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논문 기본 정보

자료유형
학술대회자료
저자정보
Jong Tai Jang (Korea Aerospace Research Institute (KARI)) Hyeon Cheol Gong (Korea Aerospace Research Institute (KARI)) Joon Lyou (Chungnam National University (CNU))
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2015
발행연도
2015.10
수록면
1,743 - 1,746 (4page)

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초록· 키워드

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This paper newly presents how to apply the Computed Torque Control scheme to the flight control of a 4-DOF controllable aerospace craft, such as a multicopter and a rocket, by using a nonlinear inverse model to track a reference trajectory arbitrarily given in the 3D space of gravity condition and it shows the simulation results for some cases. Aerodynamics is neglected for the clarity of the explanation of the subject. The nonlinear inverse model of the rigid body are used to calculate and feedforward the ideally desired torque and force in the scheme without linearizing the nonlinear model of the craft. The analytic formula of the nonlinear inverse kinematics is newly presented for a 4-DOF controllable rigid body in the 3D space of gravity condition. The rotation matrix is used to represent the attitude of the craft. The attitude error is represented by using the rotation vector (the product of a rotation angle and a rotation unit vector) from the current attitude to the desired attitude and its calculation method is newly presented. The stability of the system is indirectly checked by the simulations for a reference trajectory with various deviated initial positions. It shows by simulations that the computed torque improves steady state errors and the PID control in the scheme compensates modeling errors and copes with incorrect initial conditions and abrupt changes of input commands.

목차

Abstract
1. INTRODUCTION
2. MODELING
3. DESIGN
4. SIMULATION
5. CONCLUSION
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UCI(KEPA) : I410-ECN-0101-2016-569-001919881