Pub Date : 2015-12-01DOI: 10.1109/MEACS.2015.7414894
Y. Isaev, V. A. Kolchanova, S. S. Tarasenko, O. Tikhomirova
The models of the synchronous generator to calculate the steady-state and transient regimes including the transients of stator windings of generator without damper windings have been presented. The ability to use different mathematical approximations of the generator models depending on the spatial distance of the disturbance point has been shown. The examples of the generator models without damper windings at various types of disturbance have been given. To determine the currents and voltages as a functions of time the state-space technique and Park - Gorev transformation have been used. Solutions are obtained by means of program - integrated environment MathCAD Runge-Kutta method. The use of the models is possible for the networks containing synchronous generators and for the design objects containing generators.
{"title":"Mathematical models of synchronous generators for different spatial distances of disturbance point","authors":"Y. Isaev, V. A. Kolchanova, S. S. Tarasenko, O. Tikhomirova","doi":"10.1109/MEACS.2015.7414894","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414894","url":null,"abstract":"The models of the synchronous generator to calculate the steady-state and transient regimes including the transients of stator windings of generator without damper windings have been presented. The ability to use different mathematical approximations of the generator models depending on the spatial distance of the disturbance point has been shown. The examples of the generator models without damper windings at various types of disturbance have been given. To determine the currents and voltages as a functions of time the state-space technique and Park - Gorev transformation have been used. Solutions are obtained by means of program - integrated environment MathCAD Runge-Kutta method. The use of the models is possible for the networks containing synchronous generators and for the design objects containing generators.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115562526","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414973
S.Yu. Syanov
The article reveals theoretical dependencies of surface finish, waviness, microhardness and residual stress on spark eroding conditions. The main factors causing tool electrode wear and influencing the process efficiency are determined. On this basis theoretical dependencies of tool volume wear and process efficiency on process parameters are established. Thanks to these dependencies it is possible to carry out process control over parts surface layer quality characteristics, tool electrode wear and efficiency of spark eroding.
{"title":"Theoretical determination of surface layer quality characteristics of workpieces, tool electrode wear and efficiency of spark eroding","authors":"S.Yu. Syanov","doi":"10.1109/MEACS.2015.7414973","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414973","url":null,"abstract":"The article reveals theoretical dependencies of surface finish, waviness, microhardness and residual stress on spark eroding conditions. The main factors causing tool electrode wear and influencing the process efficiency are determined. On this basis theoretical dependencies of tool volume wear and process efficiency on process parameters are established. Thanks to these dependencies it is possible to carry out process control over parts surface layer quality characteristics, tool electrode wear and efficiency of spark eroding.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116377849","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414919
S. Zhou, Jianmin Liao, N. Li
According to the fact that the pump head of fracturing pump is one of the key component in petroleum fracturing technology equipment and also to guarantee fracturing technology successful implementation, the failure formation and influencing factors of pump head is presented combined with engineering application. Through the finite element analysis, the result that the intersecting line in pump head is the dangerous area to form crack is illustrated. On the basic of the model of pump head with crack established in the dangerous area, the distribution of stress and stress intensity factor in crack tip is obtained and the initial extension regularity of crack tip is conformed. The results show that the yield zone in crack tip concentrate on the surface of section chamber, and the type of semicircular crack in interesting line is I-II-III mixed mode, which the III crack is the primary factor to accelerate crack extension in the interesting line of pump head, under internal pressure. So the results obtained by analyzing pump head with crack provide theoretical guide to apply in engineering for pump head.
{"title":"Research of characteristic of semicircular crack at intersecting line of pump head of fracturing pump","authors":"S. Zhou, Jianmin Liao, N. Li","doi":"10.1109/MEACS.2015.7414919","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414919","url":null,"abstract":"According to the fact that the pump head of fracturing pump is one of the key component in petroleum fracturing technology equipment and also to guarantee fracturing technology successful implementation, the failure formation and influencing factors of pump head is presented combined with engineering application. Through the finite element analysis, the result that the intersecting line in pump head is the dangerous area to form crack is illustrated. On the basic of the model of pump head with crack established in the dangerous area, the distribution of stress and stress intensity factor in crack tip is obtained and the initial extension regularity of crack tip is conformed. The results show that the yield zone in crack tip concentrate on the surface of section chamber, and the type of semicircular crack in interesting line is I-II-III mixed mode, which the III crack is the primary factor to accelerate crack extension in the interesting line of pump head, under internal pressure. So the results obtained by analyzing pump head with crack provide theoretical guide to apply in engineering for pump head.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115578231","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414884
A. Knyazeva, V. N. Demidov
The influence of thin plate prevented the projection of particles under laser heating is analyzed analytically and numerically. It was shown that the conjugate heat exchange between different materials changes not only absorbed heat quality during the heating but affect the kind of the dependence for the temperature on time. Temperature distribution for different time moments is illustrated for two particular cases. Half-transparent plate and half-transparent heated material are discussed. The results are useful to understand the physical phenomena in additive manufacturing.
{"title":"Influence of optical properties of the shield on the laser heating of the treated material","authors":"A. Knyazeva, V. N. Demidov","doi":"10.1109/MEACS.2015.7414884","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414884","url":null,"abstract":"The influence of thin plate prevented the projection of particles under laser heating is analyzed analytically and numerically. It was shown that the conjugate heat exchange between different materials changes not only absorbed heat quality during the heating but affect the kind of the dependence for the temperature on time. Temperature distribution for different time moments is illustrated for two particular cases. Half-transparent plate and half-transparent heated material are discussed. The results are useful to understand the physical phenomena in additive manufacturing.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115300729","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414878
A. S. Bodrov, N. V. Olimpieva, A. Zelepugin, S. Zelepugin
Severe plastic deformation of a titanium specimen during dynamic channel-angular pressing was numerically investigated in 3D statement for dynamic scheme of loading. Computations have been carried out by the finite element method within the framework of the elastic-plastic medium model with allowance for fracture. The effective values of initial velocity and loading pressure are determined for the titanium specimen.
{"title":"Numerical simulation of dynamic channel-angular pressing processes","authors":"A. S. Bodrov, N. V. Olimpieva, A. Zelepugin, S. Zelepugin","doi":"10.1109/MEACS.2015.7414878","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414878","url":null,"abstract":"Severe plastic deformation of a titanium specimen during dynamic channel-angular pressing was numerically investigated in 3D statement for dynamic scheme of loading. Computations have been carried out by the finite element method within the framework of the elastic-plastic medium model with allowance for fracture. The effective values of initial velocity and loading pressure are determined for the titanium specimen.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114729179","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414955
D. Lazurenko, T. Ogneva, V. S. Lozhkin, D. S. Terentiev, A. A. Kashimbetova, V. Mali, A. Anisimov
Metal-intermetallic lamellar (MIL) composites with different intermetallic phase volume fraction (from 47 to 78 %) obtained by reactive spark plasma sintering (SPS) of Ti and Al foils enclosed in Ti shells were investigated. It was shown that increase of titanium aluminide volume fraction in the composites had no influence on their compressive strength at the loading along the layers. Compressive strength at the aforementioned loading conditions was 775 - 790 MPa. However, at the loading of materials in the direction perpendicular to layers the compressive strength value raised from 655 to 760 MPa with increase of titanium volume fraction in the material.
{"title":"Relation between the structure and mechanical properties of Ti-Al-based MIL composites and a thickness of initial metallic components used for their producing","authors":"D. Lazurenko, T. Ogneva, V. S. Lozhkin, D. S. Terentiev, A. A. Kashimbetova, V. Mali, A. Anisimov","doi":"10.1109/MEACS.2015.7414955","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414955","url":null,"abstract":"Metal-intermetallic lamellar (MIL) composites with different intermetallic phase volume fraction (from 47 to 78 %) obtained by reactive spark plasma sintering (SPS) of Ti and Al foils enclosed in Ti shells were investigated. It was shown that increase of titanium aluminide volume fraction in the composites had no influence on their compressive strength at the loading along the layers. Compressive strength at the aforementioned loading conditions was 775 - 790 MPa. However, at the loading of materials in the direction perpendicular to layers the compressive strength value raised from 655 to 760 MPa with increase of titanium volume fraction in the material.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115348127","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414966
V. Al'tukhova, B. Mokritskii, S. Fedonina
Results of engineering the rake face wheel-turning plates topography with the purpose of efficiency increase in chip forming at large cutting depths without tool life decrease are presented.
介绍了在不降低刀具寿命的前提下提高大切削深度切屑成形效率的前刀面车削板形貌的工程研究结果。
{"title":"Chip forming stability increase through adaptation of rake face topography to wheel turning conditions","authors":"V. Al'tukhova, B. Mokritskii, S. Fedonina","doi":"10.1109/MEACS.2015.7414966","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414966","url":null,"abstract":"Results of engineering the rake face wheel-turning plates topography with the purpose of efficiency increase in chip forming at large cutting depths without tool life decrease are presented.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130496582","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414925
J. Tchigirinsky, N. Chigirinskaya, I. V. Firsov
The article discusses the problems of mathematical modeling of the processes forming both the accuracy and quality of machine parts as a result of mechanical treatment. The authors prove the possibility of structural optimization of the technological processes with discrete-event simulation (DES) methods implied.
{"title":"Structural optimization of technological route using simulation modeling","authors":"J. Tchigirinsky, N. Chigirinskaya, I. V. Firsov","doi":"10.1109/MEACS.2015.7414925","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414925","url":null,"abstract":"The article discusses the problems of mathematical modeling of the processes forming both the accuracy and quality of machine parts as a result of mechanical treatment. The authors prove the possibility of structural optimization of the technological processes with discrete-event simulation (DES) methods implied.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131108284","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414854
A. Aristov, L. I. Aristova, I. A. Ekkert
The functional diagram of the gearless electric motor control system of the angular vibration under the potential phase modulation was proposed. The electric motor control algorithms for regulation the electromechanical system natural frequency to maintain the resonant mode of operation and stabilization of vibration parameters were considered. Simulated model was proposed and energetic characteristics of the electric motor according to the generalized performance coefficient were estimated.
{"title":"The control system of electric vibrating motor under the potential phase modulation","authors":"A. Aristov, L. I. Aristova, I. A. Ekkert","doi":"10.1109/MEACS.2015.7414854","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414854","url":null,"abstract":"The functional diagram of the gearless electric motor control system of the angular vibration under the potential phase modulation was proposed. The electric motor control algorithms for regulation the electromechanical system natural frequency to maintain the resonant mode of operation and stabilization of vibration parameters were considered. Simulated model was proposed and energetic characteristics of the electric motor according to the generalized performance coefficient were estimated.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129346295","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 : 2015-12-01DOI: 10.1109/MEACS.2015.7414875
L. Kazarinov, T. Barbasova
The work suggests an oblong ellipsoid method for implementing tasks to choose effective values of controlled parameters, analyze risks of making ineffective solutions and risks of omissions of effective solutions in process control. This method is considered as the basis for making an expert system to support solutions on process efficiency control.
{"title":"Oblong ellipsoid method in process efficiency control","authors":"L. Kazarinov, T. Barbasova","doi":"10.1109/MEACS.2015.7414875","DOIUrl":"https://doi.org/10.1109/MEACS.2015.7414875","url":null,"abstract":"The work suggests an oblong ellipsoid method for implementing tasks to choose effective values of controlled parameters, analyze risks of making ineffective solutions and risks of omissions of effective solutions in process control. This method is considered as the basis for making an expert system to support solutions on process efficiency control.","PeriodicalId":423038,"journal":{"name":"2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127955501","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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