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| 1 | Influence of Center of Gravity Location on Flight Dynamic Stability in a Hovering Tailless FW-MAV: Lateral Motion显示文摘This paper reports the effect of the Center of Gravity(CG)position on lateral flight dynamic stability of hovering KUBeetle,a tailless FW-MAV,providing further insights on the effects of asymmetries in body mass distribution and wing kinematics.For the current study,the standard linearized equations of motion were applied as in the previous work on longitudinal dynamic stability.The stability derivatives were acquired using the computational fluid dynamic methods via the commercial software of ANSYS Fluent.There exists a stable region for CG between 2.6%and 3.5%of the mean chord below the wing pivot point,in which the lateral motion of hovering KUBeetle is passively stable.For CG below the stable region,because of an unstable oscillatory mode,the lateral motion of the FW-MAV is unstable but can be stabilized using rolling rate feedback.For CG above the stable region,because of a divergence mode,the system remains unstable even with the rolling rate feedback.Comparison with other works on an FW-MAV based on a quasi-steady aerodynamic model and on insect showed similar characteristics for flapping flight.It is also interesting to note that the asymmetries in body mass and wing kinematics can enlarge the stable region of the system by a non-zero Ixz which approaches the root square of√IxIz,a negative LrNp,and a positive Ix2(Ir+Np).Combining the current result with that of the previous work on longitudinal motion,the most beneficial region of the CG for full 6-DOF flight dynamic stability of hovering KUBeetle was suggested. | Loan Thi Kim Au Hoon Cheol Park | 2020 | Journal of Bionic Engineering2020，17，1： | 1 |
| 2 | 仿生扑翼无人系统研究综述显示文摘仿生扑翼无人系统是模仿自然界中蝙蝠、鸟类和昆虫的飞行方式研发的一种新型无人系统,可在高度复杂和动态的环境中飞行,并对环境的干扰具有良好的鲁棒性,是机器人领域未来发展的重要研究方向之一。本文对近年来国内外扑翼无人系统方面的相关研究进行综述,分别从空气动力学、系统识别与建模、感知和控制等几个方面介绍了扑翼无人系统的最新进展,最后提炼出扑翼无人系统的各个方面的挑战,并对该领域未来的发展和研究方向做出了展望。 | 王军 张震 李富强 卢宣成 | 2023 | 智能系统学报2023，18，3： | 1 |
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