查询词典 beam-focusing

Euler-Bernoulli beam model was employed in forced vibration analysis of strongly coupled beam system by using finite element method.

在反问题中，利用基于时域响应的有限元模型修正法进行了强耦合梁系统局部损伤的识别，讨论了人工测量噪声对损伤识别结果的影响。

Based on the construction features of the Upper Beam of Large Open-die Forging Hydraulic Press,a finite element model has been established by using large-scale finite element analysis software I-DEAS,and the structural stress and displacement of the upper beam under all sorts of loads have been analyzed.

根据某大型自由锻造油压机上横梁的结构特点，利用大型通用有限元分析软件I-DEAS建立有限元模型，并对上横梁进行了静力学的有限元分析计算，研究了在满负荷工作状态下上横梁的结构应力以及位移情况。

The analytical solution of the beam response was obtained by applying the Fourier integral transformation and the residue theorem, followed by a comprehensive parametric study to investigate the effects of the subsoil depth, the material stiffness and the load speed on the beam response.

运用Fourier积分变换和留数定理对动力控制方程进行求解，得到了平面应变条件下覆盖于基岩的均质弹性层和非均质弹性层地基上梁的动力响应解析解，并进一步分析了荷载运动速度、地基厚度及地基非均质性等对梁变形的影响规律。

This procedure used to simulate, Fresnel and Fraunhofer diffraction beam-beam diffraction contrast.

详细说明：此程序用于模拟，菲涅尔衍射光束和夫朗和费衍射光束的对比。

Armament remained unchanged from the fighter bomber, but FuG 220 Lichtenstein SN-2 or Fug 217J Neptune/FuG 218 Neptun V airborne intercept radar was to have been incorporated, the aerials being located forward of the wing (lateral beam port and vertical beam starboard).

原有战斗轰炸机的装备全部保留不变，但是加装了FuG 217J 海王星空中拦截雷达，天线安置在机翼前沿。这种情况下就需要另一名机组人员来操纵雷达装置，他坐在驾驶舱后部。

This paper provides an overview of status about laser beam shaping at home and abroad. The theory of beam shaping transformation, including geometric optics and matrix optics, is presented.

本文综述了国内外对于半导体激光束整形技术的研究现状，阐述了研究光束整形变换的理论方法，主要包括几何光学、矩阵光学。

The first beam-beam collision event at RHIC at collision energy of square root s_NN = 60 GeV was recorded by STAR.

它可以在从入射能量到最高能量的一个很大的能量范围内运行。

Power for the tractor beam emitters is provided by variable phase graviton polarity sources feeding sub-cochrane subspace field amplifiers. Phase accuracy of less than 2.7 arc-seconds per millisecond is required for precise control of a tractor beam.

牵引光束发射器的动力供给是靠子空间的Sub-Cochrance范围放大器，来供给牵引光束使用的可变相位极性，为了要正确地控制牵引光束的相位正确性要求，因此其相位变化必须少於每毫秒的2.7弧秒。

Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800,ChinaThe method of numerical simulation based on coordinate transformation and diffraction theory was adopted to analyze the beam characteristics of waveguide lasers with hard-edge unstable resonators.Output beam quality was investigated considering non-uniform pumping and gain saturation.

基于衍射理论和坐标变换，采用数值模拟的方法分析了硬边非稳腔平面波导激光器的光束特性，研究了存在非均匀抽运和增益饱和时，输出激光的光束质量。

By means of finite element analysis of ANSYS, this paper would analyze the behavior of the connections with beam-end horizontal haunch such as strength and ductility .The main contests are listed as follows: Firstly, build up the finite element model. Through comparing the finite element result to the test result, it proves feasible in finite element model to get the behavior of beam-column connections.

本文通过ANSYS有限元分析，对梁端翼缘扩大型节点的承载性能，延性等方面进行了研究，主要内容包括： 1建立有限元模型，并将有限元分析结果与试验结果进行对比，验证有限元分析的可行性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。