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Sep 23, 2022Open Access
This paper explores the concept of project management and applies two knowledge areas of project management: project time management and project resource management to a typical Blended Wing Unmanned Aerial Vehicle (BWB UAV) model design and development project. After several literature studies on this concept, it was observed to the best of research knowledge that few studies exist concerning the practical application of these two techniques on an aerial vehicle. This paper therefore practicall...
Mar 25, 2021Open Access
Carbon fiber-reinforced polymer (CFRP) large diameter hole drilling is certifiably not a broadly examined theme on account of their non-homogeneity and anisotropic highlights. In the scope of aerospace industrial uses of this material, thousands of holes have to be machined for purposes of assembly. The quality of this machined hole is influenced adversely by matrix grid cratering, thermal damage, spalling, surface delamination, and material debasement or fiber pullout. Among these different def...
Mar 20, 2019Open Access
The accurate shape of roller cavity surfaces is vital part for net-shape rolling. This paper presents a new design method of roller cavity surfaces with high accuracy for rolling compressor blades based on the geometrical inheritance and evolution of the net-shape profiles. Firstly, a process model of the blade is modeled by adding process allowance and locating basis at the CAD (Comput-er Aided Design) model of th ...
Apr 06, 2017Open Access
The samples of naphthenic base hydrocarbon fuel (kerosene fraction) and the samples prepared on their basis at the similar conditions with different degrees of oxidation were investigated. Following the oxidation for each sample reacted with a certain amount of oxygen various physical and chemical parameters were determined. The studies showed a significant effect of natural surfactants on water solubility. The possibility of form ...
May 31, 2016Open Access
We investigate solar sail in the circular restricted three-body problem,
where the larger primary is a source of radiation and the smaller primary is an
oblate spheroid in the system. Firstly, the differential equations of motion
for solar sail in the system combined effects of radiation and oblateness of
celestial bodies are built. Then the positions of the solar sail collinear
Lagrange points are calculated as mass ratio or obla ...
Jul 29, 2014Open Access
Remote sensing (RS) is the method making
possible of observing, recording and collecting of objects or features on the
Earth from distant places. There is no direct contact with the investigated
objects. It is reflecting radiation scattering from the Earth surface content
information in the form of wavelengths in different range of spectrum. Main
source of the information comes from satellites forming as space image. A
further step of the analyses of spa ...
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