说明:双击或选中下面任意单词,将显示该词的音标、读音、翻译等;选中中文或多个词,将显示翻译。
您的位置:首页 -> 词典 -> 弯矩包络图
1)  envelope of bending moment
弯矩包络图
1.
In the meantime,it can complete the approximate calculation of maximum bending moment and drawing of envelope of bending moment on simply supported beam by the action of both permanent loads and moving boads.
该法以影响线、计算机分别作为理论分析与计算工具 ,可同步解决恒载和移动活载作用下简支梁绝对最大弯矩的近似计算和弯矩包络图的绘制。
2)  bending moment diagram
弯矩图
1.
qx~n/l~n Study on area and position of mass center in bending moment diagram under load
qx~n/l~n荷载作用下弯矩图的面积和形心位置规律探讨
2.
The basic way that verifies whether bending moment diagram is correct is derivative judge.
弯矩图是内力图的一种,检验弯矩图正确与否的基本方法是导数的几何意义判定法。
3.
The bending deformation is one of the most important deformations in the engineering, analysis of internal bending forces is the key for knowing the bending deformation, the internal bending forces include two factors of the shear and bending moment, and to draw the internal bending force diagram is to draw the shear diagram and bending moment diagram.
工程中弯曲变形是最重要变形之一,分析弯曲内力是了解弯曲变形的关键,而弯曲内力包括剪力和弯矩两个内力因素,绘制弯曲时的内力图就是要绘制剪力图和弯矩图。
3)  general bending moment figure
总弯矩图
1.
There exist some insufficiency in the analysis of general bending moment figure in the materials mechanics textbooks adopted in many colleges.
现有材料力学教材中,对总弯矩图绘制方法的分析存在着明显的不足,针对这一情况本文比较详细地介绍了总弯矩图绘制一般方法;并对总弯矩图与两平面内弯矩图之间的内在联系,用解析几何的知识进行了分析与归纳。
4)  moment diagram
弯矩图
1.
A rapid design method to determine the amount of prestressing tendons and reinforcements in frame beam using moment diagram is proposed in this paper, which can be used efficiently in the primary design stage.
本文提出了一种利用弯矩图快速确定框架梁中预应力钢筋和非预应力钢筋的方法。
2.
Superposing is one of methods to obtain the sheer diagram and moment diagram of general beams that bear complicated loads, the essay details superposing which is a direct available method , and focuses application of superposing on the sheer diagram and moment diagram of beam such as mirror image symmetry.
叠加法是绘制承受复杂载荷梁的剪力图和弯矩图形的行之有效的方法之一 。
3.
In this article,the basic principles and general methods for drawing the shear diagram and bending moment diagram by the relations of derivative among shear force,bending moment and density of external distributed load have been analyzed mostly.
重点分析了由剪力、弯矩与分布外载荷集度的导数关系绘制剪力图和弯矩图的基本原理和方法。
5)  rectangular enclosure
矩形包络
1.
A computer aided nesting system based on rectangular enclosure method is described in this paper.
本文描述了一个基于矩形包络法的微机辅助排料系统。
6)  Matrix of envelope
包络矩阵
补充资料:包络


包络
envelope

而充分条件是f任C,,并且满足(9)和下列条件: D ff.f.几、_Df云.几、 二二上二坦述二乙竺乙笋O,共月典二书笋砖0. D(x,y,z)一’D(A,B)对于曲面族r(u,。,A,B),其中r任C,和rux瓦护0,必要条件是 甲=(ru孔rA)=0,少=(气凡rB)=0,(10)而充分条件是r任口,并且满足(l0)和 }〕三三,三},。,、,。. !叭凡巧几心礼峪l n维流形中依赖于k个参数的一族m维子流形包络的更复杂概念可在可微映射奇异性理论的基础上引出,作为一族映射的奇异性的特殊形式.给出的平面曲线族,其中C是族的参数,“是沿族中曲线的参数,一点在包络上的必要条件是几11rc,或 ,一孚毕共~一。,(3) D(u,C)两者是同一回事. 充分条件是r‘CZ并且除满足(3)外还要满足 几共一rc叭笋0.(4)违反条件(2)和(4)往往与包络上出现尖点有关. 空间依赖于单参数C的曲面族的包络(山volopeofa fami】y ofsur阮璐)是这样的曲面,使得其上每个内蕴参数为(u,v)的点与族中参数为C(“,v)的曲面相接触,并且函数C(u,v)在(u,。)定义域的任何区域上不是常数.例如,中心在一直线上的同半径球面族的包络是一个柱面.对于由f(x,y,z,C)=0给出的曲面族,其中f“c’和沃廿诱l+匡}护0,包络的必要条件是满足方程组 了=0,fc=0;(5)而充分条件是fe口并且除(5)外再加上条件: fc。笋0,(6) }卫丝二玉立{+}卫艾2五立}+}卫丛选立},。. }L, Lx,y)}}L,沙,z)1】L,Lz,x)!对于曲面族r(u,v,C),其中r‘C’和‘x凡笋0,包络的必要条件是满足方程 职=(凡几几)=0;(7)而充分条件是r任CZ并且除(7)外还要满足下列条件: }叭叭毋。l }r二ru凡rurc}特o,}礼j+I叭i笋0.(8) l孔叽嵘几rc!违反条件(6)和(8)中的第一式往往与包络上出现尖棱有关.包络与族中每张曲面的接触线称为特征线(cl坦份以eristiC clu货).包络上的尖棱通常就是特征线的包络. 空间依赖于双参数A和B的一族曲面的包络是这样的曲面,使得其上每点(u,v)与族中参数为A(u,v)和B(u,岭的曲面相接触,并且在(u,v)定义域的任何区域上不存在函数。‘c’使A(“,好二。(B(。
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