...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Aircraft >Experimental Performance Evaluation of Coaxial Rotors for a Micro Aerial Vehicle
【24h】

Experimental Performance Evaluation of Coaxial Rotors for a Micro Aerial Vehicle

机译：微型飞行器同轴转子的实验性能评估

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

Because of their potential for application in both civil and military sectors as well as the challenge in designing a tiny flying vehicle, micro aerial vehicles have attracted enormous attention. Several configurations of micro aerial vehicles are under development, namely fixed wing, rotary wing, and flapping wing. Under rotary-wing micro aerial vehicles, coaxial contrarotating configurations with a stabilizer bar seem to provide excellent stability behavior in pitch and roll degrees of freedom. This paper presents the results of an experimental study performed on a coaxial-contrarotor helicopter model to evaluate the performance of the rotor system using different rotor blades. The thrust and power of the rotors in independent and coaxial configurations were observed. The percentage thrust loss in the coaxial configuration was seen to be dependent on the ratio of the upper- and lower-rotor revolutions per minute as well as the spacing between the rotors. A theoretical analysis using a nonuniform inflow model was developed, which corroborated very well with the experimental data. Using low-Reynolds-number drag coefficients for the airfoil, the estimated power consumption of the rotors was found to match very well with the experimental data. A closed-form solution using a uniform inflow model to estimate the thrust performance of a coaxial rotor is proposed, which also matches with the experimental observations.
机译：由于其在民用和军事领域的应用潜力以及设计微型飞行器的挑战，微型飞行器引起了极大的关注。微型飞行器的几种配置正在开发中，即固定翼，旋转翼和襟翼。在旋翼微型飞行器下，带有稳定杆的同轴反向旋转配置似乎在俯仰和侧倾自由度方面提供了出色的稳定性。本文介绍了在同轴对转直升机模型上进行的实验研究的结果，以评估使用不同旋翼桨叶的旋翼系统的性能。观察了独立和同轴配置的转子的推力和功率。同轴配置中的推力损失百分比被视为取决于每分钟上转子和下转子每分钟转数的比率以及转子之间的间距。建立了使用非均匀流入模型的理论分析，并与实验数据很好地证实了这一点。使用低雷诺数阻力系数的机翼，发现转子的估计功耗与实验数据非常吻合。提出了使用均匀流入模型来估计同轴转子的推力性能的封闭形式解决方案，该解决方案也与实验结果相吻合。

著录项

  • 来源
    《Journal of Aircraft》 |2013年第5期|1465-1480|共16页
  • 作者

    Puneet Singh; C. Venkatesan;

  • 作者单位

    Undergraduate Student, Department of Aerospace Engineering. Indian Institute of Technology, Kanpur, Uttar Pradesh 208 016, India;

    Professor and Head, Department of Aerospace Engineering. Indian Institute of Technology, Kanpur, Uttar Pradesh 208 016, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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