Journal of aeronautics, astronautics and aviation, Series A最新文献_第2页

A Study of 3D Printed Box Structure 3D打印箱体结构的研究

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-06-01 DOI: 10.6125/JOAAA.202106_53(2).05

W. Kuntjoro, N. Anwar, R. E. Nasir

引用次数: 0

Analysis and Visualization of KLIA Flight Departure Delay Pattern 吉隆坡国际机场航班起飞延误模式分析与可视化

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-06-01 DOI: 10.6125/JOAAA.202106_53(2).01

M. Z. Abidin, S. A. Rahman, I. Nursyirwan, Amiruddin Mustafa

{"title":"Analysis and Visualization of KLIA Flight Departure Delay Pattern","authors":"M. Z. Abidin, S. A. Rahman, I. Nursyirwan, Amiruddin Mustafa","doi":"10.6125/JOAAA.202106_53(2).01","DOIUrl":"https://doi.org/10.6125/JOAAA.202106_53(2).01","url":null,"abstract":"The number of aircraft operating at Kuala Lumpur International Airport (KLIA) and at KLIA Terminal Control Area (TMA) has steadily increased over the year. It has been forecasted that by 2020, KLIA will reach a number of 63 million passengers per annum, which is more than 80% of its capacity. The aim of the study is to find a correlation between flight departure delay and air occupancy, as well as ground parameters of the departure. To achieve this, regression and correlation analysis were conducted on the traffic delay, air occupancy, runway departure and runway occupancy time. The data was acquired using Automatic Dependent Surveillance Broadcast (ADS-B) from 1/2/2019 to 28/2/2019. Based on the analysis, it was observed that the mean daily flight departure delay has a moderate positive relationship with TMA air occupancy with a correlation of r(26) = 0.550, p = 0.004. It can also be concluded that different combinations of routes used for the flight to depart, from its taxiing points to the departure runway, affects the delay of the departure. However, other parameters such as runway occupancy time and distance to runway only had a weak correlation (r lower than 0.5) towards departure delay.","PeriodicalId":335344,"journal":{"name":"Journal of aeronautics, astronautics and aviation, Series A","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130015852","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

Evaluation of Quadrotor Flight and Battery Consumption under Wind Turbulence conditions in an Open-Jet Wind Tunnel 开放射流风洞中风湍流条件下四旋翼飞行和电池消耗评估

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-06-01 DOI: 10.6125/JOAAA.202106_53(2).25

M. N. Elya, M. Z. Jurij, M. R. Saad, S. Azrad

引用次数: 0

Validation of Low Fidelity Propeller-Wing Modeling Method at Low Reynolds Number 低雷诺数下低保真螺旋桨翼建模方法的验证

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-06-01 DOI: 10.6125/JOAAA.202106_53(2).27

Baizura Bohari, Ahmad Zaim Adam Ghazali, M. R. Saad

{"title":"Validation of Low Fidelity Propeller-Wing Modeling Method at Low Reynolds Number","authors":"Baizura Bohari, Ahmad Zaim Adam Ghazali, M. R. Saad","doi":"10.6125/JOAAA.202106_53(2).27","DOIUrl":"https://doi.org/10.6125/JOAAA.202106_53(2).27","url":null,"abstract":"An introduction of slipstream effects induced by the distributed propeller at low Reynolds number will lead to notable reductions in aerodynamics efficiency with significance changes of the free-stream properties of the wing. To address the issues, a set of reasonable aerodynamic design method for multiple propeller-wing integration is necessary to capture the wing aerodynamics performances behaviour at low Reynolds number. In that respect, the flow condition of a rectangular wing with NACA0012 airfoil section under the influence of the propeller slipstream was simulated and validated using low-order fidelity solver. A validation of the methods chosen found to be assuring in comparison with experimental data. The effects of various parameters were taken into account like the angle of attack, the rotational speed, the thrust and the power required. The aerodynamic aspect of the propeller-wing integration for a number of actuator disks propeller modelled distributed along the span of the wing of the aircraft is measured. The results show the role of propeller diameter and the numbers installed along the wingspan lead to a significance increase on lift performance and lift to drag ratio.","PeriodicalId":335344,"journal":{"name":"Journal of aeronautics, astronautics and aviation, Series A","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121063410","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

Computational Study of Mass Reduction of a Conceptual Microsatellite Structural Subassembly Utilizing Metal Perforations 利用金属穿孔的概念微卫星结构组件减重的计算研究

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-03-01 DOI: 10.6125/JOAAA.202103_53(1).05

Sarmad Daood Salman Dawood, M. Y. Harmin, A. Harithuddin, C. C. Ciang, A. Rafie

{"title":"Computational Study of Mass Reduction of a Conceptual Microsatellite Structural Subassembly Utilizing Metal Perforations","authors":"Sarmad Daood Salman Dawood, M. Y. Harmin, A. Harithuddin, C. C. Ciang, A. Rafie","doi":"10.6125/JOAAA.202103_53(1).05","DOIUrl":"https://doi.org/10.6125/JOAAA.202103_53(1).05","url":null,"abstract":"A subassembly from the structural subsystem for a conceptual microsatellite designed for earth resources missions underwent normal modes analyses, after implementing an alternative approach to mass reduction, other than implementing advanced space qualified materials. This approach involved developing and implementing a set of geometric patterns that imposed upon certain components of the structural subassembly as perforation patterns, hence achieving mass reduction through straightforward material removal. This approach was proposed to introduce a relatively low-cost and easily implemented mass reduction methodology, which can be utilized by entities with little or no infrastructure and experience in advanced materials, though aspiring to develop their own satellite developing capabilities. The subassembly was the primary load path through which the launch loads pass, the so-called central box, consisting of four Aluminum 6061 identical planar plates, fastened together by titanium fasteners. The subassembly's fundamental natural frequency and attendant mode shape, for all cases, were computed utilizing the finite element method. The current work's approach to mass reduction resulted in an approximate 20% percent reduction in mass from the unperforated case, depending upon the exact thickness value employed for the subassembly plates, hence indicating that the perforation approach is valid.","PeriodicalId":335344,"journal":{"name":"Journal of aeronautics, astronautics and aviation, Series A","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124184194","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

Localization Uncertainty Constrained Lateral PID Control with Aids of Fuzzy Logic Considering LiDAR NDT Matching Error 考虑激光雷达无损检测匹配误差的定位不确定性约束模糊PID横向控制

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-03-01 DOI: 10.6125/JOAAA.202103_53(1).03

Saifei Hu, Yinghong Kan, L. Hsu

引用次数: 0

Implementation of Wide Area Multilateration Using a 1090 MHz ADS-B Signal 利用1090mhz ADS-B信号实现广域复用

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-03-01 DOI: 10.6125/JOAAA.202103_53(1).02

S. Jheng, Shau-Shiun Jan

引用次数: 0

Numerical Investigation on the Damage of Whirling Engine Blades Subjected to Bird Strike Impact 鸟击对旋转发动机叶片损伤的数值研究

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2021-01-13 DOI: 10.6125/JOAAA.202106_53(2).11

S. Shahimi, N. Abdullah, M. Hrairi, M. Ahmad

引用次数: 2

Measurement-Domain Cooperative Navigation for Multi-UAV Systems Augmented by Relative Positions 相对位置增强多无人机系统测量域协同导航

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2020-12-01 DOI: 10.6125/JOAAA.202012_52(4).05

L. Xiyu, X. Zhan, Shizhuang Wang, Y. Zhai

{"title":"Measurement-Domain Cooperative Navigation for Multi-UAV Systems Augmented by Relative Positions","authors":"L. Xiyu, X. Zhan, Shizhuang Wang, Y. Zhai","doi":"10.6125/JOAAA.202012_52(4).05","DOIUrl":"https://doi.org/10.6125/JOAAA.202012_52(4).05","url":null,"abstract":"This paper proposes a novel cooperative navigation scheme to support multiple Unmanned Aerial Vehicle (UAV) formation flight. Comparing to standalone Global Navigation Satellite System (GNSS), the new approach takes advantage of inner communication capability among UAVs to achieve navigation information fusion. As a result, the navigation accuracy, robustness and continuity can be improved. This is of particular significance in urban environments, because the user receivers are subject to high multipath, non-line-of-sight signal reception and signal blockage. With the aid of relative sensing technologies, all the GNSS observations are firstly combined to estimate the position of a designated point (defined as virtual centroid). Then, the positions of each individual UAV are derived by fusing the position estimate of virtual centroid and the known relative positions. This method is implemented, validated, and analyzed through a series of simulations, and the results suggest significant accuracy improvement as compared to standalone GNSS approaches. Moreover, sensitivity analyses are carried out to address the impact of environmental changes on navigation performance.","PeriodicalId":335344,"journal":{"name":"Journal of aeronautics, astronautics and aviation, Series A","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114565266","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

An Improved Precise Point Positioning Method Based on Between-Satellite Single-Difference and Carrier Smoothing 基于星间单差和载波平滑的改进精确点定位方法

Journal of aeronautics, astronautics and aviation, Series A Pub Date : 2020-12-01 DOI: 10.6125/JOAAA.202012_52(4).04

H. Wang, J. Juang

引用次数: 1