Research and Performance Optimization of Jump-Takeoff in Autogyros

• Published in: Aerospace Vol. 10; no. 8; p. 680
• Main Authors: Wang, Yukun, Guo, Lingxi, Guo, Zhiming, Wu, Liaoni, Bing, Fuqiang, Hu, Quanwen, Sun, Zonghua
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.08.2023
• Subjects: 20th century; Accuracy; Aircraft; Autogiros; autogyro; Autogyros; Aviation; blade tip weighting; Blade tips; Blades; Design; Design and construction; Equipment and supplies; Flight control systems; Fluid dynamics; Helicopters; jump-takeoff; Libraries; Mathematical models; Optimization; Parameters; Rotation; Rotors; Simulation; Software; Takeoff; YASim; China
• ISSN: 2226-4310; 2226-4310
• DOI: 10.3390/aerospace10080680

The main focus of this article is on the jump-takeoff method for autogyros. On the basis of a high-confidence autogyro model, we design a jump-takeoff simulation experiment to study and optimize jump-takeoff performance. Using a simplified version of blade element theory, we conduct secondary development on the YASim dynamics library in FlightGear software and construct a highly accurate auto-rotation rotor model. The implementation of jump-takeoff requires appropriate control parameters for collective angle and pre-rotation speed. We explore the minimum collective angle condition and minimum pre-rotation speed condition to obtain the jump-takeoff envelope, and we investigate the effect of changes in control parameters within the jump envelope on jump-takeoff performance. Furthermore, we optimize the jump-takeoff performance by varying the rotor diameter and blade tip weighting. Through this study of jump-takeoff performance, we are able to determine appropriate control parameters and rotor parameters for jump-takeoff schemes, establish parameter settings for simulations of jump-takeoff tests, and thereby lay the foundation for future experimental investigations of jump-takeoff of actual autogyros.