旋轉(zhuǎn)機(jī)械光纖信號無接觸傳輸方法及特性的研究
發(fā)布時(shí)間：2018-09-10 06:21
【摘要】：隨著光纖傳感技術(shù)的飛速發(fā)展和不斷創(chuàng)新,為機(jī)械系統(tǒng)的狀態(tài)與故障監(jiān)測開辟了一種全新的測試原理和檢測方法,光纖光柵檢測技術(shù)已開始應(yīng)用于汽輪機(jī)等大型旋轉(zhuǎn)機(jī)械運(yùn)行狀態(tài)實(shí)時(shí)監(jiān)測的場合,為滿足監(jiān)測光路中,旋轉(zhuǎn)機(jī)械平臺、監(jiān)測系統(tǒng)設(shè)備之間信息連接的需要,需用到光纖旋轉(zhuǎn)連接裝置,以實(shí)現(xiàn)光纖信號在高速轉(zhuǎn)子和靜止的檢測設(shè)備之間高效穩(wěn)定地傳輸。本學(xué)位論文在國家科技項(xiàng)目“863計(jì)劃”和大學(xué)生自主創(chuàng)新基金的支持下,開展面向旋轉(zhuǎn)機(jī)械的單通道光纖信號旋轉(zhuǎn)無接觸傳輸方法及特性的研究。從旋轉(zhuǎn)光纖信號傳輸光路損耗分析入手,提出了光纖信號旋轉(zhuǎn)傳輸?shù)木唧w工作指標(biāo),并對幾種常用的光纖準(zhǔn)直器件的技術(shù)參數(shù)和耦合損耗進(jìn)行對比分析,分析和推導(dǎo)了三種裝配誤差對準(zhǔn)直器耦合損耗影響的理論公式,并通過實(shí)驗(yàn)得出影響關(guān)系曲線;基于光路損耗的理論研究和國內(nèi)外發(fā)展的現(xiàn)狀,提出并設(shè)計(jì)了一種新型的單通道光纖信號自適應(yīng)旋轉(zhuǎn)傳輸隔振連接器(文中簡稱:自適應(yīng)旋轉(zhuǎn)連接器),對其工作原理、結(jié)構(gòu)設(shè)計(jì)及創(chuàng)新點(diǎn)進(jìn)行了具體闡述,分析了自適應(yīng)旋轉(zhuǎn)連接器光路傳輸損耗。該設(shè)計(jì)已獲得國家專利授權(quán)(CN 203595833 U)。在理論分析的基礎(chǔ)上,研制出自適應(yīng)旋轉(zhuǎn)連接器實(shí)物,并設(shè)計(jì)了裝配和調(diào)試實(shí)驗(yàn)對其性能進(jìn)行測試,得到了與理論研究相符的實(shí)驗(yàn)結(jié)論,驗(yàn)證了自適應(yīng)旋轉(zhuǎn)連接器的可靠性和穩(wěn)定性;搭建了扭振測試平臺,以先進(jìn)的光纖光柵測試方法,開展了自適應(yīng)旋轉(zhuǎn)連接器的實(shí)驗(yàn)研究,分析了在實(shí)驗(yàn)室環(huán)境下的光信號旋轉(zhuǎn)傳輸特性和方法,并與雙準(zhǔn)直器耦合測試系統(tǒng)進(jìn)行了對比研究,證明了自適應(yīng)旋轉(zhuǎn)連接器能充分滿足扭振測試平臺旋轉(zhuǎn)光信號的傳輸和檢測功用,揭示了雙準(zhǔn)直器耦合和自適應(yīng)旋轉(zhuǎn)連接器測試系統(tǒng)的優(yōu)缺點(diǎn)。相對于實(shí)驗(yàn)室環(huán)境,選擇汽輪機(jī)轉(zhuǎn)子為研究對象,對自適應(yīng)旋轉(zhuǎn)連接器應(yīng)用于實(shí)際工況;搭建了汽輪機(jī)轉(zhuǎn)子狀態(tài)實(shí)時(shí)監(jiān)測平臺,介紹了監(jiān)測平臺的結(jié)構(gòu)、測試方法及旋轉(zhuǎn)光路的設(shè)計(jì),對比研究了雙準(zhǔn)直器耦合、光纖滑環(huán)、自適應(yīng)旋轉(zhuǎn)連接器三種光信號旋轉(zhuǎn)傳輸方案,證明了自適應(yīng)旋轉(zhuǎn)連接器實(shí)際應(yīng)用的可行性;通過對三種方案的優(yōu)劣對比,揭示了不同工況下光信號旋轉(zhuǎn)傳輸方案的選用原則。本學(xué)位論文所做的研究工作對于研制有自我知識產(chǎn)權(quán)的光纖旋轉(zhuǎn)連接裝置,豐富和發(fā)展光纖信號旋轉(zhuǎn)傳輸?shù)姆椒疤匦?以及提升我國大型旋轉(zhuǎn)機(jī)械的狀態(tài)監(jiān)測水平均具有十分重要的意義。
[Abstract]:With the rapid development and innovation of optical fiber sensing technology, a new testing principle and detection method have been developed for the condition and fault monitoring of mechanical system. Fiber Bragg grating (FBG) detection technology has been applied to the real-time monitoring of the running status of large rotating machinery such as steam turbines. In order to meet the needs of information connection between the monitoring optical path, the rotating machinery platform and the monitoring system equipment, In order to realize the efficient and stable transmission of the optical fiber signal between the high-speed rotor and the static detecting device, the optical fiber rotary connection device is needed. Supported by the National Science and Technology Project "863" and the College students' Independent Innovation Fund, this dissertation studies the rotating non-contact transmission method and characteristics of single-channel optical fiber signal for rotating machinery. Based on the analysis of optical path loss of optical fiber signal transmission, the specific working index of optical fiber signal rotation transmission is put forward, and the technical parameters and coupling loss of several commonly used optical fiber collimation devices are compared and analyzed. This paper analyses and deduces the theoretical formulas of three kinds of assembly error alignment straightener coupling loss, and obtains the influence relation curve by experiment, based on the theoretical research of optical path loss and the development of domestic and foreign, In this paper, a new type of single-channel optical fiber signal adaptive rotary transmission isolation connector is proposed and designed. The working principle, structure design and innovation of the connector are described in detail. The optical transmission loss of adaptive rotary connector is analyzed. The design has been granted a national patent (CN 203595833 U).) On the basis of theoretical analysis, an adaptive rotary connector is developed and its performance is tested by assembly and debugging experiments. The experimental results are in agreement with the theoretical research. The reliability and stability of the adaptive rotary connector are verified, and the torsional vibration testing platform is set up, and the experimental research of the adaptive rotary connector is carried out with the advanced fiber Bragg grating testing method. The characteristics and methods of optical signal rotating transmission in laboratory environment are analyzed and compared with the dual-collimator coupling test system. It is proved that the adaptive rotary connector can fully meet the transmission and detection function of the rotating light signal in the torsional vibration testing platform. The advantages and disadvantages of the dual collimator coupling and adaptive rotary connector test system are revealed. Compared with the laboratory environment, the turbine rotor is selected as the research object, and the adaptive rotary connector is applied to the actual working conditions, and the real-time monitoring platform of the turbine rotor condition is built, and the structure of the monitoring platform is introduced. The test method and the design of rotating optical circuit are compared. Three optical signal rotation transmission schemes are compared and studied, such as double collimator coupling, optical fiber sliding ring and adaptive rotation connector. The feasibility of practical application of adaptive rotary connector is proved. By comparing the advantages and disadvantages of the three schemes, the selection principle of optical signal rotation transmission scheme under different operating conditions is revealed. The research work done in this dissertation can enrich and develop the methods and characteristics of optical fiber signal rotation transmission. It is very important to improve the condition monitoring level of large rotating machinery in China.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN253
本文編號：2233641
[Abstract]:With the rapid development and innovation of optical fiber sensing technology, a new testing principle and detection method have been developed for the condition and fault monitoring of mechanical system. Fiber Bragg grating (FBG) detection technology has been applied to the real-time monitoring of the running status of large rotating machinery such as steam turbines. In order to meet the needs of information connection between the monitoring optical path, the rotating machinery platform and the monitoring system equipment, In order to realize the efficient and stable transmission of the optical fiber signal between the high-speed rotor and the static detecting device, the optical fiber rotary connection device is needed. Supported by the National Science and Technology Project "863" and the College students' Independent Innovation Fund, this dissertation studies the rotating non-contact transmission method and characteristics of single-channel optical fiber signal for rotating machinery. Based on the analysis of optical path loss of optical fiber signal transmission, the specific working index of optical fiber signal rotation transmission is put forward, and the technical parameters and coupling loss of several commonly used optical fiber collimation devices are compared and analyzed. This paper analyses and deduces the theoretical formulas of three kinds of assembly error alignment straightener coupling loss, and obtains the influence relation curve by experiment, based on the theoretical research of optical path loss and the development of domestic and foreign, In this paper, a new type of single-channel optical fiber signal adaptive rotary transmission isolation connector is proposed and designed. The working principle, structure design and innovation of the connector are described in detail. The optical transmission loss of adaptive rotary connector is analyzed. The design has been granted a national patent (CN 203595833 U).) On the basis of theoretical analysis, an adaptive rotary connector is developed and its performance is tested by assembly and debugging experiments. The experimental results are in agreement with the theoretical research. The reliability and stability of the adaptive rotary connector are verified, and the torsional vibration testing platform is set up, and the experimental research of the adaptive rotary connector is carried out with the advanced fiber Bragg grating testing method. The characteristics and methods of optical signal rotating transmission in laboratory environment are analyzed and compared with the dual-collimator coupling test system. It is proved that the adaptive rotary connector can fully meet the transmission and detection function of the rotating light signal in the torsional vibration testing platform. The advantages and disadvantages of the dual collimator coupling and adaptive rotary connector test system are revealed. Compared with the laboratory environment, the turbine rotor is selected as the research object, and the adaptive rotary connector is applied to the actual working conditions, and the real-time monitoring platform of the turbine rotor condition is built, and the structure of the monitoring platform is introduced. The test method and the design of rotating optical circuit are compared. Three optical signal rotation transmission schemes are compared and studied, such as double collimator coupling, optical fiber sliding ring and adaptive rotation connector. The feasibility of practical application of adaptive rotary connector is proved. By comparing the advantages and disadvantages of the three schemes, the selection principle of optical signal rotation transmission scheme under different operating conditions is revealed. The research work done in this dissertation can enrich and develop the methods and characteristics of optical fiber signal rotation transmission. It is very important to improve the condition monitoring level of large rotating machinery in China.
【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TN253
【參考文獻(xiàn)】
相關(guān)期刊論文 前10條
1 謝毅;譚躍剛;;光纖信號旋轉(zhuǎn)傳輸裝置的研究[J];湖北工業(yè)大學(xué)學(xué)報(bào);2014年04期
2 楊洪磊;梁仕斌;李川;昌明;李英娜;;光纖光柵傳感技術(shù)及其在電力系統(tǒng)中的應(yīng)用[J];中國電力教育;2013年29期
3 王源泉;方武良;陶理;朱江波;遲楠;;多模光纖鏈路中多輸入多輸出技術(shù)的研究[J];激光與光電子學(xué)進(jìn)展;2011年10期
4 米磊;姚勝利;孫傳東;孫博;張紅菊;;光纖旋轉(zhuǎn)連接器的發(fā)展及其軍事應(yīng)用[J];紅外與激光工程;2011年06期
5 徐明;李超;;光電組合式滑環(huán)在雷達(dá)系統(tǒng)中的應(yīng)用[J];電子機(jī)械工程;2011年01期
6 高榮剛;;汽輪機(jī)葉片葉身的無損檢測[J];新疆電力技術(shù);2009年01期
7 徐峰;張瑞玨;汪光騏;王璐;趙克俊;余雷;張靜;俞本立;;新型棱鏡型雙通道光纖旋轉(zhuǎn)連接器的設(shè)計(jì)[J];光學(xué)精密工程;2008年10期
8 梅進(jìn)杰;朱光喜;;光纖旋轉(zhuǎn)接頭及其應(yīng)用[J];光纖與電纜及其應(yīng)用技術(shù);2008年03期
9 王榮波;何莉華;田建華;吳廷烈;李澤仁;;光纖色散及損耗對光纖探針信號傳輸?shù)挠绊慬J];爆炸與沖擊;2005年06期
10 朱少麗,徐秋霜,劉德森;自聚焦透鏡在光纖準(zhǔn)直器中的應(yīng)用分析[J];西南師范大學(xué)學(xué)報(bào)(自然科學(xué)版);2004年03期
相關(guān)碩士學(xué)位論文 前1條
1 龔文杰;C-Lens準(zhǔn)直器特性的研究[D];哈爾濱工業(yè)大學(xué);2006年
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