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首页> 外文期刊>Journal of guidance, control, and dynamics >Piloted Simulator Evaluation of Safe Flight Envelope Display Indicators for Loss of Control Avoidance
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Piloted Simulator Evaluation of Safe Flight Envelope Display Indicators for Loss of Control Avoidance

机译：对安全飞行包络显示指示器进行模拟飞行员评估，避免失控

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In recent studies, it has been observed that loss of control in flight is the most frequent primary cause of accidents. One of the technologies that will significantly reduce the risk of loss of control accidents is onboard safe flight envelope estimation. An efficient method for estimating the safe flight envelope for impaired aircraft has been implemented and evaluated in piloted simulations. This modular method is based on a physical approach. The aerodynamic system parameters are estimated from realistic noisy sensor measurements based on a probabilistic approach. These parameters are then used for efficient model-based computations of the trim envelope as a set of equilibrium points that can be attained by means of admissible inputs. The safe maneuverability limitations are extended beyond the trim envelope through a robust reachability analysis derived from an optimal control formulation. These trim and maneuvering envelope limits can be used for multiple purposes. For example, they can be conveyed to the flight crew in an intuitive way by incorporating this information in the primary flight display. These display features have been evaluated in the Advanced Concepts Flight Simulator at Ames Research Center as part of a larger research initiative. Commercial airline crews flew multiple challenging approach and landing scenarios in a relevant environment Results show that the additional display features contribute significantly to flight crew awareness and avoiding loss of control in flight.
机译：在最近的研究中，已经观察到飞行失控是最常见的事故主要原因。可以大大降低失控事故风险的技术之一就是机载安全飞行包线估计。在飞行员模拟中已经实现并评估了一种有效的方法来估算受损飞机的安全飞行包线。此模块化方法基于物理方法。空气动力学系统参数是基于概率方法从实际的噪声传感器测量值估计的。然后，这些参数将用于调整包络线的有效的基于模型的计算，作为可通过允许输入获得的一组平衡点。通过从最佳控制公式得出的可靠的可达性分析，将安全性操纵性限制扩展到了装饰范围之外。这些修整和机动包络线限制可用于多种用途。例如，可以通过将这些信息合并到主要飞行显示中，以直观的方式将其传达给飞行机组。这些显示功能已在埃姆斯研究中心的高级概念飞行模拟器中进行了评估，这是一项较大研究计划的一部分。商业航空机组人员在相关环境中飞行了多种具有挑战性的进近和着陆方案。结果表明，附加的显示功能极大地提高了机组人员的意识并避免了飞行失控。

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