Category: Engineering

Aircraft development under the Mass Properties Management perspective

Aircraft mass properties, such as weight, are established during aircraft conception. Those properties usually are subject to deviations during aircraft development, which leads to a reduction of the desired performance and rework in the development process. This study presents a proposal to reduce rework, keeping the planned performance, and resulting in higher project efficiency. Read More →

3D concrete printing and the structuration challenge for buildability

3D printing has been making its ground in several industrial applications, including the construction sector. As such technology advances in development and innovation, the idea that buildings could be built in a fully automated manner becomes increasingly feasible. In the industry, 3D concrete printing has been proving to be very promising, and viscosity-enhancing admixtures can play a key role in the success of the application. Read More →

Perspectives and scenarios in the airline sector during and after the COVID-19 pandemic

Interview with professor Tessaleno Devezas presents an original vision of why the surprise effect caused by the COVID-19 pandemic on the global economic system and the cause-effect reciprocity presented by the aeronautical sector as well. The researcher discusses possible scenarios and probable characteristics that involve the sector, presenting thoughts about how to face the socioeconomic situation during and after the crisis. Read More →

Environment design criteria: boosting efficiency and minimizing risks and costs in launch vehicle development

The influence of the Natural Environment is a factor that affects all phases of launch vehicle/aircraft design, development and operation. Factors such as wind, turbulence, temperature extremes, atmospheric density, ionizing radiation, meteors, space debris, plasma and events related to solar activity, among other environmental phenomena, represent constraints and specific requirements that must be taken into account from the beginning of the project development program for a launch vehicle, so that it presents maximum efficiency in fulfilling its mission. The application of environmental design criteria aims to minimize risks, reduce costs and obtain the best possible vehicle performance. Read More →

What it if rains? Research advances in weather forecasting during launching missions of the Brazilian Space Program

Study characterizes the precipitation events that can occur during the dry quarter in the region of the Alcantara Launch Center. Data collected over 37 years was used to confirm their average features and obtain the large-scale organization of the convective activity during higher precipitation events. The results presented could be helpful for short-term weather forecasting during launching missions. Read More →

Winds of change at the Alcantara launch center: study brings Brazilian Space Program another step ahead

The present article details an experiment using a scale model of the Launching Pad Area in a subsonic wind tunnel, using the particle image velocimetry (PIV) technique to collect results in different wind flow incidence configurations. The results identify the peculiarities of the region’s typical wind action, and its effects on launch structures and operations on one of the world’s most strategically located space launching bases. Read More →

Thermal Control: How to get the best results from satellite radiator system optimization?

With the successful case of the Amazon-I satellite, Brazilian scientists demonstrate an innovative solution in optimizing satellite thermal control through design, revealing the importance of a multifocal approach when studying the development of radiator systems, as these are fundamental. for the correct functioning of the devices and accuracy of the transmitted data. Read More →

Study compares experimental and numerical results of a supercritical airfoil behaviour in compressible flow

Research presents a contribution to the demanding field of studies on hot wire anemometry of the unsteady wake of a supercritical airfoil, based on experimental tests made on an ultrasonic wind tunnel and compared with a numerical study results. Read More →

Lightning strikes and ice accumulation: The use of conductive composite materials in challenging aviation solutions in review

An updated look through published studies that show the advantages brought by conductive nanostructures in effective solutions for on flight lightning current dispersion and surface deicing, minimizing the risk of accidents while improving flight efficiency through a low-weight, lower cost and lower maintenance system than others currently applied to aviation. Read More →

The impact of delays in customers satisfaction: Study brings light to one of the most competitive points of commercial aviation

Researchers analyze the on-time performance of the major airline company at the largest hub airport of United Kingdom. The results of the analysis show that their well-succeed system of delay/disruption management fulfills or exceeds the passengers’ expectations, lowering the negative impressions caused by such inconvenience, and keeping customers loyalty. Read More →