滑跳板形狀設計對飛機起飛之影響分析

Influence of Shape Design of Ski-jump Ramp for Aircraft Take-off

孟睿哲(JUI-CHE MENG)

指導教授 ： 康淵 ； 胡聖彥

中原大學/工學院/機械工程學系/碩士(2022年)

https://doi.org/10.6840/cycu202201672

摘要

本文根據飛機運動學及動力學以及飛機建模方法，建立了飛機以陸基滑跳板滑躍起飛之5自由度無側滑力學模型，其中包括了起落架彈簧與阻尼的影響。將飛機的建模及模擬，依據飛機以滑跳板滑躍起飛階段分為三個部分：前輪及主輪滑跑段、主輪滑跑段與三輪離地之空中飛行，利用Runge–Kutta時間積分法以使用Matlab軟體建立分析程式，模擬某型飛機進行了數值分析，探討飛機設計參數及滑跳板設計參數變化對飛機航跡、起飛距離及起落架負載影響，分析結果產生的時間歷程數據有，飛機水平、垂直的位移、速度與加速度，前、主起落架反支力，起落架負載峰值，離板距離、時間、離板瞬間飛機速度、角速度、離板後飛行軌跡及速度、航跡角、攻角，以及全程之氣動升力、阻力、俯仰力矩之變化。

關鍵字

滑躍起飛 ； 滑跳板 ； 起落架

並列摘要

Based on aircraft kinematics and dynamics and aircraft modeling methods, this paper establishes a 5-DOF non-slip mechanical model for aircraft to take off with land-based ski jumps, including the effects of landing gear springs and damping. The modeling and simulation of the aircraft is divided into three parts according to the take-off stage of the aircraft using the ski jumping board: the front wheel and the main wheel skating section, the main wheel skating section and the three-wheel off-the-ground air flight, using the Runge – Kutta time integration method to using Matlab software to establish an analysis program, simulate a certain type of aircraft and carry out numerical analysis to discuss the influence of aircraft design parameters and ramp design parameters on the aircraft track, take-off distance and landing gear load. The time history data generated by the analysis results are: aircraft level, vertical displacement, speed and acceleration, front and main landing gear reaction force, peak load of landing gear, distance from the board, time, aircraft speed at the moment of leaving the board, angular velocity, flight path and speed after leaving the board, track angle, angle of attack, and the changes in the aerodynamic lift, drag, and pitching moment of the whole process.

並列關鍵字

ski-jump take off ； ramp ； landing gear

參考文獻

[1] T. C. Lee, J. W. Clark, C. P. Senn, United States navy ski jump experience and future applications.

[2] Elijah W. Turner, Aircraft operations from runways with inclined ramps (ski-jump). WRDC-TM-90-337-FIBE, Flight Dynamics Directorate Wright Lab, Air Force Command, Wright Patterson Air Force Base, Ohio, May 1991.

[3] Hernando, J. L. and Martinez-Val, R, Carrier suitability of land-based aircraft. 28th International Congress of the Aeronautical Sciences.

[4] 房興波，聶宏，于浩，艦載機前輪滑躍起飛技術，南京航空航太大學學報，第43卷第4期，pp. 453-457，2011年8月。

[5] Li, J, Liu, T, Guo, H., Dynamic analysis of carrier-based UAVs with ski-jump launch. International Conference on Electrical Automation and Mechanical Engineering, Journal of Physics: Conference Series 1626 012146, 2020.