Pub Date : 2020-12-02DOI: 10.1109/ME49197.2020.9286646
A. Stefek, J. Casar, V. Starý
The article deals with the area of modelling and simulation and it is focused on automatically generated flight routes as a part of complex simulation tool for the air defence mission planning. The routes are based on generic plane model, which consists of a controller part (a pilot) and plane dynamic model and it is defined by the system of differential equations with adjustable parameters, for instance values of velocity, acceleration, pitch and yaw angles or determined way-points. The simulation is done in the Jupyter notebook environment, using the Python programming language, where the complete set of all the possible flight routes is generated and evaluated in accordance with further requirements, e.g. analysis of optimal track for the attack.
{"title":"Flight route generator for simulation-supported wargaming","authors":"A. Stefek, J. Casar, V. Starý","doi":"10.1109/ME49197.2020.9286646","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286646","url":null,"abstract":"The article deals with the area of modelling and simulation and it is focused on automatically generated flight routes as a part of complex simulation tool for the air defence mission planning. The routes are based on generic plane model, which consists of a controller part (a pilot) and plane dynamic model and it is defined by the system of differential equations with adjustable parameters, for instance values of velocity, acceleration, pitch and yaw angles or determined way-points. The simulation is done in the Jupyter notebook environment, using the Python programming language, where the complete set of all the possible flight routes is generated and evaluated in accordance with further requirements, e.g. analysis of optimal track for the attack.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132588660","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286641
C. I. Cardona, H. A. Tinoco, Daniel A. Pereira, Jaime Buitrago-Osorio, Luis Perdomo-Hurtado, M. Hurtado-Hernández, J. Lopez-Guzman
In the last few years, Colombian coffee production has decreased by different economic factors related to the increment of costs in manual selective harvest operations. Consequently, an interest has arisen for studying selective harvesting methods based on mechanical vibrations in seeking for an alternative technology. In this sense, it is mainly essential to understand the dynamic behavior of the coffee fruits at different ripening stages. In this study, an experiment was proposed to observe the vibration shapes of coffee fruits (Coffea arabica var. Castillo) in defined frequency intervals. The ripening stages were categorized by a strategy based on color measurements in the CIELab space. Four ripening stages were determined from color data taken of 84 fruits, which allowed the development of the dynamic experiments over classified fruits. The dynamic excitation was applied to the coffee fruits between 0–1000 Hz in which ripe fruits evidenced higher vibration amplitudes in specific frequency intervals. These motions cannot be visualized from a normal video-camera (60 Fps). Therefore, a high-speed camera (Chronos 1.4) was used to record these during harmonic excitation. Eulerian video magnification technique was applied to the video-based measurements to visualize the amplified vibration shapes. The magnified motions were contrasted with vibrometry measurements and a piezo sensor attached to the fruit pedicel. Results show that the ripe fruit can vibrate with higher amplitudes in comparison with the other ripening stages, this information could be used to harvest selectively only ripe fruits.
在过去几年中，由于人工选择性采收作业成本的增加，不同的经济因素导致哥伦比亚咖啡产量下降。因此，人们对基于机械振动的选择性收获方法的研究产生了兴趣，以寻求替代技术。从这个意义上说，了解咖啡果实在不同成熟阶段的动态行为是至关重要的。在本研究中，提出了一项实验，观察咖啡果实(Coffea arabica var. Castillo)在规定的频率间隔内的振动形状。根据CIELab空间的颜色测量策略对成熟阶段进行分类。从84种水果的颜色数据中确定了四个成熟阶段，从而可以对分类水果进行动态实验。对0 ~ 1000 Hz范围内的咖啡果实进行动态激励，成熟果实在特定频率区间内表现出较高的振动幅值。这些运动无法从普通摄像机(60 Fps)中可视化。因此，在谐波激励时，使用高速摄像机(Chronos 1.4)记录这些。欧拉视频放大技术应用于基于视频的测量，以显示放大后的振动形状。放大后的运动与振动测量和附着在果蒂上的压电传感器进行了对比。结果表明，与其他成熟期相比，成熟果实的振动幅度更高，这一信息可用于选择性地收获成熟果实。
{"title":"Vibration Shapes Identification Applying Eulerian Video Magnification on Coffee Fruits to Study the Selective Harvesting","authors":"C. I. Cardona, H. A. Tinoco, Daniel A. Pereira, Jaime Buitrago-Osorio, Luis Perdomo-Hurtado, M. Hurtado-Hernández, J. Lopez-Guzman","doi":"10.1109/ME49197.2020.9286641","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286641","url":null,"abstract":"In the last few years, Colombian coffee production has decreased by different economic factors related to the increment of costs in manual selective harvest operations. Consequently, an interest has arisen for studying selective harvesting methods based on mechanical vibrations in seeking for an alternative technology. In this sense, it is mainly essential to understand the dynamic behavior of the coffee fruits at different ripening stages. In this study, an experiment was proposed to observe the vibration shapes of coffee fruits (Coffea arabica var. Castillo) in defined frequency intervals. The ripening stages were categorized by a strategy based on color measurements in the CIELab space. Four ripening stages were determined from color data taken of 84 fruits, which allowed the development of the dynamic experiments over classified fruits. The dynamic excitation was applied to the coffee fruits between 0–1000 Hz in which ripe fruits evidenced higher vibration amplitudes in specific frequency intervals. These motions cannot be visualized from a normal video-camera (60 Fps). Therefore, a high-speed camera (Chronos 1.4) was used to record these during harmonic excitation. Eulerian video magnification technique was applied to the video-based measurements to visualize the amplified vibration shapes. The magnified motions were contrasted with vibrometry measurements and a piezo sensor attached to the fruit pedicel. Results show that the ripe fruit can vibrate with higher amplitudes in comparison with the other ripening stages, this information could be used to harvest selectively only ripe fruits.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114080489","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286449
L. Veg, Martin Skalicky, R. Pechánek
This paper is dealing with the exact measurement and calculation of the equivalent thermal conduction coefficient between the winding and the slot. The main issue is how to describe and solve the thermal conduction coefficient on the handmade wired small machine with a low slot filling factor. There is a precise model of the machine created and valuated by the real measurement.
{"title":"Tuning of the Thermal Model of Synchronous Machine with PM by Real Measurement","authors":"L. Veg, Martin Skalicky, R. Pechánek","doi":"10.1109/ME49197.2020.9286449","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286449","url":null,"abstract":"This paper is dealing with the exact measurement and calculation of the equivalent thermal conduction coefficient between the winding and the slot. The main issue is how to describe and solve the thermal conduction coefficient on the handmade wired small machine with a low slot filling factor. There is a precise model of the machine created and valuated by the real measurement.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131577919","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286604
L. Veg, R. Pechánek
The main aim of this paper is to prove the importance of precision of the manufacturing process during designing and producing the electrical machine. There is made a comparison of several models and shown the dependency on the accuracy of the dimension of the stator core and the contact region between the stator and motor housing. This paper is also focused on the modification and improvement of the passive cooling system of the high-speed electrical machines body. The contribution of the paper is the valuation of the inaccuracy of the prediction thermal calculation in comparison with a real electrical machine.
{"title":"Influence of Production Tolerances and Production Technologies on the Temperature Model of a High-Speed Synchronous Machine with Permanent Magnets","authors":"L. Veg, R. Pechánek","doi":"10.1109/ME49197.2020.9286604","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286604","url":null,"abstract":"The main aim of this paper is to prove the importance of precision of the manufacturing process during designing and producing the electrical machine. There is made a comparison of several models and shown the dependency on the accuracy of the dimension of the stator core and the contact region between the stator and motor housing. This paper is also focused on the modification and improvement of the passive cooling system of the high-speed electrical machines body. The contribution of the paper is the valuation of the inaccuracy of the prediction thermal calculation in comparison with a real electrical machine.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133635010","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286650
J. Dragoun, J. Talla, V. Blahnik
This paper shows experimental results for three different methods used for a voltage synchronization to the three-phase grid. Tested methods are: traditional phase locked loop using Clarke and Park transformation (SRF-PLL), dual second-order generalized integrator phase locked loop (DSOGI-PLL) and sliding discrete Fourier transformation (sDFT). Experiments are carried out using controlled laboratory three phase power supply and show robustness of the methods to the noise, voltage distortion and sensitivity to grid frequency fluctuations. Finally, strong and weak aspects of the methods are discussed.
本文给出了三相电网电压同步的三种不同方法的实验结果。测试方法有:采用Clarke and Park变换的传统锁相环(SRF-PLL)、双二阶广义积分锁相环(DSOGI-PLL)和滑动离散傅立叶变换(sDFT)。实验结果表明，该方法对噪声、电压畸变和电网频率波动具有较好的鲁棒性。最后，讨论了该方法的优缺点。
{"title":"Experimental evaluation of three-phase voltage synchronization algorithms","authors":"J. Dragoun, J. Talla, V. Blahnik","doi":"10.1109/ME49197.2020.9286650","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286650","url":null,"abstract":"This paper shows experimental results for three different methods used for a voltage synchronization to the three-phase grid. Tested methods are: traditional phase locked loop using Clarke and Park transformation (SRF-PLL), dual second-order generalized integrator phase locked loop (DSOGI-PLL) and sliding discrete Fourier transformation (sDFT). Experiments are carried out using controlled laboratory three phase power supply and show robustness of the methods to the noise, voltage distortion and sensitivity to grid frequency fluctuations. Finally, strong and weak aspects of the methods are discussed.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116422064","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286689
Z. Hadaš, O. Rubeš, P. Tofel, Z. Machu, D. Říha, O. Ševeček, J. Kaštyl, D. Sobola, K. Částková
This paper deals with a review of potential technical applications of piezoelectric polymer systems for Industry 4.0 applications. Polyvinylidene difluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. Copolymers of PVDF with beta phase could be used in piezoelectric and triboelectric applications which are presented in this paper. PVDF is a candidate for harvesters and sensors that cannot be realized with piezoceramics or single crystals. Both technical applications for sensing and energy harvesting are presented in this paper. These technologies could be useful in mechanical engineering applications like a strain sensor, strain energy harvesting, vibration energy harvester, load sensing and triboelectric sensors/generators. The opportunity for future usage in Industry 4.0 devices is outlined and experimental results of individual systems are presented.
{"title":"Piezoelectric PVDF Elements and Systems for Mechanical Engineering Applications","authors":"Z. Hadaš, O. Rubeš, P. Tofel, Z. Machu, D. Říha, O. Ševeček, J. Kaštyl, D. Sobola, K. Částková","doi":"10.1109/ME49197.2020.9286689","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286689","url":null,"abstract":"This paper deals with a review of potential technical applications of piezoelectric polymer systems for Industry 4.0 applications. Polyvinylidene difluoride (PVDF) is a highly non-reactive thermoplastic fluoropolymer produced by the polymerization of vinylidene difluoride. Copolymers of PVDF with beta phase could be used in piezoelectric and triboelectric applications which are presented in this paper. PVDF is a candidate for harvesters and sensors that cannot be realized with piezoceramics or single crystals. Both technical applications for sensing and energy harvesting are presented in this paper. These technologies could be useful in mechanical engineering applications like a strain sensor, strain energy harvesting, vibration energy harvester, load sensing and triboelectric sensors/generators. The opportunity for future usage in Industry 4.0 devices is outlined and experimental results of individual systems are presented.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121765616","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286659
S. German – Galkin, D. Tarnapowicz
The main reason for using asynchronous cage generators in ship’s systems is their reliability, simplicity of connection to the grid network and the possibility to implement the system at different generator rotation speeds. In addition, cage generators running on a DC network can easily distribute and sum up the power of generators running in parallel.In this article a test was carried out on a cage induction generator with an active rectifier and a load. The machine is controlled in a closed system with field-oriented control. The mathematical description of the system has been implemented. A model of this system was designed in the Matlab-Simulink package. The simulation results confirmed the functionality of the system and its good dynamic quality.
{"title":"Tests of the Ship’s Cage Induction Generator with the DC Electrical Network","authors":"S. German – Galkin, D. Tarnapowicz","doi":"10.1109/ME49197.2020.9286659","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286659","url":null,"abstract":"The main reason for using asynchronous cage generators in ship’s systems is their reliability, simplicity of connection to the grid network and the possibility to implement the system at different generator rotation speeds. In addition, cage generators running on a DC network can easily distribute and sum up the power of generators running in parallel.In this article a test was carried out on a cage induction generator with an active rectifier and a load. The machine is controlled in a closed system with field-oriented control. The mathematical description of the system has been implemented. A model of this system was designed in the Matlab-Simulink package. The simulation results confirmed the functionality of the system and its good dynamic quality.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122119401","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 : 2020-12-02DOI: 10.1109/ME49197.2020.9286450
Samuel Mifsud, J. Azzopardi, M. Farrugia
Research on Liquefied Petroleum Gas (LPG) use for automotive application is stemmed from the lower cost of the fuel and also from its lower emission potential. This paper details the experimental implementation of LPG fuel onto a Peugeot four cylinder common rail diesel engine. This diesel engine was already electronically controlled with an in-house Engine Control Unit (ECU) already reported in earlier IEEE papers. The electronic and software implementation performed to achieve Dual Fuel operation is detailed, i.e. LPG addition in gaseous state in the inlet manifold in conjunction with Diesel Injection directly into the cylinder. The Diesel Injection is used as the ignition source and thus is required throughout the engine operation, i.e. from idle to full load. LPG addition was utilized from 20% load upwards. The experimental setup used the Diesel ECU already reported and made use of additional electronic circuitry and LabVIEW to control the low impedance LPG injectors. The additional electronic circuitry and LabVIEW control are therefore the main contribution presented in this paper.
{"title":"Liquefied Petroleum Gas (LPG) and Diesel, Dual Fuel Implementation on a Common Rail Diesel Engine","authors":"Samuel Mifsud, J. Azzopardi, M. Farrugia","doi":"10.1109/ME49197.2020.9286450","DOIUrl":"https://doi.org/10.1109/ME49197.2020.9286450","url":null,"abstract":"Research on Liquefied Petroleum Gas (LPG) use for automotive application is stemmed from the lower cost of the fuel and also from its lower emission potential. This paper details the experimental implementation of LPG fuel onto a Peugeot four cylinder common rail diesel engine. This diesel engine was already electronically controlled with an in-house Engine Control Unit (ECU) already reported in earlier IEEE papers. The electronic and software implementation performed to achieve Dual Fuel operation is detailed, i.e. LPG addition in gaseous state in the inlet manifold in conjunction with Diesel Injection directly into the cylinder. The Diesel Injection is used as the ignition source and thus is required throughout the engine operation, i.e. from idle to full load. LPG addition was utilized from 20% load upwards. The experimental setup used the Diesel ECU already reported and made use of additional electronic circuitry and LabVIEW to control the low impedance LPG injectors. The additional electronic circuitry and LabVIEW control are therefore the main contribution presented in this paper.","PeriodicalId":166043,"journal":{"name":"2020 19th International Conference on Mechatronics - Mechatronika (ME)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124202478","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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