所属单位：能源与动力学院
发表刊物：Vibroeng. Procedia
摘要：In view of the large maneuvering overload of the rotor system in Unmanned Aerial Vehicle (UAV), the dynamic characteristics of rotor system under large maneuvering overload conditions were analyzed in this paper. The finite element model of rotor system under large maneuvering overload was first established by Timoshenko beam element theory and finite element method. The motion differential equations of the rotor system were derived by Lagrange equation, and the additional damping matrix, stiffness matrix and excitation force were obtained. Critical speeds and unbalance response were calculated by characteristic equation method and Newmark-β numerical integration method respectively. The calculation results showed that the additional damping and stiffness leaded the critical speeds of the rotor system to change under large maneuvering flight, and the additional excitation force resulted in a certain static displacement of the whirling orbits. © 2019 Nan Zheng, et al.
ISSN号：2345-0533
是否译文：否
发表时间：2019-10-01
合写作者：Zheng, Nan,Kuang, Xi,Chen, Li-Jia,Liao, Xue-Min
通讯作者：罗贵火
发表时间：2019-10-01