发布求助
文献互助 智能选刊 最新文献

2016 Prognostics and System Health Management Conference (PHM-Chengdu)最新文献

筛选
英文 中文
Current similarity based fault diagnosis for induction motor drives with discrete wavelet transform 基于离散小波变换的感应电机驱动相似度故障诊断
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819841
Hao Yang, Jin Zhao, Feng Wu
{"title":"Current similarity based fault diagnosis for induction motor drives with discrete wavelet transform","authors":"Hao Yang, Jin Zhao, Feng Wu","doi":"10.1109/PHM.2016.7819841","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819841","url":null,"abstract":"Three-phase voltage-source inverters (VSI) fed induction motor (IM) with space-vector controlled scheme are widely used in industrial applications. The suffered failures will degrade the system performance with output torque ripple and harmonic currents. In this paper, a new diagnosis method is proposed to detect and locate the insulated gate bipolar translator (IGBT) open-circuit fault. Discrete wavelet transform (DWT) is used as a pre-treatment technique for three-phase output currents, the approximate coefficients are applied to obtain energy vectors. Correlation coefficients between every two of the energy vectors are calculated for measuring the current similarity to diagnose fault. When IGBTs occur open-circuit fault, the values of correlation coefficients will be smaller than that under normal conditions, then faults can be detected. Faults can also be located according to the relationship between cumulative correlation coefficients and the legs. Simulation results show high efficiency and merits of the proposed method.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114956433","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}
引用次数: 6
A comprehensive safety analysis method research for vehicle management system 车辆管理系统安全综合分析方法研究
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819955
Heng Ji, Xiaohong Bao, Chao-Chun Yang
{"title":"A comprehensive safety analysis method research for vehicle management system","authors":"Heng Ji, Xiaohong Bao, Chao-Chun Yang","doi":"10.1109/PHM.2016.7819955","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819955","url":null,"abstract":"With the advent of electronic technology and computer technology, integrated management and control is the development tendency of the airborne electronic system in advanced aircraft. Modern aircrafts are designed to use a vehicle management system (VMS) that integrates many flight critical functions into one system. Vehicle management system (VMS) benefit a lot from integration; however, the safety issues brought from integration have been ignored. The new hazards cannot be well resolved through traditional safety analysis based on ARP 4761. The paper summarizes the relevant safety problems of VMS system include the issues introduced by integration design. On the basis of ARP 4761, the paper proposes a comprehensive safety analysis method to analyze the potential threats in VMS system from four aspects. The method makes full use of the various analytical techniques to identify a more wide range of hazards in VMS system. Then detailed analysis processes are given to guide hazard analysis. Finally the method has been applied in the VMS system in a project, which shows the method is feasible. The methods in this paper can also be used to analyze other integrated systems' safety, which can guide VMS's designs.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129665688","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}
引用次数: 0
A support vector regression-based prognostic method for li-ion batteries working in variable operating states 基于支持向量回归的锂离子电池变工况预测方法
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819787
T. Tao, Wei Zhao
{"title":"A support vector regression-based prognostic method for li-ion batteries working in variable operating states","authors":"T. Tao, Wei Zhao","doi":"10.1109/PHM.2016.7819787","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819787","url":null,"abstract":"Prognostics of failures is very important for health management of Li-ion batteries and has received increasing attention from both researchers and practitioners in recent years. In practice, a Li-ion battery system often works under variable operating states, which is usually caused by the evolving environment or the different operational conditions. Thus, for remaining useful cycles (RUC) prognostics in this situation, it is important to estimate the current operating state of the system. This paper proposes a support vector regression (SVR) based data-driven approach using the possibilistic clustering classification and particle filtering to estimate the system state and select SVR parameters according to the system state. Experiments data provided by NASA Ames Prognostics Center of Excellence are introduced to testify the superiority of the proposed method.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129795346","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}
引用次数: 5
Error analysis and amelioration method of internal vapor analysis test for small hermetic devices 小型密闭装置内蒸气分析试验误差分析及改进方法
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819938
Cheng Gao, Yongkang Wan, Jiaoying Huang, X. Wang
{"title":"Error analysis and amelioration method of internal vapor analysis test for small hermetic devices","authors":"Cheng Gao, Yongkang Wan, Jiaoying Huang, X. Wang","doi":"10.1109/PHM.2016.7819938","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819938","url":null,"abstract":"This paper is commissioned to find the mechanism which leads to badly consistency IVA test results and the defects in IVA test sequence for small devices (package volumes  0.03cc), thereby to improves the test method. Package materials and executing seal processes were studied to find the mechanism that leads to badly consistency IVA test result. And analysis of the test tolerance and the sensitive measure steps was presented. A way to solve problem of inlet pressure depression was to redesign the fixture tools for small hermetic devices. This redesign follows the principle to eliminate the vacuum cavity when applying a fixture too. Test result turns out stable and reliable in the later practical engineering after redesign, which proves that the amelioration of IVA test method is effective.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134454169","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}
引用次数: 0
A quantitative method to evaluate system resilience based on minimal cut-set and sensitivity analysis 基于最小割集和灵敏度分析的系统弹性定量评价方法
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819865
Chenxuan Yang, Yanbo Zhang, Rui Kang, Yi Yang
{"title":"A quantitative method to evaluate system resilience based on minimal cut-set and sensitivity analysis","authors":"Chenxuan Yang, Yanbo Zhang, Rui Kang, Yi Yang","doi":"10.1109/PHM.2016.7819865","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819865","url":null,"abstract":"This paper proposes a quantitative method to evaluate system resilience. By dividing objects into system level and component level, we present two system resilience indexes (ER and p) based on minimal cut-set and its calculation method under continuous disruptive events, considering the influence of component and system structure on system resilience. In addition, the sensitivities of components to the two indexes are also analyzed using Morris-Method, which provides reference for the design and improvement of system resilience.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"08 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133208516","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}
引用次数: 0
Predicting remaining useful life for a multi-Component system with public noise 具有公共噪声的多组分系统剩余使用寿命预测
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819819
Hanwen Zhang, Maoyin Chen, Donghua Zhou
{"title":"Predicting remaining useful life for a multi-Component system with public noise","authors":"Hanwen Zhang, Maoyin Chen, Donghua Zhou","doi":"10.1109/PHM.2016.7819819","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819819","url":null,"abstract":"Remaining useful life (RUL) prediction is an important part of the prognostics and health management (PHM). This article presents a methodology to predict the RUL of a class of multi-component systems with hidden degradation processes. In the real industrial process, components of a system are usually in the same environment, so their degradations may be affected by a common factor which is assumed to be public noise. Here two Brownian Motions are adopted in the degradation process of every component to describe the public noise and the private noise separately. The degradation states and model unknown parameters are first identified recursively by Kalman filter and EM algorithm. Then the RUL distribution of every component can be predicted by inferring the first hitting time (FHT) with a known threshold. A numerical example is presented to verify the main results.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134564866","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}
引用次数: 1
Health indicator extraction based on sparse representation of vibration signal for planetary gearbox 基于振动信号稀疏表示的行星齿轮箱健康指标提取
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819809
Zhe Cheng, N. Hu, Xihui Liang, Libin Liu
{"title":"Health indicator extraction based on sparse representation of vibration signal for planetary gearbox","authors":"Zhe Cheng, N. Hu, Xihui Liang, Libin Liu","doi":"10.1109/PHM.2016.7819809","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819809","url":null,"abstract":"The general methods of health indicators extraction for planetary gearbox are based on the vibration signals which acquired by sensors equipped on the casing of the gearbox and sampled in the frame of Shannon sampling theory. Therefore, it is necessary to sample and save abundant original vibration data in the process of uninterrupted monitoring, and this will generate masses of original data which would burden the storage and transmission. For this issue, a health indicator extraction method based on sparse representation and reconstruction theory is proposed in this paper. It only needs to sample and save fewer compressive measurements of vibration signal directly compared to original signal. There is no need to recover the original signal accurately for extract health indicators, while it just requires some sparse representation and reconstruction results based on the redundant dictionary of the original signals. The effectiveness of the method proposed is validated with simulation data.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131086597","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}
引用次数: 1
Dynamic analysis for nonlinear behaviors of joint interface 节理界面非线性行为的动力分析
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819856
W. Dong, H. Jie, Wan Qiang
{"title":"Dynamic analysis for nonlinear behaviors of joint interface","authors":"W. Dong, H. Jie, Wan Qiang","doi":"10.1109/PHM.2016.7819856","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819856","url":null,"abstract":"Mechanics modeling for joints is a challenging problem for the complex multi-scale, multi-physics behaviors of contact interface, which will induce additional flexibility and damping to the assembled structure. In this paper, Iwan model was applied to describe the nonlinear softening stiffness and hysteresis behaviors of joint interface. The dynamic governing equations of vibration system are conducted with the consideration of these typical nonlinear behaviors. The multi-harmonic balance method was then used to analyze the steady-state dynamic response under the oscillatory loading in time-frequency domain. The proposed method was compared with the numerical integration solution, and the effect of the oscillatory frequency was also studied. The results show that the proposed harmonic balance method can solve the steady-state response more efficiently and agrees well with the numerical integration solution. With the increase of the oscillatory frequency, the maximum of displacement become less, inducing less area of hysteresis curve.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132054602","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}
引用次数: 0
Automatic test pattern generation method of flash memory based on Labview 基于Labview的闪存测试模式自动生成方法
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819943
Cheng Gao, Linjiang Hu, Jiaoying Huang
{"title":"Automatic test pattern generation method of flash memory based on Labview","authors":"Cheng Gao, Linjiang Hu, Jiaoying Huang","doi":"10.1109/PHM.2016.7819943","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819943","url":null,"abstract":"Flash memory is widely used in many fields, but there are still some problems with the generation of test pattern. The working and testing method of the memory is complex, for large capacity memory, the workload of generating a test pattern by the method of using manually is prohibitive. And Simulation files may not be obtained from design companies by the reason of protection of intellectual property rights. Thus, a Flash memory test pattern automatic generation method was studied; a generator is developed based on Labview. In this method, information of pins can be defined, information of command, address and data pins can be setup, and the length of a single vector can be identified. Specifications of internal blocks and pages are also defined, length of pattern which used for erasure, read and write operation is calculated. Finally, test pattern can be generated according to the selected algorithm, pins information and internal structure information. The results indicate that the proposed method is valid for functional test of Flash memory.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116055962","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}
引用次数: 0
A study on the suppression of cavitation flow inside an axial piston pump 轴向柱塞泵内部空化流的抑制研究
2016 Prognostics and System Health Management Conference (PHM-Chengdu) Pub Date : 2016-10-01 DOI: 10.1109/PHM.2016.7819843
Yingxun Shi, Tianran Lin, G. Meng, Juxin Huang
{"title":"A study on the suppression of cavitation flow inside an axial piston pump","authors":"Yingxun Shi, Tianran Lin, G. Meng, Juxin Huang","doi":"10.1109/PHM.2016.7819843","DOIUrl":"https://doi.org/10.1109/PHM.2016.7819843","url":null,"abstract":"Computational Fluid Dynamics (CFD) is employed in this paper to study the cavitation flow near a damping groove of a valve plate inside an axial piston pump. Effects of common U-shaped groove and V-shaped groove on the cavitation phenomenon are analyzed, and the process of cavitation bubbles from growth to collapse is studied numerically. It is shown that the cavitation can be effectively restrained to a certain extent by increasing the number of V-shaped grooves or the aspect ratio of the cross section of a U-shaped groove under the same flow area. The erosion caused by the cavitation can be effectively reduced leading to a substantial improvement of the reliability and lifespan of axial piston pumps.","PeriodicalId":202597,"journal":{"name":"2016 Prognostics and System Health Management Conference (PHM-Chengdu)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128579542","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}
引用次数: 10
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信