摘要
使用六自由度摇摆台模拟0.8 m船载天线使用场景,搭建数据采集平台对故障方位轴承数据进行采集,以Rossler混沌数学模型为基础,结合Duffing方程优点,建立变形Rossler混沌数学模型,将故障信号加入混沌系统并计算其最大Lyapunov指数来识别故障信号,并增加故障频率进行动力学仿真,验证故障频率对船体的影响,为船载天线的故障诊断及实际应用提供一定的理论依据。
The 6⁃DOF swing platform is used to simulate the use scene of the 0.8 m shipborne antenna.A data acquisition platform is set up to collect the data of the faulty azimuth bearing.On the basis of Rossler chaotic mathematical model,a deformation Rossler chaotic mathematical model is established in combination with the advantages of Duffing equation.The fault signal is added to the chaotic system and its maximum Lyapunov exponent is calculated to identify the fault signal.The dynamic simulation was carried out by increasing the fault frequency to verify the influence of the fault frequency on the hull,which provides a certain theoretical basis for the fault diagnosis and practical application of shipborne antenna.
作者
郭刚涛
张正谦
孔萌
马新生
王淑萍
GUO Gangtao;ZHANG Zhengqian;KONG Meng;MA Xinsheng;WANG Shuping(Xi’an Aerospace Tianhui Data Technology Co.,Ltd.,Xi’an 710100,China)
出处
《现代电子技术》
2023年第7期18-21,共4页
Modern Electronics Technique
关键词
船载天线
故障诊断
动力学仿真
数据采集
数学模型
故障信号识别
故障频率
shipborne antenna
fault diagnosis
dynamics simulation
data acquisition
mathematic model
fault signal recognition
fault frequency
