摘要
采用有限元方法对装载于某无人机平台的测云雷达结构进行动力学分析研究。针对具体的机载平台讨论振动环境对雷达结构的影响,依据GJB150.16计算振动的加速度功率谱密度值,并以此为有限元分析的输入,进行雷达结构的模态分析、随机振动分析,又依据GJB150.18中的激励波形进行冲击响应分析,得到结构的应变及应力响应,为该型无人机载测云雷达总体结构的刚强度设计提供了重要的理论依据。
Dynamics analysis of UAV cloud radar structure is done by a finite element method in this paper. The vibration environment of the specific airborne platform has an effect on the radar structure. The acceleration power spectral density is calculated according to GJB150. 16,and as the input of finite element analysis,the mode analysis and random vibration analysis of radar structure are done,according to the impulse curve of GJB150. 18,the shock analysis is done too. The deformation and stress response of the structure is got. Important theory foundation for the design of the stiffness and strength of the UAV cloud radar structure is provided.
出处
《测绘通报》
CSCD
北大核心
2014年第S1期94-98,共5页
Bulletin of Surveying and Mapping
