Pub Date : 2019-01-01DOI: 10.18485/aeletters.2019.4.3.2
Nikola Palić, V. Slavkovic, Ž. Jovanović, F. Živić, N. Grujovic
{"title":"Mechanical Behaviour of Small Load Bearing Structures Fabricated by 3D Printing","authors":"Nikola Palić, V. Slavkovic, Ž. Jovanović, F. Živić, N. Grujovic","doi":"10.18485/aeletters.2019.4.3.2","DOIUrl":"https://doi.org/10.18485/aeletters.2019.4.3.2","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"51 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80676249","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}
Pub Date : 2019-01-01DOI: 10.18485/AELETTERS.2019.4.2.1
M. S. Kumar, E. Schmidová
In this work, strength and plastic deformation effect of the dual phase steel are analysed in the static and dynamic conditions. Since the dual phase steel is extensively used in the outer body parts of the automotive vehicles, their dynamic strength and plastic strain energy absorption during the crash are essential. Dynamic strength of the dual phase steel is examined using the pendulum impact hammer tester machine. Spread of the plastic strain during the crash is an important factor for the energy absorption to passive safety, which is examined using the local hardness measurement using the Vickers hardness and local indentation yield strength is calculated using the cylindrical indenter and obtained force-depth results are analysed using the Hencky theory for the plane strain indentation. Further, tested samples are observed using the scanning electron microscopy for the fracture response after the static and dynamic tests. ARTICLE HISTORY Received: 03.04.2019. Accepted: 31.05.2019. Available: 30.06.2019.
{"title":"Deformation Response of Dual Phase Steel in Static and Dynamic Conditions","authors":"M. S. Kumar, E. Schmidová","doi":"10.18485/AELETTERS.2019.4.2.1","DOIUrl":"https://doi.org/10.18485/AELETTERS.2019.4.2.1","url":null,"abstract":"In this work, strength and plastic deformation effect of the dual phase steel are analysed in the static and dynamic conditions. Since the dual phase steel is extensively used in the outer body parts of the automotive vehicles, their dynamic strength and plastic strain energy absorption during the crash are essential. Dynamic strength of the dual phase steel is examined using the pendulum impact hammer tester machine. Spread of the plastic strain during the crash is an important factor for the energy absorption to passive safety, which is examined using the local hardness measurement using the Vickers hardness and local indentation yield strength is calculated using the cylindrical indenter and obtained force-depth results are analysed using the Hencky theory for the plane strain indentation. Further, tested samples are observed using the scanning electron microscopy for the fracture response after the static and dynamic tests. ARTICLE HISTORY Received: 03.04.2019. Accepted: 31.05.2019. Available: 30.06.2019.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80223518","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}
Pub Date : 2019-01-01DOI: 10.18485/aeletters.2019.4.4.2
A. Skulić, Blaža Stojanović, S. Radosavljević, S. Veličković
: This paper deals with the analysis of impact of various factors on power loss and efficiency of worm gearing. Factors that significantly affect the power losses are, principally, types of materials of meshed gears and geometry of worm pair, type and viscosity of lubricating oils, input rotational speed, worm shape, loading, temperature, etc. Results of experimental tests of worm gearing efficiency are also presented in the paper. Tests were conducted according to planned experiment schedule on specialized device AT200, where single-stage worm gearboxes with transmission ratio i=18 has been used. During the test stage, oils of different viscosities (ISOVG 220, ISOVG 460 and ISOVG 680) have been used and their impact on efficiency was monitored. The values of efficiency level are determined at different input rotational speeds (circumferential velocity) and output torques (loads).
{"title":"Experimental Determination of Worm Gearing Efficiency","authors":"A. Skulić, Blaža Stojanović, S. Radosavljević, S. Veličković","doi":"10.18485/aeletters.2019.4.4.2","DOIUrl":"https://doi.org/10.18485/aeletters.2019.4.4.2","url":null,"abstract":": This paper deals with the analysis of impact of various factors on power loss and efficiency of worm gearing. Factors that significantly affect the power losses are, principally, types of materials of meshed gears and geometry of worm pair, type and viscosity of lubricating oils, input rotational speed, worm shape, loading, temperature, etc. Results of experimental tests of worm gearing efficiency are also presented in the paper. Tests were conducted according to planned experiment schedule on specialized device AT200, where single-stage worm gearboxes with transmission ratio i=18 has been used. During the test stage, oils of different viscosities (ISOVG 220, ISOVG 460 and ISOVG 680) have been used and their impact on efficiency was monitored. The values of efficiency level are determined at different input rotational speeds (circumferential velocity) and output torques (loads).","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88725433","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}
Pub Date : 2019-01-01DOI: 10.18485/aeletters.2019.4.3.3
N. Todić, S. Savić, S. Jovanović, Z. Djordjević
{"title":"Research of Water Hydraulic Components and Systems from Aspects of Quality of Life","authors":"N. Todić, S. Savić, S. Jovanović, Z. Djordjević","doi":"10.18485/aeletters.2019.4.3.3","DOIUrl":"https://doi.org/10.18485/aeletters.2019.4.3.3","url":null,"abstract":"","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76426575","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}
Pub Date : 2019-01-01DOI: 10.18485/AELETTERS.2019.4.1.5
Jasmina Radosavljević, Amelija Djordjević, B. Zlatkovic, B. Samardzić
The system for protector cooling (protective rubber strip) in the tyre industry is presented in this paper. The analysis of compensation of protector compression coefficients influence on the protector length change between two neighbor transporters is done. Also, the compensation of protector compression coefficients influence on all transporters velocities is analyzed. Modelling and simulation of transportation system is performed in Matlab/Simulink. ARTICLE HISTORY Received: 25.03.2019. Accepted: 30.03.2019. Available: 31.03.2019.
{"title":"Compensation of Influence of Protector Compression Coefficients in Tyre Industry","authors":"Jasmina Radosavljević, Amelija Djordjević, B. Zlatkovic, B. Samardzić","doi":"10.18485/AELETTERS.2019.4.1.5","DOIUrl":"https://doi.org/10.18485/AELETTERS.2019.4.1.5","url":null,"abstract":"The system for protector cooling (protective rubber strip) in the tyre industry is presented in this paper. The analysis of compensation of protector compression coefficients influence on the protector length change between two neighbor transporters is done. Also, the compensation of protector compression coefficients influence on all transporters velocities is analyzed. Modelling and simulation of transportation system is performed in Matlab/Simulink. ARTICLE HISTORY Received: 25.03.2019. Accepted: 30.03.2019. Available: 31.03.2019.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78735923","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}
Pub Date : 2019-01-01DOI: 10.18485/aeletters.2019.4.1.1
Ivan Matin, D. Vukelić, M. Hadzistevic, B. Strbac, D. Lukić
The aim of this paper is to present an integrated design procedure for plastic part development and manufacture. Reverse engineering (RE), reengineering (ReE) and mold design have been incorporated to infuse agile characteristics in the proposed design and development process. The integration of RE and ReE presented in this paper accelerate the design process and provide information necessary for complete injection molding process of plastic parts. The purpose is to create a new object geometrically similar to the existing object. The new object must have better mechanical properties and more favorable geometry from the standpoint of mold ability. This paper also, describes a methodology for quality geometry check of the manufactured part that is need for verified the used integrated CAD/CAE technologies. ARTICLE HISTORY Received: 16.01.2019. Accepted: 01.03.2019. Available: 31.03.2019.
{"title":"An Integrated Approach for Design and Manufacture of Plastic Products","authors":"Ivan Matin, D. Vukelić, M. Hadzistevic, B. Strbac, D. Lukić","doi":"10.18485/aeletters.2019.4.1.1","DOIUrl":"https://doi.org/10.18485/aeletters.2019.4.1.1","url":null,"abstract":"The aim of this paper is to present an integrated design procedure for plastic part development and manufacture. Reverse engineering (RE), reengineering (ReE) and mold design have been incorporated to infuse agile characteristics in the proposed design and development process. The integration of RE and ReE presented in this paper accelerate the design process and provide information necessary for complete injection molding process of plastic parts. The purpose is to create a new object geometrically similar to the existing object. The new object must have better mechanical properties and more favorable geometry from the standpoint of mold ability. This paper also, describes a methodology for quality geometry check of the manufactured part that is need for verified the used integrated CAD/CAE technologies. ARTICLE HISTORY Received: 16.01.2019. Accepted: 01.03.2019. Available: 31.03.2019.","PeriodicalId":53430,"journal":{"name":"Applied Engineering Letters","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73794990","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}
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