{"title":"Lifetime prediction for electrical connector under the action of random vibration loading","authors":"Zhuang Chongyang, F. Qiang, Sun Bo","doi":"10.1109/PHM.2012.6228872","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228872","url":null,"abstract":"Electrical connectors play a critical role on systems' reliability and vibration loading is the critical environmental factor which affects the reliability and lifetime of them. The existing methods to study the lifetime of electrical connectors under the action of vibration loading cannot quantify the response of the electrical connectors, cost high and time-consuming. To solve these problems, the method combined finite element (FE) simulation with failure physics equation was proposed. It can not only be used to quantify the vibration response, predict the lifetime and quantify the limited vibration loading of electrical connectors, but also analysis the reliability and optimization of electrical connector. The response of electrical connectors under external vibration excitation was quantified by FE modeling and simulation first. The relationship between external input vibration loading and local vibration response was established by multiple sets of vibration simulation and data fitting. Then the equation between lifetime of electrical connector and external vibration excitation was established combined with the failure physics equation. Finally, the test data was used to validate the lifetime of electrical connector.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134445306","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":"Improved reliability approximate method combining Kriging and importance sampling","authors":"Zhan Liu, Jianguo Zhan, Chunlin Tan","doi":"10.1109/PHM.2012.6228862","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228862","url":null,"abstract":"Approximation methods are widely used to alleviate the computational burden of structural reliability analyses. Engineering problems involve more and more complex computer codes and the evaluation of the probability of failure may require very time-consuming computations. To assess reliability, the most popular approach remains the numerous variants of response surfaces. Widespread in optimization, Kriging has just started to appear in uncertainty propagation and reliability studies. This paper investigates an Optimized Kriging method by using the artificial bee colony algorithm combining importance sampling for structural reliability problems. An example is performed to illustrate the methodology to prove its high accuracy and efficiency, particularly for problems of high non-linearity, high dimensionality and implicit performance functions.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134552879","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":"On reducing feature dimensionality for partial discharge diagnosis applications","authors":"Weizhong Yan","doi":"10.1109/PHM.2012.6228839","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228839","url":null,"abstract":"Feature dimensionality reduction is a critical task in various machine learning applications including prognostics and health management (PHM) applications. Linear transformations, most popularly principal component analysis (PCA) and linear discriminant analysis (LDA), are the most widely-used methods for feature dimensionality reduction. For classification problems, LDA, being a supervised linear transformation that aims at maximally retaining class discriminant information, is generally considered to be a better method than PCA, an unsupervised method. However, LDA suffers from the singularity or small sample size problem. Attempting to address this problem, in this paper we propose a cluster-based LDA (cLDA) for feature dimensionality reduction. It first partitions features in distinct clusters and then performs cluster-wise LDA transformation. We demonstrate the effectiveness of the proposed cLDA on reducing the number of features by using a real-world PHM application - partial discharge diagnosis.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131805285","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}
Cancan Wang, Jianguo Zhan, Zhan Liu, Xianchao Wang, Feng Wang
{"title":"A crossing rate method to reliability analysis of antenna structure under fluctuating wind","authors":"Cancan Wang, Jianguo Zhan, Zhan Liu, Xianchao Wang, Feng Wang","doi":"10.1109/PHM.2012.6228856","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228856","url":null,"abstract":"In order to investigate the complete problem of antenna design under wind load in a statistical way, a time-variant reliability procedure is proposed in this paper, which differs from conventional reliability approaches for antenna design. It considers the influence of the Gaussian behavior of wind-induced pressures of antenna in its lifetime on the reliability index of antenna. It is shown that the reliability of under wind load significantly reduces when time is considered. A time-independent reliability approach which does not consider degradation of may greatly over estimate the reliability index for antenna under fluctuating wind load. The design recommendations are also given in this paper. The procedures proposed in this paper represent a suitable way to evaluate the safety of antenna under wind load.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114613867","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":"A comparison study of hidden Markov model and particle filtering method: Application to fault diagnosis for gearbox","authors":"Yunxian Jia, LeiĀ Sun, H. Teng","doi":"10.1109/PHM.2012.6228865","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228865","url":null,"abstract":"For gearbox fault diagnosis, it is expected that a desired fault diagnosis model should have good computation efficiency, and have good recognition ability in both fault detection domain and fault identification domain. Currently, there are mainly three type's models in this area that are physical based model, artificial intelligence based model and data-driven based model. However, the first type model requires specific mechanistic knowledge and theory relevant to the monitored system structure which are hardly to realize; and the second type model needs large amounts of condition monitoring data which are also not always available; while data-driven model investigate proper statistical model to describe system state which is used widely in fault diagnosis domain. The purpose of this paper is to investigate two popular algorithms of date-driven models for gearbox fault diagnosis, namely hidden Markov model and particle filtering method. At the beginning, we briefly introduced the procedure of feature extraction and the theoretical background of this paper. Then we respectively proposed hidden markov model and particle filtering model for fault diagnosis. Finally, the comparison experiment was conducted for gearbox fault detection and the analysis results from this work showed that particle filtering method has better detection performance, while hidden markov model has better computation efficiency in this area.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"311 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123459184","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":"A case study on battery life prediction using particle filtering","authors":"Yinjiao Xing, E. W. M. Ma, K. Tsui, M. Pecht","doi":"10.1109/PHM.2012.6228847","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228847","url":null,"abstract":"Batteries play a critical role for the reliability of battery-powered systems. The prognostics in batteries provide warning to the advent of failure, which requires timely maintenance and replacement of batteries. This paper reviews current research on battery degradation models and focuses on the online implementation of prognostic algorithms. The particle filtering approach is utilized to track battery performance based on two degradation models that are highly efficient for online applications. An experimental demonstration of this method is provided. Through a comparison of the prognostic results, the problems of the models and the algorithm are discussed.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"246 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123666502","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":"Research on the health status monitoring model and monitoring system of destruction equipment for high-risk goods based on the fuzzy combination mode","authors":"Hongyuan Zhang, Yanliang Li, Jing Zhang","doi":"10.1109/PHM.2012.6228825","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228825","url":null,"abstract":"The high-risk and complexity of highly dangerous goods destruction need urgently a deep analysis and judgment to the variety health status of destroyed equipment in operation to ensure the operations safety,so the health status monitoring model of destruction equipment was constructed. In this paper it determined the operating status monitoring parameters and equipment unit parameters by reliability and pre-risk analysis, studied the health trends judgment methods of operating status parameters by statistical process control (SPC) and equipment PLC combination, the health status analysis methods of the operating state parameters subsystem related equipment based on the Profust. Finally it composed both analysis methods to judge the health status of destroyed equipment. While it builds the health status monitoring network of destruction equipment, the hardware and software part of actual destruction system. The model provides a new way for the establishment of high-risk operations equipment health status monitoring systems based on PHM.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117175246","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":"OBDD-based algorithm for reliability evaluation of Wireless Sensor Networks","authors":"Bo Zhao, Yan Liu, Yufeng Xiao","doi":"10.1109/PHM.2012.6228972","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228972","url":null,"abstract":"The key element of a Prognostics and Health Management (PHM) for Wireless Sensor Networks (WSN) is on its relaibility evaluation. To evaluate the reliability of WSN, an algorithm named Enhanced Node Expansion (ENE) is presented in this paper. The ENE constructs the Ordered Binary Decision Diagram (OBDD) with node expansion and computes the reliability on the OBDD structure. During the generation of OBDD, these redundant equivalent states are avoided, and redundant computations from isomorphic sub-networks are decreased. Experiments show ENE is more efficient than factoring algorithm for large size WSN.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117224274","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":"Study on the support resources configuration of multi-aircraft formation","authors":"Lin Ma, Qian Wu, Lei Li, Chao Lian","doi":"10.1109/PHM.2012.6228894","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228894","url":null,"abstract":"To study the support resources configuration supporting the multi-aircraft formation in executing assignment, a simulation model is built based on the Anylogic software, referencing the characteristic of the requirement of resources and the support process. By changing the resource configuration schemes to simulate the support process, an optimal scheme satisfied the constrains, can be obtained. The simulation result shows the method has a valuable reference to determine the configuration scheme of the multi-aircraft formation in the intricate environment such as the limitation of the outfield and the variable flight preparation time.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124678276","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":"Test point selection strategy under unreliable test based on heuristic particle swarm optimization algorithm","authors":"D. Sen, Jing Bo, Yang Zhou","doi":"10.1109/PHM.2012.6228884","DOIUrl":"https://doi.org/10.1109/PHM.2012.6228884","url":null,"abstract":"A heuristic particle swarm optimization algorithm is proposed to solve the problem of test point selection with unreliable test. Firstly, a heuristic function is established to value the capability of test point detection, coverage and reliance. Then based on the heuristic function and least test cost principle, a fitness function of unreliable test is created. Lastly, the method for test point selection using improved particle swarm optimization algorithm is presented. Comparing with other method of test point selection, the results show that the method is easy to find the global optimal test point in large-scale system. It can also minimize test cost on requirement of testability targets.","PeriodicalId":444815,"journal":{"name":"Proceedings of the IEEE 2012 Prognostics and System Health Management Conference (PHM-2012 Beijing)","volume":"09 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127251163","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}