DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Bang, Hyochoong | - |
dc.contributor.advisor | 방효충 | - |
dc.contributor.author | Kwon, Jae-Wook | - |
dc.contributor.author | 권재욱 | - |
dc.date.accessioned | 2017-03-29T02:50:27Z | - |
dc.date.available | 2017-03-29T02:50:27Z | - |
dc.date.issued | 2016 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=663232&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/222455 | - |
dc.description | 학위논문(박사) - 한국과학기술원 : 항공우주공학과, 2016.8 ,[vii, 89 p. :] | - |
dc.description.abstract | A pin-point soft landing with a low touch-down velocity is critical for a lunar lander in the terminal landing phase, particularly with respect to scientific exploration missions. However, the main descent thruster of the lander is usually equipped on one side along the body axis while reaction thrusters for attitude control are fixed in three axes. This causes the translational dynamics and the rotational dynamics of the lunar lander to be mutually coupled. In this study, a new force-torque sequential control law is introduced to resolve the coupling effect. To further improve the coupled motion, a virtual landing trajectory augmented control law was designed. The virtual trajectory is represented as a virtual quaternion and augmented as a command to the lander’s position update using the dual quaternion. A combined augmented landing control algorithm is newly proposed to incorporate the virtual trajectory commands into the force-torque sequential control law. Numerical simulation results with some cases by the Monte Carlo method show that the designed augmented control system enables a terminal soft landing with less fuel consumption. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | Landing control | - |
dc.subject | Dual quaternion | - |
dc.subject | Lunar Landing | - |
dc.subject | Augmented control | - |
dc.subject | Virtual trajectory | - |
dc.subject | Coupled problem | - |
dc.subject | 달착륙선 | - |
dc.subject | 착륙제어 | - |
dc.subject | 증강제어 | - |
dc.subject | 듀얼 쿼터니언 | - |
dc.subject | 이체 쿼터니언 | - |
dc.subject | 달 탐사 | - |
dc.title | Virtual trajectory augmented landing control dual quaternion for lunar lander | - |
dc.title.alternative | 듀얼쿼터니언 기반 가상궤적을 적용한 달 착륙제어기술 연구 | - |
dc.type | Thesis(Ph.D) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :항공우주공학과, | - |
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