Eksploatacja I Niezawodnosc-Maintenance and Reliability最新文献_第9页

Useful Energy Prediction Model of a Lithium-ion Cell Operating on Various Duty Cycles 不同占空比下锂离子电池有用能量预测模型

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-10-26 DOI: 10.36227/techrxiv.16799587

D. Burzyński

{"title":"Useful Energy Prediction Model of a Lithium-ion Cell Operating on Various Duty Cycles","authors":"D. Burzyński","doi":"10.36227/techrxiv.16799587","DOIUrl":"https://doi.org/10.36227/techrxiv.16799587","url":null,"abstract":"The paper deals with\u0000the subject of the prediction of useful energy during the cycling of a\u0000lithium-ion cell (LIC), using machine learning-based techniques. It was\u0000demonstrated that depending on the combination of cycling parameters, the\u0000useful energy (RUEc) that\u0000can be transfered during a full cycle is variable, and also three different\u0000types of evolution of changes in RUEc\u0000were identified. The paper presents a new non-parametric RUEc prediction model based on Gaussian process\u0000regression. It was proven that the proposed methodology enables the RUEc prediction for LICs discharged,\u0000above the depth of discharge, at a level of 70% with an acceptable error, which\u0000is confirmed for new load profiles. Furthermore, techniques associated with\u0000explainable artificial intelligence were applied, for the first time, to\u0000determine the significance of model input parameters – the variable importance\u0000method – and to determine the quantitative effect of individual model\u0000parameters (their reciprocal interaction) on RUEc – the accumulated local effects model of the first\u0000and second order. Not only is the RUEc\u0000prediction methodology presented in the paper characterised by high prediction\u0000accuracy when using small learning datasets, but it also shows high application\u0000potential in all kinds of battery management systems.","PeriodicalId":50549,"journal":{"name":"Eksploatacja I Niezawodnosc-Maintenance and Reliability","volume":"2016 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2021-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86703811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A method for evaluating and upgrading systems with parallel structures with forced redundancy 具有强制冗余的并联结构系统的评估与升级方法

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-10-17 DOI: 10.17531/ein.2021.4.19

E. Michlowicz, J. Wojciechowski

{"title":"A method for evaluating and upgrading systems with parallel structures with forced redundancy","authors":"E. Michlowicz, J. Wojciechowski","doi":"10.17531/ein.2021.4.19","DOIUrl":"https://doi.org/10.17531/ein.2021.4.19","url":null,"abstract":"The objects of the study are parallel-structure machine systems with redundancy associated with safety assurance of continuous material flow. The problem concerns systems in which the supply of materials takes place continuously (24 hours a day), and the system of operated machines must ensure the receipt and movement of the material at a strictly defined time and in the desired quantity. It is a system where the presence of a failure poses a threat to human life and environmental degradation. This paper presents a method for system condition assessment and upgrading for maintaining proper operation under conditions of continuous operation. A database of information about the current parameters of the system components (measurements, monitoring) is necessary for condition assessment. The method also uses lean techniques (including TPM). System evaluation and selection criteria for a suitable\u0000structure in terms of further operation were proposed. Exemplification was performed for an underground mine drainage system. As a part of the identification, selected parameters of the system components were measured, and their characteristics (motors, pumps, pipelines) were developed. The results of the analysis and the values of the adopted criteria were compared to the indicators for new pump sets. A two-option system upgrade was proposed, in addition to machine operating schedules, maintenance periods, and overhaul cycles.","PeriodicalId":50549,"journal":{"name":"Eksploatacja I Niezawodnosc-Maintenance and Reliability","volume":"48 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2021-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78782416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A method for estimating the probability distribution of the lifetime for new technical equipment based on expert judgement 一种基于专家判断的新技术设备寿命概率分布估计方法

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-10-11 DOI: 10.17531/ein.2021.4.18

K. Andrzejczak, L. Bukowski

{"title":"A method for estimating the probability distribution of the lifetime for new technical equipment based on expert judgement","authors":"K. Andrzejczak, L. Bukowski","doi":"10.17531/ein.2021.4.18","DOIUrl":"https://doi.org/10.17531/ein.2021.4.18","url":null,"abstract":"Managing the exploitation of technical equipment under conditions of uncertainty requires the use of probabilistic prediction models in the form of probability distributions of the lifetime of these objects. The parameters of these distributions are estimated with the use of statistical methods based on historical data about actual realizations of the lifetime of examined objects. However, when completely new solutions are introduced into service, such data are not available and the only possible method for the initial assessment of the expected lifetime of technical objects is expert methods. The aim of the study is to present a method for estimating the probability distribution of the lifetime for new technical facilities based on expert assessments of three parameters characterizing the expected lifetime of these objects. The method is based on a subjective Bayesian approach to the problem of randomness and integrated with models of classical probability theory. Due to its wide application in the field\u0000of maintenance of machinery and technical equipment, a Weibull model is proposed, and its possible practical applications are shown. A new method of expert elicitation of probabilities for any continuous random variable is developed. A general procedure for the application of this method is proposed and the individual steps of its implementation are discussed, as well as the mathematical models necessary for the estimation of the parameters of the probability distribution are presented. A practical example of the application of the developed method on specific numerical values is also presented.","PeriodicalId":50549,"journal":{"name":"Eksploatacja I Niezawodnosc-Maintenance and Reliability","volume":"13 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2021-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86858717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Influence of the movement of involute profile gears along the off-line of action on the gear tooth position along the line of action direction 渐开线齿廓沿作用线运动对齿轮沿作用线方向齿位的影响

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-29 DOI: 10.17531/ein.2021.4.16

Ł. Jedliński

引用次数: 1

The post-warranty random maintenance policies for the product with random working cycles 随机工作周期产品的保修期后随机维修政策

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-29 DOI: 10.17531/ein.2021.4.15

Lijun Shang, Haibin Wang, Cang Wu, Zhiqiang Cai

{"title":"The post-warranty random maintenance policies for the product with random working cycles","authors":"Lijun Shang, Haibin Wang, Cang Wu, Zhiqiang Cai","doi":"10.17531/ein.2021.4.15","DOIUrl":"https://doi.org/10.17531/ein.2021.4.15","url":null,"abstract":"Advanced sensors and measuring technologies make it possible to monitor the product\u0000working cycle. This means the manufacturer’s warranty to ensure reliability performance\u0000can be designed by monitoring the product working cycle and the consumer’s post-warranty maintenance to sustain the post-warranty reliability can be modeled by tracking the product working cycle. However, the related works appear seldom in existing literature. In this article, we incorporate random working cycle into warranty and propose a novel warranty ensuring reliability performance of the product with random working cycles. By extending the proposed warranty to the post-warranty maintenance, besides we investigate the postwarranty random maintenance policies sustaining the post-warranty reliability, i.e., replacement last (first) with preventive maintenance (PM). The cost rate is constructed for each post-warranty random maintenance policy. Finally, sensitivity of proposed warranty and investigated polices is analyzed. We discover that replacement last (first) with PM is superior to replacement last (first).","PeriodicalId":50549,"journal":{"name":"Eksploatacja I Niezawodnosc-Maintenance and Reliability","volume":"15 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2021-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75007128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Specification of estimation of a passenger car ride smoothness under various exploitation conditions 乘用车在各种开发条件下的平顺性评价规范

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-20 DOI: 10.17531/ein.2021.4.14

G. Vaičiūnas, S. Steišūnas, G. Bureika

引用次数: 7

The study on the automated storage and retrieval system dependability 自动存取系统可靠性的研究

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-17 DOI: 10.17531/ein.2021.4.13

Konrad Lewczuk

引用次数: 2

Application of machine learning and rough set theory in lean maintenance decision support system development 机器学习和粗糙集理论在精益维修决策支持系统开发中的应用

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-14 DOI: 10.17531/ein.2021.4.12

K. Antosz, M. Jasiulewicz-Kaczmarek, Łukasz Paśko, Chao Zhang, Shaoping Wang

引用次数: 5

Remaining useful life prediction of bearings with different failure types based on multi-feature and deep convolution transfer learning 基于多特征和深度卷积迁移学习的不同失效类型轴承剩余使用寿命预测

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-12 DOI: 10.17531/ein.2021.4.11

Chenchen Wu, H. Sun, Senmiao Lin, Sheng Gao

引用次数: 1

An evaluation method of preventive renewal strategies of railway vehicles selected parts 铁路车辆选定部件预防性更新策略的评价方法

IF 2.5 3区工程技术

Eksploatacja I Niezawodnosc-Maintenance and Reliability Pub Date : 2021-09-12 DOI: 10.17531/ein.2021.4.10

J. Lewandowski, Stanisław Młynarski, R. Pilch, Maksymilian Smolnik, J. Szybka, G. Wiązania

引用次数: 3