Optimal ascent to GEO using laser propulsion system

淡江大學機構典藏 > 工學院 > 機械與機電工程學系暨研究所 > 會議論文 > Item 987654321/70742

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题名:	Optimal ascent to GEO using laser propulsion system
作者:	Chern, J. S.;Hong, Z. C.;Chang, C. Y.;Chern, W. L.
贡献者:	淡江大學機械與機電工程學系
日期:	1992-01
上传时间:	2011-10-23 21:43:56 (UTC+8)
摘要:	The parameter optimization method is used to solve the optimal trajectory for vertical ascent to the GEO with dynamic pressure and thrust acceleration constraints. The time derivative of the velocity magnitude of the vehicle is assumed to be a polynomial function of the flight time, with the coefficients as free parameters to be selected. The required thrust magnitude and angle are derived as functions of the state variables and the polynomial. A first order polynomial function is adopted for numerical computation. The flight time and the two coefficients are selected such that the final condition for GEO insertion is satisfied and the final mass is maximized. With thrust acceleration constraints, it is found that the final mass remaining is 0.1165, 3.414, 10.53, 18.48, and 25.90 percent, respectively. For a vertically ascending trajectory, the relative speed of the vehicle with respect to the atmosphere is the vertical component of the inertial vehicle velocity.
關聯:	43rd Congress of the International Astronautical Federation,
显示于类别:	[機械與機電工程學系暨研究所] 會議論文

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