Automatic Continuous Thrust Control for Supersonic Transport Takeoff Noise Reduction

IF 1.5 3区工程技术 Q2 ENGINEERING, AEROSPACE

Journal of Aircraft Pub Date : 2023-11-05 DOI:10.2514/1.c037394

Laurens J. A. Voet, Prakash Prashanth, Raymond L. Speth, Jayant S. Sabnis, Choon S. Tan, Steven R. H. Barrett

引用次数: 0

Abstract

Advanced takeoff trajectories are proposed for supersonic transport noise reduction by capitalizing on excess engine thrust and improved aerodynamic efficiency at higher takeoff speeds. These novel trajectories use i) automatic continuous control of thrust, ii) increased takeoff speed, and iii) reduced cut-back altitude, compared to conventional pilot-initiated discrete thrust cut-back procedures currently used for subsonic transport. In this paper, we develop an optimal control framework to assess the attributes of effective takeoff trajectories for supersonic transport that yield minimum noise levels. We quantify the noise reduction potential of advanced takeoff trajectories for the eight-passenger, 55-metric-ton, Mach-1.4 NASA Supersonic Technology Concept Airplane. For the aircraft examined, these advanced takeoff trajectories enable a cumulative certification noise reduction of 10.6 EPNdB, which is insufficient to meet current subsonic transport noise limits.

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超音速运输机起飞降噪的自动连续推力控制

提出了一种先进的起飞轨迹，利用发动机的超额推力和更高起飞速度下的气动效率来降低超音速运输噪声。与目前用于亚音速运输的传统飞行员启动的离散推力削减程序相比，这些新型轨迹使用i)自动连续控制推力，ii)提高起飞速度，iii)降低削减高度。在本文中，我们开发了一个最优控制框架来评估产生最小噪声水平的超音速运输有效起飞轨迹的属性。我们量化了8名乘客、55吨、马赫1.4的NASA超音速技术概念飞机的先进起飞轨迹的降噪潜力。对于测试的飞机，这些先进的起飞轨迹使累积认证噪声降低10.6 EPNdB，这不足以满足当前亚音速运输噪声限制。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Aircraft 工程技术-工程：宇航

CiteScore

4.50

自引率

31.80%

发文量

141

审稿时长

6 months

期刊介绍： This Journal is devoted to the advancement of the applied science and technology of airborne flight through the dissemination of original archival papers describing significant advances in aircraft, the operation of aircraft, and applications of aircraft technology to other fields. The Journal publishes qualified papers on aircraft systems, air transportation, air traffic management, and multidisciplinary design optimization of aircraft, flight mechanics, flight and ground testing, applied computational fluid dynamics, flight safety, weather and noise hazards, human factors, airport design, airline operations, application of computers to aircraft including artificial intelligence/expert systems, production methods, engineering economic analyses, affordability, reliability, maintainability, and logistics support, integration of propulsion and control systems into aircraft design and operations, aircraft aerodynamics (including unsteady aerodynamics), structural design/dynamics , aeroelasticity, and aeroacoustics. It publishes papers on general aviation, military and civilian aircraft, UAV, STOL and V/STOL, subsonic, supersonic, transonic, and hypersonic aircraft. Papers are sought which comprehensively survey results of recent technical work with emphasis on aircraft technology application.

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