{"title":"Data-Driven Model Selection Study for Long-Term Performance Deterioration of Gas Turbines","authors":"Yuan Liu, A. Banerjee, Houman Hanachi, Amar Kumar","doi":"10.1109/ICPHM.2019.8819433","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819433","url":null,"abstract":"Performance of gas turbine engine (GTE) deteriorates with structural aging. The availability of operating data from GTE and capability to perform data analysis, provides an opportunity to identify long-term performance deterioration and relate to more difficult to detect structural degradation. In this work, performance analysis of a low power rating and partially loaded industrial GTE was carried out by using a model-free data analytic approach. A performance index (ratio of power generation to fuel consumption) is proposed as the metrics for monitoring the engine performance, and monitor the long-term degradation symptom. A comparative model selection study has been conducted among three multivariable models to select the best model describing long-term performance deterioration of the GTE.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":" October","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113946973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fault Detection and Estimation for a Class of Nonlinear Distributed Parameter Systems","authors":"H. Ferdowsi, Jia Cai, S. Jagannathan","doi":"10.1109/ICPHM.2019.8819432","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819432","url":null,"abstract":"This paper presents a new model-based fault detection and estimation framework for a class of multi-input and multi-output (MIMO) nonlinear distributed parameter systems (DPS) described by partial differential equations (PDE) with actuator and sensor faults. The fault functions cover both abrupt and incipient faults. A Luenberger type observer is used to monitor the health of the DPS as a detection observer on the basis of the nonlinear PDE representation of the system with measured output vector. By taking the difference between measured and estimated outputs from this observer, a residual signal is generated for fault detection. If the detection residual exceeds a predefined threshold, a fault will be claimed to be active. Once an actuator or a sensor fault is detected and the fault type is identified, an appropriate fault parameter update law is developed to learn the fault dynamics online with the help of an additional output measurement. Eventually, the proposed detection and estimation framework is demonstrated on a nonlinear process.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"06 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131134413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Implementing Predictive Maintenance in a Company: Industry Insights with Expert Interviews","authors":"Carolin Wagner, B. Hellingrath","doi":"10.1109/ICPHM.2019.8819406","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819406","url":null,"abstract":"The implementation of predictive maintenance as a proactive maintenance approach is gaining increasing importance in the age of digitization and the fourth industrial revolution. Various studies in the German industry have shown that the majority of companies already follow up on the topic. However, successful implementations of predictive maintenance in businesses are still a rarity. Due to the lack of knowledge and guidance during the implementation process, companies experience many difficulties for the realization of this proactive maintenance approach. Even though much research has been conducted in the fields of predictive maintenance and prognostics and health management, little attention was devoted to the design and analysis of process models for industrial applications. Common process models are theoretically derived without capturing the complexity of reality. This paper communicates the results of interviews conducted with six industry experts. In particular, experts from management consultancies are addressed with experience in multiple successful implementations. Based on the collected data, industry insights in terms of steps and phases of process models, best practices and challenges are provided.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115586844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Qi Zhao, Wenfeng Zhang, Yuhao Deng, Hongbo Zhao, W. Feng
{"title":"Diagnosing Strong-fault Models with a Two-step A* Search Method","authors":"Qi Zhao, Wenfeng Zhang, Yuhao Deng, Hongbo Zhao, W. Feng","doi":"10.1109/ICPHM.2019.8819391","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819391","url":null,"abstract":"Many model-based diagnosis researches, such as conflict directed A* search, have been made on weak-fault models, which have no fault mode behavior. However, in the real world, behaviors of common fault modes are usually known. In this situation, strong-fault models are built. Compared with weak-fault models, it is difficult to diagnose strong-fault models because their mode space is greater and non-monotonic. To diagnose strong-fault models efficiently, this paper proposes a two-step A* search, based on the conflict directed A* search. In our method, the consistency over modes, observations and models, is tested by assumption-based truth maintenance system, which generates multiple conflict sets if a fault occurs. Then fault isolation and identification are accomplished separately: firstly, possibly faulty components are isolated based on the conflict sets from the truth maintenance system; then different mode combinations of the faulty components are tested to obtain the specific fault modes. A* search is employed in both steps, as indicated by the name. By separating isolation and identification in two stages, memory and time requirements are reduced significantly. In the case study, a heat control system is utilized to demonstrate the proposed approach.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124253679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yunyou Lu, Xiaoping Fan, Dianzhu Gao, Yijun Cheng, Yingze Yang, Xiaoyong Zhang, S. Li, Jun Peng
{"title":"A Data-Based Approach for Sensor Fault Detection and Diagnosis of Electro-Pneumatic Brake","authors":"Yunyou Lu, Xiaoping Fan, Dianzhu Gao, Yijun Cheng, Yingze Yang, Xiaoyong Zhang, S. Li, Jun Peng","doi":"10.1109/ICPHM.2019.8819443","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819443","url":null,"abstract":"Sensor faults in the train electro-pneumatic brake system can cause severe performance degradation which may lead to accidents. Therefore, sensor fault detection and diagnosis of the brake are crucial for the train safety. However, the brake system is a complex integrated system with multiple operating modes, which makes the sensor fault detection and diagnosis more difficult. In this paper, we propose a data-based analytical redundancy method to detect and isolate sensor faults of the electro-pneumatic brake in the dynamic process of different operating modes. Firstly, we apply the Gradient Boosting Decision Trees regression analysis model to determine the normal quantitative correlation between two sensor measurements by training non-fault sensor measurements. Secondly, a measurement estimation is calculated by fusing multi-sensor measurements with a data fusion method that is insensitive to faulty sensor measurements. Finally, the sensor fault is detected by comparing the fusion estimation and each sensor measurement. The feasibility and effectiveness of the data-based approach are verified by experiments and simulations.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127464805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Health Assessment for Crane Pumps based on Vehicle Tests using Deep Autoencoder and Metric Learning","authors":"Dengyu Xiao, Yixiang Huang, Chengjin Qin, Haotian Shi, Chengliang Liu, Zenghai Shan","doi":"10.1109/ICPHM.2019.8819387","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819387","url":null,"abstract":"Pump is one of the key components in a crane, which once fails will severely hurt the reliability of the hydraulic system and cause great loss. Therefore, accurate, reliable and effective crane pump health assessment must be performed. However, the research about pump health assessment still stays at the stage of bench tests, which have the limited help for the real-world pump health prognosis. In this paper, to evaluate crane pump health status and avoid the issue above, the real-world vehicle tests of several cranes with different service years are performed to acquire the pump signals during the cranes’ actual operations. Deep Autoencoder (DAE), a kind of unsupervised learning approach, which possesses the capacity to learn meaningful representations from raw signal, is used reduce the data dimension before they are sent to Mahalanobis-Taguchi System in metric learning. Mahalanobis distance (MD) is utilized to reveal the performance degradation and assess the health condition. Performances of other feature learning methods such as statistical features, EMD, MLP, CNN are tested and contrasted. Results show that the proposed approach achieves the best performance.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"235 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116080023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tyler Cody, Stephen C. Adams, P. Beling, Sherwood Polter, K. Farinholt, Nathan Hipwell, Ali Chaudhry, Kennet Castillo, Ryan Meekins
{"title":"Transferring Random Samples in Actuator Systems for Binary Damage Detection","authors":"Tyler Cody, Stephen C. Adams, P. Beling, Sherwood Polter, K. Farinholt, Nathan Hipwell, Ali Chaudhry, Kennet Castillo, Ryan Meekins","doi":"10.1109/ICPHM.2019.8819393","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819393","url":null,"abstract":"Data-driven models can accurately estimate the condition of systems, for example a hydraulic actuator. However, maintenance on the system can lower the predictive ability of condition models by changing the marginal and conditional distributions of the data. In this study, we propose to use transfer learning to address this issue in the context of a hydraulic actuator. Transfer learning aims to use knowledge from one system to improve modeling in another. This work uses random sampling to transfer samples between actuator rebuilds to predict a binary indicator of system damage in a rebuilt actuator. Features are selected based on distributional differences. We find that successful transfer using random sampling can occur when features are selected appropriately. Also, transferring only the damage data allows the model to improve as more baseline data from the rebuilt actuator becomes available.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"12 Suppl 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134071649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xuanheng Tang, Jun Peng, B. Chen, Fu Jiang, Yingze Yang, Rui Zhang, Dianzhu Gao, Xiaoyong Zhang, Zhiwu Huang
{"title":"A parameter adaptive data-driven approach for remaining useful life prediction of solenoid valves","authors":"Xuanheng Tang, Jun Peng, B. Chen, Fu Jiang, Yingze Yang, Rui Zhang, Dianzhu Gao, Xiaoyong Zhang, Zhiwu Huang","doi":"10.1109/ICPHM.2019.8819382","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819382","url":null,"abstract":"As crucial parts of various engineering systems, solenoid valves (SVs) are of great importance and their failure may cause unexpected casualties. Accurately predicting the remaining useful life (RUL) of SVs helps making maintenance decision before they break down. It is hard to establish accurate physical model of SVs as they are characterized by complicated structure, multi-physics coupled working mechanism and complex degradation mechanisms. Different individuals may experience distincted degradation processes in various working environment. In this paper, a data-driven prognostic method is proposed for SVs. Firstly, a health index based on the dynamic driven current of SVs is constructed and an exponential model is established to characterize the degradation path. Then, the particle filter (PF) is introduced to reduce the noise of online measurement. Based on the denoised measurement, the parameters of the exponential model are adaptively updated with Bayesian estimation dynamically. Finally, the effectiveness and practicability of proposed method is validated by the designed experiments on SVs.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"45 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121033788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zejun Zheng, D. Song, X. Qi, Zilin Geng, Weihua Zhang
{"title":"Wheel Polygonalization Identification Method Based on Fluctuation of Temperature Data and Wheel Set Dynamic Monitoring Data","authors":"Zejun Zheng, D. Song, X. Qi, Zilin Geng, Weihua Zhang","doi":"10.1109/ICPHM.2019.8819425","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819425","url":null,"abstract":"With the increase of running time and speed, the wheel polygon phenomenon of high speed EMU is increasing gradually. Based on the analysis of the influence of wheel polygon on vehicle running state and the observation and statistics of the wheel set dynamic monitoring data and the wireless transmit device system data, a method of the wheel polygonalization identification is proposed which integrates the fluctuation of axle temperature data and wheel set dynamic monitoring data to improve the safety of high speed trains, so that the health status of high speed trains can be better monitored.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129023151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pengfei Liang, C. Deng, Jun Wu, Zhixin Yang, J. Zhu
{"title":"Intelligent Fault Diagnosis of Rolling Element Bearing Based on Convolutional Neural Network and Frequency Spectrograms","authors":"Pengfei Liang, C. Deng, Jun Wu, Zhixin Yang, J. Zhu","doi":"10.1109/ICPHM.2019.8819444","DOIUrl":"https://doi.org/10.1109/ICPHM.2019.8819444","url":null,"abstract":"Effective fault diagnosis of rolling element bearing is vital for the reliability and safety of modern industry. Although traditional intelligent fault diagnosis technology such as support vector machine, extreme learning machines and artificial neural network might achieve satisfactory accuracy, expert knowledge and manual intervention are heavily relied on in the process of feature extraction and selection. In this paper, a novel fault diagnosis method based on deep learning is proposed for rolling bearing using convolutional neural networks (CNN) and frequency spectrograms. First of all, fast Fourier transform is used to extract frequency features from raw 1-D vibration signals and convert them into 2-D frequency spectrograms. Then, the extracted 2-D frequency spectrograms are inputted into the CNN model to achieve fault diagnosis of rolling bearing, which makes full use of the strong ability of CNN in image classification. Finally, a case study is carried out to demonstrate the proposed method. The results show that it can achieve higher accuracy than traditional methods. Moreover, its performance in stability is very good as well.","PeriodicalId":113460,"journal":{"name":"2019 IEEE International Conference on Prognostics and Health Management (ICPHM)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133547070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}