无人机载光电平台隔振性能测试与分析  

Test and analysis of vibration characters of damper in EO platform of UAV

作　　者：王子辰 王东鹤[2] 朱纬[1] Wang Zichen;Wang Donghe;Zhu Wei(Shanghai Institute of Quality Inspection and Technical Research,Shanghai 200031,China;Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China)

机构地区：[1]上海市质量监督检验技术研究院,上海200031 [2]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《红外与激光工程》2024年第1期144-150,共7页Infrared and Laser Engineering

基　　金：国家自然科学基金项目(32060308)。

摘　　要：针对无人机载光电平台的安装特点,文中对平台及阻尼减振器特性进行了分析、建模与测试。首先,对光电平台阻尼减振器特性进行了介绍;其次,分析了安装阻尼减振器后的光电平台特性,并对阻尼减振器的运动特性进行建模,分析阻尼减振器安装布局与平台性能之间的关系;最后,结合具体某型光电平台及其配套阻尼减振器,给出了仿真结果及相同外部扰动条件下减振器安装位置对平台性能的测试结果。结果表明:相关研究对优化无人机载光电平台阻尼减振器布局及提升载荷整体性能具有积极的意义。Objective Absorber is a very commonly used component in UAV OE platform,because it can effectively absorb the vibration caused by the UAV,thereby enabling the photoelectric platform to obtain more stable and clear image or video.In the recent years,many scholars focus their attention on many kinds of damper in order to further improve the imaging quality of the OE platform.Non-angular displacement damper is designed for optimizing the performance of platform payload,but its practicality is limited by large volume and heavy weight.So traditional damping absorber is still the most widely used damper in OE platform at present.A lot of research have been conducted about the characters of damping absorber,but quantitative analysis to address the impact of vibration on optoelectronic platforms and how to optimize the installation layout of OE platform with damping absorber has not been carried out.Methods According to the characters of airborne OE payload,this paper analyzes and tests the angular characteristics of damping absorber that is related to the performance of airborne payload.First,the self-character of damper of EO payload is introduced.Second,the overall performance model of EO payload are established.Meanwhile,the modeling of motion characteristics is established and the factors that may affect the ability of airborne payload are analyzed during the installation layout of damping absorber.Many factors,such as stiffness,damping coefficient,installment-center-distance and the mass of payload,are promoted which determine the results of angular and linear displacement.Results and Discussions The results of simulation analysis show that the displacement of damper mainly occurs in the vertical direction instead of horizontal direction,and the displacement in horizontal direction is only2%in the vertical direction within the effective stroke of damper when the distance of rotation center R is set as200 mm,250 mm and 300 mm.The portable test system is mounted using a vibration table,an UAV OE platform with four da

关 键 词：无人机 光电平台 阻尼减振器 运动建模 性能测试 

分 类 号：V216.2[航空宇航科学与技术—航空宇航推进理论与工程]