...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Aeronautical journal >Development Of A Vtol Mini Uav For Multi-tasking Missions
【24h】

Development Of A Vtol Mini Uav For Multi-tasking Missions

机译：用于多任务任务的Vtol Mini Uav的开发

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Recent developments in the field of Mini-UAVs lead to successful designs in both hovering rotorcraft and fixed wing aircraft. However, a polyvalent MAV capable of stable hovering and fast forward flight is still expected. A promising candidate for such versatile missions consists of a tilt-body tail-sitter configuration. That concept is studied in this paper both from the flight mechanics and control points of view. Developments are based on an existing prototype called Vertigo. It consists of a tail sitter fixed-wing mini-UAV equipped with a contra-rotating pair of propellers in tractor configuration.rnA wind-tunnel campaign was carried out to extract experimental results from the Vertigo aerodynamic characteristics. A 6-component sting balance was fitted in the powered model enabling excursion in angles of attack and sideslip angles up to 90°. Thus, a detailed understanding of the transition mechanism could be obtained. An analytical model including propwash effects was derived from experimental results.rnThe analytical model was used to compute stability modes for specific flight conditions. This allowed an appropriate design of the autopilot capable of stabilisation and control over the whole flight envelope. A gain sequencing technique was chosen to ensure stability while minimising control loop execution time. A MATLAB-based flight simulator including an analytical model for the propeller slipstream has been developed in order to test the validity of airborne control loops.rnSimulation results are presented in the paper including hover flight, forward flight and transitions. Flight tests lead to successful inbound and outbound transitions of the Vertigo.
机译：小型无人飞行器领域的最新发展导致旋翼飞机和固定翼飞机的成功设计。然而，仍然期望能够稳定悬停和快速向前飞行的多价MAV。这种多功能任务的有前途的候选者包括倾斜机体的尾部保镖配置。本文从飞行力学和控制角度对这一概念进行了研究。开发基于名为Vertigo的现有原型。它由一个尾桨固定翼微型无人飞行器组成，该微型无人飞行器在拖拉机配置中装有一对反向旋转的螺旋桨。rn进行了风洞运动以从眩晕空气动力学特性中提取实验结果。动力模型中装有6组件的ing秤，可实现迎角和最大90°的侧滑角偏移。因此，可以获得对过渡机制的详细理解。从实验结果中得出了包括洗药效果的分析模型。该分析模型用于计算特定飞行条件下的稳定模式。这样就可以对自动驾驶仪进行适当的设计，使其能够稳定和控制整个飞行包线。选择一种增益排序技术以确保稳定性，同时最大程度地减少控制循环的执行时间。为了测试机载控制回路的有效性，已经开发了基于MATLAB的飞行模拟器，该飞行模拟器包括螺旋桨滑流的分析模型。本文给出了模拟结果，包括悬停飞行，前向飞行和过渡。飞行测试可导致Vertigo的成功进出转换。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号