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題 名 | 翼穩脫殼穿甲彈與光膛砲管間交互作用之動態分析=Dynamic Analysis of APFSDS/Smooth Bore Gun Tube Interaction |
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作 者 | 陳幼良; 潘煥亞; | 書刊名 | 中正嶺學報 |
卷 期 | 32:2(A) 民93.05 |
頁 次 | 頁1-12 |
分類號 | 595.94 |
關鍵詞 | 振動; 運動力; 尤拉-白努利樑; 模態; Vibration; Moving force; Euler-bernoulli beam; Modal; |
語 文 | 中文(Chinese) |
中文摘要 | 火砲射擊時彈丸和砲管的交互作用會造成砲管側向位移並因而導致彈丸出砲口時側向偏移,同時也造成彈丸外彈道的不良影響,而其結果將導致射擊精度的降低。本文以尤拉樑方程式建立均勻砲管側向運動的模型並用彈性支撐來模擬砲管座,支撐端模擬成有側向與扭轉位移,砲管受力來源、主要為運動彈丸之重力、慣性力及砲管/彈丸交互作用時彈托產生之彈簧力。運用 Va111er-Heydenreich 表解法可計算出膛壓曲線並獲得彈丸位移曲線。經過分析後 , 我們可以得到以下結論有利於火砲射擊時振動之抑制:(1) 增加彈丸運動速度 ,(2) 增加支撐端側向及扭轉彈簧勁度,(3)增加砲管厚度,(4) 降低外殼勁度。 |
英文摘要 | While firing a gunshot, the yawing motion of the gun tube made by the projectile/gun tube interaction leads to yaw of the projectile at exit. This results in improper exterior ballistic free fright of the projectile and the resultant inaccuracy of the shot. The Euler beam equation model of a uniform gun tube is solved with elastic supports, which simulated the tube mount. Both transverse and rotational displacements of the supports are permitted. The beam loadings account for the moving projectile's gravity force, inertial force and the sabot's stiffness force. The Vallier-Hendereich method is introduced to calculate the chamber pressure curve and the projectile motion curve is obtained afterwards. After the analysis, several conclusions, which are good for controlling the vibrations of the gunfire, were obtained: (1)to increase the velocity of the projectile, (2)to increase the transverse and rotational spring stiffness, (3)to increase thickness of the tube, (4)to decrease the sabot stiffness. |
本系統中英文摘要資訊取自各篇刊載內容。