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Obtaining Condition Monitoring Data for the Prognostics of the Flight Time of Unmanned Aerial Vehicles 获取状态监测数据用于无人机飞行时间预测
Pub Date : 2023-06-26 DOI: 10.30518/jav.1309731
Melih Erşen, Mehmet Konar
In recent years, the use of Unmanned Aerial Vehicles (UAVs) that can fly at low and medium altitudes has become widespread in the world. Knowing the airtime and the maximum range that the UAVs, which are used in critical missions, especially in the military field, are important for the reliability of the mission to be carried out. Therefore, in this study, the creation of a data set to calculate the flight time and range of the UAV using the prognostic method, which is one of the heuristic methods, is discussed. For this purpose, a fixed-wing UAV was used in this study to create the data set to be used in the prognostic method. The UAV used in flights has a weight of 2.5 kg, a wingspan of 1.3 m, and a body length of 1 m. In addition, thanks to the control card used in the UAV, both manual and autonomous flights were made. The flight data of the UAV was transferred to the Ground Control Station instantly. As a result, data sets were obtained from manual and autonomous flights to be used in the prognostic method. By using these data sets, it will be possible to calculate the duration and range of the UAV in the future flights.
近年来,能够在低、中高度飞行的无人驾驶飞行器(uav)在世界范围内得到了广泛的应用。了解无人机的飞行时间和最大航程,对于执行关键任务,特别是在军事领域,对执行任务的可靠性至关重要。因此,本研究讨论了利用启发式方法中的一种预测方法创建数据集来计算无人机的飞行时间和航程。为此,本研究使用固定翼无人机来创建用于预测方法的数据集。用于飞行的无人机重量为2.5公斤,翼展为1.3米,机身长度为1米。此外,由于无人机使用的控制卡,可以进行手动和自主飞行。无人机的飞行数据被立即转移到地面控制站。因此,从手动和自动飞行中获得的数据集将用于预测方法。通过使用这些数据集,将有可能计算无人机在未来飞行中的持续时间和航程。
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引用次数: 1
Elevating Aviation Education: A Comprehensive Examination of Technology's Role in Modern Flight Training 提升航空教育:现代飞行训练中技术作用的综合考察
Pub Date : 2023-06-16 DOI: 10.30518/jav.1279718
Nazmi Dinçer
As the aviation sector witnesses rapid technological progress, it opens new avenues to improve training methodologies and optimize performance results. This exhaustive analysis delves into the influence of technology incorporation on the efficacy of aviation training, learner involvement, and skills retention. It examines a wide array of research, concentrating on significant aspects like immersive technologies, artificial intelligence, game-based education, remote and cooperative training, and the enduring consequences of technology-boosted training. The outcomes demonstrate a favorable link between technology incorporation and enhanced learning results, elevated learner enthusiasm, and superior knowledge retention. The analysis further pinpoints crucial future trajectories, such as the broadening of immersive technologies, the creation of adjustable training systems, and the assessment of long-lasting training impacts. By tackling ethical and privacy issues and formulating optimal practices and guidelines, the aviation sector can effectively tap into the possibilities offered by technology, resulting in better-equipped professionals, augmented safety norms, and heightened operational competence. This analysis acts as a significant reference for researchers, practitioners, and decision-makers, offering insight into the present state of technology-augmented aviation training and underlining paths for upcoming research and innovation.
随着航空部门见证了快速的技术进步,它为改进培训方法和优化绩效结果开辟了新的途径。这项详尽的分析深入研究了技术整合对航空培训效果、学习者参与和技能保留的影响。它考察了一系列广泛的研究,集中在诸如沉浸式技术、人工智能、基于游戏的教育、远程和合作培训以及技术促进培训的持久后果等重要方面。研究结果表明,技术融入与提高学习效果、学习者热情和知识保留之间存在良好的联系。分析进一步指出了关键的未来轨迹,如沉浸式技术的扩展、可调整培训系统的创建以及对长期培训影响的评估。通过解决道德和隐私问题,制定最佳做法和指导方针,航空业可以有效地利用技术提供的可能性,从而提高专业人员的装备,增强安全规范,提高业务能力。该分析为研究人员、从业人员和决策者提供了重要的参考,提供了对技术增强航空培训现状的洞察,并强调了即将进行的研究和创新的路径。
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引用次数: 0
Virtual Training Applications in Aviation BITE Test Application 虚拟训练在航空BITE测试中的应用
Pub Date : 2023-06-10 DOI: 10.30518/jav.1241442
Yunus Sarikaya, Hakan Aydogan, F. Aras
In this study, the objective is to scientifically examine the usability of multi-user virtual environments as an alternative solution to traditional methods in order to enhance the effectiveness and create widespread opportunities for training applications in aviation, which are difficult and risky to implement on actual aircraft. For this purpose, a virtual environment application was developed, specifically focusing on the examination of Built-In Test Equipment (BITE) test procedures conducted by maintenance personnel during aircraft maintenance. The application included the design of a Multi-Function Control and Display Unit (MCDU) in the virtual environment. The benefits and limitations of the virtual environment application were discussed, highlighting how the challenging and risky working conditions can be efficiently transformed into practical training scenarios in various contexts, promoting the development and reinforcement of skills for personnel. Despite the extensive use of multi-user virtual environments in various fields, it is evident that there is scarce research conducted in the aviation maintenance and repair sector. This study serves as a significant initiative to draw attention to the potential usability of multi-user virtual environments for educational purposes in the aviation maintenance and repair sector.
在本研究中,目的是科学地检验多用户虚拟环境作为传统方法的替代解决方案的可用性,以提高有效性并为航空培训应用创造广泛的机会,这在实际飞机上实施是困难和有风险的。为此,开发了一个虚拟环境应用程序,专门针对维修人员在飞机维修期间进行的内置测试设备(BITE)测试程序的检查。该应用程序包括在虚拟环境中设计多功能控制和显示单元(MCDU)。讨论了虚拟环境应用的优点和局限性,强调了如何将具有挑战性和风险的工作条件有效地转化为各种背景下的实际培训场景,促进人员技能的发展和加强。尽管多用户虚拟环境在各个领域得到了广泛的应用,但很明显,在航空维护和维修领域进行的研究很少。这项研究是一项重要的倡议,提请注意多用户虚拟环境在航空维修和维修部门的教育用途的潜在可用性。
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引用次数: 0
A PESTEL Analysis of The Impacts of COVID-19 Crisis on Air Transportation Sector's Future 新冠肺炎危机对航空运输业未来影响的PESTEL分析
Pub Date : 2023-06-07 DOI: 10.30518/jav.1259307
Adem Pinar
In this study, the Covid-19 pandemic, which has significantly impacted the aviation industry, is examined from six external factors including political, economic, sociological, technological, environmental, and legal using a PESTEL analysis. Initially, flight restrictions were implemented due to the Covid-19 pandemic, and airline companies were also affected by government-imposed social distancing measures. Economically, the Covid-19 pandemic has been particularly damaging to passenger transportation, with some countries experiencing a recovery but others facing employment issues in the industry. Sociologically, there has been an increase in reluctance to fly and changes in consumer behavior and habits, with a decrease in demand for unnecessary products. This process has also led to a number of positive developments from a technological standpoint, such as the rapid development and deployment of new vaccines and health monitoring technologies, as well as a decrease in emissions from the industry. This study is original in its examination of the Covid-19 pandemic impacts on the aviation industry using a PESTEL analysis. Based on the study's findings, strategies should focus on restructuring the aviation industry for Covid-19 pandemic readiness and recovery, including promoting restructured travel packages, low-cost flights, and popular routes. Emphasis on energy efficiency and environmental sustainability is crucial.
在本研究中,使用PESTEL分析从政治、经济、社会、技术、环境和法律等六个外部因素考察了对航空业产生重大影响的Covid-19大流行。最初,由于新冠肺炎大流行,实施了航班限制,航空公司也受到政府实施的社交距离措施的影响。从经济上看,2019冠状病毒病大流行对客运造成的损害尤其严重,一些国家正在复苏,但另一些国家则面临该行业的就业问题。从社会学角度来看,人们越来越不愿意坐飞机,消费者的行为和习惯也发生了变化,对不必要产品的需求减少了。从技术角度来看,这一进程也导致了一些积极的发展,例如迅速开发和部署新的疫苗和健康监测技术,以及减少该行业的排放量。本研究的独创之处在于使用PESTEL分析分析了Covid-19大流行对航空业的影响。根据研究结果,战略应侧重于重组航空业,以做好Covid-19大流行的准备和恢复,包括推广重组的旅行套餐、低成本航班和热门航线。强调能源效率和环境可持续性至关重要。
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引用次数: 0
Stock Price Forecasting with Box-Jenkins Models: Delta Airlines Application Box-Jenkins模型的股票价格预测:达美航空的应用
Pub Date : 2023-06-06 DOI: 10.30518/jav.1277250
Muhammed Fatih Yürük
The aviation industry has a great impact on the economic development of countries. This industry is effective in increasing the global gross domestic product both directly and indirectly. The share of airline companies in this economic development is important. This study, it is tried to estimate the monthly stock price of an airline company that contributes to economic growth. In the study, the monthly prices of shares of Delta airlines, which are among the largest airline companies in America, traded in the New York Stock Exchange (NYSE), covering the period of 2010 January-2021 December, were included in the study. Stock prices are from Box- Jenkins models; It has been tried to estimate using Autoregressive Models (AR), Moving Average Models (MA), Autoregressive and Moving Average Model (ARMA). In the study, the (AR) model was included in the prediction modelling because it provided the assumptions. The result of the study showed that the Box- Jenkins approach gave successful results in the estimation outputs.
航空工业对各国的经济发展有很大的影响。该行业在直接和间接增加全球国内生产总值方面都是有效的。航空公司在经济发展中的份额很重要。本研究试图估算对经济增长有贡献的航空公司的月股价。在这项研究中,Delta航空公司是美国最大的航空公司之一,在纽约证券交易所(NYSE)交易,涵盖2010年1月至2021年12月期间的股票月度价格被纳入研究。股票价格来自Box- Jenkins模型;已经尝试使用自回归模型(AR),移动平均模型(MA),自回归和移动平均模型(ARMA)进行估计。在本研究中,(AR)模型被纳入预测建模,因为它提供了假设。研究结果表明,Box- Jenkins方法在估计输出中取得了成功的结果。
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引用次数: 0
Investigation of Dry Sliding Wear Behavior of CFRP Composite Used In New Generation Aircraft Wings 新一代飞机机翼用CFRP复合材料干滑动磨损性能研究
Pub Date : 2023-06-06 DOI: 10.30518/jav.1287618
M. Gök, Y. Küçük, Murat Pehli̇vanli, A. Erdoğan
In this study, dry sliding wear behavior of CFRP (Carbon fiber reinforced plastic) composite sample produced with different laying angles was investigated. Experiments were carried out on Ball-On-Disc wear device under 1, 3 and 5 N loads at room temperature. 3D optical microscope was used to determine the volume losses in the samples. The worn surface morphology of the samples was examined with the help of SEM (Scanning Electron Microscopy). In the test results, the volume losses of the samples increased depending on the increasing loads and shear rate. It has been understood that the change of the laying angle is important in the dry-sliding resistance of the samples. The wear resistance of the samples produced with 45 degree laying was better at both sliding speeds and all loads. It has also been understood that the laying angle is also effective in the coefficient of friction. Delamination, plastic deformation type dominant wear mechanisms have occurred.
研究了碳纤维增强塑料(CFRP)复合材料在不同铺放角度下的干滑动磨损行为。在1、3、5 N载荷下的球盘磨损装置上进行了实验。采用三维光学显微镜测定样品的体积损失。利用扫描电子显微镜对试样的磨损表面形貌进行了观察。在试验结果中,试样的体积损失随载荷和剪切速率的增加而增加。已经了解到,铺设角度的变化对样品的干滑动阻力有重要影响。45度铺设的试样在滑动速度和各种载荷下的耐磨性都较好。我们还了解到,铺设角度对摩擦系数也有影响。剥落、塑性变形型是主要的磨损机制。
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引用次数: 0
Innovative Morphing UAV Design and Manufacture 创新型变形无人机设计与制造
Pub Date : 2023-05-30 DOI: 10.30518/jav.1253901
S. Çoban, Tuğrul Oktay
In this study, an unmanned aerial vehicle (UAV) with passive pre-flight and active in-flight morphing capability was designed and manufactured. First of all, conceptual design work was done. Wing and tail, which are the main carriers, were selected to ensure maximum liftt, minimum drag and stability of the UAV. Liquid fuel engines were preferred due to their high power and airtime. The engine, which enables the controlled and uncontrolled flight of the UAV, has been run-in to make it safer and more efficient before being used in real-time flights. Profiles were selected by analyzing the tail set consisting of the rudder and the elevator. The nose cone of the unmanned aerial vehicle was produced by improving the aerodynamic performance. In the aircraft geometry, the passive morphing mechanism, which is performed once before the flight, and the active morphing mechanism, which is performed continuously during the flight, are manufactured using servo motors. This improved the flight performance and made it possible to fly in some unfavorable conditions. The most basic superior feature of the manufactured UAV from the existing UAVs is its ability to morphing.
设计并制造了一种具有被动预飞和主动飞行变形能力的无人机。首先,完成了概念设计工作。机翼和尾部作为主要载体,被选择以确保无人机的最大升力、最小阻力和稳定性。液体燃料发动机因其高功率和飞行时间而受到青睐。该发动机能够实现无人机的受控和非受控飞行,在用于实时飞行之前,已经进行了磨合,使其更安全、更高效。通过对由舵和升降舵组成的尾组进行分析,选择了翼型。无人机机头锥体是通过改进气动性能而产生的。在飞机几何结构中,采用伺服电机制造在飞行前执行一次的被动变形机构和在飞行中连续执行的主动变形机构。这提高了飞行性能,使它有可能在一些不利的条件下飞行。与现有无人机相比,制造的无人机最基本的优越特征是其变形能力。
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引用次数: 1
The Mediating Role of Emotional Labor in Linking Organizational Learning and Organizational Identification in the Aviation Industry 情绪劳动在航空企业组织学习与组织认同之间的中介作用
Pub Date : 2023-05-30 DOI: 10.30518/jav.1273252
Duygu Uludağ, Melis Soyer, Merve Mert
In our study examined the mediating role of emotional labor in the effect of organizational learning on organizational identification. The purpose of the study is to measure the effect of organizational learning on organizational identification and to examine the mediating effect of emotional labor on the dimensions of learning. There are studies showing that organizational learning has a direct effect on organizational identification, but the mediating role of emotional labor has not been investigated. The population of the study was the employees of ground services in the aviation sector of the Marmara region, 400 employees were reached through random sampling and data were collected through questionnaires. According to the results of the study, all hypotheses were accepted and supported by the literature.
本研究考察了情绪劳动在组织学习对组织认同的影响中的中介作用。本研究的目的是测量组织学习对组织认同的影响,并检验情绪劳动对学习维度的中介作用。有研究表明,组织学习对组织认同有直接影响,但情绪劳动的中介作用尚未得到研究。研究对象为马尔马拉地区航空部门地勤人员,通过随机抽样的方式接触了400名员工,并通过问卷收集数据。根据研究结果,所有假设都被文献所接受和支持。
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引用次数: 0
Determining and Evaluating The Strategies of Air Cargo Freight Forwarders to Increase Business Volume with AHP Method 航空货运代理增加业务量策略的AHP确定与评价
Pub Date : 2023-05-19 DOI: 10.30518/jav.1262860
Filiz Mizrak, G. R. Akkartal
Air cargo forwarders plays an essential role in air cargo transportation process. They provide service providing communication between the stakeholders in the supply chain. However, there is a fierce competition in this sector due to huge number of companies. For this reason, this companies need to respond to changes in the globalization era by applying some strategies. In this scope, the aim of this study is to determine and weight the strategies that forwarders operating in the air cargo sector can implement to increase their business volumes, using the studies in the literature, interviews with 10 experts working in different forwarder companies in Turkey, and the AHP method. Although strategies for companies to increase their business volumes examined in various studies, there is no study specifically for 'Air cargo transport companies'. In addition, any study using the AHP method for the sector has not been found in the literature. In this context, the study is unique in terms of sectoral practice and methodology. The finding of the study suggests that staff trainings to improve customer relations is the most important criteria for air cargo freight forwarders.
航空货运代理在航空货运过程中起着至关重要的作用。他们提供服务,在供应链中的利益相关者之间提供沟通。然而,由于公司数量众多,这一领域的竞争非常激烈。因此,这些公司需要运用一些策略来应对全球化时代的变化。在这个范围内,本研究的目的是确定和权衡在航空货运部门运营的货运代理可以实施的策略,以增加他们的业务量,使用文献中的研究,采访10位在土耳其不同货运公司工作的专家,以及AHP方法。虽然各种研究都对公司增加业务量的策略进行了研究,但没有专门针对“航空货运公司”的研究。此外,在文献中尚未发现使用AHP方法对该部门进行研究。在这方面,这项研究在部门做法和方法方面是独一无二的。研究结果表明,员工培训以改善客户关系是航空货运代理最重要的标准。
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引用次数: 0
THE IMPORTANCE OF PERIODIC ORAL AND DENTAL EXAMINATION OF AVIATION PERSONNEL 航空人员定期口腔及牙科检查的重要性
Pub Date : 2023-05-15 DOI: 10.30518/jav.1275421
G. R. Bayar, Güneş Sanal, A. Demir, Dr. Öğr. Üyesi Şükrü Hakan Gündüz
The importance given to space and aviation science has increased with the advanced technological breakthroughs that made the 21st century to be called the "Space Age". As the aviation industry evolved, it was found that exposure to flight conditions and atmospheric pressure alterations has a variety of adverse effects on the physiological and psychological states of aviation personnel. There are several disorders that might cause medical incapacitations and thus jeopardize flight safety in such conditions. Oral, dental, and maxillofacial diseases are among those that, although manifesting locally, affect all bodily systems. For this reason, the diagnosis and treatment of such disorders should be thoroughly evaluated and carried out in accordance with aeromedical concerns. The purpose of this review is to emphasize the importance of periodic aeromedical examinations for the prevention of potential oral and dental health-related diseases, as well as medical issues of aviation personnel that require special attention in terms of flight safety.
随着先进技术的突破,使21世纪被称为“太空时代”,空间和航空科学的重要性日益增加。随着航空工业的发展,人们发现暴露于飞行条件和大气压力的变化对航空人员的生理和心理状态有各种不利影响。在这种情况下,有几种疾病可能导致身体丧失行为能力,从而危及飞行安全。口腔、牙齿和颌面疾病是那些虽然表现在局部,但影响所有身体系统的疾病之一。因此,对这类疾病的诊断和治疗应根据航空医学关切进行彻底评估和实施。本次审查的目的是强调定期航空医学检查对于预防潜在的口腔和牙齿健康疾病以及在飞行安全方面需要特别注意的航空人员医疗问题的重要性。
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引用次数: 0
期刊
The Journal of aviation medicine
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