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为提高微型飞行器(M AV)的抗风扰动飞行稳定性,需要遵循仿生学原理,效仿自然界中的鸟类和昆虫,探讨抗风飞行的新方法。提出了柔性仿生机翼的概念,阐述了其设计思想与工作原理,并导出了大气扰动下柔性机翼气动力的解析表达。为验证柔性仿生机翼的实际性能,设计和制作了柔性仿生机翼M AV原理样机,并在风中进行了飞行试验。试验结果表明:采用柔性机翼能够显著改善有风条件下M AV的飞行品质,突风过载可降低40%左右,大大减弱了大气扰动对飞行的影响,有效提高了M AV的飞行稳定性。
In order to improve the anti-wind-disturbed flight stability of micro-aircraft (MAV), we need to follow the principle of bionics to follow the birds and insects in nature to explore a new method of wind-resistant flight. The concept of flexible bionic wing is put forward and its design principle and working principle are expounded. The aerodynamic analysis of flexible wing under atmospheric disturbance is also derived. In order to verify the actual performance of the flexible bionic wing, a M AV principle prototype of a flexible bionic wing was designed and fabricated and tested in the wind. The experimental results show that the use of flexible wings can significantly improve the flight quality of M AV under windy conditions. The over-wind load can be reduced by about 40%, greatly reducing the influence of atmospheric disturbance on flight and effectively improving the flight stability of MAV.