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Bin Zhang
The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044, China

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Journal article
Published: 11 August 2020 in Applied Sciences
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Rolling bearings are fundamental elements that play a crucial role in the functioning of rotating machines; thus, fault diagnosis of rolling bearings is of great significance to reduce catastrophic failures and heavy economic loss. However, the vibration signals of rolling bearings are often nonlinear and nonstationary, resulting in difficulty for feature extraction and fault recognition. In this paper, a hybrid method for multiple fault diagnosis of rolling bearings is presented. The bearing vibration signals are decomposed with the improved complete ensemble empirical mode decomposition with adaptive noise (ICEEMDAN) to denoise and extract nonlinear entropy features. The nonlinear entropy features are further processed to select the more discriminative fault features and to reduce feature dimension. Then a multi-class intelligent recognition model based on ensemble support vector machine (ESVM) is constructed to diagnose different bearing fault modes as well as fault severities. The effectiveness of the proposed method is assessed via experimental case studies of rolling bearings under multiple operational conditions (i.e., speeds and loads). The results show that our method gives better diagnosis results as compared to some existing approaches.

ACS Style

Rui Li; Chao Ran; Bin Zhang; Leng Han; Song Feng. Rolling Bearings Fault Diagnosis Based on Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise, Nonlinear Entropy, and Ensemble SVM. Applied Sciences 2020, 10, 5542 .

AMA Style

Rui Li, Chao Ran, Bin Zhang, Leng Han, Song Feng. Rolling Bearings Fault Diagnosis Based on Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise, Nonlinear Entropy, and Ensemble SVM. Applied Sciences. 2020; 10 (16):5542.

Chicago/Turabian Style

Rui Li; Chao Ran; Bin Zhang; Leng Han; Song Feng. 2020. "Rolling Bearings Fault Diagnosis Based on Improved Complete Ensemble Empirical Mode Decomposition with Adaptive Noise, Nonlinear Entropy, and Ensemble SVM." Applied Sciences 10, no. 16: 5542.

Journal article
Published: 09 February 2020 in Sensors
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Engine prognostics are critical to improve safety, reliability, and operational efficiency of an aircraft. With the development in sensor technology, multiple sensors are embedded or deployed to monitor the health condition of the aircraft engine. Thus, the challenge of engine prognostics lies in how to model and predict future health by appropriate utilization of these sensor information. In this paper, a prognostic approach is developed based on informative sensor selection and adaptive degradation modeling with functional data analysis. The presented approach selects sensors based on metrics and constructs health index to characterize engine degradation by fusing the selected informative sensors. Next, the engine degradation is adaptively modeled with the functional principal component analysis (FPCA) method and future health is prognosticated using the Bayesian inference. The prognostic approach is applied to run-to-failure data sets of C-MAPSS test-bed developed by NASA. Results show that the proposed method can effectively select the informative sensors and accurately predict the complex degradation of the aircraft engine.

ACS Style

Bin Zhang; Kai Zheng; Qingqing Huang; Song Feng; Shangqi Zhou; Yi Zhang. Aircraft Engine Prognostics Based on Informative Sensor Selection and Adaptive Degradation Modeling with Functional Principal Component Analysis. Sensors 2020, 20, 920 .

AMA Style

Bin Zhang, Kai Zheng, Qingqing Huang, Song Feng, Shangqi Zhou, Yi Zhang. Aircraft Engine Prognostics Based on Informative Sensor Selection and Adaptive Degradation Modeling with Functional Principal Component Analysis. Sensors. 2020; 20 (3):920.

Chicago/Turabian Style

Bin Zhang; Kai Zheng; Qingqing Huang; Song Feng; Shangqi Zhou; Yi Zhang. 2020. "Aircraft Engine Prognostics Based on Informative Sensor Selection and Adaptive Degradation Modeling with Functional Principal Component Analysis." Sensors 20, no. 3: 920.

Journal article
Published: 30 October 2017 in Applied Sciences
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The periodic impulse feature is the most typical fault signature of the vibration signal from fault rolling element bearings (REBs). However, it is easily contaminated by noise and interference harmonics. In order to extract the incipient impulse feature from the fault vibration signal, this paper presented an autocorrelation function periodic impulse harmonic to noise ratio (ACFHNR) index based on the SVD-Teager energy operator (TEO) method. Firstly, the Hankel matrix is constructed based on the raw vibration fault signal of rolling bearing, and the SVD method is used to obtain the singular components. Afterwards, the ACFHNR index is employed to measure the abundance of the periodic impulse fault feature for the singular components, and the component with the largest ACFHNR index value is extracted. Moreover, the properties of the ACFHNR index are demonstrated by simulations and the full life cycle of the experiment, showing its superiority over the traditional kurtosis and root mean square (RMS) index for extracting and detecting incipient periodic impulse features. Finally, the Teager energy operator spectrum of the extracted informative signal is gained. The simulation and experimental results indicated that the proposed ACFHNR index based method can effectively detect the incipient fault feature of the rolling bearing, and it shows better performance than the kurtosis and RMS index based methods.

ACS Style

Kai Zheng; Tianliang Li; Bin Zhang; Yi Zhang; Jiufei Luo; Xiangyu Zhou. Incipient Fault Feature Extraction of Rolling Bearings Using Autocorrelation Function Impulse Harmonic to Noise Ratio Index Based SVD and Teager Energy Operator. Applied Sciences 2017, 7, 1117 .

AMA Style

Kai Zheng, Tianliang Li, Bin Zhang, Yi Zhang, Jiufei Luo, Xiangyu Zhou. Incipient Fault Feature Extraction of Rolling Bearings Using Autocorrelation Function Impulse Harmonic to Noise Ratio Index Based SVD and Teager Energy Operator. Applied Sciences. 2017; 7 (11):1117.

Chicago/Turabian Style

Kai Zheng; Tianliang Li; Bin Zhang; Yi Zhang; Jiufei Luo; Xiangyu Zhou. 2017. "Incipient Fault Feature Extraction of Rolling Bearings Using Autocorrelation Function Impulse Harmonic to Noise Ratio Index Based SVD and Teager Energy Operator." Applied Sciences 7, no. 11: 1117.

Journal article
Published: 16 October 2014 in Entropy
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Performance degradation assessment of rolling element bearings is vital for the reliable and cost-efficient operation and maintenance of rotating machines, especially for the implementation of condition-based maintenance (CBM). For robust degradation assessment of rolling element bearings, uncertainties such as those induced from usage variations or sensor errors must be taken into account. This paper presents an information exergy index for bearing performance degradation assessment that combines singular value decomposition (SVD) and the information exergy method. Information exergy integrates condition monitoring information of multiple instants and multiple sensors, and thus performance degradation assessment uncertainties are reduced and robust degradation assessment results can be obtained using the proposed index. The effectiveness and robustness of the proposed information exergy index are validated through experimental case studies.

ACS Style

Bin Zhang; Lijun Zhang; Jinwu Xu; Pingfeng Wang. Performance Degradation Assessment of Rolling Element Bearings Based on an Index Combining SVD and Information Exergy. Entropy 2014, 16, 5400 -5415.

AMA Style

Bin Zhang, Lijun Zhang, Jinwu Xu, Pingfeng Wang. Performance Degradation Assessment of Rolling Element Bearings Based on an Index Combining SVD and Information Exergy. Entropy. 2014; 16 (10):5400-5415.

Chicago/Turabian Style

Bin Zhang; Lijun Zhang; Jinwu Xu; Pingfeng Wang. 2014. "Performance Degradation Assessment of Rolling Element Bearings Based on an Index Combining SVD and Information Exergy." Entropy 16, no. 10: 5400-5415.