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Bulletin of the Military University of Technology最新文献

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Analysis of the possibility of using rubber track systems in high-speed engineering machines. Part I. Review of design solutions 高速工程机械采用橡胶履带系统的可能性分析。第一部分:设计方案回顾
Bulletin of the Military University of Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.6960
Daniela Szpaczyńska, M. Łopatka
{"title":"Analysis of the possibility of using rubber track systems in high-speed engineering machines. Part I. Review of design solutions","authors":"Daniela Szpaczyńska, M. Łopatka","doi":"10.5604/01.3001.0015.6960","DOIUrl":"https://doi.org/10.5604/01.3001.0015.6960","url":null,"abstract":"The article presents an analysis of the design solutions of the running gear with rubber tracks in terms of their applicability in high-speed engineering machines that require intensive maneuvering and the ability to develop high tractive forces. Both solutions used in civil applications and the results of research on the use of rubber tracks in heavy armored vehicles were analyzed. On their basis, recommendations were formulated for the design of high-speed engineering machines and the rubber track systems used in them.\u0000Keywords: mechanical engineering, elastomer tracks, running gear, high-speed engineering machines\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128898068","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
Perforation analysis of selected thin-walled structures 选定薄壁结构的穿孔分析
Bulletin of the Military University of Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.6958
A. Popławski, Weronika Piskorz
{"title":"Perforation analysis of selected thin-walled structures","authors":"A. Popławski, Weronika Piskorz","doi":"10.5604/01.3001.0015.6958","DOIUrl":"https://doi.org/10.5604/01.3001.0015.6958","url":null,"abstract":"The paper concerns multivariate numerical analyses of three thin-walled three-dimensional structures of honeycomb, rectangular and auxetic topologies. The analyses were preceded by the selection of the material from which the structures could potentially be made. The most optimal material was selected from three metallic materials for which an advanced constitutive material model and a failure model were available. The use of an appropriate model has allowed a number of phenomena to be taken into account during the very complex perforation process, which translates into the quality and accuracy of the numerical results obtained. The main numerical analyses carried out after the material selection stage, focused on the analysis of the strength of the structures in the process of their perforation with objects in the form of a ball with a diameter of 10 mm. The three objects hitting the structures were arranged in such a way as to take into account the influence of the impact location on the perforation process. Based on the measurement of the perforation depth of the balls and the analysis of the area of impact on the structure, the most strength topology was selected. In the next step, additional numerical analyses were carried out to determine the effectiveness of the structure and to estimate its ballistic limit.\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126784360","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
Construction analysis of non-pneumatic tires 无充气轮胎结构分析
Bulletin of the Military University of Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.6962
M. Żmuda
{"title":"Construction analysis of non-pneumatic tires","authors":"M. Żmuda","doi":"10.5604/01.3001.0015.6962","DOIUrl":"https://doi.org/10.5604/01.3001.0015.6962","url":null,"abstract":"Non-pneumatic tires are not a new construction. The first information about them appeared before the invention of pneumatic tires. Appropriate materials and design for the flexible structure and band of modern non-pressure wheels are designed to mimic the functions of compressed air of a pneumatic tire. Mentioning the elements of the wheel structure will determine the nature of the load carring. Mentioning the elements of the wheel structure will determine the nature of the load transfer. Currently, the dominant form of flexible structure are: single spokes and a cellular structure made of polygons. The band comprises at least one reinforcement layer of inextensible material. The number of reinforcement layers and their shape will influence the behavior of the wheel during loading.\u0000Keywords: mechanical engineering, non-pneumatic tire, wheel\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133735216","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: 2
Respiratory protection ‒ new challenges 呼吸保护——新的挑战
Bulletin of the Military University of Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.6963
W. Harmata, Dorota Kamionek
{"title":"Respiratory protection ‒ new challenges","authors":"W. Harmata, Dorota Kamionek","doi":"10.5604/01.3001.0015.6963","DOIUrl":"https://doi.org/10.5604/01.3001.0015.6963","url":null,"abstract":"The paper characterizes the problem of air pollution with smog. The possibility of SARS-CoV-2 virus transmission on particulate matter and the possibility of infection was analyzed. Individual respiratory protection measures available on the market were analyzed in terms of mass use, taking into account legal and normative requirements.\u0000Keywords: personal protective equipment, respiratory protection\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"149 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122457129","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
Comparative analysis of different types of ballistic barrels used in the ammunition researches 不同类型弹道炮管在弹药研究中的应用对比分析
Bulletin of the Military University of Technology Pub Date : 2021-03-31 DOI: 10.5604/01.3001.0015.6956
D. Goździk, B. Fikus, Jacek Kijewski
{"title":"Comparative analysis of different types of ballistic barrels used in the ammunition researches","authors":"D. Goździk, B. Fikus, Jacek Kijewski","doi":"10.5604/01.3001.0015.6956","DOIUrl":"https://doi.org/10.5604/01.3001.0015.6956","url":null,"abstract":"Manufacturers offer different types of ballistic barrels made in according to various standards. The paper presents comparison of three types of ballistic barrels: pressure, velocity and accuracy made according to C.I.P. and NATO EPVAT standards. Projectile velocities in a several measuring points on the flight path and propellant gas pressures in the barrels were measured and compared. The main aim of the article is to discuss whether all types of barrels to conduct most ballistic tests are needed, or whether one, the most universal in a specific caliber is enough.\u0000Keywords: mechanical engineering, ballistics, firearm, ammunition researches, ballistic properties\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116693181","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
Problems of water separation from diesel fuel 柴油水分离问题
Bulletin of the Military University of Technology Pub Date : 2020-12-31 DOI: 10.5604/01.3001.0015.3624
Wioletta Górska-Włodarczyk
{"title":"Problems of water separation from diesel fuel","authors":"Wioletta Górska-Włodarczyk","doi":"10.5604/01.3001.0015.3624","DOIUrl":"https://doi.org/10.5604/01.3001.0015.3624","url":null,"abstract":"This study presents the effect of water on the quality of diesel fuel, including the chemical\u0000effects of its presence in the fuel. The issues of purifying diesel fuel from water (i.e. its separation from\u0000fuels) with the currently used filtering materials were analysed. The possibilities of improving the\u0000efficiency of the water pollution removal process through the use of filters made of graphene materials\u0000were presented, based on tests performed for other types of fuels. Additionally, the bactericidal\u0000properties of graphene compounds were indicated, which show the ability to eliminate a microbial\u0000contamination of fuels occurring in the presence of water.\u0000Keywords: diesel fuel, water separation, graphene filters, fuel filtration\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123568591","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
On the possibility of surface transversal wave guidance in an elastic subsurface layer of cubic crystal systems with periodic material inhomogeneities 具有周期性材料不均匀性的立方晶体系统弹性亚表面层表面横波引导的可能性
Bulletin of the Military University of Technology Pub Date : 2020-12-31 DOI: 10.5604/01.3001.0015.3828
Jerzy Kapelewski †, M. Pasternak
{"title":"On the possibility of surface transversal wave guidance in an elastic subsurface layer of cubic crystal systems with periodic material inhomogeneities","authors":"Jerzy Kapelewski †, M. Pasternak","doi":"10.5604/01.3001.0015.3828","DOIUrl":"https://doi.org/10.5604/01.3001.0015.3828","url":null,"abstract":"In the paper, the possibility of surface transversal waves existence on an elastic surface layer with artificially induced periodic inhomogeneities has been described. Such kind of waves, unlike well-known surface modes sustained close to the surface boundary by an elastic layer as well\u0000as constant or periodic electrical short, have potential to transfer higher energy with higher velocity. Such parameters are very important for applications of sensors. In the work, some outline of the theory, chosen qualitative aspects of such wave propagation on regular crystal surfaces as well as the results\u0000of preliminary experimental tests were presented.\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121090408","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
Examination of lubricity properties of mineral base oil, containing nanoparticles of hexagonal boron nitride, and evaluation of the influence of surfactants on their sedimentation 含六方氮化硼纳米颗粒矿物基础油润滑性能的研究，以及表面活性剂对其沉降影响的评价
Bulletin of the Military University of Technology Pub Date : 2020-12-31 DOI: 10.5604/01.3001.0015.3623
A. Chodkiewicz, T. Kałdoński
{"title":"Examination of lubricity properties of mineral base oil, containing nanoparticles of hexagonal boron nitride, and evaluation of the influence of surfactants on their sedimentation","authors":"A. Chodkiewicz, T. Kałdoński","doi":"10.5604/01.3001.0015.3623","DOIUrl":"https://doi.org/10.5604/01.3001.0015.3623","url":null,"abstract":"The article presents the results of tests on the lubricity properties of SN150 base oil containing\u0000hexagonal boron nitride (h-BN) of different granulation. The boron nitride with a particle size below\u0000100 nm and the second one with a particle size below 25 μm were used. The lubricity tests were carried\u0000out on a four-ball apparatus. The methodology of these tests was determined on the basis of the normative\u0000document PN-EN ISO 20623: 2018-02, which contains the following parameters characterising the\u0000lubricity: initial seizure load ISL [N], weld load WL [N], load-wear index LWI [N], mean wear scar\u0000diameter MWSD [mm] obtained in a long duration wear test under a specified load; wear-load curve,\u0000i.e., the dependence of the mean wear scar diameter on the load, was also performed. Tests were also\u0000carried out to check the influence of selected surfactants on the sedimentation process of hexagonal\u0000boron nitride in the SN150 mineral base oil. Based on the conducted research and their analysis, it\u0000was found that hexagonal boron nitride has a positive effect on the lubricating properties of the base\u0000oil; better results were obtained for the boron nano-nitride with a particle size below 100 nm. It was\u0000also found that the problem of sedimentation of the solid particles of hexagonal boron nitride was\u0000solved by the addition of succinimide dispersant.\u0000Keywords: tribology, lubricity, boron nitride, surfactants, sedimentation\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125491523","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
Operational decontamination 操作去污
Bulletin of the Military University of Technology Pub Date : 2020-06-30 DOI: 10.5604/01.3001.0014.5637
W. Harmata
{"title":"Operational decontamination","authors":"W. Harmata","doi":"10.5604/01.3001.0014.5637","DOIUrl":"https://doi.org/10.5604/01.3001.0014.5637","url":null,"abstract":"The paper describes the operational decontamination as a system for protection of troops in case of threat of contamination in functional and task-related terms. A critical analysis of technical equipment and post-contamination procedures is presented.\u0000Keywords: nuclear, biological and chemical defence, decontamination, disinfection, deactivation\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123835718","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
Knowledge base for wind farm devices in the computer expert system 计算机专家系统中的风电场设备知识库
Bulletin of the Military University of Technology Pub Date : 2020-02-28 DOI: 10.5604/01.3001.0013.9734
R. Duer, S. Duer, Lech Drawski
{"title":"Knowledge base for wind farm devices in the computer expert system","authors":"R. Duer, S. Duer, Lech Drawski","doi":"10.5604/01.3001.0013.9734","DOIUrl":"https://doi.org/10.5604/01.3001.0013.9734","url":null,"abstract":"The article presents the issue of determining diagnostic information for the needs of testing the condition of wind farm equipment. To this end, the essence of the structure of an intelligent expert system was presented and described. The structure of the tested object is shown in the form of a functional and diagnostic model. Based on the developed model of the examined object, diagnostic information was determined in the form of a set of basic elements and a set of diagnostic signals, which are later used in the construction of an expert knowledge base. The expert knowledge base is determined by sets of facts and rules applied. An important part of this article is description of the structure of the expert system and the expert knowledge base used in it.\u0000Keywords: wind farm, renewable energy, technical diagnostics, diagnostic inference, artificial intelligence\u0000\u0000","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133158954","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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