2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)最新文献_第5页

Fault Prediction for Rotating Bearing United Genetic Algorithm Optimize Variational Mode Decomposition and Support Vector Machine 联合遗传算法、优化变分模态分解和支持向量机的旋转轴承故障预测

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00015

Zijian Guo, X. Ye, Jun Tan, G. Zhai

引用次数: 0

Research on the Evaluation and Prediction Method of Solar-powered UAV Energy and Electrical System Health State Based on DBN 基于DBN的太阳能无人机能源与电气系统健康状态评估与预测方法研究

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00059

Zhengming Sun, Lizhi Wang, Xiaohong Wang

{"title":"Research on the Evaluation and Prediction Method of Solar-powered UAV Energy and Electrical System Health State Based on DBN","authors":"Zhengming Sun, Lizhi Wang, Xiaohong Wang","doi":"10.1109/SRSE54209.2021.00059","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00059","url":null,"abstract":"This paper focused on solar-powered UAV (Unmanned Aerial Vehicle) as the research object, carries out the application research of its energy and electrical system health state monitoring and redundancy design. As a new kind of long-endurance UAV, the solar-powered UAV has the advantages of ultra-long flight time and can conduct continuous aerial reconnaissance and surveillance in the high-altitude field day and night. It is currently the key type of UAV development in the world. The UAV system is a typical multi-level system composed of various subsystems, equipment, components, etc. distributed in the air and on the ground. The main function of the energy and electrical subsystem is to collect solar energy and convert it into electrical energy to provide other subsystems. At the same time, it is the electrical integration part of UAV system. Solar-powered UAV keep an ultra-long time in the air, and at the same time they have to face the rapidly changing climate at high altitudes. Therefore, real-time monitoring of the health state of solar-powered UAV is extremely important. In this paper, the health status of energy and electrical system of solar UAV is monitored in real time, and carries out a redundant design to compare with the health status of the original system.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127067945","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

Life Prediction of Lithium Thionyl Chloride Battery Based on Pulse Load Test and Accelerated Degradation Test 基于脉冲负载试验和加速退化试验的亚硫酰氯锂电池寿命预测

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00037

Qisen Sun, X. Ye, Haoxiang Li, Wenwen Li, Ruiming Yuan, G. Zhai

引用次数: 0

A Data-Driven Pricing Model for Extended Warranty Under Different Product Failures and Customer Characteristics 不同产品失效和客户特征下的数据驱动延保定价模型

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00046

Jiaxiang Cai, Xin Wang, Z. Ye

{"title":"A Data-Driven Pricing Model for Extended Warranty Under Different Product Failures and Customer Characteristics","authors":"Jiaxiang Cai, Xin Wang, Z. Ye","doi":"10.1109/SRSE54209.2021.00046","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00046","url":null,"abstract":"Most commercial products are sold with warranties. The prevailing uniform pricing strategy of the product's base warranty and extended warranty often lead to higher-than-expected warranty cost. Information on variations in product field reliability resulting from different customer characteristic such as heterogeneous operating environment and uncertain customer behaviors is not available upon sale and thus overlooked in base warranty cost estimation and pricing. The extended warranty should then be properly priced with the availability of information from failure claims and warranty cost generated during the base warranty period. In this work, we propose a data-driven method that explicitly captures a customer's random effect and his report probability of different failure types and prices the extended warranty according to different degrees of knowledge on customers and products. The proposed method is applied to a real case warranty dataset, and the results reveal that the method can well describe the failure process and the customer characteristics and helps to obtain the optimal price that achieves the maximum profit.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134496157","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

Reliability Research of GaN-Based blue Semiconductor Lasers gan基蓝色半导体激光器可靠性研究

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00018

Chengwei Zhang, Wenyuan Liao, Shaohua Yang, Hongran Wang, Zhipeng Wei, G. Lu

引用次数: 1

Optimal Periodic Switching Strategy For a Two-unit Warm Standby Degradation System 双机热备用退化系统的最优周期切换策略

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00048

Senyang Bai, X. Jia, Z. Cheng, B. Guo, Qian Zhao

引用次数: 1

An Uncertain Statistics of Uncertain Accelerated Degradation Model Based on the Method of Moments 基于矩量法的不确定加速退化模型的不确定统计

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00040

Zhao Tao, Xiao-Yang Li, Wenbin Chen

{"title":"An Uncertain Statistics of Uncertain Accelerated Degradation Model Based on the Method of Moments","authors":"Zhao Tao, Xiao-Yang Li, Wenbin Chen","doi":"10.1109/SRSE54209.2021.00040","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00040","url":null,"abstract":"The uncertain accelerated degradation model describing the degradation process and quantifying the epistemic uncertainties in the time dimension has been constructed, and the uncertain statistics based on the principle of least squares (US-LS) to estimate unknown parameters has been proposed. However, US-LS only considers the fit of the uncertainty distribution, rather than describing the deterministic degradation trend and analyzing the uncertainties. In this paper, an uncertain statistics based on the method of moments (US-M) is proposed, in which the unknown parameters related to the deterministic degradation trend and those related to the uncertainties are estimated separately. A stress relaxation case study is conducted to illustrate the proposed US-M, and discussions are given to compare US-M with US-LS in predicting the deterministic degradation trend and quantifying the uncertainties. The results show that the proposed US-M is more accurate than US-LS in predicting the deterministic degradation trend, and the confidence intervals of the degradation process predicted by US-M are closer to the boundaries of the actual data in quantifying the uncertainties, which verifies the validity of the proposed uncertain statistics.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114695664","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

[Title page iii] [标题页iii]

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/srse54209.2021.00002

引用次数: 0

Contact Bounce Model Considering Arc Ignition for Relay Contact Reliability Evaluation 考虑电弧点火的触点弹跳模型用于继电器触点可靠性评估

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00023

Lanxiang Liu, Wenying Yang, Li Chen, G. Zhai

{"title":"Contact Bounce Model Considering Arc Ignition for Relay Contact Reliability Evaluation","authors":"Lanxiang Liu, Wenying Yang, Li Chen, G. Zhai","doi":"10.1109/SRSE54209.2021.00023","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00023","url":null,"abstract":"Effective and comprehensive information of the bounce behavior for the relay will greatly affect the contact reliability evaluation. Due to the coexistence of the vibration problem and the correlations evaporation in the physical behaviors of the components, the contact process is difficult to simulate especially for relay with arc ignition. In view of the importance of the contact bounce model for obtaining accurate contact information, a new contact bounce model considering arc phenomena is established in this study, which can provide a quantitative explanation for the experimental behavior. The advantages of proposed bounce model are: 1) it involves the impact, bounce, electrical fields, magnetic force, repulsion force, and electrical arc during the closing operation for a real relay; and 2) it is computationally efficient and capable in simulating dynamic process and collecting bounce parameters. The application on a typical commercial relay demonstrates the performance of the proposed model. It is found that the bouncing tendency of the contact reed is determined by the plasma pressure and the impact effect in the contact area.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125115252","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

Research on Fatigue Crack Growth Model of Aircraft Structural Parts under Salt Spray 盐雾作用下飞机结构件疲劳裂纹扩展模型研究

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00013

C. Song, Z. Bian, Zhe Zhang, S. Ding

{"title":"Research on Fatigue Crack Growth Model of Aircraft Structural Parts under Salt Spray","authors":"C. Song, Z. Bian, Zhe Zhang, S. Ding","doi":"10.1109/SRSE54209.2021.00013","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00013","url":null,"abstract":"Firstly, the stress analysis of landing gear is carried out to determine the stress of landing gear struts in the retracting and retracting stages, and the mechanical model of landing gear struts is established. By using finite element method, the landing gear struts and kinematic hinges are considered as rigid bodies, and it is ignored that the influence of their deformation during extension and extension. The external load of the pole is calculated in the working process. Secondly, through the component-level performance degradation test, the same structural size as the hinge of the landing gear moving mechanism was taken as the sample, and the samples were cycled in groups according to different corrosion time. The main items of functional degradation test include three parts: wet heat test, temperature cycle test, salt spray test and tensile fatigue test. The test load is the same as the calculation and analysis results of the landing gear moving mechanism struts, and the crack propagation is recorded. Finally, BP neural network was used to analyze the data, and the relationship between crack growth and load and corrosion time at different time points was obtained, and the residual life of corrosion fatigue and its reliability calculation model were obtained. After several times of training, the required error can be achieved. The training network was used to predict that the hinge was fixed in three of the four factors, and the expression of crack propagation was determined. Then the curve fitting tool (MATLAB) was used to fit the relationship between the crack of the pole and the applied load, pendulum frequency, pendulum Angle and corrosion period, and the degradation model of 30CrMnSiA steel struts under the coupling of corrosion and fatigue failure modes was determined.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129527235","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