AIAA SCITECH 2022 Forum最新文献

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Experimental Characterization of Efficiency Modes in a Rotating Magnetic Field Thruster 旋转磁场推力器效率模式的实验表征
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-2191
T. Gill, C. Sercel, Joshua M. Woods, B. Jorns
{"title":"Experimental Characterization of Efficiency Modes in a Rotating Magnetic Field Thruster","authors":"T. Gill, C. Sercel, Joshua M. Woods, B. Jorns","doi":"10.2514/6.2022-2191","DOIUrl":"https://doi.org/10.2514/6.2022-2191","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121820799","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: 5
Improved Automated Turbomachinery Hot-to-Cold Transformation With Cold-to-Hot Capabilities For Off-Design Analysis 改进的自动化涡轮机械热到冷转换,具有冷到热的能力,用于非设计分析
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-2436
Justin Holder, Adam Ringheisen, Matthew J. Ha, S. Ghimire, M. Turner
{"title":"Improved Automated Turbomachinery Hot-to-Cold Transformation With Cold-to-Hot Capabilities For Off-Design Analysis","authors":"Justin Holder, Adam Ringheisen, Matthew J. Ha, S. Ghimire, M. Turner","doi":"10.2514/6.2022-2436","DOIUrl":"https://doi.org/10.2514/6.2022-2436","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121808671","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
Transition Flight Control System Design for Fixed-Wing VTOL UAV: A Reinforcement Learning Approach 固定翼垂直起降无人机过渡飞行控制系统设计:一种强化学习方法
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-0879
B. Yuksek, G. Inalhan
{"title":"Transition Flight Control System Design for Fixed-Wing VTOL UAV: A Reinforcement Learning Approach","authors":"B. Yuksek, G. Inalhan","doi":"10.2514/6.2022-0879","DOIUrl":"https://doi.org/10.2514/6.2022-0879","url":null,"abstract":"Tilt-rotor vertical takeoff and landing aerial vehicles have been gaining popularity in urban air mobility applications because of their ability in performing both hover and forward flight regimes. This hybrid concept leads energy efficiency which is quite important to obtain a profitable and sustainable operation. However, inherent dynamical nonlinearities of the aerial platform requires adaptation capability of the control systems. In addition, transition flight phase should be planned carefully not only for a profitable operation but also for a safe transition between flight regimes in the urban airspace. In this paper, transition flight phase of a tilt-rotor vertical-takeoff-and-landing unmanned aerial vehicle (UAV) is studied. Low-level flight control systems are designed based on adaptive dynamic inversion methodology to compensate aerodynamic effects during the transition phase. Reinforcement learning method is utilized to provide safety and energy efficiency during the transition flight phase. An actor-critic agent is utilized and trained by using deep deterministic policy gradient algorithm to augment the collective channel of the UAV. This augmentation on the collective input is used to adjust flight path angle of the UAV which results in adjusting the angle of attack when pitch angle is zero. By using this relationship, it is proposed to generate aerodynamic lift force and perform transition flight with minimum altitude change and energy usage. Simulation results show that the agent reduces the collective signal level as the aerodynamic lift force is created in the descent flight phase. This affects overall system efficiency, reduces operational costs and makes the enterprise more profitable.","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115743381","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: 7
Disturbance Observer-based Reinforcement Learning Control and the Application to a Nonlinear Dynamic System 基于扰动观测器的强化学习控制及其在非线性动态系统中的应用
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-1586
Christoph Aoun, H. Moncayo
{"title":"Disturbance Observer-based Reinforcement Learning Control and the Application to a Nonlinear Dynamic System","authors":"Christoph Aoun, H. Moncayo","doi":"10.2514/6.2022-1586","DOIUrl":"https://doi.org/10.2514/6.2022-1586","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125226148","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
Poincaré Filter for Trajectory Design in Multi-body Regime 多体状态下轨迹设计的poincarcarr滤波
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-1129
Jinsung Lee, Jaemyung Ahn
{"title":"Poincaré Filter for Trajectory Design in Multi-body Regime","authors":"Jinsung Lee, Jaemyung Ahn","doi":"10.2514/6.2022-1129","DOIUrl":"https://doi.org/10.2514/6.2022-1129","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125227252","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
An Automated Process to Generate Constitutive Models for Granular Mixtures Using LIGGGHTS 使用光自动生成颗粒混合物本构模型的过程
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-2194
Jason C. Howison, M. Gale, Ranjan S. Mehta
{"title":"An Automated Process to Generate Constitutive Models for Granular Mixtures Using LIGGGHTS","authors":"Jason C. Howison, M. Gale, Ranjan S. Mehta","doi":"10.2514/6.2022-2194","DOIUrl":"https://doi.org/10.2514/6.2022-2194","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116781466","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
Whirl Flutter Test of the Maryland Tiltrotor Rig: Prediction and Validation 马里兰倾转旋翼机旋翼颤振试验:预测与验证
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-0927
Seyhan Gul, A. Datta
{"title":"Whirl Flutter Test of the Maryland Tiltrotor Rig: Prediction and Validation","authors":"Seyhan Gul, A. Datta","doi":"10.2514/6.2022-0927","DOIUrl":"https://doi.org/10.2514/6.2022-0927","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116980106","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: 3
Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure. O2/ co2比对常压下氧燃料射流扩散火焰稳定性和近场结构的影响
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-0640
M. Bukar, Suman Basnet, Taesung Kim, G. Magnotti
{"title":"Effect of O2/CO2ratio on stability and near field structure of oxyfuel jet diffusion flames at atmospheric pressure.","authors":"M. Bukar, Suman Basnet, Taesung Kim, G. Magnotti","doi":"10.2514/6.2022-0640","DOIUrl":"https://doi.org/10.2514/6.2022-0640","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117107826","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
Optical Dilatometry Measurements for the Quantification of Sustainable Aviation Fuel Materials Compatibility 可持续航空燃料材料相容性量化的光学膨胀测量
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-1240
Conor Faulhaber, Shane T. Kosir, Kathleen Gawelek, R. Boehm, Joshua S. Heyne
{"title":"Optical Dilatometry Measurements for the Quantification of Sustainable Aviation Fuel Materials Compatibility","authors":"Conor Faulhaber, Shane T. Kosir, Kathleen Gawelek, R. Boehm, Joshua S. Heyne","doi":"10.2514/6.2022-1240","DOIUrl":"https://doi.org/10.2514/6.2022-1240","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121130639","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
Comparison of Wind-Tunnel and Flight Unsteady Pressure Environments for the Ares I-X Flight Test Vehicle 战神I-X飞行试验飞行器风洞与飞行非定常压力环境比较
AIAA SCITECH 2022 Forum Pub Date : 2022-01-03 DOI: 10.2514/6.2022-2413
P. S. Heaney, David J. Piatak, M. Sekula, F. Soranna
{"title":"Comparison of Wind-Tunnel and Flight Unsteady Pressure Environments for the Ares I-X Flight Test Vehicle","authors":"P. S. Heaney, David J. Piatak, M. Sekula, F. Soranna","doi":"10.2514/6.2022-2413","DOIUrl":"https://doi.org/10.2514/6.2022-2413","url":null,"abstract":"","PeriodicalId":192386,"journal":{"name":"AIAA SCITECH 2022 Forum","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121280199","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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