rib hole 中文意思是什麼
rib hole
解釋
邊炮眼-
Its structural form was rib arch with simple hole and frame supporting
結構型式為單孔肋拱、排架支承渡槽。 -
The measurements of discharge coefficients and pressure coefficients along the models with aspect ratios of 0. 5, 1. 0 and 2. 0 were carried out under various aerodynamic and geometric parameters ( reynolds numbers : 20000, 40000, 60000, 80000 ; suction rates : 0. 3, 0. 45 and 0. 6 ; rib angles : 45, 60, 90, 120 ; rib height - to - width ratio h / e : 1. 0 and 2. 0 ; film hole location : middle of ribs. upstream of ribs and downstream of ribs ). based on the abundant experimental data and figures, rules of discharge coefficients and pressure coefficients in dependence of geometric and aerodynamic parameters were given out
根據實驗課題的要求，在寬高比分別為1 . 0 、 2 . 0和0 . 5的內流冷卻通道里，在不同的氣動和幾何參數（雷諾數re分別為20000 、 40000 、 60000 、 80000 ，出流比sr為0 . 3 、 0 . 45和0 . 6 ，肋角分別為45 、 60 、 90 、 120 ，肋高h e分別為1 . 0和2 . 0 ，孔位分別為肋中間、肋下游和肋上游）的情況下，對流量系數和壓力系數以及流場進行了實驗研究，獲得了大量的實驗數據和圖形，較為詳細地給出了流量系數和壓力系數隨不同氣動參數和幾何參數而變化的規律。 -
It is found in the experiments that film hole reynolds number and rib angle have great influence on film hole discharge coefficients
實驗中發現氣膜孔雷諾數和肋角對流量系數有較大的影響。 -
Starting from virtual work principle, with the combination of fem, the author led into elastic stiffness practical formulation of bi - direction cellular slab. after comparing the bi - direction elastic stiffness formulation with the approximately stiffness formulation, the author drew such a conclusion that if the hole - rib is comparatively big, the elastic stiffness of bi - direction cellular slab calculated by approximately formulation would be comparatively small, and therefore the elastic stiffness could calculated by the formulation illustrated in this paper
本文從虛功原理出發，結合有限元方法，給出了雙向空腹板的彈性剛度實用計算公式，並與近似剛度公式進行對比分析，並得出結論：在雙向空腹板孔間肋較大情況下，利用近似公式計算雙向空腹板的彈性剛度偏小，可按本文提出的彈性剛度公式進行計算。
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