Journal Article 動的可操作度と最大並進加速度を考慮したヘキサロータの構造最適化

伊吹, 竜也  ,  Ibuki, Tatsuya  ,  木曽, 勝之  ,  Kiso, Katsuyuki  ,  安田, 真大  ,  Yasuda, Masahiro  ,  三平, 満司  ,  SAMPEI, MITSUJI

83 ( No. 846 ) 2017-02 , 日本機会学会
This paper proposes a structural optimization method for a hexrotor. Structure here means the positions and orientations of the six rotors constituting the hexrotor. In the present optimization method, 6-DOF dynamic manipulability and the maximum translational acceleration are simultaneously considered as structural evaluation indices. The former is introduced as a common evaluation index for motion performance, and the latter with hope for payload flying against the gravity force. A special class of hexrotor structure is first proposed to make the optimization problem tractable, where 6-DOF dynamic manipulability can be provided by the simple product of translational manipulability and rotational one. Then, structural optimization problems are defined and a nonlinear optimization technique is applied. Here, the optimization problems handle two cases: (i) anti-torque of rotors and change of inertia tensor depending on structure are small enough to be neglected, or (ii) they are explicitly considered for structural optimization. Consequently, it is shown that the optimization provides strong symmetry.

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