查询词典 plate beam

According to the studied results at present, the studied objects are mainly thin plate and beam about sound radiation mode, a method computed sound radiation mode of complex structure is presented in this dissertation, according to the results of the previous two chapter, a theoretical method to solve acoustical radiation mode and acoustical radiation efficiency of complex structure by boundary element method and acoustical radiation theory is posed, the acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regard to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results. According to results of the form three chapter, the structure sound radiation sensitivity is studied in detail, the sound radiation power of structure can be expressed as positive Hermitian quadratic form, the sound radiation sensitivity can be expressed as two parts by partial differential with respect to design variable, which are sensitivity of boundary velocity and impedance matrix, combined with the theory of FEM and BEM, the structure sound radiation can be translated to the analysis of structure dynamic sensitivity and impedance matrix sensitivity. The theory posted in this dissertation is tested by the FEM software ANSYS and the software AAS programmed by author.

在前几章的基础上，通过结构声辐射的模态理论对结构的声辐射的机理进行了深入地探讨，针对目前声辐射模态的研究对象主要是简单的板和梁类结构，提出了一种计算复杂结构声辐射模态的方法，利用前两章研究所得的结论，将边界元方法与广义特征值的理论结合起来研究了复杂结构的声辐射模态与声辐射效率，先将结构的声辐射功率表示为一个正定的厄米特二(来源：ABb7C论文0909网www.abclunwen.com)次型，运用广义特征值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度耦合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

Influence of laser beam bending on thickness measurement of hot steel plate.

光线弯曲对热钢板激光厚度测量的影响及消除方法。

Based upon the assumptions of small deformation, the unretractility of the beam's axis and the inextensibility of the plate's neutral surface ("the method of geometrical deformation constraint"), we can obtain the geometrically nonlinearized formulae of the beams and plates. Accordingly, the "dynamic stiffening terms"would be naturally cooperated into the dynamic equations of flexible multibody system if combined with the linerization of kinematic parameters at the proper stage.

利用杆类柔性体轴线的不可伸缩性和板类柔性体在中面内的不可伸展性，并结合小变形的假设，从而可获得杆类和板类的几何非线性变形表达式；以此为基础，在适当阶段对运动学参量进行线性化处理，可确保"动力刚化项"在建立柔性多体系统动力学方程过程中自然地形成。

The support is provided with a gap enabling a light beam to pass through the glass plate and to impinge on a light receiver.

支撑件上设有狭缝，以使得光束能穿透玻璃板并射到光接收器上。

A new technique of real-time laser beam quality measurement is presented. It is based on a multiplane imaging method which consists of plate reflecting mirrors and enables simultaneous imaging of ten planes with various optical paths on a single charge coupled device array.

提出一种新型光束质量实时测量技术，该技术主要基于由平板反射镜组成的多平面成像系统，一次性将激光束腰附近2倍瑞利距离内的多个光斑成像在同一个平面上，用CCD相机获取这些光斑的光强分布图样。

We reported the muon beam test results of the first full-scale prototype of CMS RE 1/2 Resistive Plate Chamber.

介绍了CMS RE 1/2全尺寸阻抗板探测器的束流测试结果。

Corona discharge characteristics of beam-plate electrode in electrostatic oiler have been studied from the plasma body theory.

依等离子体理论，研究了静电涂油机梁板电极电晕的放电特性，同时计算得到了梁板电极电晕放电的起晕场强和起晕电压，定性的揭示了油液荷电的雾化机理，为静电涂油机的研制改造提供了参考依据。

In light of the latest researches carried out by this research team,it discusses the status quo of the researches in oil charging and atomizing for electrostatic spraying with the emphasis on liquid atomizing in the electrical field of beam-plate electrode and key technologies for the development of electrostatic oiler.

对液体荷电雾化技术在试验和数值模拟两方面的研究现状进行回顾和综述，并结合课题组近年来的研究情况，论述液体荷电雾化技术在静电涂油领域的研究现状，重点探讨梁板电极电场下的油液雾化技术以及静电涂油机的开发研制过程的关键技术。

We have a light beam travelling through a vacuum and falling on a glass plate.

由于屏上有缺口，在很远的墙上的暗背景上现出了光斑。

The company has three Large-Scale- Boxcar- Gate –Cold- Bending –Shapers and Chassis Summer Beam Cold Bending Shapers ,two chassis riveted joints production lines, one chassis spurts spreads production line. It also has great forging and stamping equipments, plate cutter, hydraulic press and sheet knee bend machine etc. In addition the company has the mold development equipment such as lathe, line cuts, digs bed and so on and has power which develop and produce kinds of truck using in agriculture ,light truck ,chassis of car. The sum of product is exceed 60,000 wraps in one year.

公司拥有大型车厢栏板冷弯成形机、底盘大梁冷弯成形机三台，二条底盘铆接生产线，一条底盘喷涂生产线，拥有大吨位冲床、剪板机、液压机和板料折弯机等锻压设备，及车床、线切割、刨床等模具开发设备，具备各类农用车、轻卡、汽车底盘的开发和生产能力，年生产能力逾六万台套。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐