壳面

本文以柱面扁壳作为研究面畸变问题的几何模型，进行了柱面扁壳的板料成形试验，提出了柱面扁壳面畸变的测量方法，获得了柱面扁壳面畸变的分布形态。

The geometrical models to study surface deflection is cylindrical shallow shell in this thesis , proceed the sheet metal forming experiment , measuring method of surface deflection is presented , the distribution of surface deflection on cylindrical shallow shell is obtained .

而PL浓度的进一步增大会导致拉长结构进一步生长，并出现局部膨胀现象，这些都展示出硅藻壳面发育早期的一些特征。

Localized enlargement can also be observed during further growth of elongated structures , displaying some features of the earliest recognizable stage of valve development in diatoms .

为避免铸件表面缺陷，除控制涂料浆的粘度、SiO2含量、pH值外，还应控制型壳面层干燥的湿度并保持温度均匀，碳钢炉料和回炉料须100%抛丸清理。

Besides controlling the viscosity of coating , SiO2 content and pH values , the humidity and uniform temperature of surface layer of mold shell should be considered in eliminating surface defects in the castings .

本文借助阶跃函数和斜坐标系，建立了组合抛物面屋盖的壳面方程，然后应用扁壳非线性理论和Navier法，导出了组合抛物面屋盖非线性分析的计算公式。

In this paper , the curved surface equation of the composite paraboloid roof is established by means of step function and inclined coordinate . The calculating formulas of nonlinear analysis for the composite paraboloid roof are then derived from the nonlinear theory of shallow shell and the Navier method .

燃气轮机导流板精铸件型壳面层裂纹分析及改进

Analysis and Improvement of the Surface Cracks of the Shell Mold of Investment Castings of Aero-Engine Guide Vane

这个问题的主要困难是如何准确地描述作用在塔壳面上的脉动压力分布。

The major difficulty is how to describe exactly the distribution of fluctuating pressure on the tower surface .

对这4个新记录种的分类特征、生态习性和分布做了详细的描述，并提供了相应的壳面电镜照片。

Detailed description of the taxonomic characteristics with TEM photographs of the four species and their ecological distribution were given .

试验研究了柱面扁壳面畸变现象，得到了面畸变分布。

The distribution of surface deflection is studied through the experiment of drawing parts before and after trimming for the rectangle cylinder shallow shell .

方法是将压电片粘贴在要监控的碳纤维复合材料关键部位表面上，设计制作类似飞行器机翼的壳面结构。

It produces a kind of shell structure which is similar to aircraft wings through sticking the piezoelectric film on the monitored key parts of the Carbon fiber composite materials ' surface .

通过TG-DTA、X衍射对氧化物陶瓷型壳的面层和背层进行了分析，测试了陶瓷型壳的常温、高温力学性能和热膨胀系数，对型壳试样的断口进行了SEM观察。

Face and back coating materials of ceramic shells were analysed by TG-DTA and X ray diffraction . Room temperature and elevate temperature mechanical properties and coefficient thermal expansion were measured . Fracture morphology of shells were observed by SEM .

谈4135型柴油机油底壳油面静态显示器的研制

Discourse on develop static state indicator of the 4135 type diesel oil sump lubricant surface

硅溶胶型壳的面层和背层对硅溶胶和耐火粉料的要求是不一样的。

The requirements for silica sol and refractory powder for mold shell in face layer differ from that in back layer .

亦对固定导叶入口冲角、涡壳壁面粗糙度对流动的影响进行了定量分析。

Also , the chamfer of the stay vanes entrance and the surface roughness of the flow channel were optimized by the numerical investigations .

本文研究粘弹性圆柱壳内圆柱面和双圆片形水听器和阵对于TBL（湍流边界层）压力起伏的响应。

This paper investigates the responses of the cylindrical area hydrophone and two-circular areahydrophone in viscoelastic cylindrical shell to the TBL ( turbulent boundary layer ) pressure fluctuations .

双曲度扁壳拉深件面畸变的实验研究

Experimental Study on Surface Deflections of Double-curved Shallow Shells

油气运移通道主要是断裂和风化壳不整合面，区域盖层发育良好。

The main migration paths of hydrocarbon are fractures and weathering unconformity interfaces .

利用能量法求出肋位处耐压船体壳板中面周向应力。

The circumferential stress of the middle plate of the pressure-hull shell is given by using energy method .

圆柱壳在中央面承受冲击荷载时的塑性动力响应的近似解法

An approximate solution of the plastic dynamic response of cylindrical shells under impact loading on a medial cross section

柔性圆环壳在子午面内整体弯曲的复变量方程及细环壳的一般解

Complex Equations of Flexible Circular Ring Shells Overall_Bending in a Meridian Plane and General Solution for the Slender Ring Shells

毛刺的出现与制壳过程中面层型壳的开裂有关。大型机组蜗壳不同埋设方式的结构开裂分析

Shell cracking is the source of veining defects . Crack Analysis on Spiral Case Structure of Largescale Turbine Units with Different Embedded Manners

旋转壳在子午面内整体弯曲的几何非线性摄动有限元法及在波纹管计算中的应用（Ⅰ）

Finite Element Displacement Perturbation Method for Geometric Nonlinear Behaviors of Shells of Revolution Overall Bending in a Meridional Plane and Application to Bellows (ⅰ)

该单元的位移场由壳的中面节点位移和上表面节点的相对位移组成，不带有转动变量。

Without the rotation parameters , the displacement field of the shell element is represented by the displacement on the shell mid-surface together with the relative displacement on shell top surface .

基于此，将TBM盾壳与开挖轮廊面之间预留的间隙和隧道径向变形之差作为功能函数；

According to this , the difference between reserved clearance between a TBM shield and a tunnel outline and tunnel radial deformation is used as performance function .

设计了能在高辐射环境下工作的、全自动检查核电站反应堆压力壳连接处法兰面主螺栓孔螺纹表面缺陷的设备，解决了自动小车的设备承载和准确定位问题。

To inspect the defects on the screw hole surfaces of nuclear reactor pressure vessel in nuclear power station , an automatic moving table was designed to carry sophisticated inspecting devices .

在文献〔1，2〕的基础上，通过引入边界位移函数，建立了具有固支边的叠层厚柱壳在任意径向面荷载作用下的状态方程，给出静力问题的精确解。

Based on the Refs . 1,2 and introducing boundary displacement functions , the state equation is established for thick laminated cylinder with clamped edges under any radial surface loads and the exact static solution is presented .

壳聚糖的应用面广，它在生物学、医学领域以及食品、化妆品、环保、纺织、印染、造纸等工业上均有较大的应用价值。

The applied of the chitosan Was very extensive , it was in biology , medical science realm and food , cosmetics , environmental protection , spin and weave , print to dye , deckle industry all contain bigger application value .

利用模型计算结果通过等值线分析凝固壳厚度表明：板坯结晶器内各个水平截面上宽面的凝固壳厚度比窄面上厚，最厚在宽面中心，最薄是宽面靠近角部的区域。

According to the calculated results , the shell thickness on broad face is thicker than the shell thickness on narrow face , hi the same horizontal plane , the thickest shell is at the center of broad face while the thinnest shell is at the corner of the plane .

方法综合分析储层地质及地震波形特征，有效识别奥陶系风化壳侵蚀沟谷，利用基于沉积模型的地震反演处理和精细解释方法，高精度识别奥陶系风化壳顶面起伏形态。

Methods According to the geological and seismic reflection characteristics of O_1m5_ ( 1 + 2 ) carbonate reservoir , effectively recognize eroded channels and vales , and identify the top fluctuant configuration of the reservoir by high accuracy seismic inversion processing based on sedimentary model and elaborate interpretation .