Pub Date : 2021-10-01DOI: 10.1109/icmeas54189.2021.00023
Yun Luan, Junhang Luo, Beibei Wu, F. He, Jian-hua Wang
For a simple water cooling system, which consists of a U-shaped round pipe and a reservoir, how to discharge the vapor generated in the heated pipe during the cooling process is an interesting topic, especially when pumps or other driving units are hard to install and maintain in the device. In this paper, a thermal-driving method is proposed. By adding different heat fluxes on different parts of the U-shaped pipe, the fluid density difference between those parts can drive a natural circulation of fluid in the loop, and then the vapor bubbles can be discharged with the flow. Numerical simulations are carried out to study the transient performances of the thermal-driving water pipe cooling system under different heat flux distributions. The aim is to obtain the mechanism and evolution law of fluid movement, phase change and heat dissipation. The numerical results indicate that, when the heat flux is uniformly added on the whole pipe, slugs appear in the vertical pipe and where local heat transfer deterioration occurs. When the heat fluxes are different on the left and right vertical parts of the pipe, an overall circulating flow generates. In this process, small vapor bubbles can be discharged, which avoids the formation of the vapor slugs, and the system works stably at boiling point thereby. In addition, with an increase in the heat flux difference between the two vertical parts of the pipe, the initial time of the overall circulating flow shortens.
{"title":"Transient numerical investigation of a thermal-driving water pipe cooling system","authors":"Yun Luan, Junhang Luo, Beibei Wu, F. He, Jian-hua Wang","doi":"10.1109/icmeas54189.2021.00023","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00023","url":null,"abstract":"For a simple water cooling system, which consists of a U-shaped round pipe and a reservoir, how to discharge the vapor generated in the heated pipe during the cooling process is an interesting topic, especially when pumps or other driving units are hard to install and maintain in the device. In this paper, a thermal-driving method is proposed. By adding different heat fluxes on different parts of the U-shaped pipe, the fluid density difference between those parts can drive a natural circulation of fluid in the loop, and then the vapor bubbles can be discharged with the flow. Numerical simulations are carried out to study the transient performances of the thermal-driving water pipe cooling system under different heat flux distributions. The aim is to obtain the mechanism and evolution law of fluid movement, phase change and heat dissipation. The numerical results indicate that, when the heat flux is uniformly added on the whole pipe, slugs appear in the vertical pipe and where local heat transfer deterioration occurs. When the heat fluxes are different on the left and right vertical parts of the pipe, an overall circulating flow generates. In this process, small vapor bubbles can be discharged, which avoids the formation of the vapor slugs, and the system works stably at boiling point thereby. In addition, with an increase in the heat flux difference between the two vertical parts of the pipe, the initial time of the overall circulating flow shortens.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114903760","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00022
F. Meng, DashunZhang, Jing Wang, Liqin Miao, Xueguang Li, Huizhong Hu
This electronic With the rapid development of global knowledge economy and science & technology, virtual manufacturing technology based on virtual reality and simulation technology came into being. The Virtual Machine Tool (VMT), as the execution unit of virtual manufacturing, is a key technology and prerequisite for virtual manufacturing. This article uses UG software to complete the construction of the geometric model of the three-axis CNC machine tool, and the NC machining program of the machined parts is generated based on UG CAM. By acquiring the actual machine structure, import the geometric model established in UG into VERICUT to create the kinematic model of the virtual machine tool. Taking a certain type of flange as the simulation processing object, and use the NC program generated in UG CAM to processing simulation in VERICUT. This verifies the correctness of the established model and NC program. Through optimizing the NC machining parameters, the collision or interference between machine tools and parts in actual processing can be avoided.
{"title":"Simulation Verification of Parts Processing Based on Virtual Numerical Control Machine","authors":"F. Meng, DashunZhang, Jing Wang, Liqin Miao, Xueguang Li, Huizhong Hu","doi":"10.1109/icmeas54189.2021.00022","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00022","url":null,"abstract":"This electronic With the rapid development of global knowledge economy and science & technology, virtual manufacturing technology based on virtual reality and simulation technology came into being. The Virtual Machine Tool (VMT), as the execution unit of virtual manufacturing, is a key technology and prerequisite for virtual manufacturing. This article uses UG software to complete the construction of the geometric model of the three-axis CNC machine tool, and the NC machining program of the machined parts is generated based on UG CAM. By acquiring the actual machine structure, import the geometric model established in UG into VERICUT to create the kinematic model of the virtual machine tool. Taking a certain type of flange as the simulation processing object, and use the NC program generated in UG CAM to processing simulation in VERICUT. This verifies the correctness of the established model and NC program. Through optimizing the NC machining parameters, the collision or interference between machine tools and parts in actual processing can be avoided.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117049773","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00032
Liu Jingwei, Lin Jiaming
Dual engine failure is the most serious risk that a civil airplane may encounter in airline operations and flight tests. CCAR-25.671(d) clearly stipulates that the airplane must be designed so that it is controllable if all engines fail. In this paper, by building the aircraft 6-DOF motion simulation model and the control surface malfunction simulation model, the theoretical calculation and analysis of the airplane control characteristics after dual engine failure are given. Moreover, the safety of civil airplane under dual engine failure condition is evaluated. Finally, reasonable suggestions are given based on engineering experience, which can provide a reference for dual engine failure flight test of civil aircraft.
{"title":"Research on Handling Risk Assessment for Civil Airplane under Dual Engine Failure","authors":"Liu Jingwei, Lin Jiaming","doi":"10.1109/icmeas54189.2021.00032","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00032","url":null,"abstract":"Dual engine failure is the most serious risk that a civil airplane may encounter in airline operations and flight tests. CCAR-25.671(d) clearly stipulates that the airplane must be designed so that it is controllable if all engines fail. In this paper, by building the aircraft 6-DOF motion simulation model and the control surface malfunction simulation model, the theoretical calculation and analysis of the airplane control characteristics after dual engine failure are given. Moreover, the safety of civil airplane under dual engine failure condition is evaluated. Finally, reasonable suggestions are given based on engineering experience, which can provide a reference for dual engine failure flight test of civil aircraft.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":" 36","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132012224","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00024
W. Yang, S. Gu, Ji-peng Zhao, T. Ma, Bin Yu, Yu Jiang
In order to investigate the deformation characteristics of titanium diaphragm for a spacecraft propellant tank during its reversal process, Based on FE software MSC. Marc, a FE model of the reversal process of the titanium diaphragm is established. In this model, the nonlinear thickness distributions of the diaphragm are coupled by a MSC. Marc subprogram. With the aid of the model, the paper analyses the characteristics of different field variables during the whole reversal process, such as pressure drop, equivalent von mises stress, equivalent plastic strain and apex displacement. The results show that the deformation of the diaphragm is relatively stable during the reversal process. Simulated values of pressure differential show good agreement with measured ones.
{"title":"Modelling the Deformation Characteristics of Titanium Diaphragm for a Spacecraft Propellant Tank","authors":"W. Yang, S. Gu, Ji-peng Zhao, T. Ma, Bin Yu, Yu Jiang","doi":"10.1109/icmeas54189.2021.00024","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00024","url":null,"abstract":"In order to investigate the deformation characteristics of titanium diaphragm for a spacecraft propellant tank during its reversal process, Based on FE software MSC. Marc, a FE model of the reversal process of the titanium diaphragm is established. In this model, the nonlinear thickness distributions of the diaphragm are coupled by a MSC. Marc subprogram. With the aid of the model, the paper analyses the characteristics of different field variables during the whole reversal process, such as pressure drop, equivalent von mises stress, equivalent plastic strain and apex displacement. The results show that the deformation of the diaphragm is relatively stable during the reversal process. Simulated values of pressure differential show good agreement with measured ones.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131096803","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00014
Qian Pengjun, Lu Zhengliang
This article addresses the attitude stabilization control problem of the moving mass rocket-propelled CubeSat in orbit maneuver. Considering the propellant combustion and the motion of two moving masses, the attitude dynamic model of the satellite is established by Newton multi-rigid system with variable mass dynamic. Subsequently, based on the simplified control model of pitch and yaw channel, backstepping technique is utilized to design the controller and the dynamic surface control is employed to avoid the computer explosion. An adaptive law is proposed to estimate the upper boundaries of uncertainties. Lyapunov function is used to prove the stability of the closed-loop system. Finally, numerical simulation results indicate the effectiveness of the designed control method.
{"title":"Adaptive Backstepping Terminal Sliding Mode Attitude stabilization control for Moving Mass Rocket-propelled CubeSat","authors":"Qian Pengjun, Lu Zhengliang","doi":"10.1109/icmeas54189.2021.00014","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00014","url":null,"abstract":"This article addresses the attitude stabilization control problem of the moving mass rocket-propelled CubeSat in orbit maneuver. Considering the propellant combustion and the motion of two moving masses, the attitude dynamic model of the satellite is established by Newton multi-rigid system with variable mass dynamic. Subsequently, based on the simplified control model of pitch and yaw channel, backstepping technique is utilized to design the controller and the dynamic surface control is employed to avoid the computer explosion. An adaptive law is proposed to estimate the upper boundaries of uncertainties. Lyapunov function is used to prove the stability of the closed-loop system. Finally, numerical simulation results indicate the effectiveness of the designed control method.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114230726","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00028
Liyong Huang, Shaolin Chen, Zhihui Wang
Turbocharged is very important for engine emission reduction of road vehicles. The performance of turbocharged engine was strongly affected by heat transfer of turbocharger. The aim of this studyis to evaluate the effect of turbocharger cooling and lubricating state on the performance of turbocharged engine. This work was developed a detailed model that evaluating both engine performance and turbocharger cooling and lubricating state. The simulated model was validated by the experimental data on the turbocharger and engine test bench. Finally, this model has been used to evaluate the engine performance under three different heat transfer conditions. The results showing the mass flow rate of turbocharger cooling water is an important factor for turbocharged engine performance, especially for the temperature of engine exhaust emission.
{"title":"Impact of turbocharger cooling and lubricating state on the Performance of Turbocharged Engine","authors":"Liyong Huang, Shaolin Chen, Zhihui Wang","doi":"10.1109/icmeas54189.2021.00028","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00028","url":null,"abstract":"Turbocharged is very important for engine emission reduction of road vehicles. The performance of turbocharged engine was strongly affected by heat transfer of turbocharger. The aim of this studyis to evaluate the effect of turbocharger cooling and lubricating state on the performance of turbocharged engine. This work was developed a detailed model that evaluating both engine performance and turbocharger cooling and lubricating state. The simulated model was validated by the experimental data on the turbocharger and engine test bench. Finally, this model has been used to evaluate the engine performance under three different heat transfer conditions. The results showing the mass flow rate of turbocharger cooling water is an important factor for turbocharged engine performance, especially for the temperature of engine exhaust emission.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130431224","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00043
Norfarahana Adibah Raffie, N. H. Amer, Syed Mohd Fairuz Syed Mohd Dardin, K. Hudha, S. Ishak
Hazardous environments gave a big challenge for the human to accomplish the desired tasks, especially in sampling and collecting materials either for securing the locality or research purposes. Hence, teleoperated robots with robotic arms have been proposed to execute any tasks that appointed. However, most robotic arms on the teleoperated robots only serve specific tasks and have no ability to retract arm with precise and smooth movement, which will compromise its functionality. In this paper, five designs of robotic arms were proposed with different mechanisms for its retractions. Evaluation and selection for the final design was decided based on the decision-making process for all designs. Considering important criterion, evaluation was performed using concept scoring. All concept designs were modelled and analysed in SolidWorks. Load was applied on the end effector of robotic arm to observe Von Mises criteria of designed arms. Both methods indicate that design 5 with linear motor mechanism has the best endurance and thus, chosen as the most suitable design to be mounted on the track vehicle.
{"title":"Preliminary Concept Modelling, Evaluation and Selection of Robotic Arm for Light Lifting Application","authors":"Norfarahana Adibah Raffie, N. H. Amer, Syed Mohd Fairuz Syed Mohd Dardin, K. Hudha, S. Ishak","doi":"10.1109/icmeas54189.2021.00043","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00043","url":null,"abstract":"Hazardous environments gave a big challenge for the human to accomplish the desired tasks, especially in sampling and collecting materials either for securing the locality or research purposes. Hence, teleoperated robots with robotic arms have been proposed to execute any tasks that appointed. However, most robotic arms on the teleoperated robots only serve specific tasks and have no ability to retract arm with precise and smooth movement, which will compromise its functionality. In this paper, five designs of robotic arms were proposed with different mechanisms for its retractions. Evaluation and selection for the final design was decided based on the decision-making process for all designs. Considering important criterion, evaluation was performed using concept scoring. All concept designs were modelled and analysed in SolidWorks. Load was applied on the end effector of robotic arm to observe Von Mises criteria of designed arms. Both methods indicate that design 5 with linear motor mechanism has the best endurance and thus, chosen as the most suitable design to be mounted on the track vehicle.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"49 3-4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123456739","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00029
Jihong Yan, Xiaofeng Wang, Ahad Ali
Tool wear monitoring is the key part of intelligent maintenance and has been attracting considerable interest. However, traditional data-driven methods assume that the collected data following identical distribution and the training data is sufficient, which is impractical in practice. This paper proposed a novel framework to realize tool wear monitoring across scenarios based on deep transfer learning. The collected multi-source heterogeneous signal is fused based on the feature self-extraction and selection capabilities of deep learning. Particularly, the feature extraction capability of convolutional neural networks (CNN) for structured data is improved by integrating traditional feature extraction methods. Furthermore, the transfer learning technique is introduced to migrate the pre-trained model from the source domain to the target domain, and thus achieving the tool wear monitoring across scenarios. The proposed framework was applied to the continuous cutting process of tools and the excellent experimental results demonstrated the effectiveness of the deep transfer learning network for tool wear monitoring with a small number of labeled data, which demonstrates the practicality of the proposed framework.
{"title":"Deep Transfer Learning Based Multi-source Heterogeneous data Fusion with Application to Cross-scenario Tool Wear monitoring","authors":"Jihong Yan, Xiaofeng Wang, Ahad Ali","doi":"10.1109/icmeas54189.2021.00029","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00029","url":null,"abstract":"Tool wear monitoring is the key part of intelligent maintenance and has been attracting considerable interest. However, traditional data-driven methods assume that the collected data following identical distribution and the training data is sufficient, which is impractical in practice. This paper proposed a novel framework to realize tool wear monitoring across scenarios based on deep transfer learning. The collected multi-source heterogeneous signal is fused based on the feature self-extraction and selection capabilities of deep learning. Particularly, the feature extraction capability of convolutional neural networks (CNN) for structured data is improved by integrating traditional feature extraction methods. Furthermore, the transfer learning technique is introduced to migrate the pre-trained model from the source domain to the target domain, and thus achieving the tool wear monitoring across scenarios. The proposed framework was applied to the continuous cutting process of tools and the excellent experimental results demonstrated the effectiveness of the deep transfer learning network for tool wear monitoring with a small number of labeled data, which demonstrates the practicality of the proposed framework.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126210858","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00016
R. Du, Xing Zhang, Xiang Zhang, Ling Wang, W. Liao
It has been anticipated that CubeSats would have wide applications in on-orbit servicing (OOS) fields due to their advantages of short research and development cycle and low manufacturing cost, in which the close-range relative navigation is a critical technique that usually requires high accuracy of the relative pose estimation. This paper proposes a vision-based relative navigation sensor for OOS of CubeSats. A set of active fiducial markers with multi-layer structure was designed to ensure an accurate unambiguous matching and measurement. An improved effective perspective-n-point (IEPnP) algorithm is developed to obtain an accurate relative state estimation. An experiment system which simulates the real illumination and motion conditions in space was set up to assess the performances of the proposed sensor. The results show that the sensor can overcome the interference of the ambient light, and can reach an accuracy of range estimation smaller than 2 mm and an accuracy of relative attitude estimation smaller than 0.4 deg at distance of 1 m. Through contrast tests, the accuracy of the proposed IEPnP algorithm is better than the classical perspective-3-point (P3P) algorithm and EPnP algorithm.
{"title":"A vision-based relative navigation sensor for on-orbit servicing of CubeSats","authors":"R. Du, Xing Zhang, Xiang Zhang, Ling Wang, W. Liao","doi":"10.1109/icmeas54189.2021.00016","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00016","url":null,"abstract":"It has been anticipated that CubeSats would have wide applications in on-orbit servicing (OOS) fields due to their advantages of short research and development cycle and low manufacturing cost, in which the close-range relative navigation is a critical technique that usually requires high accuracy of the relative pose estimation. This paper proposes a vision-based relative navigation sensor for OOS of CubeSats. A set of active fiducial markers with multi-layer structure was designed to ensure an accurate unambiguous matching and measurement. An improved effective perspective-n-point (IEPnP) algorithm is developed to obtain an accurate relative state estimation. An experiment system which simulates the real illumination and motion conditions in space was set up to assess the performances of the proposed sensor. The results show that the sensor can overcome the interference of the ambient light, and can reach an accuracy of range estimation smaller than 2 mm and an accuracy of relative attitude estimation smaller than 0.4 deg at distance of 1 m. Through contrast tests, the accuracy of the proposed IEPnP algorithm is better than the classical perspective-3-point (P3P) algorithm and EPnP algorithm.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"156 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132549201","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 : 2021-10-01DOI: 10.1109/icmeas54189.2021.00021
D. Nagy
This paper exemplifies the influence of the purpose of an aircraft on the aerodynamic properties of its airfoil. In particular, the research takes into consideration two types of aircraft, namely cargo aircraft and military high-speed aircraft and compares their airfoil characteristics using their NACA airfoils as well as computational fluid dynamics. The results show that airfoils of aircraft designed for cargo have a heavier focus on maintaining a large lift force whereas speedoriented airplanes focus on minimizing the drag force.
{"title":"Simulations of NACA 65-415 and NACA 64-206 Airfoils using Computational Fluid Dynamics","authors":"D. Nagy","doi":"10.1109/icmeas54189.2021.00021","DOIUrl":"https://doi.org/10.1109/icmeas54189.2021.00021","url":null,"abstract":"This paper exemplifies the influence of the purpose of an aircraft on the aerodynamic properties of its airfoil. In particular, the research takes into consideration two types of aircraft, namely cargo aircraft and military high-speed aircraft and compares their airfoil characteristics using their NACA airfoils as well as computational fluid dynamics. The results show that airfoils of aircraft designed for cargo have a heavier focus on maintaining a large lift force whereas speedoriented airplanes focus on minimizing the drag force.","PeriodicalId":374943,"journal":{"name":"2021 7th International Conference on Mechanical Engineering and Automation Science (ICMEAS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133391560","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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