Các bánh xe càng mũi hạ cánh ba bánh đã được cấu hình ưa thích cho các UAV. Các tính năng hấp dẫn nhất của loại hình này undercarriages là tính ổn định cao trong quá trình phanh, diễn tập trên mặt đất. Kết quả của nghiên cứu này chỉ ra rằng bộ phận hạ cánh | 14th National Conference on Machines and Mechanisms NaCoMM09 NIT Durgapur India December 17-18 2009 NaCoMM-2009-TKAj2 Landing Gear Layout Design for Unmanned Aerial Vehicle Akhilesh Jha SDET Division ADE DRDO Bangalore India Corresponding author email akhilsdet@ Abstract Aircraft landing gear mechanism serves several design purpose such as supporting the weight of aircraft providing rolling chassis taxiing and shock absorption function especially during takeoff and landing etc. The present study carried out to layout design of landing gear system for unmanned aerial vehicle UAV at conceptual design stage. The nose wheel tricycle landing gear has been the preferred configuration for UAV. The most attractive feature of this type of undercarriages is the improved stability during braking and ground maneuvers. The results of present study indicated that landing gear stability could be improved by longer wheel axle stiffer damping mechanism and smaller wheel mass and lower aircraft sinking velocity. The present approach has been following the recommendations of the previous design of landing gear layout of other aircraft and international standard federal aviation regulations FAR . More work to be done to prove the viability of this conceptual layout design. Detailed results needed further simulation study for validations. Keywords UAV Landing gear stability Shock absorber Tip back angle Landing gear load factor. 1 Introduction This section contains the basic definition classification and function of unmanned aerial vehicle and landing gear systems. Unmanned aerial vehicle An unmanned aerial vehicle UAV commonly referred to is a remotely piloted aircraft. UAVs come in two class some are controlled from a remote location and others fly autonomously based on pre-programmed flight. There is a wide variety of UAV shapes sizes configurations and characteristics. UAVs perform a wide variety of functions. The majority of these functions are some form of remote .
