1)  shape of vent hole
开孔形状
2)  shape optimization of cutouts in composite plates and shells
复合材料板壳开孔形状优化
3)  open-cell
开孔
1.
Preparation Technology of Open-cell Polymeric Microcellular Foam;
开孔型聚合物微发泡材料制备技术
2.
Synthesis of New Style Open-cell Flexible PU Foam for Reticulation;
用于网化的柔性开孔聚氨酯泡沫的制备
3.
The result showed that noise reduction effect of the foam was the best when aniline polyether polyol A and low viscosity polyether polyol B were used, with the open-cell agent content was 3.
采用全水发泡工艺,通过对配方的调节,研制了一种具有较高耐压强度和较好降噪性能的聚氨酯开孔硬质泡沫塑料。
4)  open cell
开孔
1.
At the same strain,the absorbing energy of open cells with high density is highe.
对不同相对密度的两种胞孔结构———开孔和闭孔泡沫铝进行了单轴压缩试验,研究了相对密度对泡沫铝力学性能和能量吸收性能的影响。
2.
According to the theory of classical mechanics, the problem of stress concentration of open cell of spherical cover end is always solved by approximate computing formula.
由经典力学理论,对于球形封头开孔应力集中问题,大都采用近似计算公式。
5)  opening
开孔
1.
Improvement of Pipe Plug at Bottle of Spherical Tank and Suggestion of Opening Minimum;
球罐底部堵口整改方案探讨及开孔最少化建议
2.
Shakedown Analysis of the Nozzlecylindrical Shell Intersection for Large Openings in Thin Wall Pressure Vessles;
圆柱形薄壁压力容器大开孔接管部位的安定性分析
3.
Ultimate strength analysis of spherical shell with an opening for deep sea submersible;
大深度潜水器开孔耐压壳的极限强度研究
6)  cutout
开孔
1.
Buckling of honeycomb sandwich structures with cutouts and reinforcements;
含开孔和补强的蜂窝夹芯层合结构的屈曲分析
2.
The laws that natural frequencies of rectangular plate with a cutout will change with size and position of cutout are obtained by analytic, numerical and experimental methods.
通过解析分析、数值分析和实验研究，得到了矩形板开孔时其固有频率随孔的大小和位置变化而变化的一些规律。
3.
This paper is concerned with the stress concentration of cutout in transverse web for longitudinal stiffener.
本文研究为铺设纵骨而在舱壁板上开孔的应力集中 ,采用有限元方法对预先给定的结构进行应力分析 ,基于有限元计算结果给出了舱壁板典型开孔(参见ABS油船规范)的应力集中系数
参考词条
补充资料：布气临界开孔率
分子式：
CAS号：

性质：均匀分布流体的分布板的最小开孔率，也是区分高压降分布板和低压降分布板的标志。郭慕孙根据散式流态化的理论和高压降分布板的概念，导得分布板的临界开孔率式中，流量系数c=0.99[d0/t)-0.125；L为床高；g为重力加速度；u为表观线速；ρf为流体密度；△ρ为颗粒与流体的密度差；d0为分布板孔径；亡为分布板厚度，对于具有散式特征的某些细粒流化床；n=4.65；εmf=0.4。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。