2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)最新文献_第2页

Aging-Intensity-Based Model Selection and Parameter Estimation on Heavily Censored Data 基于老化强度的重删减数据模型选择与参数估计

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00041

Jiang Renyan

{"title":"Aging-Intensity-Based Model Selection and Parameter Estimation on Heavily Censored Data","authors":"Jiang Renyan","doi":"10.1109/SRSE54209.2021.00041","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00041","url":null,"abstract":"The life distributions of product's components should be built as early as possible since many applications need them. The data for modelling are often heavily censored. In this case, it is a challenging issue to estimate the parameters. This paper proposes a new estimation method to address this issue. The proposed method estimates the shape parameter of a two-parameter life distribution through combining the concept of aging intensity with a semi-parametric smoothing TTT approach. The aging intensity of the Weibull distribution equals to its shape parameter; the smoothing TTT approach can be used to estimate the empirical aging intensity function, from which three representative values of the shape parameter are defined. Fixing each of them, the scale parameter is estimated using a singleparameter maximum likelihood method. In such a way, three distributions are fitted, from which a regression model is built to approximate the non-parametric estimates of the distribution function. The best model is selected based on the values of regression coefficients. Two examples are included to illustrate the appropriateness of the proposed approach.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"3 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":"124187090","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

Uncertainty and Cost Based Robust Design Approach for Quality Consistency of Electromagnetic Actuators 基于不确定性和成本的电磁执行器质量一致性鲁棒设计方法

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00017

J. Deng, Xiaohan Liu, G. Zhai

{"title":"Uncertainty and Cost Based Robust Design Approach for Quality Consistency of Electromagnetic Actuators","authors":"J. Deng, Xiaohan Liu, G. Zhai","doi":"10.1109/SRSE54209.2021.00017","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00017","url":null,"abstract":"In order to cope with the fierce competition in the marketplace, the design and optimization of cost-effective, high-quality and highly reliable electromagnetic actuators presents various challenges. In particular, uncertainties in the manufacturing process inevitably lead to large deviations between the actual output characteristics and the theoretical design values. State-of-art have not considered cost and uncertainty comprehensively enough, and although they can improve batch consistency, the design optimization solution given may not be optimal. To address this issue, this paper proposes an adaptive robust tolerance design (RTD) method that simultaneously considers multiple uncertainties, contribution rate fluctuation, manufacturing cost and quality loss. A quantitative model of epistemic uncertainty is proposed, which can effectively describe the variation of epistemic uncertainty. A cost model and a cost contribution rate model are then proposed, which can realistically reflect the changes in manufacturing cost and cost contribution rate during the optimization process. In addition, a new adaptive RTD method is proposed by combining the traditional RTD method, the uncertainty model and the contribution rate model, which can propose an optimization solution closer to the actual one with minimal cost increase. Finally, the validity of the method is verified using an electromagnetic actuator as an example.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"47 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":"129586091","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

Analysis of Internal Atmosphere of InGaAs Detectors with Different Degassing Conditions 不同脱气条件下InGaAs探测器内部气氛分析

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00024

Canxiong Lai, Wen Sun, Shaohua Yang, Bin Zhou

引用次数: 1

Reliability Analysis of Instrument Power System Based on Monte Carlo-Dynamic Fault Tree 基于蒙特卡罗-动态故障树的仪表电力系统可靠性分析

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00062

Sipei Chen, Lili Wang, Zhenhua Wei, Xingyu Qiao

引用次数: 0

Simulation Analysis Evaluation of Support Capability for Unmanned Aircraft Systems 无人机系统保障能力仿真分析与评估

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00029

Yun Wang, Yingchun Ran, P. Hu, Hailong Cheng, Tie Li

引用次数: 0

Topology Optimization of District Heating Network Based on Edge Influence Degree 基于边缘影响度的区域供热网络拓扑优化

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00052

Dingyi Mao, Peng Wang, Long Ni

{"title":"Topology Optimization of District Heating Network Based on Edge Influence Degree","authors":"Dingyi Mao, Peng Wang, Long Ni","doi":"10.1109/SRSE54209.2021.00052","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00052","url":null,"abstract":"Aim at improving structural reliability, we studied the topology backup optimization problem of district heating system in this paper. Based on the topological characteristics, edge influence degree index is established to measure the structural reliability of district heating network. 0–1 matrix and length weight matrix are constructed to describe the vertex attributes. The value of each element in the 0–1 matrix is taken as the optimization variable to establish the 0–1 nonlinear topology backup optimization model of district heating system, by taking the minimum total length of pipes as the optimization objective and setting the constraints such as connectivity and reliability. Then, the optimization model is solved based on genetic algorithm with the improved coding and decoding methods. The feasible solution transformation method and the elimination method of initial maximization objective function are used to deal with the constraints. Finally, through the optimization simulation of two gridded district heating area model with different sizes, the effectiveness of the proposed topology backup optimization model is verified.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"1 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":"128962811","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

Research on Protection System of Electronic On-load Tap-changers Based Sen Transformer 基于Sen变压器的电子式有载分接开关保护系统研究

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00028

Yuhang Pan, Wenying Yang

引用次数: 0

[Title page i] [标题页i]

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/srse54209.2021.00001

引用次数: 0

Optimal Design of Multi-stress Accelerated Degradation Tests Based on Bootstrap Method 基于自举法的多应力加速退化试验优化设计

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00038

L. Gen, Wang Zhihua, Shi Gongcheng, Li Lu

{"title":"Optimal Design of Multi-stress Accelerated Degradation Tests Based on Bootstrap Method","authors":"L. Gen, Wang Zhihua, Shi Gongcheng, Li Lu","doi":"10.1109/SRSE54209.2021.00038","DOIUrl":"https://doi.org/10.1109/SRSE54209.2021.00038","url":null,"abstract":"Step-stress accelerated degradation tests (SSADTs) have been applied to obtain products’ reliability information when the available test time is limited. As the products performance is generally affected by multiple stresses, optimal design for multiple SSADT is very necessary to guarantee the assessment accuracy and improve the test efficiency. In the current study, a multi-stress step-stress accelerated degradation model is first proposed, which can reasonably depict the comprehensive influence of accelerated stress levels on degradation regulation Then an optimal design method involving a bootstrap-based objective function is constructed, where multiple decision variables involving sample allocation and test time arrangement for each stress level can be simultaneously optimized based on genetic algorithm (GA) and Monte Carlo simulation. Finally, a simulation example is implemented, and a series of conventional methods are compared to illustrate the superiority of the proposed method. The comparative results and sensitivity analysis results both demonstrate the effectiveness and rationality of the proposed method.","PeriodicalId":168429,"journal":{"name":"2021 3rd International Conference on System Reliability and Safety Engineering (SRSE)","volume":"2 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":"128672504","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

Research on Intelligent Fire Identification Technology of Typical Cabin of SHIP 船舶典型客舱火灾智能识别技术研究

2021 3rd International Conference on System Reliability and Safety Engineering (SRSE) Pub Date : 2021-11-01 DOI: 10.1109/SRSE54209.2021.00054

Zichen Zhou, Shiyang Wang, Haisong Xiao, Liang Hong

引用次数: 0