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自旋固體火箭不穩定性實驗

The Experiment of Spinning Solid Propellant Rocket on Nutation Instability

摘要


在人造衛星的發射過程中,最後一節火箭的任務在於將衛星送入既定的最後軌道,爲了使衛星系統更穩定通常衛星會採用自麗(Spin)的方式作爲穩定方法,經由研究及實際觀察這種自旋的動作卻會使得固體火箭在燃燒的過程中造成衛星發生章動不穩定(Nutation Instability)現象,因此在本研究中利用-縮小尺寸的固體火箭來模擬真實火箭運作情形。經由此模擬分析,期望能找出影響發生章動不穩定現象的參數。

關鍵字

自旋 章動不穩定 液態池

並列摘要


The spin stabilized solid-propellant rocket motors have often been used as the final-stage propulsion system in deploying spacecrafts into designated orbits. Nevertheless, the self-spinning of spacescrafts can cause nutation instability during the combustion process of upper-stage rocket motor and may deploy spacecrafts into error orbit. Thus, a scale-down solid rocket is used to simulate real fly condition with the purpose of finding reasons of nutation instability. The result confirms that the modify slag theory is reasonable in the nutation instability analysis.

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