Journal of Aerospace Engineering and Mechanics最新文献_第2页

Three-Dimensional Computational Fluid Dynamic Analysis of a Large-Scale Vertical Axis Wind Turbine 大型垂直轴风力机三维计算流体动力学分析

Journal of Aerospace Engineering and Mechanics Pub Date : 2021-05-22 DOI: 10.36959/422/454

H. Brian

引用次数: 1

"Quantifying the Unquantifiable" in Aerospace Electronics and Ergonomics Engineering: Review 航空电子与人机工程:“量化不可量化”综述

Journal of Aerospace Engineering and Mechanics Pub Date : 2020-12-09 DOI: 10.36959/422/449

S. E

{"title":"\"Quantifying the Unquantifiable\" in Aerospace Electronics and Ergonomics Engineering: Review","authors":"S. E","doi":"10.36959/422/449","DOIUrl":"https://doi.org/10.36959/422/449","url":null,"abstract":"The today’s efforts of aerospace system engineers, not to mention human psychologists, to assure adequate operational reliability of electronic-and-photonic (E&P) products and satisfactory success-and-safety of a mission or of an extraordinary situation, are, as a rule, based on more or less trustworthy statistics and on what is known as best practices. These efforts are typically unquantifiable, i.e. do not end up with numerical data that enable comparing different possible scenarios of the outcome of a planned undertaking. The objective of this review is to show, using examples from different and sometimes even unconnected areas of aerospace E&P and ergonomics engineering, how probabilistic predictive modeling (PPM) geared to a carefully designed, thoroughly conducted and adequately interpreted highly-focused and highly cost effective failure-oriented accelerated testing (FOAT) can be employed to quantify what is typically considered as “unquantifiable”, i.e., to evaluate the lifetime and the corresponding probability of failure (PoF) of an aerospace E&P system, and/or the role of the human factor (HF), and to predict the outcome of a human-in-the-loop (HITL) related mission or an extraordinary situation, when equipment’s reliability (both hard- and software) and human performance contribute jointly to the never-zero PoF of a mission or an extraordinary situation. The reader is not expected to necessarily “connect the dots”, associated with different situations and examples provided. The only, but an important, feature that these examples have in common is that many aerospace system and ergonomics engineering related tasks and problems, which are perceived and treated today as unquantifiable, could and, in the author’s opinion, should be quantified to assure safe and successful outcome of a particular aerospace undertaking of importance.","PeriodicalId":130516,"journal":{"name":"Journal of Aerospace Engineering and Mechanics","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132335236","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

Public Perception of Drones… or Should that be Remotely Piloted Aircraft Systems? 公众对无人机的看法……还是应该是远程驾驶飞机系统?

Journal of Aerospace Engineering and Mechanics Pub Date : 2019-09-07 DOI: 10.36959/422/438

G. Wild, J. Murray, Ayiei Ayiei, M. Eqbal, Eranga Batuwangala

引用次数: 2

Predicted Useful Lifetime of Aerospace Electronics Experiencing Ionizing Radiation: Application of BAZ Model 电离辐射下航天电子设备使用寿命预测:BAZ模型的应用

Journal of Aerospace Engineering and Mechanics Pub Date : 2019-04-25 DOI: 10.36959/422/437

A. Ponomarev, E. Suhir

{"title":"Predicted Useful Lifetime of Aerospace Electronics Experiencing Ionizing Radiation: Application of BAZ Model","authors":"A. Ponomarev, E. Suhir","doi":"10.36959/422/437","DOIUrl":"https://doi.org/10.36959/422/437","url":null,"abstract":"The objective of the analysis is to demonstrate how the Boltzmann-Arrhenius-Zhurkov (BAZ) model, originally suggested by Zhurkov in the kinetic concept of the strength of solids as a generalization of the Arrhenius theory of chemical reactions, can be effectively employed for the prediction of the lifetime of electronic materials experiencing ionizing radiation. The “loading term” γσ in the original BAZ model, where σ is the tensile mechanical stress and γ is the sensitivity factor, is replaced with the term γRD, where D is the radiation level and γR is the sensitivity factor. Leakage current measured during the failure-oriented-accelerated-testing (FOAT) is considered in our analysis as a suitable indication/criterion of the level of the induced damage. FOAT terminates, when the agreed upon critical value of the leakage current is reached. Citation: Ponomarev A, Suhir E (2019) Predicted Useful Lifetime of Aerospace Electronics Experiencing Ionizing Radiation: Application of BAZ Model. J Aerosp Eng Mech 3(1):167-169 Ponomarev and Suhir. Dermatol Arch 2019, 3(1):167-169 Open Access | Page 168 | Here T is the testing temperature. In such a situation the factor γI does not affect the factor γR. Finally, after the sensitivity factors γI and γR are evaluated, the activation energy can be found as","PeriodicalId":130516,"journal":{"name":"Journal of Aerospace Engineering and Mechanics","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123546926","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: 4

Review of Structural Issues in the Design of a Box Wing Aircraft 箱翼飞机结构设计问题综述

Journal of Aerospace Engineering and Mechanics Pub Date : 2019-04-04 DOI: 10.36959/422/436

P. Jemitola, P. Okonkwo

引用次数: 4

Design and CFD Analysis of a Blended Wing UAV (A Conceptual Design) 混合翼无人机设计与CFD分析(概念设计)

Journal of Aerospace Engineering and Mechanics Pub Date : 2019-01-25 DOI: 10.36959/422/435

Khan Tayyab

引用次数: 5

Photon Mass 光子质量

Journal of Aerospace Engineering and Mechanics Pub Date : 2018-06-06 DOI: 10.21694/2572-2921.18001

Orlov Sa

{"title":"Photon Mass","authors":"Orlov Sa","doi":"10.21694/2572-2921.18001","DOIUrl":"https://doi.org/10.21694/2572-2921.18001","url":null,"abstract":"The nature of light has been studied by scientists since the Renaissance. According to some scientists, light had a wave nature. Others defended the corpuscular theory of the origin of light. To the founders of the wave theory, in the first place, should be attributed Rene Descartes. He represented light as a disturbance in the world substance [1]. The founder of the corpuscular theory was Pierre Gassendi [2]. The same point of view was followed by Isaac Newton [3]. Later, the wave theory of light was investigated by Robert Hooke [4] and Christian Huygens [5]. Thomas Jung [6] in the early 19 th century, his experiments with diffraction received evidence for the recognition of the wave theory. In his opinion, different colors correspond to different wavelengths. In 1817 the wave theory of light was followed by Augustin Fresnel in 1817 [7]. When considering the problem of thermal equilibrium of an absolutely black body, Max Planck [8] formulated his idea of the emission of light by portions light quanta, which were called photons. Experiments of Malus and Bio [9] with polarization provided, as it seemed then, convincing evidence in favor of corpuscular theory and against the wave theory. In quantum mechanics, the idea of Dui de Broglie [10] about corpuscular-wave dualism was confirmed.","PeriodicalId":130516,"journal":{"name":"Journal of Aerospace Engineering and Mechanics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133157065","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

Cylindrical Panel Like Response of Fully Surface Parallel Restrained Simply Supported Hyperbolic Paraboloidal Thick General Cross-ply Panels 全面平行约束简支双曲抛物面厚通用交叉铺层板的柱面类板响应

Journal of Aerospace Engineering and Mechanics Pub Date : 1900-01-01 DOI: 10.36959/422/459

A. Reaz Chaudhuri, A. Sinan Oktem

引用次数: 2

Numerical and Experimental Study of Liquid Cryogenic Jet around a Space Plane and Its Ignition Risk 航天飞机周围液体低温射流及其着火危险性的数值与实验研究

Journal of Aerospace Engineering and Mechanics Pub Date : 1900-01-01 DOI: 10.36959/422/458

Dougal J, G. P., W. M., A. T., Dutheil Jp, B. Y.

引用次数: 0

Predicted Low-Cycle-Fatigue Lifetime of Solder Joint Interconnections: Application of Hall's Approach and Boltzmann-Arrhenius-Zhurkov (Baz) Model 焊点互连低周疲劳寿命预测:霍尔方法和Boltzmann-Arrhenius-Zhurkov (Baz)模型的应用

Journal of Aerospace Engineering and Mechanics Pub Date : 1900-01-01 DOI: 10.36959/422/460

S. E

引用次数: 1