...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Aeronautical Journal >Enhancement of light aircraft 6 DOF simulation using flight test data in longitudinal motion
【24h】

Enhancement of light aircraft 6 DOF simulation using flight test data in longitudinal motion

机译：使用飞行测试数据在纵向运动中提高光飞机6 DOF模拟

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

This paper proposes a procedure to improve the accuracy of the light aircraft 6 DOF simulation model by implementing model tuning and aerodynamic database correction using flight test data. In this study, the full-scale flight testing of a 2-seater aircraft has been performed in specific longitudinal manoeuver for model enhancement and simulation validation purposes. The baseline simulation model database is constructed using multi-fidelity analysis methods such as wind tunnel (W/T) test, computational fluid dynamic (CFD) and empirical calculation. The enhancement process starts with identifying longitudinal equations of motion for sensitivity analysis, where the effect of crucial parameters is analysed and then adjusted using the model tuning technique. Next, the classical Maximum Likelihood (ML) estimation method is applied to calculate aerodynamic derivatives from flight test data, these parameters are utilised to correct the initial aerodynamic table. A simulation validation process is introduced to evaluate the accuracy of the enhanced 6 DOF simulation model. The presented results demonstrate that the applied enhancement procedure has improved the simulation accuracy in longitudinal motion. The discrepancy between the simulation and flight test response showed significant improvement, which satisfies the regulation tolerance.
机译：本文提出了一种通过使用飞行测试数据实现模型调谐和空气动力学数据库校正来提高光飞机6 DOF仿真模型的准确性的过程。在这项研究中，在特定的纵向制动器中进行了2座飞机的全尺度飞行测试，用于模型增强和模拟验证目的。基线仿真模型数据库使用多保真分析方法（如风隧道（W / T）测试，计算流体动态（CFD）和经验计算）构建。增强过程开始识别用于灵敏度分析的纵向运动的纵向方程，其中分析了关键参数的效果，然后使用模型调谐技术进行调整。接下来，应用经典的最大可能性（ML）估计方法来计算来自飞行测试数据的空气动力学衍生物，这些参数用于校正初始空气动力学表。引入了模拟验证过程以评估增强型6 DOF仿真模型的准确性。所提出的结果表明，应用的增强程序在纵向运动中提高了模拟精度。模拟和飞行试验反应之间的差异显示出显着的改善，这满足了调节耐受性。

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