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2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)最新文献

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Envelope Protection Reconfiguration for Iced Aircraft 结冰飞机的包络保护重新配置
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522446
Sizhuang Zheng, Lixin Wang, Ting Yue, Hailiang Liu
{"title":"Envelope Protection Reconfiguration for Iced Aircraft","authors":"Sizhuang Zheng, Lixin Wang, Ting Yue, Hailiang Liu","doi":"10.1109/ICMAE52228.2021.9522446","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522446","url":null,"abstract":"Ice accretion is an important factor that affects the flight safety of civil aircraft, and reconfiguration of the envelop protection control is an important way to improve the iced aircraft flight safety. However, in the present studies, the icing dynamic model utilized the constant coefficient ice factors, which may not accurately reflect the aerodynamic characteristics of iced aircraft in the larger angle-of-attack range. Therefore, in this work, based on the wind tunnel data, a more accurate nonlinear icing aerodynamic model is established which uses the variable coefficient ice factors. Moreover, the reconfiguration method of the envelope protection parameters is given. Three feasible reconfiguration methods of the protection boundary of the angle-of-attack are discussed, and the control is designed respectively. Finally, through the simulation under the icing environment, the differences between the proposed schemes are analyzed, and the results show that the selected scheme can improve the flight safety of the iced aircraft more effectively.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121952216","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}
引用次数: 1
Simulating 5-Axis Milling with a Ball Nose Cutting Tool 模拟球头刀具五轴铣削
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522558
C. Chan, S. Barrans
{"title":"Simulating 5-Axis Milling with a Ball Nose Cutting Tool","authors":"C. Chan, S. Barrans","doi":"10.1109/ICMAE52228.2021.9522558","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522558","url":null,"abstract":"5-axis milling has become widely used in industries where 3-Dimensional cutting is needed. The cutting cost is higher than using 3-axis milling due to the higher complexity of the machine tools. Although the literature describes research investigating the 5-axis cutting process experimentally, there is a lack of research focusing on modeling to the process. Existing models tend to simulate the process in step-wise fashion. In this paper a new model is presented which simulates the continuous process. The impact of this on the feed marks generated within the cusps is demonstrated.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124783778","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}
引用次数: 0
Performance Reliability Analysis of a Liquid Oxygen/Methane Thrust Chamber Based on Firing Tests 基于点火试验的液氧/甲烷推力室性能可靠性分析
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522453
Yaqun Qi, Ping Jin, Ruizhi Li, Bingyang Liu, Guobiao Cai
{"title":"Performance Reliability Analysis of a Liquid Oxygen/Methane Thrust Chamber Based on Firing Tests","authors":"Yaqun Qi, Ping Jin, Ruizhi Li, Bingyang Liu, Guobiao Cai","doi":"10.1109/ICMAE52228.2021.9522453","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522453","url":null,"abstract":"In this paper, hot firing tests of a laboratory-scale liquid oxygen/methane thrust chamber are introduced, and the proposed model for accurately calculating the thrust chamber performance is verified using the experimental data. Furthermore, according to a series of test data, the distribution characteristics of the stochastic system parameters, i.e., temperature and inlet pressure of the propellant are obtained and the thrust chamber performance reliability analysis based on the Monte Carlo simulation is carried out using the performance calculation model. Finally, the influence of random parameters on performance is quantified with the sensitive analysis, which is helpful to the design of the liquid oxygen/methane thrust chamber as well as the control of parameters in firing tests.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115794454","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}
引用次数: 1
Areadynamic Analysis of GMC Sierra Pickup Truck GMC塞拉皮卡的区域动力学分析
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522367
Ahmed Gamil, Thaer M. I. Syam, M. Arab, S. Ghani
{"title":"Areadynamic Analysis of GMC Sierra Pickup Truck","authors":"Ahmed Gamil, Thaer M. I. Syam, M. Arab, S. Ghani","doi":"10.1109/ICMAE52228.2021.9522367","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522367","url":null,"abstract":"Computational Fluid Dynamics (CFD) was used to simulate the flow field over a GMC sierra pickup truck double cab (manufactured year of 2005). This simulation model was compared to a previous simulation and experimental comparison by General Motors employees Yang and Khalighi [1]. Detailed comparison was carried out between both simulations analyses and the experimental results. Based on the findings and the results, I have studied two diffident enhanced models concentrating on the area of interest on the pickup trucks in general \"the bed\". Those new designs were simulated using a CFD tool and the results were validated against the original model simulation and experimental study. All the models were compared in various locations in terms of pressure, velocity, wake flow and drag coefficients. (Abstract)","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841371","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}
引用次数: 0
TAWS Flight Test under Complex Terrain Conditions TAWS在复杂地形条件下的飞行试验
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522415
Yafei Le
{"title":"TAWS Flight Test under Complex Terrain Conditions","authors":"Yafei Le","doi":"10.1109/ICMAE52228.2021.9522415","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522415","url":null,"abstract":"Terrain Awareness and Warning System (TAWS) flight tests associated with terrain are highly risky, which requires careful preparation and may cause unexpected alarms. By clue of the problem that terrain advisory line moved back and forth in the Collision Prediction and Alerting (CPA) flight test of TAWS of a certain type airplane, the whole process of problem analysis and positioning, test procedure developing, rig test and ultimate success of flight test are presented and discussed. As lessens learned, several guiding principles for TAWS test under complex terrain conditions are summarized and proposed, providing the reference for similar flight tests in airworthiness certification.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114254919","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}
引用次数: 0
Impact of Airport Capacity Optimization on the Air Traffic Flow Management 机场容量优化对空中交通流管理的影响
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522473
Abdelhamid Boujarif, Sadeque Hamdan, O. Jouini
{"title":"Impact of Airport Capacity Optimization on the Air Traffic Flow Management","authors":"Abdelhamid Boujarif, Sadeque Hamdan, O. Jouini","doi":"10.1109/ICMAE52228.2021.9522473","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522473","url":null,"abstract":"In the United States, the principal reason behind flight delays is the airport capacity. Many major airports suffer from the incapability of satisfying all the demands. In this paper, we investigate the effects of the dynamic distribution of the airport's capacity on the total delay. Despite the relation between departure and arrival capacities, none of the previous works on air traffic flow management has addressed this problem. The proposed model considers departure and arrival capacities as decision variables. It minimizes the total delay and considers various management policies as ground and air holding, rerouting, and flight canceling. Our results revealed that adopting this approach might reduce the operation cost and minimize delays. Moreover, it precisely allocates the optimum needed capacity for the departing and landing flights.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128992454","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}
引用次数: 2
Transfer Residual Convolutional neural Network for Rotating Machine Fault Diagnosis under Different Working Conditions 基于传递残差卷积神经网络的旋转机械不同工况故障诊断
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522416
Ke Zhao, Hongkai Jiang, Zhenghong Wu
{"title":"Transfer Residual Convolutional neural Network for Rotating Machine Fault Diagnosis under Different Working Conditions","authors":"Ke Zhao, Hongkai Jiang, Zhenghong Wu","doi":"10.1109/ICMAE52228.2021.9522416","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522416","url":null,"abstract":"In recent years, due to the rise of deep learning, fault diagnosis theory has made great progress. However, it should be noted that the current fault diagnosis methods mainly concentrate on the fault identification of the machine under the same working condition, especially for rotating machinery. This means that the success of these fault diagnosis methods has an important premise, that is, the training samples and the test samples share the same data distribution. In order to solve the shortcomings of traditional fault diagnosis methods and the challenges of practical engineering issues, a transfer residual convolutional neural network is proposed in this paper. Compared with other traditional fault diagnosis methods, the proposed method can achieve accurate diagnosis of rotating machinery under different working conditions. Specially, multi-kernel maximum mean discrepancy (MK-MMD) is designed to the residual convolutional neural network (CNN) to extract the similar and common features of source domain and target domain. Then, the labeled source features and the unlabeled target features are input into the classifier to obtain the final diagnosis results. The comparison results demonstrate the effectiveness of the proposed method.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129068483","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}
引用次数: 2
Natural Frequencies of a Simple 3D Printed Lattice Structure 简单3D打印晶格结构的固有频率
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522431
K. Monkova, P. Monka, Ján Vanca, R. Hricová, L. Knapčíková, D. Kozak, P. Beno
{"title":"Natural Frequencies of a Simple 3D Printed Lattice Structure","authors":"K. Monkova, P. Monka, Ján Vanca, R. Hricová, L. Knapčíková, D. Kozak, P. Beno","doi":"10.1109/ICMAE52228.2021.9522431","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522431","url":null,"abstract":"The paper deals with the modal analysis of a sample with a simple lattice structure created by the multiplication of a simple Body Centered Cubic cell in all three directions. Five samples (of the same type) were produced from ABS material by means of 3D printing technology employing the FDM technique. Natural frequencies in the range up to 750 Hz were experimentally investigated under harmonic excitation of a linear viscously damped system with single-degree-of- freedom that allows evaluating the vibration damping properties characterized by the displacement transmissibility. The first five natural modes and frequencies in the range up to 1500 Hz were evaluated by numerical analysis in PTC Creo 7 software. By comparing the first natural frequencies obtained by the numerical and experimental approaches, it was possible to state a relatively high agreement between the values. The acquired knowledge will form the basis for further studies and analyzes of real components intended for their application in practice.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129180991","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}
引用次数: 1
Numerical Analysis of Penetration of Planetary Penetrator 行星穿甲弹侵彻数值分析
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/ICMAE52228.2021.9522511
Haitao Luo, C. Fan
{"title":"Numerical Analysis of Penetration of Planetary Penetrator","authors":"Haitao Luo, C. Fan","doi":"10.1109/ICMAE52228.2021.9522511","DOIUrl":"https://doi.org/10.1109/ICMAE52228.2021.9522511","url":null,"abstract":"As a means of celestial body detection, high speed impact penetration detection has great scientific significance and research value. It can lay a key technical foundation for deep space exploration and space-based weapon system research in the future. These small penetrators are detached from the orbiter, typically hit the planet at a speed of a few hundred meters per second, to be able to send scientific instruments deep underground for scientific exploration. Therefore, it is necessary to analyze the penetration process of the penetrator. The cost of each planetary exploration is relatively high. It is obvious that the study of such scientific problems is mainly through numerical simulation of the process by computer. In this paper, the influence of landing velocity, incident angle and attack angle on the penetration process is analyzed by numerical simulation.","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124595543","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}
引用次数: 0
[ICMAE 2021 Front cover] [ICMAE 2021封面]
2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI: 10.1109/icmae52228.2021.9522469
{"title":"[ICMAE 2021 Front cover]","authors":"","doi":"10.1109/icmae52228.2021.9522469","DOIUrl":"https://doi.org/10.1109/icmae52228.2021.9522469","url":null,"abstract":"","PeriodicalId":161846,"journal":{"name":"2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121650290","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}
引用次数: 0
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