摘要
文章基于无人机尾翼舵面悬挂接头结构,采用有限元软件建立几何模型,施加边界约束条件及气动载荷对其进行静力学分析;然后对其进行随机振动响应分析,研究不同频率下的最大振动形变量,并通过拓扑优化的设计方法,对舵面悬挂接头结构进行轻量化设计;将拓扑优化后的结果导入三维软件模型中,对其进行几何重构。结果表明:尾翼舵面悬挂接头产生最大变形量为0.495 mm,最大应力为34.6 MPa,其连接区域复合材料最大X向应变为280.6με,最大Y向应变为284.0με,最大剪应变为381.2με;在100、200 Hz时,随机振动响应出现峰值,结构易产生破坏和失效;舵面悬挂接头经过轻量化设计后,其体积分数减少26.80%,且优化后的舵面悬挂接头结构是合理可靠的。
Based on the rudder surface suspension joint structure of UAV,a geometric model is established by using finite element software,and the static analysis is carried out by applying boundary constraints and aerodynamic loads.Then a random vibration response analysis is carried out,the maximum vibration shape variable at different frequencies is investigated,and the rudder surface suspension joint structure is designed lightweight through the design method of topology optimization.The results of topology optimization are imported into the 3D software model for geometrically reconstructed.The results show that the maximum deformation of the rudder suspension joint of the tail wing is 0.495 mm,the maximum stress is 34.6 MPa,the maximum X-direction strain of the composite material in the connection area is 280.6με,the maximum Y-direction strain is 284.0με,and the maximum shear strain is 381.2με;the random vibration response peaks at the frequency of 100 Hz and 200 Hz,and the structure is prone to damage and failure;the volume fraction of the rudder suspension joint is reduced by 26.80%after lightweight design,and the optimized rudder surface suspension joint structure is reasonable and reliable.
作者
王伟
金晶
黄盼伟
WANG Wei;JIN Jing;HUANG Panwei(Beijing Beihang Tianyu Changying UAV Technology Co.,Ltd,Beijing 100089,China)
出处
《海军航空大学学报》
2024年第2期275-282,共8页
Journal of Naval Aviation University
关键词
静力学分析
随机振动响应
轻量化设计
几何重构
statics analysis
random vibration response
lightweight design
geometric reconstruction
