【摘要】：光纖線包中光纖是按照一定的張力纏繞在芯軸上,而合理的纏繞張力制度則可提高殼體整體性能。光纖是制導(dǎo)導(dǎo)彈傳輸信息的唯一通路,光纖線包是光纖制導(dǎo)武器的核心部件。本文研究的內(nèi)容是光纖線包的纏繞張力制度,簡要地介紹了光纖線包的纏繞原理和結(jié)構(gòu)特點(diǎn),系統(tǒng)地分析了光纖線包體存在的纏繞缺陷。在此基礎(chǔ)上針對遠(yuǎn)距離光纖線包中層數(shù)多,內(nèi)外層光纖的應(yīng)力差別大,易出現(xiàn)“內(nèi)松外緊”等現(xiàn)象,本文提出遠(yuǎn)距離等應(yīng)力光纖線包纏繞的張力制度設(shè)計(jì)方法。本文首先基于彈性力學(xué)理論,以纏繞完成后各層光纖等應(yīng)力狀態(tài)分布為設(shè)計(jì)原則,對光纖線包中光纖和芯軸的應(yīng)力進(jìn)行詳細(xì)分析,建立光纖線包應(yīng)力分布模型；其次,找出應(yīng)力與張力之間的關(guān)系,建立了等應(yīng)力纏繞的張力制度；最后,運(yùn)用ANSYS Mechanical有限元分析軟件對光纖線包纏繞后應(yīng)力應(yīng)變情況分別進(jìn)行了等應(yīng)力纏繞張力和恒張力的仿真分析,進(jìn)一步驗(yàn)證等應(yīng)力張力制度的優(yōu)越性。仿真結(jié)果表明：等張力下光纖線包內(nèi)外層的應(yīng)力差較大,“內(nèi)緊外松”的現(xiàn)象相對嚴(yán)重,并且芯軸的中部變形量最大。而采用等應(yīng)力纏繞的線包各層應(yīng)力差明顯減小,上述現(xiàn)象得到明顯緩解。此外,芯軸的變形也比等張力下的變形略有減小。
[Abstract]:The fiber is wound on the core axis according to a certain tension, and the reasonable winding tension system can improve the overall performance of the shell. Optical fiber is the only way for guided missile to transmit information. In this paper, the winding tension system of the fiber line package is studied. The winding principle and structure characteristics of the fiber line package are briefly introduced, and the winding defects of the fiber line package are analyzed systematically. On this basis, aiming at the phenomenon of "inner loosening and external tightening", the tension system design method of long distance fiber package winding is put forward in the light of the fact that there are many middle layers of long distance fiber lines, the stress difference between inner and outer layers of optical fibers is large, and the tension system is easy to occur. In this paper, based on the theory of elastic mechanics, the stress distribution of fiber and core axis in fiber package is analyzed in detail, and the stress distribution model of fiber bundle is established based on the principle of equal stress distribution in each layer of fiber after winding. Secondly, the relationship between stress and tension is found, and the tension system of iso-stress winding is established. Finally, the ANSYS Mechanical finite element analysis software is used to simulate and analyze the stress and strain conditions of the fiber winding respectively, which further verifies the superiority of the equal stress tension system. The simulation results show that the stress difference between the inner and outer layers of the fiber line under equal tension is large, the phenomenon of "internal tight and external loosening" is relatively serious, and the central deformation of the core axis is the largest. However, the stress difference of each layer of the wire wrapped by iso-stress winding is obviously reduced, and the above phenomenon is obviously alleviated. In addition, the deformation of the core shaft is slightly smaller than that of the core shaft under equal tension.
【學(xué)位授予單位】：西安工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN253

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