波纹管

结合现场测试和有限元模拟，对埋地钢质波纹管涵洞土的拱效应理论进行了客观总结。

According to field tests and finite element simulation , objectively concluded the the Arching theory of steel sylphon bellows culvert .

另一种空气温度传感器是充气波纹管。

Another ambient temperature sensor is the vapor-filled bellows .

附：将其它没有用上的热水进出口用堵头堵住或用波纹管短接

ADD : Pulg up the remainder of the hot water inlets and outlets .

基于ANSYS的U形波纹管疲劳寿命分析

The Fatigue Life Analysis of U-form Corrugated Shell Based on ANSYS

用ANSYS软件对U形波纹管的有限元分析

The Finite Element Analysis to the U-shape Bellows by the ANSYS Program

预应力混凝土用PVC塑料波纹管试验研究

A research on tests of PVC plastic corrugated pipe used in prestressed concrete

高阻尼无加强U形减振波纹管研究

Research for High-damping Unreinforced U-shaped Vibration Reducing Bellows

基于VB开发的金属波纹管焊接工艺设计专家系统

Expert System of Metal Bellows Welding Technology Based on VB

U形波纹管失稳临界弯矩的三维有限元分析

Three Dimensional Finite Element Analysis of Critical Buckling Load of U-Shaped Bellows Subjected to Bending

PVC电线波纹管配方的正交设计

Orthogonal Design for PVC Corrugated Pipe Compounds

基于CAE的U形波纹管膨胀节的工程优化设计

Optimization Design of U-shaped Bellows Based on CAE

HDPE双壁波纹管的性能与应用

Performance and Application of HDPE Double - Wall Corrugated Pipe

利用ANSYS有限元程序对机械密封焊接金属波纹管波纹膜片进行应力分析计算。

ANSYS was used to calculate the stress within membranes of welded metal bellows used for mechanical sealing .

内压&压缩位移载荷作用下U形波纹管平面失稳判据的应用研究

Research on Application of Criterion in the In-Plane Instability of Non-Reinforced U-Shape Bellows under Internal Pressure and Displacement Loads

高压电力电缆用CPVC双壁波纹管的试制与应用

Preparation of C-PVC Double-wall Corrugated Pipe for High Electric Power Cable

而直接挤出成型HDPE大口径双壁波纹管将成为主要管材。

And squeeze directly piece shape canal of Shuang Bibo grain will become HDPE large requirements to basically provide material .

同时对储存环真空系统的关键设备真空盒、光子吸收器和RF屏蔽波纹管的设计原理、加工工艺以及实验方法进行了说明。

Discussion focused on its designing principle , machining and testing technologies of the key vacuum devices , such as the vacuum chamber , photon absorber and RF bellows .

本文则通过运用ANSYS有限元分析软件，根据挤压成型金属波纹管机械密封的使用工况选取参数进行优化分析，最终获得最为优化的结构尺寸。

The most optimized structure size is obtained by ANSYS finite element analysis software according to selecting the operating conditions parameters of analysis for metal bellows mechanical seals by extruded forming .

文章结合工程实例介绍在实验室及现场同条件下预应力混凝土用PVC塑料波纹管的检测技术及试验方法。

With some engineering examples , this article introduces some testing techniques and methods of PVC plastic corrugated pipe used in prestressed concrete , both in labs and on the spot .

在此基础上，计算了Ω型、C型和U型波纹管在纯弯矩作用下的变形和应力分布，所得结果和已有的解析解、数值解相符。

Finally the stresses and angular rotations of the bellows with the Ω - shaped , U-shaped and C-shaped profiles under pure bending moments were computed , and the obtained results coincide with those of the related analytical and numerical solutions .

本文采用了理论分析及非线性有限元分析的方法探讨了单纯内压载荷以及内压&轴向压缩位移载荷下U形无加强波纹管平面失稳的应力判据。

In this paper , the theoretic analysis and the Finite Element Analysis is presented to find out criterion in the in-plane instability of non-reinforced U-shape bellows under pressure loads or pressure-compress loads .

利用曲梁模型，考虑了U形波纹管的应变集中，导出了疲劳寿命预测式，实验证明了其正确性。

The curved beam model was employed and by considering the strain concentration of bellows , the predicting formula for the fatigue life of U-shaped expansion joint is derived , which has been proved by fatigue tests .

这些结论对工程中U形波纹管承受弯矩失稳具有重要参考价值，本文所采用的有限元分析方法，可弥补标准公式中存在的不足。

All these conclusions offer important reference basis for wreck of bellows subjected to bending in engineering , and the method in this article can make up the shortage of buckling formulation in the expansion joint standard at present .

采用上随体Maxwell本构方程描述聚合物溶液的流变性，用数值方法研究了黏弹性聚合物溶液在油藏孔隙模型&波纹管模型中的流动。

The rheological property of polymer solution is described by upper-convected Maxwell constitutive equation , and the flow law of viscoelastic polymer solution in porous reservoir model & bellows model is studied by numerical calculation .

并提出了基于计算机技术的PVC-U双壁波纹管生产质量控制系统的构建原理和设计思路。

This thesis points out the structure principal and project ideas of the production quality control system of PVC-U double-wall corrugated pipe , which is based on computer technology .

针对PVC-U双壁波纹管生产线的各个工序特点，采用不同的控制模式，形成了一套PVC-U双壁波纹管生产质量控制系统。

Aiming at each process characteristics of the production , it has adopted different controlling models and formed a set of the production quality control system of PVC-U double-wall corrugated pipe .

PBQ-C型光缆接续盒及塑料双壁波纹管

Model PBQ-C Optical Cable Junction Box and Plastic Double-wall Bellow

改用真空固溶处理工艺后，消除了缺陷，波纹管的工作寿命由原来的不足35h提高到200h以上。

After using vacuum solid solution , eliminate microcrack , improve ripple tube life from 35 h to over 200 h.

利用该程序对波纹管进行了计算，所得结果除边界区域外与Sutcliffe解基本一致。

By using this program , it is proved that the result of the computation approximately accords with that of Sutcliffe .

膨胀节波纹管部分采用FN2和Incoloy钢材最好，实践证明，采用上述两种钢材代替188型不锈钢作为制造波纹管膨胀节的材料，可延长膨胀节寿命2倍以上，有很好的经济效益。

Both FN 2 and Incoloy steels are most suitable to bellows expansion joint . Using these two steels to replace 18 8 stainless steel can double the service life of bellows expansion joint .