1) mean radius of curvature
平均曲率半径
2) plan radius of curvature
平面曲率半径
4) curvature radius
曲率半径
1.
Analyses of the curvature radius of the cam outline in constant flow reciprocating pump;
恒流量往复泵中凸轮廓线曲率半径分析
2.
Quantitative relation between decomposition rate and curvature radius of hump on phase diagram during binary chemical compound melting;
二元化合物熔化时的热分解率与其在相图中峰顶的曲率半径的关系
3.
Linearity measuring mechanism of the curvature radius of sphere lens;
球面透镜曲率半径的线性测量机构
5) radius of curvature
曲率半径
1.
The autocollimating telescope method for determination of the radius of curvature and focal length of thin lens;
用分光仪测量薄透镜曲率半径和焦距的实验研究(英文)
2.
The Radius of Curvature at Any Point on the Profile of A Disk Cam with Oscillating Roller Follower——One Application of the Euler-Savary Equation;
摆动滚子从动件盘形凸轮廓线上任意点的曲率半径——Euler-Savary公式的一个应用
3.
Precision analysis of measurement of radius of curvature by interferometer
干涉仪测量球面曲率半径的精度分析
6) curve radius
曲率半径
1.
With the relation between curve radius before the plate is relapsed and curve radius after the plate is relapsed, on the theory basis we expound a concept to regard the exponent relation between the descent of upper unit and curve radius as a maths model of asymmetric three roll bender, and carry out research on its application.
就非对称式三辊弯板机板材滚弯成形时的几何参数展开计算,利用板材弹复前后曲率半径间的关系,在理论的基础上提出了把上辊进给量与板材成形曲率半径间的指数函数关系作为非对称式三辊弯板机卷板数学模型的观念,并就该数学模型的实践应用开展了研究。
2.
In this paper the method of volving angle sensor measurement of curve radius is used to examine the plate forming curve in the process of forming and its′ principle and methodology is explained.
将转角传感器测量曲率半径方法应用于板材滚弯加工过程的成形检测之中,论述了采用转角传感器测量板材曲率半径的原理及其测量方法,通过试验研究分析得出该测量方法的优越性及造成测量误差的主要原因。
3.
With the relation between curve radius before the plate is relapsed and curve radius after the plate is relapsed, on the theory basis we expound a concept to regard the exponent relation between the descent of upper unit and curve radius as a maths model of asymmetric three roll bender, and carry out research on its application.
就非对称式三辊弯板机板材滚弯成形时的几何参数展开计算,利用板材弹复前后曲率半径间的关系,在理论的基础上提出了把上辊进给量与板材成形曲率半径间的指数函数关系作为非对称式三辊弯板机卷板数学模型的观念,并就该数学模型的实践应用开展了研究。
补充资料:平均曲率
平均曲率
mean cunafure
平均ee率[~e一臼此;epe刀田皿.印棚3.a],3维Euclid空间R’中曲面小2的 该曲面点A处主曲率(prmc币alcun瓜ture)k,与k:和之半: k,+k, H(A、二一_ 2对于EucUd空间R”+’中的超曲面。”,此公式可推广为: k,+…+k_ H‘A、二一 n其中k‘(j=l,…,n)是所给超曲面在点A任中”处的主曲率. R3中曲面的平均曲率可通过该曲面的第一和第二基本形式的系数表示: 1 LG一ZMF+NE H(A)二之二二二‘一二二七二一二二二全匕 2 EG一F乙其中E,F,G是在点A。中2处计算的第一基本形式(肠tfi功dsl拙ntal fbxm)的系数,L,M,N是该点处第二基本形式(second加次ha众浏园form)的系数.在所给曲面由方程Z=f(x,y)定义的特殊情形,平均曲率可用下述公式计算: H(A)= 卜十图’)典一2李李-业二、「1+国’}斗 L\oy/J ox一ox oy口x口yL\口x/J口y‘ 「1、r李、’十了鱿、’1’‘, L‘\刁x/’\a夕/」此公式推广到R”干’中由方程x。+、=f(x,,…,x。)定义的超曲面中”如下: H(A), 女rl+。2-位Z力2〕里本一争皿』五一望立- ‘习L一\口工‘/」dx了‘.界,口x‘dxz dx,dxz (l+p’)’12其中 ,2一}gtadf}2一r李、’+…、{共)’. ·扩一\似,/\叔。/ 几.A.C”江opoB撰【补注l对于n维E珑lid空间中余维数为”一功>1的m维子流形M,平均曲率推广为平均曲率法向量(n笼习n cun旧t切吧nont自1)概念: 、,一生”犷「TrA(。‘、1。. m]=!其中e:,·,e。一。是M在p处的法空间(见法空间(曲面的)(nom以lsP毗(to as切成‘e))的标准正交标架,A( ej):T,(M)~T,(M)(T,(M)为M在p处的切空间)是M在p处沿e,方向的形状算子(s恤pe oPemtor),它与M在p处的第二基本张量V由“
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条