光纤环绕制过程振动影响分析  

Vibration Effect Analysis of Fiber Coil Winding Process

作　　者：范运强[1] 董全林[1] 陈楠[1] 孟凡念[1] 张春熹[1] 刘丽国 贾志军[3] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院 [2]93796部队 [3]93132部队

出　　处：《仪表技术与传感器》2014年第5期96-98,共3页Instrument Technique and Sensor

摘　　要：介绍了光纤陀螺光纤环的绕制原理,建立了光纤张力系统的力学模型和振动模型,通过分析建立了光纤张力的动态方程和振动特性方程,同时分析了光纤绕制振动对光纤陀螺精度的影响,并对其影响进行了仿真计算,结果表明影响陀螺精度的光纤环绕制振动因素有振幅、频率比、阻尼比,其中振幅大小与影响程度成线性关系;而阻尼的存在则降低了振动造成的影响,当阻尼比小于0.5时,频率比的影响才能体现出来;当频率比接近1时,阻尼比的影响较为明显。通过各参数之间的组合可以有效降低绕制振动带来的影响,对光纤环的绕制具有一定的指导作用。Fiber tension control principle was introduced.Fiber tension mechanical model and vibratory model were established and analyzed.On top of that,fiber tension dynamic equations and vibration equation were established and the impact of fiber coil winding process vibration was analyzed.Finally,Matlab was used to simulate harmonic vibration impact.The results show that amplitude,frequency ratio and damping ratio will affect gyro accuracy.Amplitude and the influence has a linear relationship,the influence will be stronger if amplitude is bigger.While,the presence of damping reduced harmonic vibration impact,and until the damping ratio is less than 0.5,did the frequency ratio impact can be reflected.Only the frequency ratio is close to 1,did the damping ratio influence is obvious.As a result,controlling vibration parameters can effectively reduce the impact of simple vibration,which has a guiding role in fiber ring winding process.

关 键 词：光纤环 张力控制 力学模型 振动模型 简谐振动 振动影响 

分 类 号：TH7[机械工程—仪器科学与技术] V24[机械工程—精密仪器及机械]