矢高

在找形分析时，将矢高、内压和初始张力作为控制参数进行计算并依次给出了三者之间的相互关系。

The rise , the internal pressure and the initial stress are taken as the parameters in form-finding analysis and the relationships among these parameters are given by calculation .

这些参数为索预应力、索垂度、拱矢高、拱竖向抗弯刚度以及索和拱的轴向刚度比。

These are prestress in cables , sag of cables , rise of arches , the vertical flexible stiffness of arches and the axial stiffness ratio between the cable and the arch .

为解决计算矢高特大的扁壳的收敛问题，以三次B样条函数为试函数，用配点法计算了任意变厚度的旋转扁薄壳的非线性稳定。

With cubic B-spline function taken as trial function , the solution of nonlinear stability of a revolving shallow shell with arbitrarily variable thickness was obtained by the method of point collocation in order to solve the convergence of a shallow shell with big rise .

张弦梁结构的预应力和矢高优化

Pre-stress and Span Height Optimization of the Beam String Structure

根据具体实例，分析矢高对单向索&板结构体系的影响。

According to example , it analyzed the influence of vector height on one-way cable-slab .

第1种方法能够把矢高误差控制在较低的范围内，提高了加工精度；

The former can confine the chord error in a lower range , which can improve the machining accuracy ;

数值模拟结果表明，球壳的矢高与壳厚对反直观影响较大。

Results of numerical simulation show that the height and thickness of spherical shell have greater influence on counter-intuitive phenomenon .

计算结果表明，此种求解渐进多焦点镜片通道内矢高分布的方式在实际中是合理的。

The result shows that this solution means is practically reasonable for the calculation of sagittal distribution in the corridor of a PAL.

通过线性规划、齿形片、模态搜索及一维搜索片的联合应用，提出了索穹顶结构的预应力、截面、矢高、圈数同时优化设计的方法，优化效果明显。

The optimization design method is presented considering the parameters of prestress , section , vector height and loops for cable dome structures .

根据光束传输的能量分配守恒法则和折射定律建立方程组，通过数学软件数值求解方程组，解得非球面矢高表达式。

The expression of aspheric surface is obtained by solving numerically equations based on law of conservation of energy and refraction law by mathematical software .

进行了气枕结构的参数分析研究，得到了膜面应力和矢高、膜厚、矢跨比之间的关系。

Carried out the Parameters of cushion structure analysis and research has been the membrane surface stress and arrows high , film thickness , sPan ratio .

其中，结构的矢高大小以及撑杆数量多少是影响弦支穹顶结构动力性能较为明显的因素。

Among them , the structure of vector high size and how much the number of poles is evident influence string of dome structure dynamic performance factors .

对于空缆状态下的主缆线形，采用矢高相等的二次抛物线型还是采用悬链线线型，对悬索桥的静动力行为产生的差异不大；

The cable curves at cable finish stage , which utilizes equal rise of the quadric curve or the catenary curve , bring little difference to static and dynamic behaviors of suspension bridges .

在其他工艺条件保持不变的情况下，推导出了研抛盘的径厚比、弹性模量与工件表面的法向非球面度、法向矢高之间的解析关系；

When other technology conditions keep constant , the mathematical relation between the ratio of radius to thickness , Young 's modulus of the disk and normal asphericity , normal arc height of workpiece surface is given .

它利用麦克尔逊干涉仪的白光干涉零级暗条纹测出平面与被测球面相交的圆直径及相应的矢高值后，便可求得球面曲率半径。

The diameter of circle where the optical plane and the virtual image of optical sphere intersect and the corresponding bilge can be measured with zero order and black fringe of white light interference fringes of Michelson interferometer .

在均布荷载作用下，等厚度球壳的矢高为其厚度的6052倍时，对上临界荷载的计算仍取得了收敛的数值结果。

As the rise of a spherical shell with uniform thickness is 6 052 times of its thickness , upper critical load of the shell subjected to uniformly distributed load was investigated , and the convergent result was still derived .

对于单跨预应力混凝土框架梁和多跨预应力混凝土框架的内跨梁，通过位移法证明了用一定矢高的单波抛物线代替实际预应力筋进行次弯矩的计算，方法简单，结果准确。

For single span beam or interior span beam of prestressed concrete frame , a simplified method for calculating secondary moment was developed . A parabola was used instead of real prestressing steel bar shape in this method . The method is easy and the result is accurate .

将全矢谱技术与Wigner高阶谱结合，提出矢Wigner高阶谱，并将其应用到齿轮故障诊断中。

Vector Wigner higher-order spectrum is proposed by combining full vector spectrum technology with Wigner higher-order spectrum and applied to gear fault diagnosis .

对于矢跨比较小的坦拱，矢高与截面回转半径的比值将决定拱的屈曲形式。

Secondary buckling mode of shallow arches depended on the ratio of rise to gyration radius .