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Helicopter flight simulation motion platform requirements.

机译：直升机飞行模拟运动平台要求。

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摘要

Flight simulators attempt to reproduce in-flight pilot-vehicle behavior on the ground. This reproduction is challenging for helicopter simulators, as the pilot is often inextricably dependent on external cues for pilot-vehicle stabilization. One important simulator cue is platform motion; however, its required fidelity is unknown. To determine the required motion fidelity, several unique experiments were performed. A large displacement motion platform was used that allowed pilots to fly tasks with matched motion and visual cues. Then, the platform motion was modified to give cues varying from full motion to no motion. Several key results were found. First, lateral and vertical translational platform cues had significant effects on fidelity. Their presence improved performance and reduced pilot workload. Second, yaw and roll rotational platform cues were not as important as the translational platform cues. In particular, the yaw rotational motion platform cue did not appear at all useful in improving performance or reducing workload. Third, when the lateral translational platform cue was combined with visual yaw rotational cues, pilots believed the platform was rotating when it was not. Thus, simulator systems can be made more efficient by proper combination of platform and visual cues. Fourth, motion fidelity specifications were revised that now provide simulator users with a better prediction of motion fidelity based upon the frequency responses of their motion control laws. Fifth, vertical platform motion affected pilot estimates of steady-state altitude during altitude repositionings. This refutes the view that pilots estimate altitude and altitude rate in simulation solely from visual cues. Finally, the combined results led to a general method for configuring helicopter motion systems and for developing simulator tasks that more likely represent actual flight. The overall results can serve as a guide to future simulator designers and to today's operators.
机译：飞行模拟器试图在地面上重现飞行中的飞行员行为。对于直升机模拟器来说，这种再现是具有挑战性的，因为飞行员通常不可避免地依赖于外部提示来稳定飞行员。模拟器的一个重要提示是平台运动。但是，其保真度未知。为了确定所需的运动保真度，执行了几个独特的实验。使用了大排量运动平台，使飞行员能够以匹配的运动和视觉提示来飞行任务。然后，修改平台运动以提供从全运动到无运动的提示。发现了几个关键结果。首先，横向和纵向翻译平台提示对保真度有重要影响。他们的存在改善了性能并减少了飞行员的工作量。其次，偏航和旋转平台提示不如平移平台提示重要。特别地，偏航旋转运动平台提示在改善性能或减少工作量方面根本没有用。第三，当侧向平移平台提示与视觉偏航旋转提示结合时，飞行员认为平台在不旋转时仍在旋转。因此，通过适当地结合平台和视觉提示，可以使模拟器系统更有效。第四，对运动逼真度规范进行了修订，现在可以根据其运动控制定律的频率响应为模拟器用户提供更好的运动逼真度预测。第五，垂直平台运动会影响飞行员在海拔调整期间对稳态海拔的估计。这驳斥了飞行员仅通过视觉提示来估计模拟中的高度和高度率的观点。最后，合并的结果导致了一种用于配置直升机运动系统和开发更可能代表实际飞行的模拟器任务的通用方法。总体结果可以为将来的模拟器设计人员和当今的操作人员提供指导。

著录项

  • 作者

    Schroeder, Jeffery Allyn.;

  • 作者单位

    Stanford University.;

  • 授予单位 Stanford University.;
  • 学科 Engineering Aerospace.
  • 学位 Ph.D.
  • 年度 1998
  • 页码 135 p.
  • 总页数 135
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空、航天技术的研究与探索;
  • 关键词

  • 入库时间 2022-08-17 11:48:38

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