摘要
无人机弹射起飞过程中,前向冲击较大,常常导致天向和横侧向陀螺仪性能下降甚至损坏,对高精度陀螺仪的影响尤其严重,使得飞行控制系统失效,严重影响无人机飞行安全。以多个陀螺仪,精度高低搭配,构成冗余测量组件,是提高天向和横侧向冲击可靠性的有效途径,但需要对冗余结构进行优化设计。引入了兼顾冲击可靠性和测量精度的评估指标函数,优化了冗余测量组件构型及其参数。通过仿真验证,该冗余构型在保证测量精度的前提下显著提高了冲击可靠性。所引入的构型评估函数在无人机飞行控制系统多目标优化中具有一定的普适性,对提高飞行控制系统及无人机整体可靠性和飞行品质具有明显的改善作用。
In the process of Unmanned Aerial Vehicle （UAV） catapult assisted takeoff, the front impact is large, which often leads to the performance degradation of the x-axis and the z-axis gyroscopes. With multiple gyroscopes, high precision and low precision, it is an effective way to improve the reliability of the x-axis and the z-axis impact. The paper introduced the evaluation index function to balance the impact reliability and measurement accuracy, and the configuration and parameters of redundant measurement components were optimized. The simulation results show that the redundancy configuration can significantly improve the impact reliability under the premise of ensuring the ac- curacy of the measurement. The configuration evaluation function has a certain universality in the multi objective opti- mization of UAV flight control system, which has a significant effect in the improvement of flight control system and the overall reliability and flight quality.
出处
《计算机仿真》
CSCD
北大核心
2016年第7期121-125,170,共6页
Computer Simulation
基金
国家自然科学基金项目(61274117)
关键词
弹射起飞
冲击可靠性
陀螺仪
冗余构型
评估指标
Catapult assisted takeoff
Impact reliability
Gyroscope
Redundancy configuration
Evaluation index function
