Pub Date : 2022-12-20DOI: 10.54684/ijmmt.2022.14.2.226
A. Sabau, M. Barhalescu, R. Zăgan
When it comes to designing a mini-submarine, the most important questions are what it should look like to achieve the purpose for which it was built and what propulsion force is required to operate it at expected parameters. This paper aims to answer some of these questions using a numerical analysis designed to optimize the body shape using the Ansys CFX software package. The mini-submarine understudy is research one and it is equipped with eight thrusters. The optimization aims to choose an optimal body shape between the frame type which is the simplest, cheapest, easiest to execute and offers easy access to all components, and the closed hull type which is more compact has lower hydrodynamic resistance, but is difficult to execute, is expensive and difficult to access inside for interventions and inspection. The cases of study are incompressible turbulent flow for a complete submerged body, distinguished by the complexity of the form and the conditions under which the computation must be performed. The simulation will be done at several speeds, according to the known power of the thrusters in steady-state conditions. The results will be compared whit measuring data, analyzed, and presented comparatively base on hydrodynamic resistance and speed, but will be discussed the other criteria as well.
{"title":"THERMAL BEHAVIOR OF COATED BIO-POLYMERS","authors":"A. Sabau, M. Barhalescu, R. Zăgan","doi":"10.54684/ijmmt.2022.14.2.226","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.2.226","url":null,"abstract":"When it comes to designing a mini-submarine, the most important questions are what it should look like to achieve the purpose for which it was built and what propulsion force is required to operate it at expected parameters. This paper aims to answer some of these questions using a numerical analysis designed to optimize the body shape using the Ansys CFX software package. The mini-submarine understudy is research one and it is equipped with eight thrusters. The optimization aims to choose an optimal body shape between the frame type which is the simplest, cheapest, easiest to execute and offers easy access to all components, and the closed hull type which is more compact has lower hydrodynamic resistance, but is difficult to execute, is expensive and difficult to access inside for interventions and inspection. The cases of study are incompressible turbulent flow for a complete submerged body, distinguished by the complexity of the form and the conditions under which the computation must be performed. The simulation will be done at several speeds, according to the known power of the thrusters in steady-state conditions. The results will be compared whit measuring data, analyzed, and presented comparatively base on hydrodynamic resistance and speed, but will be discussed the other criteria as well.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46433820","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.2.48
L. Domnișoru
In this paper the hydroelastic study is developed for a 23000T off-shore barge, with a maximum length of 189 m, focusing on a comparative study for two design versions with 40 m and 50 m breadth. The initial off-shore barge with 40 m breadth has been extended to 50 m breadth by adding a supplementary tank section at the centerline, so making it possible to ensure transport capabilities for cargo structures extra wide. The two versions of the off-shore barges are analyzed at full cargo capacity of 23000 t case, for speed values 0 and 7 knots, corresponding to operation on-site at zero speed and maximum transition speed conditions, under head irregular waves with interference components, for a short-term averaged waves’ spectrum. The hull structure of the off-shore barge versions is almost uniform over the whole length, mainly being recorded stress hot-spot at the hull transversal bulkheads connection with the other orthogonal panels and forepeak of the barge, with a maximum of 1.2 hot-spot factor at the prismatic barge hull part. This study is developed by own software DYN-HYD, involving the modules for the hydroelastic long-term approach, applied for the evaluation of the safety limit in the long-term operation conditions.
{"title":"ON THE EVALUATION OF TWO DESIGN VERSIONS OF A 23000T OFF-SHORE BARGE BY THE HYDROELASTIC LONG-TERM APPROACH","authors":"L. Domnișoru","doi":"10.54684/ijmmt.2022.14.2.48","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.2.48","url":null,"abstract":"In this paper the hydroelastic study is developed for a 23000T off-shore barge, with a maximum length of 189 m, focusing on a comparative study for two design versions with 40 m and 50 m breadth. The initial off-shore barge with 40 m breadth has been extended to 50 m breadth by adding a supplementary tank section at the centerline, so making it possible to ensure transport capabilities for cargo structures extra wide. The two versions of the off-shore barges are analyzed at full cargo capacity of 23000 t case, for speed values 0 and 7 knots, corresponding to operation on-site at zero speed and maximum transition speed conditions, under head irregular waves with interference components, for a short-term averaged waves’ spectrum. The hull structure of the off-shore barge versions is almost uniform over the whole length, mainly being recorded stress hot-spot at the hull transversal bulkheads connection with the other orthogonal panels and forepeak of the barge, with a maximum of 1.2 hot-spot factor at the prismatic barge hull part. This study is developed by own software DYN-HYD, involving the modules for the hydroelastic long-term approach, applied for the evaluation of the safety limit in the long-term operation conditions.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45992521","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.3.49
D. Deleanu, M. Turof, C. Dumitrache
An important step in any analysis concerning the ship behaviour in waves is a reasonable accurate assessment of high roll amplitudes. The most commonly used way to estimate the roll oscillations is to solve a nonlinear differential equation with the roll angle as unknown. The nonlinearities refer to different ways of approximating the damping and restoring moments. The lack of exact analytical solutions and the inability of a numerical solution to highlight the influence of various parameters on the ship motion, leads to the need to use approximate analytical methods. Operating the benefits of a modified multiple time scale method recently proposed in the literature, we obtained the governing equations for the transition towards the stationary solutions, the first – order approximations for these solutions and the frequency – amplitude relationship. The accuracy of the analytical results derived in the paper was demonstrated by comparing them with the numerical results (considered to be exact). The agreement between the two was excellent for relatively small forcing amplitude and satisfactory for high level of them on almost the entire range of used values for excitation frequency, including the primary resonance domain.
{"title":"A TRUSTWORTHY COMPUTATION OF THE TRANSITORY AND STATIONARY RESPONSES FOR THE SHIP ROLLING BY A MODIFIED MULTIPLE TIME SCALE METHOD","authors":"D. Deleanu, M. Turof, C. Dumitrache","doi":"10.54684/ijmmt.2022.14.3.49","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.3.49","url":null,"abstract":"An important step in any analysis concerning the ship behaviour in waves is a reasonable accurate assessment of high roll amplitudes. The most commonly used way to estimate the roll oscillations is to solve a nonlinear differential equation with the roll angle as unknown. The nonlinearities refer to different ways of approximating the damping and restoring moments. The lack of exact analytical solutions and the inability of a numerical solution to highlight the influence of various parameters on the ship motion, leads to the need to use approximate analytical methods. Operating the benefits of a modified multiple time scale method recently proposed in the literature, we obtained the governing equations for the transition towards the stationary solutions, the first – order approximations for these solutions and the frequency – amplitude relationship. The accuracy of the analytical results derived in the paper was demonstrated by comparing them with the numerical results (considered to be exact). The agreement between the two was excellent for relatively small forcing amplitude and satisfactory for high level of them on almost the entire range of used values for excitation frequency, including the primary resonance domain.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48002075","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.2.96
J. Kosmol
The heat generated in a bearing may affect its resistance to motion. Therefore, the bearing seat designer should take this into account in the design process. The article presents the results of simulation tests which show how the heat in the bearing affects its resistance to motion. A methodology for determining the resistance to motion and power losses in the bearing has been proposed, which consists of two stages: identification of the temperature distribution in the bearing and identification of thermal deformation and contact loads. The main results of the research are the following statements: that the thermal deformation of the bearing elements is much greater than that due to mechanical loads (centrifugal forces or pre-load) and the contact loads, thus the motion resistance and power losses in the transient state may be much greater than in the state fixed. The conducted experimental studies show a relatively good qualitative agreement with the results of simulation tests, while the quantitative results do not always provide a sufficient agreement. The most important conclusion from the research is as follows: for high-speed assemblies, e.g. spindles of High Speed Cutting machine tools, the failure to take into account the motion resistance due to heat generated in the bearing may lead to a reduction in bearing life.
{"title":"INFLUENCE OF HEAT GENERATED IN A ROLLING BEARING ON ITS MOTION RESISTANCE","authors":"J. Kosmol","doi":"10.54684/ijmmt.2022.14.2.96","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.2.96","url":null,"abstract":"The heat generated in a bearing may affect its resistance to motion. Therefore, the bearing seat designer should take this into account in the design process. The article presents the results of simulation tests which show how the heat in the bearing affects its resistance to motion. A methodology for determining the resistance to motion and power losses in the bearing has been proposed, which consists of two stages: identification of the temperature distribution in the bearing and identification of thermal deformation and contact loads. The main results of the research are the following statements: that the thermal deformation of the bearing elements is much greater than that due to mechanical loads (centrifugal forces or pre-load) and the contact loads, thus the motion resistance and power losses in the transient state may be much greater than in the state fixed. The conducted experimental studies show a relatively good qualitative agreement with the results of simulation tests, while the quantitative results do not always provide a sufficient agreement. The most important conclusion from the research is as follows: for high-speed assemblies, e.g. spindles of High Speed Cutting machine tools, the failure to take into account the motion resistance due to heat generated in the bearing may lead to a reduction in bearing life.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47864179","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.3.164
G. D. Muscă Anghelache
The paperwork includes some considerations regarding the way of establishing the constructive and functional main parameters needed to adapt a crane equipment on a tire excavator. Using a crane equipment on tire excavator is an advantage both for the economy of a service rendering company and for meeting many requirements from various customers. The work equipment on multipurpose excavator is obtained by replacing the work equipment on dragline or grab crane by single hook. Adapting the crane equipment, in case the excavator is provided with dragline equipment, is only the suitable choice of single hook. Specific for such equipment are load lifting – lowering, boom slewing together with excavator platform, boom inclining and travelling function of base machine which, according to load, amplifies the equipment working area. By adapting a crane equipment to tire excavator, a new equipment is got, which, in my opinion, can be part of tire cranes family. Changing the work equipment – hydraulic excavator bucket with crane equipment – shows some advantages like: high maneuverability and mobility, access in narrow spaces, occasional use of crane equipment, equipment cost price is much lower than for a tire crane, only specialized for loads lifting, slewing and travelling.
{"title":"TECHNOLOGICAL EFFICIENCY BY CHANGING THE CRANE EQUIPMENT","authors":"G. D. Muscă Anghelache","doi":"10.54684/ijmmt.2022.14.3.164","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.3.164","url":null,"abstract":"The paperwork includes some considerations regarding the way of establishing the constructive and functional main parameters needed to adapt a crane equipment on a tire excavator. Using a crane equipment on tire excavator is an advantage both for the economy of a service rendering company and for meeting many requirements from various customers. The work equipment on multipurpose excavator is obtained by replacing the work equipment on dragline or grab crane by single hook. Adapting the crane equipment, in case the excavator is provided with dragline equipment, is only the suitable choice of single hook. Specific for such equipment are load lifting – lowering, boom slewing together with excavator platform, boom inclining and travelling function of base machine which, according to load, amplifies the equipment working area. By adapting a crane equipment to tire excavator, a new equipment is got, which, in my opinion, can be part of tire cranes family. Changing the work equipment – hydraulic excavator bucket with crane equipment – shows some advantages like: high maneuverability and mobility, access in narrow spaces, occasional use of crane equipment, equipment cost price is much lower than for a tire crane, only specialized for loads lifting, slewing and travelling.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44283111","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.2.188
M. Płaczek, Maciej Kaźmierczak
The aim of the work was to present the possibility of automatic regulation of the liquid level in the tank with the use of the Arduino platform, strain gauge measurements and pump operation regulation by means of a PID controller. The possibility to program the Arduino and implementing the algorithm of the PID controller was presented. To be able to use the PID controller, the controller was tuned using the II Ziegler-Nichols method and the manual method. To check how the applied controller works in automatic liquid level control and how its settings affect the operation of the system, tests were carried out comparing the operation of various configurations of the PID controller in various operating conditions. The work carried out showed the possibility of developing a low-cost automatic liquid level control system, which can be successfully used in manufacturing processes.
{"title":"\"AN AUTOMATIC LIQUID LEVEL CONTROL SYSTEM WITH THE USE OF THE ARDUINO MICROCONTROLLER AND STRAIN GAUGES - ANALYSIS OF APPLICATION POSSIBILITY IN MANUFACTURING PROCESSES \"","authors":"M. Płaczek, Maciej Kaźmierczak","doi":"10.54684/ijmmt.2022.14.2.188","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.2.188","url":null,"abstract":"The aim of the work was to present the possibility of automatic regulation of the liquid level in the tank with the use of the Arduino platform, strain gauge measurements and pump operation regulation by means of a PID controller. The possibility to program the Arduino and implementing the algorithm of the PID controller was presented. To be able to use the PID controller, the controller was tuned using the II Ziegler-Nichols method and the manual method. To check how the applied controller works in automatic liquid level control and how its settings affect the operation of the system, tests were carried out comparing the operation of various configurations of the PID controller in various operating conditions. The work carried out showed the possibility of developing a low-cost automatic liquid level control system, which can be successfully used in manufacturing processes.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41637770","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.2.234
L. Stan, D. Juganaru
This study presents the sizing calculation and the FEM analysis of the propeller shaft for three different operating modes. The propeller shaft has the role of supporting the engine and transmitting its rotating motion and is the most requested element in the structure of the shaft line. In scenario 1, a "fixed support" type constraint is applied at one end and the maximum torque given by the motor at the other end is applied to lock the propeller. Than to simulate scenario 2, apply the maximum thrust force to the propeller at one end, and the "fixed support" constraint will be inserted at the end of the engine. And the 3 th scenario was the operating of propulsion system in normal mode. Comparing the results from the simulation of the three scenarios, it is observed that the maximum values recorded for displacement, equivalent elastic strain and equivalent stresses were recorded at the engine operation under normal conditions. In conclusion, although the scenarios were a bit exaggerated, the propeller shaft withstood the efforts, falling within the limit of elasticity. This demonstrates that the calculation method of propeller shafts is correct, and safe, as long as their size is not oversized.
{"title":"COMPARATIVE STUDY ON THE DISPLACEMENTS, EQUIVALENT ELASTIC STRAIN AND EQUIVALENT STRESS OF THE PROPELLER SHAFT AT DIFFERENT OPERATING MODES","authors":"L. Stan, D. Juganaru","doi":"10.54684/ijmmt.2022.14.2.234","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.2.234","url":null,"abstract":"This study presents the sizing calculation and the FEM analysis of the propeller shaft for three different operating modes. The propeller shaft has the role of supporting the engine and transmitting its rotating motion and is the most requested element in the structure of the shaft line. In scenario 1, a \"fixed support\" type constraint is applied at one end and the maximum torque given by the motor at the other end is applied to lock the propeller. Than to simulate scenario 2, apply the maximum thrust force to the propeller at one end, and the \"fixed support\" constraint will be inserted at the end of the engine. And the 3 th scenario was the operating of propulsion system in normal mode. Comparing the results from the simulation of the three scenarios, it is observed that the maximum values recorded for displacement, equivalent elastic strain and equivalent stresses were recorded at the engine operation under normal conditions. In conclusion, although the scenarios were a bit exaggerated, the propeller shaft withstood the efforts, falling within the limit of elasticity. This demonstrates that the calculation method of propeller shafts is correct, and safe, as long as their size is not oversized.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41877075","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.2.90
T. Kik, J. Górka, M. Przybyla
The article presents investigation on stress and strain state in weld joints of boiler membrane wall by performing numerical analysis (finite element method). The main purpose was to create 3D model which will correspond to real membrane wall geometry under consideration, which will allow to perform strength simulation of numerical models considering variable parameters depending on the temperature. The model was fragment of boiler membrane wall made of X10CrMoVNb9-1 pipe and 10CrMo9-10 flat bar welded with submerged arc method. The research included the assumption of boundary conditions such as temperature cycles, welding method, type of mounting and base materials or heat treatment cycle. Three simulations have been performed depended on base material and temperature cycle adopted. As a result of the simulations, the distribution of temperature, displacement and stress in analyzed cases were obtained. The numerical simulation in dissimilar welded joints X10CrMoVNb9-1 pipe and 10CrMo9-10 flat bar heat treated afterwards, showed that the differences in linear expansion coefficients favour the development of cracks in the welds caused by increased level of stress. In parallel materials used for boiler membrane walls are the reason for difficulties in determine the proper technology of welding, preheating temperature and post-weld heat treatment parameters. Simulations indicated that the state of stress in weld joint is dependent on type of parameters adopted, and in closest scenario to real conditions, simulation showed that post-weld heat treatment had no positive effect on the stress state caused by discrepancy in linear expansion coefficients of both base materials.
{"title":"NUMERICAL ANALYSIS OF STRESS AND STRAIN STATE IN MEMBRANE WALLS WELD JOINTS PERFORMED BY SUBMERGED ARC WELDING","authors":"T. Kik, J. Górka, M. Przybyla","doi":"10.54684/ijmmt.2022.14.2.90","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.2.90","url":null,"abstract":"The article presents investigation on stress and strain state in weld joints of boiler membrane wall by performing numerical analysis (finite element method). The main purpose was to create 3D model which will correspond to real membrane wall geometry under consideration, which will allow to perform strength simulation of numerical models considering variable parameters depending on the temperature. The model was fragment of boiler membrane wall made of X10CrMoVNb9-1 pipe and 10CrMo9-10 flat bar welded with submerged arc method. The research included the assumption of boundary conditions such as temperature cycles, welding method, type of mounting and base materials or heat treatment cycle. Three simulations have been performed depended on base material and temperature cycle adopted. As a result of the simulations, the distribution of temperature, displacement and stress in analyzed cases were obtained. The numerical simulation in dissimilar welded joints X10CrMoVNb9-1 pipe and 10CrMo9-10 flat bar heat treated afterwards, showed that the differences in linear expansion coefficients favour the development of cracks in the welds caused by increased level of stress. In parallel materials used for boiler membrane walls are the reason for difficulties in determine the proper technology of welding, preheating temperature and post-weld heat treatment parameters. Simulations indicated that the state of stress in weld joint is dependent on type of parameters adopted, and in closest scenario to real conditions, simulation showed that post-weld heat treatment had no positive effect on the stress state caused by discrepancy in linear expansion coefficients of both base materials.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47479086","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.3.44
E. M. Ciortea
This paper is based on the benefits of 5G digitization and the impact it can have on the entire production system. With regard to the complete production system, reference is made to IoT platforms used at the level of industrial enterprises. Companies can focus on deploying IoT devices that transmit real-time information to other devices. We are in the midst of an industrial revolution, and as companies continue to turn their attention to data, the speed and magnitude of this data combined with real-time information is the difference between success and failure. In order to highlight the proposed problems, an empirical approach will be tried using Petri nets, which are relatively easy to use for real-time systems with concrete results, which can be analysed and interpreted for short-term decision making.
{"title":"EMPIRICAL ANALYSIS OF MANUFACTURING USING 5G ARCHITECTURE","authors":"E. M. Ciortea","doi":"10.54684/ijmmt.2022.14.3.44","DOIUrl":"https://doi.org/10.54684/ijmmt.2022.14.3.44","url":null,"abstract":"This paper is based on the benefits of 5G digitization and the impact it can have on the entire production system. With regard to the complete production system, reference is made to IoT platforms used at the level of industrial enterprises. Companies can focus on deploying IoT devices that transmit real-time information to other devices. We are in the midst of an industrial revolution, and as companies continue to turn their attention to data, the speed and magnitude of this data combined with real-time information is the difference between success and failure. In order to highlight the proposed problems, an empirical approach will be tried using Petri nets, which are relatively easy to use for real-time systems with concrete results, which can be analysed and interpreted for short-term decision making.","PeriodicalId":38009,"journal":{"name":"International Journal of Modern Manufacturing Technologies","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43760436","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 : 2022-12-20DOI: 10.54684/ijmmt.2022.14.3.191
F. Panaitescu, M. Panaitescu, D. Juganaru
Within the HORESEC project, a combined wind-photovoltaic-motogenerator renewable energy system was developed at the Nautical Base of the Maritime University of Constanta (CMU). The system was entirely designed and built at CMU for the purpose of combined testing of on-grid and off-grid operation efficiency. In this paper the following aspects are presented: 1) the need to create a research centre on monitoring and use of solar and wind resources, through the project Holistic impact of renewable energy sources on the environment and climate-HORESEC in the context of supporting smart specialization in energy; 2) the purpose of the work is presentation of the structure of the system designed and built at CMU in order to test its efficiency, as well as the acquisition of data displayed on a portal for all parameters monitored by the system, at intervals of 5 minutes, or daily, or weekly, monthly or annually. The research consisted in: 1) the configuration of the system to be made for the off grid variant, which opted for a Li-Ion battery bank [2], with a nominal voltage of 55.5 VDC and working between 61.5 V and 45 V, with nominal storage capacity of 6.74 kWh and usable of 5.5 kWh; 2) programming of the measurement and data transmission systems on the web, as well as of the mobile measurement system with the possibility of data transmission to the PC with the sampling rate of minimum 1 month / sec and measurement time of maximum 30 days (Janitza system, SMA Energy meter, Fluke ammeter-voltmeter group + PC + adapter ). The obtained results consist in displaying on a portal all the parameters monitored by the created system, on intervals lasting 5 minutes, or daily, or weekly, monthly or annually (data reports), as well as the existing events in time. The created system has the advantage of increasing energy efficiency by using unconventional methods of storage and consumption management.
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