碩士生: 李天 Gildas Daniel Alain Mourot
畢業年分: 2021年6月
論文名稱: 具有不同電極夾角的脈衝電漿推進器的優化與性能量測(中文) / Optimization and performance measurements of the pulsed plasma thruster with various electrode angles(英文)
中文摘要:
電力推進研究的重點是優化推進器設計和提高推進器性能。本文的研究中心是可變電極角度的脈衝電漿推進器（PPT）的優化和性能測量，包括對稱和非對稱的張角。我們研究了三種不同的電極角度，共九種配置，其中一種配置的性能尤為突出。
為了最大化PPT的推進性能，例如衝量比和排氣速度，同時最小化實驗次數，我們採用了田口方法，將實驗減少到九種不同的配置。我們使用Langmuir三探針來測量電漿的性質，這使得我們能夠測量PPT的幾個參數，如衝量比、排氣速度、電子溫度和電子密度。根據田口方法的結果，我們確定了電極角度、放電能量和對稱性對上述四個參數的影響。在這九次實驗中，實驗3（[0;40]，2 J放電能量）的表現最為突出，產生了158.55 μN·s的衝量比、39,071 m/s的等離子體速度、18.48 eV的電子溫度和4.95 × 1020 m-3的電子密度。我們確定了每個參數的最佳配置，但尚未進行驗證。
英文摘要:
Electric propulsion research focuses on optimizing thruster design and enhancing thruster performance. This study centers on optimizing and measuring the performance of a Pulsed Plasma Thruster (PPT) with variable electrode angles, both symmetric and asymmetric flare angles. Three different electrode angles were studied across nine configurations, one of which demonstrated superior performance.
The Taguchi method was used to maximize the PPT's propulsion performance, such as impulse bit and exhaust velocity, with a minimal number of experimental runs, reducing it to nine different configurations. A Langmuir triple probe was employed to gauge the plasma properties, enabling the measurement of several PPT parameters including impulse bit, exhaust velocity, electron temperature, and electron density. According to the results of the Taguchi method, the impact of electrode angles, discharge energy, and symmetry on these parameters was determined. Among the nine runs, experiment 3 ([0;40], 2 J discharge energy) stood out, producing an impulse bit of 158.55 μN·s, a plasma velocity of 39,071 m/s, an electron temperature of 18.48 eV, and an electron density of 4.95 × 1020 m-3. The optimal configuration for each parameter was determined but has yet to be verified.
