bell crank lever; bell crank是什么意思

用法例句

Coincidence of energy-current interpretation about angled-lever paradox with covariance of elasticity law;

直角杠杆佯谬的能流解释和弹性定律协变性的统一

Analyzing on being right angle of space plane angles projection;

投影成直角的空间平面角再分析

The metal of the right angle isnt enough used of hot rolled equal and unequal angle steel Mean while,the right angle is easy producing stress concentration and difficult rolling Therefore,the section of angle steel was optimized,and a new section of round arc angle steel is put forward,which can be easily rolled,used and saved metal material over 5

热轧等边、不等边角钢直角处金属未被充分利用 ,易产生应力集中 ,且轧制难度大 ,因而对其断面进行了优化设计 ,提出一种新型圆弧角钢 ,其轧制容易 ,使用方便 ,可节约金属材料 5 %以

Research on the Mathematical Models of Form and Position Errors for Rotary Surface in Rectangular Coordinates;

直角坐标系下回转表面形位误差数学模型的研究

By introduction of the finite difference method into the Symplectic system of mechanics of elasticity, a Symplectic difference format for plane rectangular coordinates was developed for elasticity problems under stress boundary condition.

将全区域离散的有限差分法引入弹性力学辛体系,建立了应力边界问题的平面直角坐标辛差分格式,用对偶的二类变量进行求解,可直接求得位移和应力。

This paper proposed an assumption on the basis of the operating characteristic of power systems,then made an improvement on Newton-Raphson power flow algorithm in rectangular coordinates.

根据电力系统的运行特点提出假设，继而时直角坐标牛顿－拉夫逊法潮流计算进行改进这种改进方法不但使雅可比矩阵元素的计算量大大减少，而且可提高计算速度、降低对计算机贮存容量的要求为直角坐标牛顿－拉夫逊法潮流计算的使用研究提供了新的依据

A 2-dimensional elasto-plastic finite element model of metal orthogonal cutting was developed based on large deformation-large strain theory,incremental theory and updating Lagrang- ian formulation.

基于大变形一大应变理论、增量理论以及更新拉格朗日算法,建立二维弹塑性金属直角切削有限元模型;采用几何分离准则(距离准则)判断材料的分离,并自动对畸变网格进行重划分;通过用不同的刀具前角对金属直角切削过程进行数值模拟,分析总结结果,得出直角切削过程中在不同切削前角时切削力、刀具与工件的温度、应力应变的分布情况,为选用刀具形状、提高切削表面质量提供了理论依据。