Problemy Mechatroniki最新文献

The Complete Set of Distinguishable Diagnostic States for a Centrifugal Pump System 离心泵系统可分辨诊断状态的完备集

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8822

Paweł SZCZEPAŃSKI (paszczep@wp.pl), Robert KIJAK (kijakr@gmail.com)

{"title":"The Complete Set of Distinguishable Diagnostic States for a Centrifugal Pump System","authors":"Paweł SZCZEPAŃSKI (paszczep@wp.pl), Robert KIJAK (kijakr@gmail.com)","doi":"10.5604/01.3001.0053.8822","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8822","url":null,"abstract":"In this article, the concept of determination of a complete set of distinguishable diagnostic states has been utilised, which has been well known since the 1980’s and, in essence, could refer to any item with any application and any structural features. The only condition set for this item, is its ability to be described by a structure consisting of single exit-point elements. As a consequence, it can become possible to assess, amongst other things, its layers, strong cohesions, transitive and antitransitive closures. Typical tools of such assessment are matrices: transition and reachability. The reason that a centrifugal pump has been selected is not only its importance and common use, but also specifics of interaction of its elements. It is possible to identify for them: independence, dependence, and interdependence. For particular distinguishable diagnostic states, the probabilities of its occurrence have been determined. These probabilities have become a starting point to estimate structure entropy and intensity of transition from the health to any particular failure state. Results of such estimation have been depicted by relevant graphs. A reference has been made to the Bayesian methods and the inseparable ‘serial reliability structure’, to identify their flaws that result particularly from simplifications leading to false and ambiguous diagnoses. The probabilities of health for particular elements have been differentiated by the selection of adequate Weibull indices.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136271511","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

Testing the Mechanical Response of Additively Manufactured Composite Joints 增材制造复合材料接头的力学响应测试

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8820

Kamil RAJKOWSKI (kamil.rajkowski@wat.edu.pl), Tomasz MAJEWSKI (tomasz.majewski@wat.edu.pl)

{"title":"Testing the Mechanical Response of Additively Manufactured Composite Joints","authors":"Kamil RAJKOWSKI (kamil.rajkowski@wat.edu.pl), Tomasz MAJEWSKI (tomasz.majewski@wat.edu.pl)","doi":"10.5604/01.3001.0053.8820","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8820","url":null,"abstract":"This paper aims to assess the quality of composite joints made with the Fused Filament Fabrication (FFF) additive manufacturing technique through strength tests. The first part of this paper details the design of different test sample versions with standardised geometry and the methods of joining plastics by application of 3D printing. The details cover the test apparatus used in the research, sample preparation methodology, as well as tensile and impact testing methodology. The test sample versions were selected according to the test types to have the results fully reproduce the mechanical response of the composite materials to the input forces. The second part of this paper analysis of the test results, presenting the fabrication accuracy of the test samples and their mechanical response recorded during the tests. Five test specimens of each version were produced to enable statistical analysis of the test results, which was indispensable for a reliable data analysis. The tests made it possible to determine how the proposed joints of plastic materials responded to the input forces, the maximum transmitted force limit, and the flaws of each version’s design. The test results made it possible to adapt the suggested solutions in the design engineering of programmable energy-absorbing structures.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136271502","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 Solid, Low-Smoke Rocket Propellant – Smoke Generation Intensity Tests Using a Laser and Photodiode Setup 固体低烟火箭推进剂的研制——用激光和光电二极管装置进行烟生强度试验

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8819

Przemysław WOŹNIAK (przemyslaw.wozniak.dokt@pw.edu.pl), Jan KINDRACKI (Jan.Kindracki@pw.edu.pl), Krzysztof WACKO (krzysztof.wacko@pw.edu.pl), Tomasz GOŁOFIT (tomgol@ch.pw.edu.pl), Michał CHMIELAREK (michal.chmielarek@pw.edu.pl), Katarzyna CIEŚLAK (kcieslak@ch.pw.edu.pl), Sylwia KOZŁOWSKA (sylwia.kozlowska3.dokt@pw.edu.pl), Paweł MAKSIMOWSKI (pmaksimowski@ch.pw.edu.pl), Łukasz MĘŻYK (lukasz.mezyk@pw.edu.pl), Maciej KOŁODZIEJ (maciej.kolodziej.dokt@pw.edu.pl), Dominik ZDYBAŁ (dominik.zdybal.dokt@pw.edu.pl)

{"title":"Development of a Solid, Low-Smoke Rocket Propellant – Smoke Generation Intensity Tests Using a Laser and Photodiode Setup","authors":"Przemysław WOŹNIAK (przemyslaw.wozniak.dokt@pw.edu.pl), Jan KINDRACKI (Jan.Kindracki@pw.edu.pl), Krzysztof WACKO (krzysztof.wacko@pw.edu.pl), Tomasz GOŁOFIT (tomgol@ch.pw.edu.pl), Michał CHMIELAREK (michal.chmielarek@pw.edu.pl), Katarzyna CIEŚLAK (kcieslak@ch.pw.edu.pl), Sylwia KOZŁOWSKA (sylwia.kozlowska3.dokt@pw.edu.pl), Paweł MAKSIMOWSKI (pmaksimowski@ch.pw.edu.pl), Łukasz MĘŻYK (lukasz.mezyk@pw.edu.pl), Maciej KOŁODZIEJ (maciej.kolodziej.dokt@pw.edu.pl), Dominik ZDYBAŁ (dominik.zdybal.dokt@pw.edu.pl)","doi":"10.5604/01.3001.0053.8819","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8819","url":null,"abstract":"The work completed and discussed in this paper was to determine the level of smoke generation intensity in a selection of solid rocket propellants developed to minimise the level of generated smoke. This is an important issue for the application of the developed low-smoke propellant in, for example, the sustainer motor of a rocket missile. Reduced smoke generation levels can help to significantly reduce the feasibility of enemy detecting rocket munition launch sites. The authors of this paper developed a test stand that quantified the smoke generation intensity in rocket propellants. The test stand setup, based on the scatter of a laser beam by smoke, measured the smoke generation intensity, including during the operation of a rocket motor. A rocket micromotor was used along with a test chamber to measure the intensity of the smoke generated. It was located directly behind the motor exhaust and provided three laser-photodiode measurement channels. Tests of the smoke generated during the combustion of black powder and a standard mixture of HTPB and AP at a ratio of 20:80 provided reference baselines for the smoke generation intensity tests on the developed rocket propellants. The authors determined the smoke generation intensity of the propellants based on ADN, HTPB, and GAP with various additives. The results produced made it possible to compare the tested materials and select the most preferable materials as measured by their low smoke generation intensity.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136271512","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

Mechanical Response of Additively Manufactured Composite Joints 增材制造复合材料接头的力学响应

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8958

Kamil RAJKOWSKI (kamil.rajkowski@wat.edu.pl), Tomasz MAJEWSKI (tomasz.majewski@wat.edu.pl)

{"title":"Mechanical Response of Additively Manufactured Composite Joints","authors":"Kamil RAJKOWSKI (kamil.rajkowski@wat.edu.pl), Tomasz MAJEWSKI (tomasz.majewski@wat.edu.pl)","doi":"10.5604/01.3001.0053.8958","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8958","url":null,"abstract":"This paper aims to assess the quality of composite joints made with the Fused Filament Fabrication (FFF) additive manufacturing technique through strength tests. The first part of this paper details the design of different test sample versions with standardised geometry and the methods of joining plastics by application of 3D printing. The details cover the test apparatus used in the research, sample preparation methodology, as well as tensile and impact testing methodology. The test sample versions were selected according to the test types to have the results fully reproduce the mechanical response of the composite materials to the input forces. The second part of this paper analysis of the test results, presenting the fabrication accuracy of the test samples and their mechanical response recorded during the tests. Five test specimens of each version were produced to enable statistical analysis of the test results, which was indispensable for a reliable data analysis. The tests made it possible to determine how the proposed joints of plastic materials responded to the input forces, the maximum transmitted force limit, and the flaws of each version’s design. The test results made it possible to adapt the suggested solutions in the design engineering of programmable energy-absorbing structures.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136277204","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

Badania lotu przeciwpancernego pocisku kierowanego Pirat z funkcją „top attack” 具有 "顶部攻击 "功能的 "皮拉特 "反坦克制导导弹的飞行试验

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8817

Damian GOŁOŚ (dgolos@telesystem.eu), Paweł ZAWADA (pzawada@telesystem.eu), Janusz NOGA (jnoga@telesystem.eu), Krzysztof MOTYL (krzysztof.motyl@wat.edu.pl)

引用次数: 0

Modelling and Testing the Dynamic Properties in a Submachine Gun-Man System 冲锋枪-人系统动态特性建模与测试

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8818

Zbigniew J. DZIOPA (zdziopa@tu.kielce.pl), Andrzej LENARCIK (andrzej.lenarcik@gmail.com), Krzysztof ZDEB (krzysztofzdeb@gmail.com)

{"title":"Modelling and Testing the Dynamic Properties in a Submachine Gun-Man System","authors":"Zbigniew J. DZIOPA (zdziopa@tu.kielce.pl), Andrzej LENARCIK (andrzej.lenarcik@gmail.com), Krzysztof ZDEB (krzysztofzdeb@gmail.com)","doi":"10.5604/01.3001.0053.8818","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8818","url":null,"abstract":"This work was an attempt at an analysis of the interaction between a firearm and a human, exemplified by a cal. 9 mm submachine gun (SMG), PM-98 GLAUBERYT and a trained, professional shooter - a Police special team operator. The results of the analysis made it possible to develop several guidelines aimed at designing the dynamic performance of SMGs to improve their aiming accuracy. In connection with this work, experimental tests were performed at a firing range, where the process of firearm discharge was recorded using a Phantom slow-motion digital camera. What followed was the analysis of the video record using the Tema dedicated computer software. The SMG’s dynamic performance was adjusted to reduce the hit scatter. Based on the results of the empirical tests at the firing range, physical and mathematical models of the SMG-operator system were formulated. The SMG-operator system was simulated in the Scilab software, which provided time-based variation trends of the kinematic quantities that characterised the movements of individual modelled objects. The variation trends determined included displacement, velocity and acceleration of the SMG, its bolt assembly, and the human operator as a function of time. The results of the theoretical analysis were compared to the empirical test results from the firing range. It was found that in the virtual modelling space, the SMG model had a performance similar to that of its real counterpart. With the theoretical model verified, several performance parameters of the SMG were modified and guidelines were developed that could improve the aim.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136271672","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 Method of Analysing TNT and its Derivatives in the Trichoptera Larvae of the Genus Hydropsyche Angustipennis, Curtis 1834, Selected as a Bioaccumulation Indicator for the Detection of Aquatic Environment Pollution with Explosive Residues 水蚤(Hydropsyche Angustipennis, Curtis 1834)毛翅目幼虫中TNT及其衍生物含量测定方法的建立(英文

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8821

Izabela M. MAZUR (mazurim@witu.mil.pl), Piotr A. BARAN (baranp@witu.mil.pl), Piotr M. KASPRZAK (kasprzakp@witu.mil.pl), Mariusz TSZYDEL (mariusz.tszydel@biol.uni.lodz.pl), Dagmara BŁOŃSKA (dagmara.blonska@biol.uni.lodz.pl)

{"title":"Development of a Method of Analysing TNT and its Derivatives in the Trichoptera Larvae of the Genus Hydropsyche Angustipennis, Curtis 1834, Selected as a Bioaccumulation Indicator for the Detection of Aquatic Environment Pollution with Explosive Residues","authors":"Izabela M. MAZUR (mazurim@witu.mil.pl), Piotr A. BARAN (baranp@witu.mil.pl), Piotr M. KASPRZAK (kasprzakp@witu.mil.pl), Mariusz TSZYDEL (mariusz.tszydel@biol.uni.lodz.pl), Dagmara BŁOŃSKA (dagmara.blonska@biol.uni.lodz.pl)","doi":"10.5604/01.3001.0053.8821","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8821","url":null,"abstract":"Threats associated with the production, storage and use of warfare agents containing high explosives against the backdrop of political and social events emerging in the 21st century present new challenges for specialized laboratories involved in detecting contamination and identifying its source. A common analytical problem in studies conducted in the ecosystem is the low concentration of the test substance - below the detection limit of the instrument. Helpful in solving this dilemma are accumulation bio-markers, which appear to be an excellent tool for detecting contamination in, for example, flowing water. Such biomarkers make it possible to determine the presence of specific chemical agents at the same time they are a sensitive indicator of the ecosystem's response to contamination. The presented chromatographic method allows quantitative and qualitative determination of 2,6-diamino-4-nitrotoluene, 2,4-diamino-6- nitrotoluene, 1,3,5-trinitrobenzene, trinitrotoluene, 2-amino-4,6-dinitrotoluene, 4-amino-2,6-dinitrotoluene and tetryl in the biological matrix. The effects of accumulation in the tissue of crustaceans on TNT test solutions were studied from 1 to 24 hours. The saturation effect was observed and the concentration of TNT derivatives was measured. The observed effects confirmed the usefulness of the selected larva as a bio-indicator of TNT contaminant accumulation in the ecosystem.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136271503","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

Threats to Military Institutions Arising from Operating in the Social Media Environment 社交媒体环境对军事机构的威胁

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8824

Renata KOWALIK (kowalikr@witu.mil.pl), Ewa ZAWÓŁ (zawole@witu.mil.pl)

{"title":"Threats to Military Institutions Arising from Operating in the Social Media Environment","authors":"Renata KOWALIK (kowalikr@witu.mil.pl), Ewa ZAWÓŁ (zawole@witu.mil.pl)","doi":"10.5604/01.3001.0053.8824","DOIUrl":"https://doi.org/10.5604/01.3001.0053.8824","url":null,"abstract":"The purpose of this paper is to present the scale of the effect that using the Internet can have on national security, and to raise awareness about the use of social media. The lack of security on the Internet or any regulations of law applicable to it must make us aware of the types of threats that originate from using the mobile apps, social media, and instant messengers that play a major role in our lives. Information security, construed as protection of information against inadvertent or wilful disclosure, modification, or enabling its processing or destruction, can be viewed from a technological and cognitive standpoint. The phenomenon of social media is driven by the human need for belonging, respect, and recognition. We seek acceptance from others, and not necessarily from our closest circles. This, in turn triggers a stimulus to share everything we do in the public space. The latest electronic devices make it possible to precisely locate their users. Online posts that we publish without understanding what could be garnered from them can be useful to a potential adversary. With the problem characterised like this, it can be anticipated that exploitation of social media can be a source of threats to national security. The hazards are becoming increasingly pertinent to the security of the military institutions that use the attributes of social media. This paper is an overview aimed at structuring and presenting the collected knowledge and raising awareness of social media in the context of the national security of military institutions. This paper uses theoretical research methods that include generalisation, analysis, synthesis, and inference.","PeriodicalId":52820,"journal":{"name":"Problemy Mechatroniki","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136271671","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

Integration of Systems of the Exemplary Model Using Modern Tools of Industry 4.0 利用工业4.0的现代工具集成示范性模型的系统

Problemy Mechatroniki Pub Date : 2023-09-30 DOI: 10.5604/01.3001.0053.8823

Natalia DANIEL (natalia.daniel@wat.edu.pl), Wojciech KACZMAREK (wojciech.kaczmarek@wat.edu.pl), Szymon BORYS (szymon.borys@wat.edu.pl), Robert PASZKOWSKI (robert.paszkowski@wat.edu.pl)

引用次数: 0

Mechanical Compression Behaviour of "Green" Rocket Propellants “绿色”火箭推进剂的机械压缩特性

Problemy Mechatroniki Pub Date : 2023-06-30 DOI: 10.5604/01.3001.0053.6668

Florin-Marian Dîrloman, T. Rotariu, A. Rotariu, Gabriela Toader, L. Matache, Gabriel F. Noja

引用次数: 0