Flight Climb Transition Height from Constant Speed and Mach Segments
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Solution Overview
Problem
Existing methods for determining transition height elements in aircraft flight climbing stages rely on recommended values that do not account for actual flight situations, leading to suboptimal transition height calculations.
Innovation Solution
A method based on constant value segment identification, which involves extracting and interpolating speed and Mach components from flight track data, identifying constant-speed and constant-Mach segments, and calculating the transition height using these segments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If recommended values of transition height elements are used to determine transition height, then the calculation process is simple, but the determination accuracy does not reflect actual flight conditions
Solution Approach 1:
The system uses the aircraft's own flight data (speed and Mach number measurements from its sensors) to automatically determine transition height elements, eliminating the need for external recommended values. The aircraft essentially determines its own transition height based on its actual flight characteristics.
Solution Approach 2:
The system continuously monitors the aircraft's speed and Mach number during flight, uses this feedback information to identify constant value segments, and adjusts the transition height determination based on actual flight performance. This closed-loop approach ensures accuracy reflects real conditions.
2Measurement precision
If constant value segment identification method is used to determine transition height elements, then the transition height determination accuracy reflects real flight conditions, but the calculation process becomes more complex
Solution Approach 1:
The flight data is divided into discrete segments based on constant speed and constant Mach number periods. By segmenting the continuous flight data into identifiable constant value segments, the system can systematically analyze each segment to determine transition height elements without overwhelming complexity.
Solution Approach 2:
The system performs preliminary identification of constant value segments in speed and Mach number data before calculating transition height. This preliminary processing organizes the data structure in advance, making the subsequent transition height calculation more straightforward despite the initial data processing requirements.
Data Source
AI summary
A method for determining transition height elements in a flight climbing stage based on constant value segment identification comprises the steps of splitting a speed component and a Mach component from a flight track, and performing linear interpolation on the two respectively; discretizing the interpolated speed component, and setting a threshold for filtering to obtain a speed discrete value set; identifying a constant-speed segment, and acquiring a maximum constant-speed value and a maximum moment of the constant-speed segment; keeping the Mach component of the track with a time no less than the constant-speed maximum moment; discretizing the kept Mach components, and filtering to obtain a Mach discrete value set; identifying a constant-Mach segment, and acquiring a constant-Mach value corresponding to a minimum moment of the constant-Mach segment; and calculating a transition height in the flight climbing stage according to the constant-speed value and the constant-Mach value obtained.