【摘要】：在慣性導(dǎo)航系統(tǒng)中,由于光纖陀螺儀具有體積小、啟動(dòng)快、靈敏度高和全固態(tài)等優(yōu)點(diǎn),使得其取代傳統(tǒng)的機(jī)械陀螺儀和電子陀螺儀,并在飛行器控制、潛艇定位、車輛導(dǎo)航等各大領(lǐng)域得到廣泛應(yīng)用。光纖環(huán)(光纖敏感線圈)是光纖陀螺儀光路部分的光學(xué)核心部件,光纖環(huán)繞制工藝的優(yōu)劣會(huì)直接影響高精度光纖陀螺儀的研制開(kāi)發(fā)。本文針對(duì)光纖環(huán)繞制過(guò)程中繞制張力和滯后角的大小對(duì)光纖環(huán)繞制質(zhì)量的影響進(jìn)行研究,在分析光纖環(huán)繞制方式和繞制設(shè)備各部件運(yùn)動(dòng)方式的基礎(chǔ)上,對(duì)光纖環(huán)繞制工藝提出優(yōu)化設(shè)計(jì)方案,主要包括:1)研究光纖繞制過(guò)程中光纖應(yīng)力的變化,分析繞制張力的具體控制要求,建立繞制張力產(chǎn)生的數(shù)學(xué)模型,通過(guò)分析繞制張力產(chǎn)生波動(dòng)原因,提出采用舞蹈輪微控裝置進(jìn)行繞制張力波動(dòng)的縮小,并分析其具體的控制方法,實(shí)現(xiàn)繞制張力優(yōu)化。2)分析繞制過(guò)程中各類繞制缺陷產(chǎn)生的原因,建立滯后角的數(shù)學(xué)模型,根據(jù)光纖環(huán)繞制實(shí)時(shí)監(jiān)測(cè)裝置的工作原理,分別提出繞制過(guò)程和繞制初始時(shí)刻滯后角的控制方法。經(jīng)實(shí)驗(yàn)數(shù)據(jù)分析得到該補(bǔ)償方法可以完成無(wú)缺陷纏繞,實(shí)現(xiàn)高精度排線。3)分析降低光纖環(huán)內(nèi)部應(yīng)力的具體繞制方法,根據(jù)光纖環(huán)內(nèi)部光纖受力分析建立光纖環(huán)的物理模型,并通過(guò)采用有限元軟件仿真各類繞制張力變化條件下光纖環(huán)內(nèi)部應(yīng)力分布與具體的數(shù)值,通過(guò)具體的數(shù)值比較得出光纖環(huán)內(nèi)部應(yīng)力優(yōu)化的控制方式。
[Abstract]:In inertial navigation systems, fiber optic gyroscopes have the advantages of small size, fast starting, high sensitivity and all solid state, so they replace the traditional mechanical gyroscopes and electronic gyroscopes, and locate in aircraft control and submarine positioning. Vehicle navigation and other major fields have been widely used. Optical fiber ring (fiber optic sensing coil) is the optical core part of optical fiber gyroscope. The advantages and disadvantages of optical fiber encircling technology will directly affect the research and development of high precision fiber optic gyroscope. In this paper, the influence of the winding tension and the hysteresis angle on the fiber wrapping quality is studied. Based on the analysis of the optical fiber wrapping mode and the moving mode of the components of the winding equipment, the influence of the winding tension and the hysteresis angle on the fiber wrapping quality is studied. The optimal design scheme of optical fiber wrapping process is put forward, which mainly includes: 1) studying the change of fiber stress in fiber winding process, analyzing the specific control requirements of winding tension, and establishing the mathematical model of winding tension generation. By analyzing the causes of the fluctuation of winding tension, the paper puts forward that the dance wheel micro-control device is used to reduce the fluctuation of winding tension, and analyzes its specific control methods. The causes of various kinds of winding defects are analyzed, and the mathematical model of lag angle is established. According to the working principle of the optical fiber surround real-time monitoring device, the paper analyzes the causes of the winding tension optimization (.2) and establishes the mathematical model of the hysteresis angle. The control methods of the hysteresis angle of the winding process and the initial time of winding are presented respectively. Through the analysis of the experimental data, it is found that the compensation method can be used to complete the non-defect winding, and to realize the high-precision wire placement (.3) to analyze the specific winding method to reduce the internal stress of the optical fiber ring, and to establish the physical model of the optical fiber ring according to the analysis of the internal fiber force of the optical fiber ring. By using finite element software to simulate the stress distribution and the specific value of the fiber ring under various kinds of winding tension, the control mode of the stress optimization in the fiber ring is obtained by comparing the specific numerical values.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN96

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