pitch of fins 中文意思是什麼
pitch of fins
解釋
肋片距-
The aerodynamic characteristics of a projectile with wrap around fins are studied systematically in this paper, as follows : 1. the lift coefficients 、 drag force coefficients 、 pitch moment coefficients 、 pitch damping moment derivatives and roll damping moment derivatives are obtained from engineering calculation through looking wrap around fins as flat fins of the same projection aera
本文對某卷弧尾翼彈氣動特性進行了系統研究，主要內容與結論為: 1 .將卷弧翼按照相同投影面積的平板翼進行工程估算，得到升力系數、阻力系數、俯仰力矩系數、俯仰阻尼導數、滾轉阻尼導數曲線。 -
The experimental results of air heat transfer show that the relative fin height, relative fin width, relative fin pitch and density of 3 - d ift with staggered arrangement fins all have an effect on heat transfer and flow friction. especially, the effect of fin density is bigger
空氣換熱實驗的結果表明：肋叉排三維內肋管的相對肋高、相對肋寬、相對肋間距以及肋密度均對其對流換熱特性有影響，其中肋密度的影響較大。 -
The self - tuning fuzzy control algorithm including a back - propagation - based fuzzy controller and the gradient descent method is applied to reduce the pitch motion of the swath ship with control stabilizing fins
控制模式為一自調模糊控制，包括應用一類神經倒傳遞觀念的模糊控制器及梯度下降法來減少縱搖運動。
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