Vega, which is being built by European industry under the leadership of ELV SpA (Italy), is a small launch vehicle designed to carry payloads in the range 300 kg to 2.5 tonnes into low Earth orbits. The typical reference for Vega’s launch capacity is to carry 1500 kg to a 700 km-altitude polar orbit. Vega will be particularly suitable for the launch of scientific and Earth observation missions.
During the launch of a rocket, vibrations occur due to engine ignition, the thrust of the engines and the high-speed flow of air over the body of the vehicle as it accelerates through the Earth’s atmosphere.
The upper composite that has just been tested is the top part of the launcher, which houses the navigation, communications and control equipment. The payload is carried on top of the composite, protected by a streamlined fairing, or nosecone. During testing, a mechanically representative model of a real satellite was used.
In order to confirm that the upper composite will be able to withstand the vibrations that it will experience during launch, it was mounted on the ‘multi-shaker’ in the Test Centre at ESTEC. This electrodynamic vibration table applied accelerations to the base of the composite while around 400 accelerometers and 40 strain gauges measured the movements and forces within the structure. This confirms that the design calculations are correct.
“The vibration tests went well and we are on schedule” said Vega Test Manager Wolfgang Teichert. “We have carried out most of the tests for the final stage of the launcher”.
At the end of 2006, reports on all the tests will be presented at the ‘Critical Design Review’. If Vega passes this ‘final exam’, production of components for the qualification flight launcher can proceed.
The fourth Vega industry day is taking place on Thursday 5 October 2006 at ESA-ESTEC and the adjacent Space Expo in Noordwijk, The Netherlands. All the space industry members committed to the Vega Small Launcher programme are involved. The industry day is an occasion for all participants in the Vega programme to share an overview of the key technical and programmatic achievements in the development activities being carried out under the responsibility of the three main industrial contractors for the Vega programme:Vitrociset SpA (Italy) – ground segment
Miguel Lopez | alfa
SF State astronomer searches for signs of life on Wolf 1061 exoplanet
20.01.2017 | San Francisco State University
Molecule flash mob
19.01.2017 | Technische Universität Wien
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.
As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
20.01.2017 | Awards Funding
20.01.2017 | Materials Sciences
20.01.2017 | Life Sciences