摘要
机载光电平台安装在飞行器外部,以捕获、跟踪和记录地面目标,并获取图像;还用于目标测角和目标自动跟踪。光电平台必须克服任何外部阻力的扰动,使其内部的光学系统光轴保持稳定。在一定的飞行条件下,光电平台在空中随飞行器飞行时,会产生作用于自身的空气阻力,空气阻力对光电平台旋转体-方位轴和俯仰轴的影响很大,为确保视轴的稳定,保证设备的跟踪和成像质量的同时,减轻重量,合理选择转轴的驱动元器件,必须对光电载荷平台所受空气阻力及风阻力矩进行分析、计算。
The airborne photoelectric platform is mounted on aircraft to capture,track and record targets on the ground, and obtain the images of the target.It also measure locations of the target and follow the target automatically.Airborne photoelectric platform must overcome any disturbances to keep the stabilization of line of sight of optical system.Under certain air conditions,airborne photoelectric platform is affected by air drags,which can influence axis of azimuth and pitch greatly. To keep the stabilization of line of sight and guarantee tracking and image quality,to alleviate weight,as well as to select driving component reasonably,air drag and drag torque acted on airborne photoelectric platform must be analyzed and calculated.This article introduces a method of the drag analyzing and calculating.
出处
《长春理工大学学报（自然科学版）》
2011年第2期80-82,89,共4页
Journal of Changchun University of Science and Technology(Natural Science Edition)
基金
国家863高科技研究发展计划项目(2008AA121803)
