Research on Parameters of the Trailing VLF Antenna Using Lumped-Mass Method

2018 2nd International Conference on Advanced Technologies in Design, Mechanical and Aeronautical Engineering

工业技术;机械制造;航空航天工程

Ma, Tielin^1,2 ; Wei, Zhihua^3 ; Chen, Haibing^4 ; Wang, Xiangsheng^3

Institute of Unmanned System, Beihang University, Beijing

100191, China^1

Key Lab. of Adv. Technol. of Intelligent Unmanned Flight Syst. of Min. of Indust. and Info. Technol., China^2

School of Aeronautic Science and Engineering, Beihang University, Beijing

100191, China^3

School of Transportation Science and Engineering, Beihang University, Beijing

100191, China^4

关键词: Bank angles;    Basic parameters;    Flight speed;    Lumped mass method;    Primary design;    Radiation intensity;    Very low frequency;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/408/1/012016/pdf
DOI  :  10.1088/1757-899X/408/1/012016

来源: IOP

【 摘 要 】

The verticality of Very Low Frequency (VLF) antenna is an important factor to decide the radiation intensity of airborne VLF communication system, and the close relation of which with the parameters of airplane, towed antenna, and drogue is an important issue. Considering from the aspect of system design, the flight speed and the drogue's mass are primary design variables whereas the bank angle constrained by airplane's maneuverability and cable's basic parameters decided by design requirement can be chosen initially. After modelling the trailing system with lumped-mass method, sensibility analyzation about relations of the verticality of antenna with the flight speed and the drogue's mass are carried on. The result is found that when a faster flight speed is chosen, it's not easy to gain enough verticality required, and leads to a conclusion that, flight speed dominates the verticality which should be decided seriously whereas the drogue's mass poses much less effect.