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Structural and Aerodynamic Preliminary Design Optimization for Highly Flexible Wing–Tail Configuration 高柔性翼尾结构与气动初步设计优化
IF 2.2 3区 工程技术
Journal of Aircraft Pub Date : 2023-11-30 DOI: 10.2514/1.c037420
Zack Krawczyk, Ryan Paul, Alfonso del Carre
{"title":"Structural and Aerodynamic Preliminary Design Optimization for Highly Flexible Wing–Tail Configuration","authors":"Zack Krawczyk, Ryan Paul, Alfonso del Carre","doi":"10.2514/1.c037420","DOIUrl":"https://doi.org/10.2514/1.c037420","url":null,"abstract":"Journal of Aircraft, Ahead of Print. <br/>","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"7 ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Supersonic Wind Tunnel Flow Characterization Using Planar Laser [math] Rayleigh Scattering 利用平面激光[数学]瑞利散射表征超音速风洞流动
IF 2.2 3区 工程技术
Journal of Aircraft Pub Date : 2023-11-30 DOI: 10.2514/1.c037243
Camilo Aguilera, Jonathan Sosa, Evan W. Hyde, David S. Miklosovic, David A. Kessler
{"title":"Supersonic Wind Tunnel Flow Characterization Using Planar Laser [math] Rayleigh Scattering","authors":"Camilo Aguilera, Jonathan Sosa, Evan W. Hyde, David S. Miklosovic, David A. Kessler","doi":"10.2514/1.c037243","DOIUrl":"https://doi.org/10.2514/1.c037243","url":null,"abstract":"Journal of Aircraft, Ahead of Print. <br/>","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"31 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Powered Low-Speed Experimental Aerodynamic Investigation of an Over-Wing-Mounted Nacelle Configuration 上翼机舱结构动力低速气动实验研究
IF 2.2 3区 工程技术
Journal of Aircraft Pub Date : 2023-11-30 DOI: 10.2514/1.c037653
Vinícius T. Silva, Anders Lundbladh, Carlos Xisto, Petter Miltén, Isak Jonsson
{"title":"Powered Low-Speed Experimental Aerodynamic Investigation of an Over-Wing-Mounted Nacelle Configuration","authors":"Vinícius T. Silva, Anders Lundbladh, Carlos Xisto, Petter Miltén, Isak Jonsson","doi":"10.2514/1.c037653","DOIUrl":"https://doi.org/10.2514/1.c037653","url":null,"abstract":"Journal of Aircraft, Ahead of Print. <br/>","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"65 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138519318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fountain Flow Visualization in Quadrotor Wake Decreasing Rotor Thrust In-Ground Effect 减小旋翼地推力效应的四旋翼尾流流场可视化
IF 2.2 3区 工程技术
Journal of Aircraft Pub Date : 2023-11-30 DOI: 10.2514/1.c037101
Hikaru Otsuka, Masayoshi Kohno, Keiji Nagatani
{"title":"Fountain Flow Visualization in Quadrotor Wake Decreasing Rotor Thrust In-Ground Effect","authors":"Hikaru Otsuka, Masayoshi Kohno, Keiji Nagatani","doi":"10.2514/1.c037101","DOIUrl":"https://doi.org/10.2514/1.c037101","url":null,"abstract":"Journal of Aircraft, Ahead of Print. <br/>","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"42 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138515500","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Control-Oriented Modeling for Flexible Aircraft 面向控制的柔性飞行器建模
IF 2.2 3区 工程技术
Journal of Aircraft Pub Date : 2023-11-30 DOI: 10.2514/1.c037049
Molong Duan, Carlos E. S. Cesnik, Ilya V. Kolmanovsky, Fabio Vetrano
{"title":"Control-Oriented Modeling for Flexible Aircraft","authors":"Molong Duan, Carlos E. S. Cesnik, Ilya V. Kolmanovsky, Fabio Vetrano","doi":"10.2514/1.c037049","DOIUrl":"https://doi.org/10.2514/1.c037049","url":null,"abstract":"Journal of Aircraft, Ahead of Print. <br/>","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"29 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138515524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Large Deflection Model and Optimal Design for a Morphing Wing Leading-Edge Skin 变形机翼前缘蒙皮大挠度模型及优化设计
IF 2.2 3区 工程技术
Journal of Aircraft Pub Date : 2023-11-21 DOI: 10.2514/1.c037399
Fan Yang, Hong Xiao, Guang Yang, Hongwei Guo, Rongqiang Liu, Zongquan Deng
{"title":"Large Deflection Model and Optimal Design for a Morphing Wing Leading-Edge Skin","authors":"Fan Yang, Hong Xiao, Guang Yang, Hongwei Guo, Rongqiang Liu, Zongquan Deng","doi":"10.2514/1.c037399","DOIUrl":"https://doi.org/10.2514/1.c037399","url":null,"abstract":"Journal of Aircraft, Ahead of Print. <br/>","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"11 1","pages":""},"PeriodicalIF":2.2,"publicationDate":"2023-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138515502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical Investigation of an Unmanned Aerial Vehicle Launch from Military Transport Aircrafts 军用运输机上无人机发射的数值研究
3区 工程技术
Journal of Aircraft Pub Date : 2023-11-07 DOI: 10.2514/1.c037360
Andreas Goerttler, Christian Schnepf
{"title":"Numerical Investigation of an Unmanned Aerial Vehicle Launch from Military Transport Aircrafts","authors":"Andreas Goerttler, Christian Schnepf","doi":"10.2514/1.c037360","DOIUrl":"https://doi.org/10.2514/1.c037360","url":null,"abstract":"Launching a fixed-wing unmanned aerial vehicle (UAV) out of the cargo hold of a flying transport aircraft (TA) is numerically investigated. A numerical tool chain is established to capture the dynamic motion of the UAV during launch, in which the DLR-TAU Code flow solver is coupled with a flight mechanics tool. A parameter study investigates how the UAV launch speed, position, and orientation relative to the loading platform of two different TAs affect its trajectory and aerodynamic behaviors. Furthermore, the influence of the angle of attack of the TA on the UAV trajectory and pitch angle is analyzed. This information will help design a launch mechanism that ensures a safe separation and aerodynamically stable flight after launch.","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135479884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the Dynamic Behavior of Wings Incorporating Floating Wingtip Fuel Tanks 带浮动翼尖燃料箱的机翼动力学特性研究
3区 工程技术
Journal of Aircraft Pub Date : 2023-11-07 DOI: 10.2514/1.c037519
Fintan Healy, Joe De Courcy, Huaiyuan Gu, Djamel Rezgui, Jonathan Cooper, Thomas Wilson, Andrea Castrichini
{"title":"On the Dynamic Behavior of Wings Incorporating Floating Wingtip Fuel Tanks","authors":"Fintan Healy, Joe De Courcy, Huaiyuan Gu, Djamel Rezgui, Jonathan Cooper, Thomas Wilson, Andrea Castrichini","doi":"10.2514/1.c037519","DOIUrl":"https://doi.org/10.2514/1.c037519","url":null,"abstract":"Recent studies have shown that semi-aeroelastic hinge devices can enable larger aircraft wingspans. Such a device would be folded on the ground to meet airport width restrictions, locked during cruise for optimal aerodynamic performance, and released during maneuvers to alleviate flight loads. In contrast, this paper uses a wind tunnel experiment to study the aeroelastic behavior of floating wingtip fuel tanks. This device consists of a freely floating wingtip with an additional mass attached in the form of a liquid-filled fuel tank. The static aeroelastic results show that altering the fuel tank’s filling level and position allows the wingtip to float at an optimal angle for aerodynamic efficiency across various angles of attack and fuel masses. Additionally, this paper shows that, with careful selection of the mass distribution of the wingtip, dynamic load alleviation comparable to the semi-aeroelastic hinge concept can be achieved during turbulence and one-minus-cosine encounters. Furthermore, the effect of fluid motion is shown to reduce incremental loads during random turbulence encounters by up to 10%; however, it has a negligible impact on the response to one-minus-cosine encounters. Such results are also confirmed by a numerical model incorporating a simple reduced-order fluid sloshing model.","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"80 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135539967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of an Open-Source Aircraft Noise Prediction Model Using Approach Phase Measurements 基于接近相位测量的开源飞机噪声预测模型评估
3区 工程技术
Journal of Aircraft Pub Date : 2023-11-07 DOI: 10.2514/1.c037332
Evangelia Maria Thoma, Tomas Grönstedt, Evelyn Otero Sola, Xin Zhao
{"title":"Assessment of an Open-Source Aircraft Noise Prediction Model Using Approach Phase Measurements","authors":"Evangelia Maria Thoma, Tomas Grönstedt, Evelyn Otero Sola, Xin Zhao","doi":"10.2514/1.c037332","DOIUrl":"https://doi.org/10.2514/1.c037332","url":null,"abstract":"An open-source simulation model for aircraft noise prediction is presented and validated using backpropagated noise measurements for a state-of-the-art engine and aircraft. The validation is focused on approach procedures and was performed using ground-based noise measurements that were taken at 17 recording stations for a total of 18 consecutive flights carried out during the morning of 8 April 2021. The flights were performed using two A321neo aircraft with LEAP-1A engines. It is demonstrated that the presented noise model provides a satisfactory estimation of the source noise for varying approach configurations and flight conditions. Configurations using a greater number of high-lift devices are particularly well predicted in the mid- and high-frequency regions, whereas the lower configuration settings show greater spectral deviations, which are partly attributed to measurement uncertainties caused by the increased aircraft–microphone distance. The model can predict the overall mean total sound intensity level within a 2 dB accuracy for all configurations, while the average predicted level at each microphone differs by less than 3 dB from the measurement average, for all cases except one. Variation in aircraft speed showed to have a strong impact on the predicted total noise, which matches the well-recognized sixth-power Mach number far-field sound intensity scaling law for airframe noise models, while the measurements indicated a less significant dependency. This is mainly due to installation effects and noise reduction measures that are not included in the models. Nevertheless, the variations in the spectra of the predicted and measured noise showed similar patterns.","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"40 162","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135540009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Automatic Continuous Thrust Control for Supersonic Transport Takeoff Noise Reduction 超音速运输机起飞降噪的自动连续推力控制
3区 工程技术
Journal of Aircraft Pub Date : 2023-11-05 DOI: 10.2514/1.c037394
Laurens J. A. Voet, Prakash Prashanth, Raymond L. Speth, Jayant S. Sabnis, Choon S. Tan, Steven R. H. Barrett
{"title":"Automatic Continuous Thrust Control for Supersonic Transport Takeoff Noise Reduction","authors":"Laurens J. A. Voet, Prakash Prashanth, Raymond L. Speth, Jayant S. Sabnis, Choon S. Tan, Steven R. H. Barrett","doi":"10.2514/1.c037394","DOIUrl":"https://doi.org/10.2514/1.c037394","url":null,"abstract":"Advanced takeoff trajectories are proposed for supersonic transport noise reduction by capitalizing on excess engine thrust and improved aerodynamic efficiency at higher takeoff speeds. These novel trajectories use i) automatic continuous control of thrust, ii) increased takeoff speed, and iii) reduced cut-back altitude, compared to conventional pilot-initiated discrete thrust cut-back procedures currently used for subsonic transport. In this paper, we develop an optimal control framework to assess the attributes of effective takeoff trajectories for supersonic transport that yield minimum noise levels. We quantify the noise reduction potential of advanced takeoff trajectories for the eight-passenger, 55-metric-ton, Mach-1.4 NASA Supersonic Technology Concept Airplane. For the aircraft examined, these advanced takeoff trajectories enable a cumulative certification noise reduction of 10.6 EPNdB, which is insufficient to meet current subsonic transport noise limits.","PeriodicalId":14927,"journal":{"name":"Journal of Aircraft","volume":"53 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135725714","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","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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