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Implications of pilot reliability on the probability of unmanned aircraft crashes 飞行员可靠性对无人驾驶飞机坠毁概率的影响
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7131
Rafał Perz
{"title":"Implications of pilot reliability on the probability of unmanned aircraft crashes","authors":"Rafał Perz","doi":"10.5604/01.3001.0053.7131","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7131","url":null,"abstract":"This paper presents the issue of human reliability in the perspective of the safety of missions carried out by unmanned aerial vehicles, known as drones. The ever-increasing range of applications and widespread access to drones generates the risk of collisions, which greatly affects the safety of people, the environment and infrastructure elements. The aim of this study was to determine reliability for two variants of operations scenarios for different levels of pilot experience and to compare them. The analysis of pilot reliability, carried out using the HEART method, indicated that there are a number of factors that determine the level of pilot reliability affecting the probability of a collision occurring.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084419","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
IMPACT OF SUCTION SPACE LEAKS ON THE DISCHARGE PRESSURE PULSATION OF POSITIVE DISPLACEMENT PUMP 吸入空间泄漏对容积泵排出压力脉动的影响
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.6841
Dominik Rabsztyn, Klaudiusz Klarecki
{"title":"IMPACT OF SUCTION SPACE LEAKS ON THE DISCHARGE PRESSURE PULSATION OF POSITIVE DISPLACEMENT PUMP","authors":"Dominik Rabsztyn, Klaudiusz Klarecki","doi":"10.5604/01.3001.0053.6841","DOIUrl":"https://doi.org/10.5604/01.3001.0053.6841","url":null,"abstract":"This paper presents the results of the experiments related to measuring the impact of the suction space leaks in the gear pump on the pressure pulsation, resulting in the aeration of hydraulic fluid. The research authors claim that it is possible to detect leaks in the suction line, causing aeration of the hydraulic fluid, by recording and analyzing the pressure pulsation in the positive displacement pump discharge line. The measurements were performed for six leakage values, five discharge pressure settings and under constant hydraulic fluid temperature. The obtained results were analyzed in the time and frequency domains. The results of experimental research confirmed the author’s thesis.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084425","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
Development of a hybrid predictive maintenance model 混合预测维护模型的开发
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7130
Jakub Wiercioch
{"title":"Development of a hybrid predictive maintenance model","authors":"Jakub Wiercioch","doi":"10.5604/01.3001.0053.7130","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7130","url":null,"abstract":"Progress in the field of technology and science enables the digitalization of manufacturing processes in the era of Industry 4.0. For this purpose, it uses tools which are referred to as the technological pillars of Industry 4.0. Simultaneously with the changes in the field of manufacturing, the interdisciplinary cooperation between production and machine maintenance planning is developing. Different types of predictive maintenance models are being developed in order to ensure the good condition of the machines, optimize maintenance costs and minimize machine downtime. The article presents the existing types of predictive maintenance and selected methods of machine diagnostics that can be used to analyze machines operating parameters. A hybrid model of predictive maintenance was developed and described. The proposed model is based on diagnostic data, historical data on failures and mathematical models. The use of complementary types of predictive maintenance in the hybrid model of predictive maintenance is particularly important in the case of high-performance production lines, where high quality of products and timeliness of orders are crucial.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084431","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 false alarm causes in video fire detection systems 视频火灾探测系统虚警原因分析
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7134
Michał Mazur, Michał Wiśnios, Jacek Paś
{"title":"Analysis of false alarm causes in video fire detection systems","authors":"Michał Mazur, Michał Wiśnios, Jacek Paś","doi":"10.5604/01.3001.0053.7134","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7134","url":null,"abstract":"Video-based fire detection systems represent an innovative path in fire signalling. Thanks to a suitably designed algorithm, a system of this kind can enable the detection of a flame based on its characteristics such as colour or shape, which were not previously used in classical fire detection systems. Video-based detection systems, due to their early stage of development in the fire protection market, are not yet a certified, fully tested method for early fire detection. This paper focuses on the analysis of possible causes of false alarms occurring in video-based fire detection systems in relation to classical Fire Alarm Systems (FAS). For this purpose, a video-based flame detection algorithm is designed and implemented to further analyse the phenomena occurring in such systems.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084423","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
Space rocket for air-rocket system 航空火箭系统用航天火箭
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7125
Piotr ZALEWSKI, Stanisław Kachel, Krzysztof Motyl
{"title":"Space rocket for air-rocket system","authors":"Piotr ZALEWSKI, Stanisław Kachel, Krzysztof Motyl","doi":"10.5604/01.3001.0053.7125","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7125","url":null,"abstract":"The traditional and most used method of launching payloads into Earth orbit is to launch a carrier rocket from the surface. An alternative method of space transport is launching payloads into Earth's orbit using air-rocket (air-assisted) systems. The concept of mixed space transport involves launching a space rocket with a payload from an aircraft or other reusable platform-carrier at a specific altitude above the Earth's surface. The air-rocket system enables the launch of small satellites while reducing ground infrastructure and costs. Such a method seems promising in the context of relatively cheap, mobile and responsive small payload launch systems. It is an interesting proposition and beneficial especially for countries without convenient conditions to build their own spaceport. The paper analyses the fundamental requirements for the design of rockets used in this type of system and performs preliminary calculations of a conceptual two- and three-stage rocket capable of lifting a payload of 10 kg into a zero-inclination orbit at an altitude of 500 km. The analyses carried out were based on available research reports in this area.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084421","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
Verification of the renewal strategy obtained using a modified decision-random model 使用改进的决策随机模型验证更新策略
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7128
Jakub Lewandowski, Robert Pilch, Maksymilian Smolnik
{"title":"Verification of the renewal strategy obtained using a modified decision-random model","authors":"Jakub Lewandowski, Robert Pilch, Maksymilian Smolnik","doi":"10.5604/01.3001.0053.7128","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7128","url":null,"abstract":"The paper presents a verification of the preventive renewal strategies obtained with the decision-random models modified to take into consideration the diverse nature of maintenance activities. The analysis of the obtained strategies was performed by simulation, considering changes to the input values. The costs and numbers of maintenance activities were summarized depending on the individual values, and the total costs of the strategies obtained from the model were compared with strategies assuming renewal every shorter and longer period. This allowed conclusions to be made about the economic viability of using the presented algorithm.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084426","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
The application of infrared spectroscopy for monitoring fuel content in synthetic lubricating oils used in aviation engines 红外光谱技术在航空发动机合成润滑油燃油含量监测中的应用
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7126
Marta Skolniak, Dawid Kapica, Maciej Deliś
{"title":"The application of infrared spectroscopy for monitoring fuel content in synthetic lubricating oils used in aviation engines","authors":"Marta Skolniak, Dawid Kapica, Maciej Deliś","doi":"10.5604/01.3001.0053.7126","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7126","url":null,"abstract":"The research paper presents the conducted tests for determination of fuel content in a synthetic lubricating oil used in aviation engines. The authors applied infrared spectroscopy for quantitative determination of Jet A-1 aviation fuel content in ester-based synthetic oil used in the engines of Polish Armed Forces aircraft. The obtained results were compared with the results of tests conducted using the technique that employs acoustic surface wave measurement.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084424","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
Geogrid as an effective reinforcement of natural airfield pavements 土工格栅作为天然机场路面的有效加固
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7102
Agata Kowalewska, Mariusz Wesołowski, Sylwester Kłysz
{"title":"Geogrid as an effective reinforcement of natural airfield pavements","authors":"Agata Kowalewska, Mariusz Wesołowski, Sylwester Kłysz","doi":"10.5604/01.3001.0053.7102","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7102","url":null,"abstract":"The load-bearing capacity of natural airfield pavements is crucial for air operations safety. Taking into account the insufficient load-bearing capacity of natural airfield pavements, which is confirmed by the conducted tests in this field, the article presents a tangible impact of the application of geocells (geogrids) as an efficient way of their reinforcement with particular emphasis on the improvement of their load-bearing capacity. The recovery time of airfield operational capability compared to the currently applied reinforcement methods of natural pavements, such as mechanical or chemical surface stabilization or surface replacement, was showcased.","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084420","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
A contribution to structural reliability analysis of composite high-pressure hydrogen storage tanks 对复合材料高压储氢罐结构可靠性分析的贡献
Journal of Konbin Pub Date : 2023-06-23 DOI: 10.5604/01.3001.0053.7104
Youcef Sid Amer, Samir Benammar, Kong Fah Tee, Mohammed Wadi, Mohammed S. Jouda
{"title":"A contribution to structural reliability analysis of composite high-pressure hydrogen storage tanks","authors":"Youcef Sid Amer, Samir Benammar, Kong Fah Tee, Mohammed Wadi, Mohammed S. Jouda","doi":"10.5604/01.3001.0053.7104","DOIUrl":"https://doi.org/10.5604/01.3001.0053.7104","url":null,"abstract":"Although composite high-pressure tanks are a subject of growing interest, especially for hydrogen storage applications, a detailed structural reliability analysis still needs to be improved. This work aims to provide a probabilistic investigation of the mechanical response of composite high-pressure hydrogen storage tanks using the Monte Carlo Simulation method. A performance function based on the circumferential model of composite pressure cylinders is employed with five random design variables. According to the results, the internal pressure and the helical layer thickness are the foremost parameters significantly impacting the structural reliability of the tank, whereas, the helical layer thickness and winding angles have a minor influence. In addition, high coefficients of variation values cause the contraction of the safety margin potentially leading to the failure of the composite hydrogen high-pressure tank. The obtained results were validated with experimental tests available in the literature","PeriodicalId":499758,"journal":{"name":"Journal of Konbin","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136084432","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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