TY - GEN
T1 - 3-Dimensional lunar ascent reference trajectory optimization and analyses via Gauss Pseudospectral method
AU - Liu, Wangwang
AU - Wu, Weiren
AU - Zhu, Shengying
AU - Shang, Haibin
PY - 2011
Y1 - 2011
N2 - A Gauss Pseudospectral Method for trajectory optimization is presented and applied successfully to the 3-dimensional lunar ascent problem in this paper. Firstly, the profile of lunar ascent is discussed. In order to setup the optimal control problem, 3-dimensional dynamics and kinematics equations of the lunar ascent is established, the angle of attack and bank angle are chosen as optimal control variables. Then the Gauss Pseudospectral Method is used to transform the optimal control problem into a nonlinear programming problem. At last, the optimum trajectory is attained by a NLP solver. Simulation results and analyses illustrate that GPM have good robustness, strong convergence and is almost insensitive to initial guesses, it's an effective method for pre-establishing the suboptimal lunar ascent trajectory.
AB - A Gauss Pseudospectral Method for trajectory optimization is presented and applied successfully to the 3-dimensional lunar ascent problem in this paper. Firstly, the profile of lunar ascent is discussed. In order to setup the optimal control problem, 3-dimensional dynamics and kinematics equations of the lunar ascent is established, the angle of attack and bank angle are chosen as optimal control variables. Then the Gauss Pseudospectral Method is used to transform the optimal control problem into a nonlinear programming problem. At last, the optimum trajectory is attained by a NLP solver. Simulation results and analyses illustrate that GPM have good robustness, strong convergence and is almost insensitive to initial guesses, it's an effective method for pre-establishing the suboptimal lunar ascent trajectory.
KW - Gauss Pseudospectral Method
KW - Lunar Ascent
KW - Nonlinear Programming
KW - Trajectory Optimization
UR - http://www.scopus.com/inward/record.url?scp=80052225615&partnerID=8YFLogxK
U2 - 10.1109/CCDC.2011.5968175
DO - 10.1109/CCDC.2011.5968175
M3 - Conference contribution
AN - SCOPUS:80052225615
SN - 9781424487363
T3 - Proceedings of the 2011 Chinese Control and Decision Conference, CCDC 2011
SP - 219
EP - 224
BT - Proceedings of the 2011 Chinese Control and Decision Conference, CCDC 2011
T2 - 2011 Chinese Control and Decision Conference, CCDC 2011
Y2 - 23 May 2011 through 25 May 2011
ER -