边缘对的轮廊曲线的吸引力范围，增加轮廊曲线搜寻凹轮廊的能力。
First, we regularize the attraction force field in the geometric active contour model to extend the capture range of the object boundaries, and improve the ability of convergence to the concavities.
针对角膜轮廓线是凹的特点，对轮廓线重构算法做了改进，以便能构造出正确的角膜表面三角形网格。
Against the concave characteristics of corneal contour, we improve the algorithm of contour reconstruction to increase the robust of algorithm and obtain the triangle mesh of corneal surface.
组合凹模的应力分析是一个非常复杂的问题，对其进行精确分析是解决模具寿命的关键。
It is a very complicated problem to analyze the stress of combined matrix, and the key point related to die life is to do it's precise analysis.
用这种方法研究了不同凹腔长深比、凹腔后缘倾角和不同燃料喷注方案对超声速燃烧火焰结构的影响。
Then the influence on flame structure of supersonic combustion of ratio of length and deep of cavity, obliquity of back edge of cavity and different schemes of fuel injection were studied.
从柔印和凹印的特点出发，探讨了柔印和凹印对包装印刷原稿设计的要求。
Based on gravure printing and flexible printing, this paper discuses the requirement of flexible printing and gravure printing for package original manuscript.
分析了冷挤压毛坯质量对模具的工作部分（上、下凸模和凹模）的损坏形式和寿命的影响，指出了保证毛坯质量应采取的措施。
The effect of blank quality in cold extrusion on the damage way and service life of working parts (mould and die)is analysed, and some countermeasures presented.
实践证明：设计出的剃齿刀寿命长，加工质量好，对中凹现象有明显改善。
Facts have proved that the designed shaving cutter is long-lived, good in machining quality, and effective on correcting centre-concave.
本文用有限元法对凹型弯张换能器的前三个共振频率和振动方式进行计算，与测量值比较并讨论了作为水下宽带声源的优点。
The first three resonant frequencies and vibration modes of a novel flextensional transducer are calculated by finite element method, and compared with measured values.
本文用有限元法对凹型弯张换能器的前三个共振频率和振动方式进行计算，与测量值比较并讨论了作为水下宽带声源的优点。
The first three resonant frequencies and vibration modes of a novel flextensional transducer are calculated by finite element method, and compared with measured values.
应用推荐