年份 | 2018 |
学科 | 工程力学 Engineering Mechanics |
国家/州 | United State of America |
Suppression of Aeroelastic Instabilities in High Ratio Wing Structures Using Principal Component Analysis
The aeronautical industry struggles to find a balance between making aircraft efficient and durable simultaneously, high-ratio wings are able to provide efficiency at the loss of structural integrity. Aircraft wings are vulnerable to fatigue at high speeds and turbulent conditions, these conditions lead to limit cycle oscillations and wing flutter putting stress on the structure of wing and decreasing aircraft efficiency.
I designed a wing structure in conjunction with a machine learning algorithm that is optimized to predict turbulent conditions based off weather radar data from the cockpit and modify surface controls on the aircraft to proactively handle unfavorable regions of air. I simulated each wing in real-world scenarios and collected data on: dynamic pressure, turbulence intensity and length, sheer stress, and velocity for all three axes. By preventing aircraft from entering limit cycle oscillations or conditions where the wing starts to flex, it protects the structural integrity of the wing and improves aircraft performance.
To simulate all flow tests, I used SolidWorks and SolidWorks Flow Simulation 2016. I 3D-Printed a wing, and created a functioning wing using a series of servo motors, altimeter/barometric/temperature sensor, and 9-axis gyroscope/magnetosphere/accelerometer sensor, and an Arduino board. The results showed that the time taken to overcome a limit cycle oscillation in the control group wing was 539 iterations compared to 166 iterations for the experimental machine learning wing. The data suggests the experimental wing and machine learning algorithm would prove effective in reducing the stress on wing structures and increase aircraft performance and efficiency.
英特尔国际科学与工程大奖赛,简称 "ISEF",由美国 Society for Science and the Public(科学和公共服务协会)主办,英特尔公司冠名赞助,是全球规模最大、等级最高的中学生的科研科创赛事。ISEF 的学术活动学科包括了所有数学、自然科学、工程的全部领域和部分社会科学。ISEF 素有全球青少年科学学术活动的“世界杯”之美誉,旨在鼓励学生团队协作,开拓创新,长期专一深入地研究自己感兴趣的课题。
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Studies that focus on the science and engineering that involve movement or structure. The movement can be by the apparatus or the movement can affect the apparatus.
Aerospace and Aeronautical Engineering (AER): Studies involving the design of aircraft and space vehicles and the direction of the technical phases of their manufacture and operation.
Civil Engineering (CIV): Studies that involve the planning, designing, construction, and maintenance of structures and public works, such as bridges or dams, roads, water supply, sewer, flood control and, traffic.
Computational Mechanics (COM): A study that applies the discipline and techniques of computer science and mathematics to solve large and complex problems in Engineering Mechanics.
Control Theory (CON): The study of dynamical systems, including controllers, systems, and sensors that are influenced by inputs.
Ground Vehicle Systems (VEH): The design of ground vehicles and the direction of the technical phases of their manufacture and operation.
Industrial Engineering-Processing (IND): Studies of efficient production of industrial goods as affected by elements such as plant and procedural design, the management of materials and energy, and the integration of workers within the overall system. The industrial engineer designs methods, not machinery.
Mechanical Engineering (MEC): Studies that involve the generation and application of heat and mechanical power and the design, production, and use of machines and tools.
Naval Systems (NAV): Studies of the design of ships and the direction of the technical phases of their manufacture and operation.
Other (OTH): Studies that cannot be assigned to one of the above subcategories. If the project involves multiple subcategories, the principal subcategory should be chosen instead of Other.
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