摘要
复杂结构飞行器的传统飞行载荷建模方法存在误差大、效率低的问题。考虑电桥指标及载荷方程指标对载荷模型的综合影响,提出一种飞行载荷改进建模方法,以多梁多墙结构为例,基于某型机机翼地面载荷校准试验数据建立载荷模型,将改进方法与传统方法计算的弯矩及剪力进行对比,结合试飞数据对改进方法所得模型进行验证。结果表明:该飞行载荷改进建模方法适用于复杂结构飞行器载荷建模,处理地面试验数据时能够提升载荷模型的精度和迭代稳定度,所得载荷模型可以用于飞行载荷测量及安全监控。
The traditional flight load modeling method of complex structure aircraft has the problems of large error and low efficiency.A flight load improved modeling method is proposed,which is comprehensively considering the influence of the bridge index and load equation index on the load model.Taking the multi-beam and multi-wall structure as an example,the load model based on the wing ground load calibration test data of a certain type of aircraft is built.The bending moment and shearing force of improved method and traditional method are compared.The model obtained by the improved method is verified with flight test data.The results show that the flight load improved modeling method is suitable for the load modeling of complex structure aircraft.The improved method can improve the accuracy and iterative stability of the load model while processing ground test data and the load model obtained by the improved method can be used for flight load measurement and safety monitoring.
作者
陈致名
唐宁
范华飞
CHEN Zhiming;TANG Ning;FAN Huafei(Aircraft Institute,Chinese Flight Test Establishment,Xi’an 710089,China)
出处
《航空工程进展》
CSCD
2022年第2期45-50,共6页
Advances in Aeronautical Science and Engineering
