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Design analysis of direct-driven PMSG in wind turbine application 风电机组直接驱动PMSG设计分析
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815829
Theint Zar Htet, Zhengming Zhao, Qing Gu
{"title":"Design analysis of direct-driven PMSG in wind turbine application","authors":"Theint Zar Htet, Zhengming Zhao, Qing Gu","doi":"10.1109/ICSRS.2016.7815829","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815829","url":null,"abstract":"This paper focuses on design analysis issues of direct driven permanent magnet synchronous generator (DDPMSG) which are widely used in large scale wind turbines. The permanent magnet synchronous generator (PMSG) of 1.5 MW output power which is driven directly without gear system is analyzed by Maxwell 2D RMxprt. The characteristics of generator include the cogging torque, induced coil voltages at rated speed, airgap flux density distribution and so on. For analysis of an electrical machine, accurate prediction of the machine parameters is crucial. A particular interest for permanent magnet generator is connected with wind turbine, which seems to be becoming increasing popular nowadays. The results show a proper performance of PMSG for analysis of an electrical machine in wind turbine application.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133736928","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: 3
Mission-driven reliability analysis of military aircraft 军用飞机任务驱动可靠性分析
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815852
Liu Junliang, T. Kenan, L. Weimin, Yang Chouzhou, Sun Yuan
{"title":"Mission-driven reliability analysis of military aircraft","authors":"Liu Junliang, T. Kenan, L. Weimin, Yang Chouzhou, Sun Yuan","doi":"10.1109/ICSRS.2016.7815852","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815852","url":null,"abstract":"Military aircraft is a complex repairable system, reliability evaluation of it in the mission stage is a very complicated problem. A new method of reliability modeling in the mission stage is presented. Firstly, the mission-driven system reliability modeling process is analyzed based on topology and logic relationship of system reliability block diagram. Secondly, the system and components universal generating function and logical operators of different structure are defined, then the system reliability universal generating function is achieved by compound operating with structure operators. Lastly, system reliability under different mission profile are calculated, the results demonstrate that the technique can well meet the engineering practice needs of military aircraft reliability evaluation. In addition, the system reliability sensitivities of individual element performances is analyzed, which has effective significance for preventive maintenance and improving operational reliability of all aircraft equipments.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115128847","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
Remaining useful life assessment of machine tools based on AHP method and Euclid approach degree 基于层次分析法和欧几里德逼近度的机床剩余使用寿命评估
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815836
Xuejiao Du, Zhaojun Yang, Guofa Li, Y. Jia, Chao Chen, Lin Gui
{"title":"Remaining useful life assessment of machine tools based on AHP method and Euclid approach degree","authors":"Xuejiao Du, Zhaojun Yang, Guofa Li, Y. Jia, Chao Chen, Lin Gui","doi":"10.1109/ICSRS.2016.7815836","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815836","url":null,"abstract":"The purpose of this paper is to evaluate remaining useful life (RUL) of machine tools, which is a key indicator for equipment maintenance and health management. The proposed method takes the factors of reliability, maintainability and economy into account and constructs the evaluation index system based on analytical hierarchy process (AHP) method. Euclid approach degree is then calculated through the fuzzy matter-element model in order to assess the health condition and determine RUL. An application example of a heavy-duty machine tool is provided to demonstrate the feasibility in engineering practice, results that are compared with fuzzy comprehensive evaluation and grey relational analysis illustrate the reliability and accuracy of the method.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129829276","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: 3
Software reliability estimation of gamma failure time models 伽玛故障时间模型的软件可靠性估计
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815847
B. Tantri, N. N. Murulidhar
{"title":"Software reliability estimation of gamma failure time models","authors":"B. Tantri, N. N. Murulidhar","doi":"10.1109/ICSRS.2016.7815847","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815847","url":null,"abstract":"With the increasing role of software in every field, concern has grown over the quality of software products. One such measure of software quality is the reliability, which is the probability of failure-free operation of a computer program in a specified environment for a specified time. Prior to the release of software, failure data are obtained during testing, using which, future reliability of software can be assessed. Reliability assessment can be done using various measures like Mean Time To Failure, failure intensity function, mean value function, etc. To assess the reliability, one should have a mathematical model that describes the behavior of failure with time. Such models are called software reliability models. Several classes of software reliability models have been defined based on the failure time distribution. One such class of models is the gamma failure time models, where failure times are assumed to follow gamma distribution. In this paper, software reliability estimates of gamma failure time models have been obtained using the method of Maximum Likelihood Estimation and method of Minimum Variance Unbiased Estimation. Using these methods, reliability of the software at a future time point can be estimated. Case studies have been considered to compare the two estimates.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129525349","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: 3
Reliability study on smart electricity meter 智能电表可靠性研究
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815857
Wang Xiaoming
{"title":"Reliability study on smart electricity meter","authors":"Wang Xiaoming","doi":"10.1109/ICSRS.2016.7815857","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815857","url":null,"abstract":"In order to evaluate the performance of smart electricity meter (SEM), this paper studies the reliability of the SEM. We introduce the indication of the reliability and analyze the standards and documents relevant to SEM. Then, we use the component stress method to predict the reliability of SEM based on the study of SEM. Finally, through an example, we obtain the expected failure rate of SEM from the kind of DDZY102C-Z produced by the Wasion Group through the method proposed. The result of the predicted reliability of the SEM is 5640.43 FIT (failure in time: 10-9Failures/h). Furthermore, in order to validate the proposed method, accelerated test is taken to assess the reliability of the smart electricity meter, and the experimental results show that the predicted reliability of the SEM has a high credibility.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127225197","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
Implementation of a fault-tolerant system using safety-related Xilinx tools conforming to the standard IEC 61508 使用符合IEC 61508标准的安全相关赛灵思工具实现容错系统
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815842
Emil Grade, A. Hayek, J. Börcsök
{"title":"Implementation of a fault-tolerant system using safety-related Xilinx tools conforming to the standard IEC 61508","authors":"Emil Grade, A. Hayek, J. Börcsök","doi":"10.1109/ICSRS.2016.7815842","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815842","url":null,"abstract":"Designing fault-tolerant systems implicates a redundant architecture of most critical system components. Traditional techniques — DMR and TMR, require a compromise with either incapability of a failed system masking or with an extremely high complexity and voter discrepancy. This paper presents a novel, warm redundancy architecture on FPGA based on a 32-bit microcontroller, which eliminates the drawbacks of DMR and TMR contributing their benefits. In order to mask a failed system, an enhanced diagnostic is implemented comprising CPU self-tests, internal and external watchdog, clock guarding and Xilinx soft error mitigation controller. Consequently, on-chip redundancy consists of two microcontrollers operating on the warm principle, in addition to an external watchdog that is designed to mask a failed system according to the status of diagnostics and to perform the activation of the redundant one. Increased availability is achieved due to the integration of two external watchdogs. Following the certified isolation design flow of Xilinx tools a conformance with the safety standard IEC 61508 is conducted. Furthermore, novel measures for mitigation of common cause failures are investigated to meet the requirements of the standard.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131457597","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: 8
Facility layout planning problem: Effectiveness and reliability evaluation system layout designs 设施布局规划问题:有效性和可靠性评估系统布局设计
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815848
S. Amar, A. Abouabdellah
{"title":"Facility layout planning problem: Effectiveness and reliability evaluation system layout designs","authors":"S. Amar, A. Abouabdellah","doi":"10.1109/ICSRS.2016.7815848","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815848","url":null,"abstract":"The choice of a facility layout design is a very complicated decision. It requires a specific multi-attribute decision making process involving various criteria. In fact the evaluation and the selection of a facility layout planning are usually crucial decision and requires a long processing approach since the criteria have different nature (qualitative and qualitative) and conflicting features. The quality and effectiveness of the production and manufacturing process relies on the choice of the layout planning design. Thus, we developed in this paper an evaluation system for the effectiveness and reliability of the different designs. The proposed approach is based a linguistic-numerical evaluation and mathematical modeling using interpolation theory with hybrid functions. The objective is to present an effective, easy numerical and visual comparison system of layout designs alternatives.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"262 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122695200","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: 7
Random vibration reliability analysis of disc magazine based on the peak beyond method 基于峰值超越法的圆盘弹匣随机振动可靠性分析
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815846
Yangqiu Xia, Qiu Hu
{"title":"Random vibration reliability analysis of disc magazine based on the peak beyond method","authors":"Yangqiu Xia, Qiu Hu","doi":"10.1109/ICSRS.2016.7815846","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815846","url":null,"abstract":"In order to analyze the effect of random vibration on the accuracy of disc magazine in tool changing process, dimensionless dynamics model of tool change system is established, using the model to study the random vibration of disc magazine in tool changing process. Through the study of peak beyond as basis failure criterion for evaluation of vibration reliability, a vibration reliability analysis method is developed by using the peak beyond method to evaluate the system reliability. And the vibration reliability of a disc magazine is calculated by Matlab simulation, the calculation results show that the randomness of system parameters in a controllable range can ensure the system vibration reliability.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116246759","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
Extreme load analysis based on POT model for wheel loader axle shaft 基于POT模型的轮式装载机轴轴极限载荷分析
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815853
Xinting Zhai, Zhujin Jiang
{"title":"Extreme load analysis based on POT model for wheel loader axle shaft","authors":"Xinting Zhai, Zhujin Jiang","doi":"10.1109/ICSRS.2016.7815853","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815853","url":null,"abstract":"Extreme load value is a critical part in load spectrum compiling. To make a reliable spectrum to improve the reliability and durability of component, it is necessary to do research on extreme load. In this paper, the extreme value theory (EVT) is used to do extreme load value analysis with short time load spectrum to avoid the shortcoming of long traditional test time. The whole process of extreme load analysis has been illustrated in detail. The peak over threshold (POT) model is founded. Two uncertainty factors of the model, parameter estimation and threshold selection, are introduced. The goodness of fit tests are employed to verify the feasibility of the model. According to the return value analysis, the extreme load extrapolate value has obtained. Finally, the torque of wheel loader axle shaft is taken as an example, and the final result is in a reasonable range which shows the applicability of EVT in construction machinery.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124532945","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
An evaluation method for use phase affordability of aviation equipment 航空装备使用阶段负担能力评价方法
2016 International Conference on System Reliability and Science (ICSRS) Pub Date : 2016-11-01 DOI: 10.1109/ICSRS.2016.7815835
Jing Lyu, W. Wang, Y. Ren, Weijia Feng, Jian Zhao
{"title":"An evaluation method for use phase affordability of aviation equipment","authors":"Jing Lyu, W. Wang, Y. Ren, Weijia Feng, Jian Zhao","doi":"10.1109/ICSRS.2016.7815835","DOIUrl":"https://doi.org/10.1109/ICSRS.2016.7815835","url":null,"abstract":"With the application of a variety of high-tech, life cycle cost of aviation equipment increased substantially. For the life cycle cost of aviation equipment, the costs of using phase account for more than 50% of total costs. Therefore, the development of aviation industry call for a method to evaluate and predict the use phase affordability of aviation equipment. This paper defines the definition and meaning of the use phase affordability of aviation equipment. The paper established the evaluation system for use phase affordability of aviation equipment starting from three aspects: the effectiveness of usage, support costs and importance of aviation equipment. Proposed the evaluation method for use phase affordability of aviation equipment. The evaluation method reflects the level of use phase affordability of aviation equipment scientifically, provides the basis of equipment use decision for the consumer.","PeriodicalId":164248,"journal":{"name":"2016 International Conference on System Reliability and Science (ICSRS)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114927929","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
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