{"title":"Belief reliability-based design optimization method with quantile index under epistemic uncertainty","authors":"Yubing Chen, M. Wen, Qingyuan Zhang, Rui Kang","doi":"10.17531/ein/163545","DOIUrl":"https://doi.org/10.17531/ein/163545","url":null,"abstract":"Product reliability design optimization is affected by epistemic uncertainty greatly, which leaves significant risks in product use. In this paper, a new belief reliability-based design optimization (BRBDO) method under epistemic uncertainty is established to handle this problem. First, the belief reliability theory is introduced into the design optimization problem, and a quantile index is proposed to quantify belief reliability level based on uncertainty theory, through which a rapid analysis method called first order belief reliability analysis (FOBRA) method is developed. Then, according to the different trade-off strategies, two types of design optimization models are established, and corresponding FOBRA-based computation methods are also demonstrated. Finally, several case applications are studied to verify the effectiveness of the analysis and design optimization methods proposed in this paper. The results indicate that the BRODO method with the quantile index can save a lot of computational time with acceptable accuracy and can rationally cope with epistemic uncertainty.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115369452","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}
{"title":"Fault diagnosis model of rolling bearing based on parameter adaptive VMD algorithm and Sparrow Search Algorithm-Based PNN","authors":"Junxing Li, Zhiwei Liu, M. Qiu, Kaicen Niu","doi":"10.17531/ein/163547","DOIUrl":"https://doi.org/10.17531/ein/163547","url":null,"abstract":"Fault diagnosis of rolling bearings is essential to ensure the proper functioning of the entire machinery and equipment. Variational mode decomposition (VMD) and neural networks have gained widespread attention in the field of bearing fault diagnosis due to their powerful feature extraction and feature learning capacity. However, past methods usually utilize experiential knowledge to determine the key parameters in the VMD and neural networks, such as the penalty factor, the smooth factor, and so on, so that generates a poor diagnostic result. To address this problem, an Adaptive Variational Mode Decomposition (AVMD) is proposed to obtain better features to construct the fault feature matrix and Sparrow probabilistic neural network (SPNN) is constructed for rolling bearing fault diagnosis. Firstly, the unknown parameters of VMD are estimated by using the genetic algorithm (GA), then the suitable features such as kurtosis and singular value entropy are extracted by automatically adjusting the parameters of VMD. Furthermore, a probabilistic neural network (PNN) is used for bearing fault diagnosis. Meanwhile, embedding the sparrow search algorithm (SSA) into PNN to obtain the optimal smoothing factor. Finally, the proposed method is tested and evaluated on a public bearing dataset and bearing tests. The results demonstrate that the proposed method can extract suitable features and achieve high diagnostic accuracy.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131761425","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}
{"title":"Methodology for the Composite Tire Numerical Simulation Based on the Frequency Response Analysis","authors":"M. Karpenko, Paulius Skačkauskas, O. Prentkovskis","doi":"10.17531/ein/163289","DOIUrl":"https://doi.org/10.17531/ein/163289","url":null,"abstract":"Reliability and maintenance analysis in transport focus on the main\u0000objective of accident and incident investigations that benefit to better\u0000understanding of the causes of accidents and prevention of them in the\u0000future. The conducted research presents theoretical and experimental\u0000research on composite pneumatic tire used in transport engineering. The\u0000approach of the numerical simulation sequence which is offered in this\u0000research facilitates engineers in efficient determination of the dynamic\u0000properties and behaviour of vehicle tire at design stage. The tire materials\u0000have been tested by employing piezoelectric micro-vibration tests and\u0000frequency analyses. The Finite Element Method used for numerical\u0000simulation in combination with experimental measurements based on\u0000optimization by material frequency response, was applied in modelling\u0000tire material behaviour avoiding problems of composite structure\u0000modelling. The obtained results indicate that the offered methodology\u0000can be used in numerical simulation of composite tire investigation and\u0000considering material viscos-elastic properties.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116883049","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}
Xueyi Li, Kaiyu Su, Qiushi He, Xiangkai Wang, Zhijie Xie
{"title":"Research on Fault Diagnosis of Highway Bi-LSTM Based on Attention Mechanism","authors":"Xueyi Li, Kaiyu Su, Qiushi He, Xiangkai Wang, Zhijie Xie","doi":"10.17531/ein/162937","DOIUrl":"https://doi.org/10.17531/ein/162937","url":null,"abstract":"Deep groove ball bearings are widely used in rotary machinery. Accurate\u0000for bearing faults diagnosis is essential for equipment maintenance. For\u0000common depth learning methods, the feature extraction of inverse time\u0000domain signal direction and the attention to key features are usually\u0000ignored. Based on the long short term memory(LSTM) network, this\u0000study proposes an attention-based highway bidirectional long short term\u0000memory (AHBi-LSTM) network for fault diagnosis based on the raw\u0000vibration signal. By increasing the Attention mechanism and Highway,\u0000the ability of the network to extract features is increased. The\u0000bidirectional LSTM network simultaneously extracts the raw vibration\u0000signal in positive and inverse time-domains to better extract the fault\u0000features. Six deep groove ball bearings with different health conditions\u0000were used to validate the AHBi-LSTM method in an experiment. The\u0000results showed that the accuracy of the proposed method for bearing fault\u0000diagnosis was over 98%, which was 8.66% higher than that of the LSTM\u0000model. The AHBi-LSTM model is also better than other relevant models\u0000for bearing fault diagnosis.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128516565","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}
{"title":"Reliability Estimation of Burr Type III Distribution under Improved Adaptive Progressive Censoring with Application to Surface Coating","authors":"S. Asadi, H. Panahi, Sadia Anwar, S. Lone","doi":"10.17531/ein/163054","DOIUrl":"https://doi.org/10.17531/ein/163054","url":null,"abstract":"The stress-strength reliability (SSRe) model is widely investigated in\u0000reliability engineering to determine the probability of the strength\u0000component overcomes the stress imposed on it. In this paper, we\u0000studied the estimation of SSRe model based on the Burr III distribution\u0000under the improved adaptive progressive type-II censoring scheme\u0000(IAPrgCS-II). Estimation methods of the SSRe parameters are\u0000developed using frequentist and Bayesian approaches. The point and\u0000interval estimations using the maximum likelihood are considered to\u0000estimate the parameters. Two approximations are applied to compute\u0000the Bayes estimates. A simulation study is conducted for the\u0000comparison of the methods of estimation. Also, parallel to the\u0000development of reliability studies, it is necessary to study its\u0000application in different sciences such as engineering. Therefore, the\u0000droplet splashing (DrS) data under two wettabilities are proposed as an\u0000application of the considered SSRe model and methods. The results\u0000show us that the reliability model can be used to amend the quality of\u0000coatings.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133516783","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}
Z. Hryciów, P. Rybak, M. Wojciechowski, P. Wachowiak, Bartosz Kalicki
{"title":"Hydropneumatic suspension testing of a wheeled armoured personnel carrier","authors":"Z. Hryciów, P. Rybak, M. Wojciechowski, P. Wachowiak, Bartosz Kalicki","doi":"10.17531/ein/162497","DOIUrl":"https://doi.org/10.17531/ein/162497","url":null,"abstract":"The purpose of this study was to determine the effect of gas pressure and temperature on the spring characteristic of a HP strut used in a wheeled armoured personnel carrier. The research was performed based on a simulation model. Data to validate the model were obtained during experimental tests. The results indicate, among other things, that the friction generated in the seals is an important source of resistance force. Comparison of the simulation results with the measured characteristics indicates a proper modelling of the strut operation. Simulation studies have indicated that it is easy to modify the required suspension parameters by adjusting the initial gas pressure. A linear effect of pressure on static deflection can be assumed. Temperature has a strong influence on the spring characteristic. When it changes, significant changes in vehicle height are observed due to the lack of a compensation system. The temperature changes are not only due to changes in ambient temperature, but also by intense heating of the HP struts caused by the vehicle moving over rough terrain.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122005506","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}
J. Molenda, Artur Wolak, G. Zając, Patrycja Cieloch, Dominik Chudy
{"title":"Assessment of the suitability of paper chromatography for quick diagnostics of the operating condition of engine oil","authors":"J. Molenda, Artur Wolak, G. Zając, Patrycja Cieloch, Dominik Chudy","doi":"10.17531/ein/162912","DOIUrl":"https://doi.org/10.17531/ein/162912","url":null,"abstract":"Paper chromatography is a method that allows rapid assessment of the\u0000condition and identification of fuel, water and soot contaminants in\u0000engine oil. The paper contains an analysis of the suitability of rapid paper\u0000chromatography for assessing the operating quality of engine oil. It takes\u0000into account the comparison of physicochemical parameters by classical\u0000methods with the quality of commercial paper chromatography. The\u0000presented research allowed verifying the suitability of paper\u0000chromatography for laboratory evaluation of engine oil quality. It was\u0000found that a more extensive analysis of the oil condition is possible\u0000provided that the chromatographic separation time of oil dispensed onto\u0000filter paper is increased from 1 minute to 40 minutes. Linear\u0000relationships were observed between the surface area of the stain core\u0000after 40-minute separation and selected viscosity parameters (e.g.\u0000kinematic viscosity measured at 40° C). Based on rapid paper\u0000chromatography, it was found that reasonable decisions can be made\u0000about the quality of engine oil, and thus about replacement or further use\u0000of the oil.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126640636","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}
Amina Zemmouri, S. Azzouz, Djillali Benchadli, A. Ayad, K. Chaoui
{"title":"Study of the periodic thermal contact between exhaust valve and its seat in an internal combustion engine","authors":"Amina Zemmouri, S. Azzouz, Djillali Benchadli, A. Ayad, K. Chaoui","doi":"10.17531/ein/162911","DOIUrl":"https://doi.org/10.17531/ein/162911","url":null,"abstract":"The focus of internal combustion engine development for urban vehicles\u0000is shifting towards reducing materials by making them lighter. In order\u0000to maintain thermal and flow levels, a model was developed to study the\u0000thermal behavior of valve seats during periodic contact, which can also\u0000help improve engine performance and fuel efficiency. The model,\u0000composed of two cylindrical bars in periodic contact, takes into account\u0000the evolution and topography of the contact surface. The model's\u0000performance was evaluated through various experimental studies and\u0000showed a maximum difference of 5.05% with experimental values, in\u0000good agreement with previous literature. The results showed that heat\u0000flux increases with increasing contact frequency and thermal diffusivity\u0000affects conductive transfer. This model can be used by manufacturers to\u0000evaluate cylinder head temperature and by the automotive industry to\u0000improve heat transfer in engines.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133536854","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}
{"title":"Ensuring the reliability and reduction of quality control costs by minimizing process variability","authors":"M. Rogalewicz, A. Kujawińska, Adrianna Feledziak","doi":"10.17531/ein/162626","DOIUrl":"https://doi.org/10.17531/ein/162626","url":null,"abstract":"This paper presents a method for planning the range of quality control\u0000while ensuring its reliability and minimizing costs. The method is\u0000dedicated to destructive inspection, in which the cost of performing the\u0000measurement is significant in relation to the cost of manufacturing a part\u0000or product. The methodology was divided into four main stages: (1)\u0000selection of the measurement system and definition of the inspection\u0000scope and sample size, (2) process control, (3) redefining the scope of\u0000control and (4) verification of control cost and reliability after sample\u0000size change. The article presents the results of applying the author's\u0000procedure to the process of evaluating seat belts in automotive industry.\u0000Belts are used in the process of controlling the final product, which is a\u0000seat belt anchor plate. This approach allowed to reduce the number of\u0000destroyed parts during control while maintaining the credibility of the\u0000decision based on the assessment. As a result of double-decreasing the\u0000sample size, the costs of seat belt quality control were reduced.\u0000Assuming an average of 40 seat belt deliveries per year, the material cost\u0000was reduced by 50%. Limiting the sample size to 15 pieces per delivery\u0000would reduce the cost of testing from by 45%. It was achieved\u0000maintaining the appropriate level of credibility of decisions made greater\u0000than 0.8.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128554403","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}
Wenke Gao, Yu Wang, Xiwen Zhang, Zhuangzhuang Wang
{"title":"Quasi-periodic Inspection and Preventive Maintenance Policy Optimisation for\u0000a system with Wiener Process degradation","authors":"Wenke Gao, Yu Wang, Xiwen Zhang, Zhuangzhuang Wang","doi":"10.17531/ein/162433","DOIUrl":"https://doi.org/10.17531/ein/162433","url":null,"abstract":"Periodic inspection policy is performed for some degradation systems to\u0000check their degradation states, whereas it is usually difficult to\u0000implement on time due to impact of some random factors. Inspections\u0000and some maintenance actions are implemented in an inspection window\u0000with random, and thus how to optimize the inspection windows and the\u0000degradation threshold of the system to perform preventive maintenance\u0000(PM) are beneficial in practice. To this end, an optimisation of quasiperiodic\u0000inspection and PM policy with inspection window is proposed\u0000for a degradation system whose degradation followed Wiener process\u0000with a linear drift. Assume that PM can change the degradation rate and\u0000inspections are randomly performed in each inspection window. After\u0000optimisation, the optimal interval of the inspection window, the\u0000degradation threshold of PM and PM policy are determined by\u0000minimising the long-term running cost rate of the system. Finally,\u0000modeling and optimisation are illustrated using the degradation process\u0000of an axial piston pump, and the sensitivity analysis of some key\u0000parameters is conducted.","PeriodicalId":335030,"journal":{"name":"Eksploatacja i Niezawodność – Maintenance and Reliability","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122313292","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}