高准确度稳定平台的分析与设计

根据船用稳定平台高准确度稳定性的需要,设计了"粗精组合式"的两级稳定平台方案。"粗级稳定平台"采用基于二自由度挠性陀螺和加速度计的惯性稳定平台方式。由于受到陀螺本身准确度的影响,"粗级稳定平台"只能达到一个初步的稳定状态,保证目标在测量设备的视场范围内。为达到高准确度跟踪测试目的,避免由于平台基座的运动干扰而使视轴发生晃动,造成图像模糊等的影响,设计"精级稳定平台"来实现高准确度稳定功能。对粗精组合的两级稳定平台进行充分分析,并以"精级稳定平台"为例,详细介绍了其结构设计,并应用有限元软件对设计结果进行验证。

The Analysis and Design of High-accuracy Stable Platform

According to the demand of high accuracy stabilized platform of shipborne,combining two-stage stabilized platform scheme was designed.Coarse stage stabilized platform is an intestinally stabilized platform including a two-degree-of-freedom gyro and two accelerometres.For the connatural precision of the gyro,a basal steady state was obtained by the coarse stage stabilized platform which ensured seeing the target.In order to reach the high-accuracy target tracking,and avoiding the shake of the sight axis,and result in the blurry image,the accurate stage stabilized platform was designed.Combing two-stage stabilized platform is analyzed and designed.The structural design and ANSYS analyses were introduced and analyzed particularly.