本文選題：在線檢測 + 自混合干涉��； 參考：《燕山大學(xué)》2015年碩士論文

【摘要】：軋輥是帶鋼板材軋制過程中的重要設(shè)備部件,也是軋制生產(chǎn)中的主要消耗部件之一。在板材軋制過程中軋輥的磨損不可避免,必須頻繁地?fù)Q輥,并加以離線修磨才能滿足對產(chǎn)品的質(zhì)量和板形的要求,但這樣勢必影響生產(chǎn)效率。應(yīng)運而生的在線磨輥技術(shù)能大幅提高鋼材的生產(chǎn)效率,已成為國內(nèi)外研究、開發(fā)的重點新技術(shù)之一。而精確地進(jìn)行軋輥磨損的在線檢測則是實現(xiàn)在線磨輥技術(shù)的關(guān)鍵。因此研究軋輥磨損在線精密測試技術(shù)是目前軋制技術(shù)領(lǐng)域的迫切需求。本文針對軋輥磨損檢測的檢測環(huán)境惡劣、測量精度低等問題,基于激光自混合干涉測量理論,研究軋輥磨損在線檢測的原理及方案,提出一種非接觸式、在線檢測新方法。論文研究了基于激光自混合干涉原理測量軋輥磨損量的原理,將軋輥磨損量轉(zhuǎn)化為微位移量進(jìn)行檢測,設(shè)計了軋輥磨損檢測系統(tǒng),該系統(tǒng)主要由激光自混合干涉位移測量傳感裝置、軋輥檢測裝置和信號處理模塊組成。研究軋輥磨損在線檢測誤差分析與補償理論,提出一種基于LMS算法的的自適應(yīng)噪聲抵消法進(jìn)行軋輥磨損檢測誤差分析,用于減小檢測過程中環(huán)境噪聲對檢測結(jié)果帶來的干擾。通過仿真分析,驗證該方法可有效減少信號中的背景噪聲。同時利用插值法降低輥身與檢測裝置之間相對運動帶來的噪聲,提高系統(tǒng)的分辨率與精度。信號處理中利用小波變換法對SMI信號進(jìn)行濾波處理,并用相位展開法進(jìn)行SMI信號相位提取,重構(gòu)外腔物體的位移信息,得到軋輥磨損量。在實驗室條件下設(shè)計搭建基于激光自混合干涉的軋輥磨損檢測系統(tǒng)平臺,進(jìn)行實驗研究,模擬工件磨損測量,實驗結(jié)果分辨率可達(dá)到微米級,結(jié)果表明本文所提方法的有效性。
[Abstract]:Roll is an important equipment part in strip rolling process, and also one of the main consuming parts in rolling production. In order to meet the requirements of product quality and shape, the roll wear is inevitable in the process of plate rolling, so it is necessary to change the roll frequently and grind off line, but this will inevitably affect the production efficiency. The production efficiency of steel can be greatly improved by the on-line roller grinding technology, which has become one of the key new technologies in domestic and international research and development. It is the key to realize on-line roller grinding technology to detect roller wear accurately. Therefore, it is an urgent need to study roll wear online precision measurement technology in the field of rolling technology. Aiming at the problems of poor measuring environment and low precision of roller wear detection, based on the theory of laser self-mixing interferometry, this paper studies the principle and scheme of roller wear on-line detection, and puts forward a new non-contact and on-line testing method. In this paper, the principle of measuring roll wear based on laser self-mixing interference principle is studied, and the roll wear measurement system is designed. The system is mainly composed of laser self-mixing interferometric displacement measuring device, roller detecting device and signal processing module. In this paper, the error analysis and compensation theory of roll wear on-line detection is studied. An adaptive noise cancellation method based on LMS algorithm is proposed to analyze the roller wear detection error, which is used to reduce the interference caused by environmental noise in the detection process. The simulation results show that the proposed method can effectively reduce the background noise in the signal. At the same time, the interpolation method is used to reduce the noise caused by the relative motion between the roller body and the detecting device, and to improve the resolution and accuracy of the system. In signal processing, the SMI signal is filtered by wavelet transform method, and the phase extraction of SMI signal is carried out by phase unwrapping method. The displacement information of outer cavity object is reconstructed and the roll wear is obtained. The roller wear detection system based on laser self-mixing interference was designed and built in the laboratory. The experimental research was carried out and the workpiece wear measurement was simulated. The resolution of the experimental results can reach micron level. The results show that the proposed method is effective.
【學(xué)位授予單位】：燕山大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TG333.17

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 趙勇,李鵬生,浦昭邦;光纖位移傳感器進(jìn)展及其應(yīng)用[J];傳感器技術(shù);1999年02期

2 張暉;鄭煒;;LabVIEW與MATLAB混合編程的實現(xiàn)[J];電腦知識與技術(shù);2010年15期

3 陳先霖,張杰,張清東,王長松,楊荃,劉本仁,王嶺,魏鋼城,黃四清,楊金安;寬帶鋼熱連軋機板形控制系統(tǒng)的開發(fā)[J];鋼鐵;2000年07期

4 檀磊;齊攀;陳純;鐘金鋼;;基于激光自混合干涉的物體旋轉(zhuǎn)中心確定方法[J];光學(xué)技術(shù);2011年02期

5 姬靜毅;葉會英;禹延光;;基于光反饋自混合干涉的位移測量算法設(shè)計及濾波[J];激光與紅外;2011年01期

6 王玉田;崔立超;葛文謙;王冬生;;基于激光-線陣CCD技術(shù)的軋輥磨損度檢測系統(tǒng)[J];計量學(xué)報;2006年03期

7 張杰;賈寶瑞;呂耀強;;常見軋輥探傷方法概述[J];金屬世界;2007年04期

8 張紹宸;常宇輝;白鳳山;;MATLAB在通信系統(tǒng)仿真中的應(yīng)用[J];農(nóng)機使用與維修;2013年06期

9 郭媛;魏連鎖;孫明;;光反射式輥型檢測方法的研究與實現(xiàn)[J];計算機工程與科學(xué);2014年02期

10 陳龍法;數(shù)控軋輥磨床裝配技術(shù)[J];精密制造與自動化;2005年01期

相關(guān)碩士學(xué)位論文 前2條

1 高磊;激光自混合干涉振動傳感測量技術(shù)研究[D];西安理工大學(xué);2007年

2 張世雄;基于超聲特征掃描的軋輥在線檢測系統(tǒng)[D];中北大學(xué);2008年

，

本文編號：1908208