天堂国产午夜亚洲专区-少妇人妻综合久久蜜臀-国产成人户外露出视频在线-国产91传媒一区二区三区

當前位置:主頁 > 科技論文 > 機械論文 >

齒輪箱故障振動信號去噪及特征提取算法研究

發(fā)布時間:2018-07-17 00:23
【摘要】:齒輪箱作為機械設備中一種必不可少的連接和傳遞動力的通用零部件,在金屬切削機床、航空、電力系統(tǒng)、農(nóng)業(yè)機械、運輸機械、冶金機械等現(xiàn)代工業(yè)設備中得到了廣泛的應用。作為傳動機械,其運行狀態(tài)好壞與否,直接影響到整個機械傳動組的工作性能。因此研究齒輪箱故障診斷技術和方法,對齒輪箱進行狀態(tài)檢測及故障分析診斷、確保齒輪箱正常工作具有重要意義。 齒輪箱故障診斷技術是通過分析處理齒輪箱運行時的狀態(tài)信息。定量識別其技術狀態(tài),并診斷異常故障狀態(tài)的一門多學科交叉的綜合技術。齒輪箱振動信號中包含了大量的工作狀態(tài)信息,利用齒輪箱振動信號診斷故障是一種行之有效的方法。應用振動信號分析法對齒輪箱進行故障診斷的過程中,濾波去噪處理、故障特征提取是其中尤為重要的兩個問題,一直被公認為是故障診斷中的關鍵環(huán)節(jié)。本文從工程實際應用的角度出發(fā),分別以風力發(fā)電機行星齒輪箱和通用工業(yè)齒輪箱故障振動信號為具體研究對象,綜合應用譜峭度、黃金分割、下山單純形、小波分析、快速傅里葉變換、粒子群優(yōu)化、沖擊響應譜、瞬態(tài)分析等理論,基于混合優(yōu)化理念,對齒輪箱故障振動信號去噪及故障特征提取算法兩個關鍵問題進行了系統(tǒng)地研究,為齒輪箱故障診斷技術的開發(fā)研究提供了一定的理論支持。 本文重在研究齒輪箱故障振動信號的優(yōu)化濾波去噪和故障脈沖瞬態(tài)特征提取算法。 (1)分析了齒輪箱振動信號常用分析方法的基本原理及適用范圍,為后續(xù)的振動信號去噪、故障特征提取算法研究提供一定的理論支持。 (2)為了解決單一的黃金分割法優(yōu)化速度較慢的問題,將黃金分割和拋物線插值兩種算法相結合構成加速一維搜索算法。 (3)為了解決單一的傳統(tǒng)多維優(yōu)化算法收斂速度較慢,且收斂時容易陷入局部極值的問題。以峭度最大值為目標函數(shù),根據(jù)振動信號頻域分析和小波分析的原理,基于一維搜索-多維搜索(參數(shù)粗調(diào)-參數(shù)微調(diào))混合優(yōu)化的自適應濾波算法,分別采用了兩種不同的濾波手段。切比雪夫帶通濾波和Morlet小波濾波。應用混合優(yōu)化算法,即譜峭度-加速一維搜索算法-下山單純形法分別優(yōu)化切比雪夫帶通濾波器和Morlet小波濾波器的設計參數(shù),對齒輪箱故障振動信號進行濾波去噪仿真處理。 (4)為了對比不同類型混合優(yōu)化算法的優(yōu)劣性,將以下四種優(yōu)化算法:譜峭度、黃金分割、下山單純形、遺傳算法,按一維搜索-多維搜索模式混合優(yōu)化切比雪夫帶通濾波器參數(shù),并進行去噪仿真實驗。 (5)在前期研究的基礎上將粒子群優(yōu)化算法應用到齒輪箱故障振動信號去噪中,將基于加速一維搜索-粒子群優(yōu)化的混合優(yōu)化算法用于優(yōu)化切比雪夫帶通濾波器和Morlet小波濾波器的相關參數(shù),并對齒輪箱故障振動信號進行濾波去噪仿真處理。 (6)為了提取能夠反映齒輪箱工作信息變化情況以及故障未來發(fā)展趨勢的故障脈沖瞬態(tài)特征,將沖擊響應譜分析和瞬態(tài)分析法應用到齒輪箱齒輪的故障特征提取中,用于提取衡量齒輪箱故障嚴重程度的三個瞬態(tài)特征指標:沖擊響應譜指標SRS以及齒輪嚙合系統(tǒng)的固有頻率ωn、振蕩阻尼比ζ。
[Abstract]:As a necessary part of the mechanical equipment to connect and transmit power, the gear box is widely used in the modern industrial equipment such as metal cutting machine, aviation, power system, agricultural machinery, transportation machinery and metallurgical machinery. As a transmission machine, its running state is directly affected by the whole machine transmission. Therefore, it is important to study the fault diagnosis technology and method of the gear box, to detect the gear box and to diagnose the fault, so as to ensure the normal work of the gear box.
The gear box fault diagnosis technology is a multidisciplinary and interdisciplinary technology which can identify the state of the gear box and diagnose the state of the gear box, and diagnose the abnormal state of the fault. The vibration signal of the gear box contains a lot of work state information. It is effective to diagnose the fault by using the vibration signal of the gear box. In the process of fault diagnosis of gear box by vibration signal analysis, filtering de-noising and fault feature extraction are two important problems, which have always been recognized as the key link in fault diagnosis. This paper, from the angle of practical application of the engineering, uses the planetary gearbox of wind turbine and general purpose respectively. The fault vibration signal of industrial gear box is a specific research object, and two key questions, such as spectral kurtosis, gold segmentation, downhill simplex, wavelet analysis, fast Fourier transform, particle swarm optimization, impact response spectrum, transient analysis, etc., are used to denoise and extract fault characteristics of gearbox vibration signal based on mixed optimization idea. A systematic study is carried out to provide some theoretical support for the development and research of gearbox fault diagnosis technology.
This paper focuses on the research of gearbox fault vibration signal optimization filter denoising and fault pulse transient feature extraction algorithm.
(1) the basic principle and application range of the common analysis method of the vibration signal of the gear box are analyzed. It provides a certain theoretical support for the subsequent vibration signal denoising and the research of the fault feature extraction algorithm.
(2) in order to solve the problem of slow optimization of the single gold segmentation method, the gold segmentation and parabolic interpolation are combined to form the accelerated one dimension search algorithm.
(3) in order to solve the problem that the convergence speed of the single traditional multi-dimensional optimization algorithm is slow and the convergence is easy to fall into the local extremum, the adaptive filtering algorithm based on one dimension search multidimensional search (parameter coarse tuning and parameter tuning) is based on the principle of the frequency domain analysis and the wavelet analysis of the vibration signal, with the maximum kurtosis as the objective function. Two different filtering methods are adopted. Chebyshev bandpass filter and Morlet wavelet filter are used respectively. The design parameters of the Chebyshev bandpass filter and Morlet wavelet filter are optimized by using the hybrid optimization algorithm, namely the spectral kurtosis acceleration one dimension search algorithm - the downhill simplex method, respectively, to filter the noise of the gear box fault vibration signal. Simulation processing.
(4) in order to compare the advantages and disadvantages of different types of hybrid optimization algorithms, the following four optimization algorithms: spectral kurtosis, gold segmentation, downhill simplex, genetic algorithm, and one dimensional search - multidimensional search model are used to optimize the Chebyshev bandpass filter parameters and carry out noise removal experiments.
(5) the particle swarm optimization algorithm is applied to the de-noising of the gear box fault vibration signal on the basis of the previous research, and the hybrid optimization algorithm based on the acceleration one dimension search particle swarm optimization is used to optimize the related parameters of the Chebyshev bandpass filter and Morlet wavelet filter, and the vibration signal of the gear box fault vibration is filtered to imitate the noise. Deal with it.
(6) in order to extract the transient characteristics of the fault pulse which can reflect the change of the working information of the gear box and the future development trend of the fault, the impact response spectrum analysis and the transient analysis method are applied to the fault feature extraction of the gear box gear, which is used to extract the three transient characteristic indexes of the severity of the gear box fault: the impact response spectrum The index SRS and the natural frequency of gear meshing system are n, damping ratio.
【學位授予單位】:東北林業(yè)大學
【學位級別】:博士
【學位授予年份】:2014
【分類號】:TH132.41;TH165.3

【參考文獻】

相關期刊論文 前10條

1 石喜玲;孫運強;魯旭濤;;小波分析在扭矩動態(tài)測試法去噪中的應用[J];彈箭與制導學報;2004年S9期

2 ;Application of Wavelets Transform to Fault Detection in Rotorcraft UAV Sensor Failure[J];Journal of Bionic Engineering;2007年04期

3 王毅,牛奕龍,陳海洋;獨立分量分析的基本問題與研究進展[J];計算機工程與應用;2005年27期

4 丁康,江利旗;解調(diào)分析在機械振動分析中應用的局限性研究[J];機械科學與技術;2000年05期

5 陳雪峰;李繼猛;程航;李兵;何正嘉;;風力發(fā)電機狀態(tài)監(jiān)測和故障診斷技術的研究與進展[J];機械工程學報;2011年09期

6 焦新濤,丁康;加窗頻譜分析的恢復系數(shù)及其求法[J];汕頭大學學報(自然科學版);2003年03期

7 劉剛,屈梁生;應用連續(xù)小波變換提取機械故障的特征[J];西安交通大學學報;2000年11期

8 王曉冬;何正嘉;訾艷陽;;滾動軸承故障診斷的多小波譜峭度方法[J];西安交通大學學報;2010年03期

9 ;CLASSIFICATION OF GEAR FAULTS USING HIGHER-ORDER STATISTICS AND SUPPORT VECTOR MACHINES[J];Chinese Journal of Mechanical Engineering(English Edition);2002年03期

10 ;NEW DEMODULATION TECHNOLOGY OF OPTIMIZING ENERGY OPERATOR AND APPLICATION TO GEAR FAULT DIAGNOSIS[J];Chinese Journal of Mechanical Engineering;2005年04期

相關博士學位論文 前1條

1 孔德文;大型齒輪傳動裝置動力學及故障診斷技術研究[D];吉林大學;2008年

,

本文編號:2128205

資料下載
論文發(fā)表

本文鏈接:http://sikaile.net/kejilunwen/jixiegongcheng/2128205.html


Copyright(c)文論論文網(wǎng)All Rights Reserved | 網(wǎng)站地圖 |

版權申明:資料由用戶9fe85***提供,本站僅收錄摘要或目錄,作者需要刪除請E-mail郵箱bigeng88@qq.com
精品人妻少妇二区三区| 婷婷色网视频在线播放| 国产日韩欧美在线亚洲| 正在播放玩弄漂亮少妇高潮| 日韩欧美综合中文字幕 | 日本一区不卡在线观看| 久久精品久久精品中文字幕| 日本99精品在线观看| 丁香七月啪啪激情综合| 欧美日韩国产自拍亚洲| 日韩精品区欧美在线一区| 黄色在线免费高清观看| 国产精品一区二区成人在线| 日本女人亚洲国产性高潮视频| 国产午夜福利一区二区| 日本在线视频播放91| 欧美日韩一级黄片免费观看| 91精品国自产拍老熟女露脸| 人妻内射精品一区二区| 欧美一级特黄大片做受大屁股| 国产精品免费不卡视频| 日本午夜一本久久久综合| 肥白女人日韩中文视频| 亚洲欧美日本视频一区二区| 国产日韩欧美专区一区| 国产精品尹人香蕉综合网 | 草草草草在线观看视频| 国产精品免费精品一区二区| 欧美整片精品日韩综合| 欧美国产日本免费不卡| 午夜视频免费观看成人| 日韩成人高清免费在线| 国产欧美日韩不卡在线视频| 国产av一区二区三区四区五区| 日本国产欧美精品视频| 日本免费熟女一区二区三区| 五月综合婷婷在线伊人| 亚洲欧美日本成人在线| 国产二级一级内射视频播放| 超薄丝袜足一区二区三区| 大香蕉再在线大香蕉再在线|