1) flat head
平封头
1.
In [1], it has been proved that the stress concentration factor of round cornerconnecting the flat head and the shell of a pressure vessel is the function of the threenon-dimensional parameters:λ≡h/dtη≡t/d and ρ=r/t.
采用有限单元法研究凹陷式平封头过渡圆角处的应力分布规律，并求出应力集中系数的简化计算式。
2.
Results from finite element analysis show that the stress concentration factors at the corners of the intersections of the flat heads and the cylindrical shells in pressure vessels are functions of three geometrical parameters, λ,η and ρ.
根据板壳理论的分析及采用有限元对多个算例的计算结果，提出平封头与圆柱壳体连接处的应力集中系数可以表示为３个无量纲参量的函数，并绘出相应曲线，可供设计参考。
2) flat head
平盖封头
1.
Structural improvement of flat head and FEM analysis for its strength;
平盖封头结构改进及其强度有限元分析
3) forged flat head
锻制平封头
1.
The effect of transitional radius on the strength of forged flat head are studied by finite element method(FEM),25 example pressure vessels with different diameter and design pressure are selected as the computation example.
采取有限元应力计算方法,分析了过渡区圆弧半径对锻制平封头强度的影响。
4) flat tubeplate head
平管板封头
1.
This article introduced the experiment of residual stress in flat tubeplate head of large scale fuel boiler that was manufactured by cold rotary extruding and butt weld.
本文介绍了大型燃油锅炉经拼板焊接和冷旋压加工制造而成的平管板封头残余应力试验。
5) flat (see flat heads)
平板(见平封头)
6) flat head with ribs
平盖加筋封头
1.
This article combined the finite element method and technology of optimization,set up parametric model using APDL language and completed the optimal design of one flat head with ribs.
将有限元方法与优化技术相结合,利用APDL语言建立了参数化模型,完成了某平盖加筋封头的结构优化设计,并将最终优化得到的结构尺寸与原始设计尺寸通过应力分析进行比较。
补充资料：螺栓连接式平封头
分子式：
CAS号：
性质：又称螺栓连接式平盖。此类封头一般均采用大型锻件制造而成，采取以螺栓连接方式与简体端部相接的称为可折式平封头。由于这类封头显得较为笨重，近年来在大直径高压容器上很少采用，一般用作压力容器的人孔、手孔的盖板和小直径高压容器的端盖等。
CAS号：
性质：又称螺栓连接式平盖。此类封头一般均采用大型锻件制造而成，采取以螺栓连接方式与简体端部相接的称为可折式平封头。由于这类封头显得较为笨重，近年来在大直径高压容器上很少采用，一般用作压力容器的人孔、手孔的盖板和小直径高压容器的端盖等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条