ESA Parabolic Flights, Drop Tower and Centrifuge Opportunities for University Students

Callens, Natacha; Ventura-Traveset, Javier; Lophem, Thomas-Louis de; Echazarreta, Carlos Lopez de; Pletser, Vladimir; Loon, Jack J. W. A. van

doi:10.1007/s12217-010-9181-1

Cited by 27 publications

(22 citation statements)

References 4 publications

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“…The experiment flew in the 65th ESA Parabolic Flight Campaign as part of the 2016 Fly Your Thesis! programme (Callens et al 2011(Callens et al , 2016. Although not all of the fluid configurations behaved as expected, the experiment was successful in many ways.…”

Section: Preliminary Resultsmentioning

confidence: 79%

The CFVib Experiment: Control of Fluids in Microgravity with Vibrations

Fernández

Sánchez

Porter

et al. 2017

Microgravity Sci. Technol.

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The Control of Fluids in Microgravity with Vibrations (CFVib) experiment was selected for the 2016 Fly Your Thesis! programme as part of the 65th ESA Parabolic Flight Campaign. The aim of the project is to observe the potentially complex behaviour of vibrated liquids in weightless environments and to investigate the extent to which smallamplitude vibrations can be used to influence and control this behaviour. Piezoelectric materials are used to generate high-frequency vibrations to drive surface waves and largescale reorientation of the interface. The theory of vibroequilibria, which treats the quasi-stationary surface configurations achieved by this reorientation, was used to predict interesting parameter regimes and interpret fluid behaviour. Here we describe the scientific motivation, objectives, and design of the experiment.

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Section: Preliminary Resultsmentioning

confidence: 79%

The CFVib Experiment: Control of Fluids in Microgravity with Vibrations

Fernández

Sánchez

Porter

et al. 2017

Microgravity Sci. Technol.

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“…For this purpose the inner surface of the drag-shield cylinder incorporates a vertical scale which allows the determination of the relative movement between the drag-shield and the experiment platform during the drop. In addition, the vertical gap between both elements, drag-shield and experiment platform, was reduced to 70 mm, so that, according to expression (8), the experimental platform would impact with the damping foam housed inside the drag-shield around one second after release ( figure 8). …”

Section: Resultsmentioning

confidence: 99%

Surface tension and microgravity

et al. 2014

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The behaviour of confined liquids on board an orbiting spacecraft is mainly driven by surface tension phenomena, which cause an apparently anomalous response of the liquid when compared with the behaviour that can be observed on an Earth laboratory provided that the amount of liquid is high enough. The reason is that in an orbiting spacecraft the different inertial forces acting on the bulk of the liquid are almost zero, causing thus capillary forces to be the dominant ones. Of course, since gravity forces are proportional to the liquid volume, whereas surface tension forces are proportional to the liquid surface, there are situations on Earth where capillarity can be the dominant effect, as it happens when very small volume liquid samples are considered. However, work with small size samples may require the use of sophisticated optical devices. Leaving aside the neutral buoyancy technique, a way of handling large liquid interfaces is by using drop towers, where the sample falls subjected to the action of Earth's gravity. This approach is suitable when the characteristic time of the problem under consideration is much smaller than the drop time. In this work the transformation of an out-of-use chimney into a drop tower is presented. Because of the miniaturization, hardiness and low cost of current electronic devices, a drop tower can be used as an inexpensive tool for undergraduate students to experimentally analyse a large variety of surface tension driven phenomena.

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“…The mechanical system of the device uses the spring and the strings system to solve the problem of the leveling and lock condition to eliminate the gap, which can provide a guarantee for the stability work of the system. This machinery uses a combination of rigid joint and hinge joint to solve the big span installation problem [4].…”

Section: Introductionmentioning

confidence: 99%

Stiffness Analysis of General Folding Frame of Mobile Solar Wing of Inverted Type

Ji¹,

Yuan²

2017

dtetr

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Abstract. The simulation experiment on the solar wings, under the situation of zero gravity, is an important part of the satellite's ground work. With the development of space station and deep space exploration technology, the fold-expanding solar wing is being used more frequently, and there are higher requirements for its quality. As a result, the demand of the simulation experiment, which the solar wings worked on the ground with no gravity, also increase. In order to facilitate the comprehensive utilization of the test device, save space and improve the flexibility and speed of the test equipment, a new test device is provided, which is used for the unfoldment of mobile, retractable solar wings, working on the ground under zero gravity. In this paper, the calculation method for stiffness analysis is also given.

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ESA Parabolic Flights, Drop Tower and Centrifuge Opportunities for University Students

Cited by 27 publications

References 4 publications

The CFVib Experiment: Control of Fluids in Microgravity with Vibrations

The CFVib Experiment: Control of Fluids in Microgravity with Vibrations

Surface tension and microgravity

Stiffness Analysis of General Folding Frame of Mobile Solar Wing of Inverted Type

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