15.05.2017

Acoustic engineers from AGH UST in Krakow take part in project of European Space Agency


The project is participated in by the scientists and researchers of AGH UST, the Space Research Centre of the Polish Academy of Sciences, and the Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences in Warsaw; photo by Maciej Bernaś, AGH UST Krakow Student Photo Agency

The reverberation chamber and the high-power loudspeakers capable of generating noise of the order of 142 dB; photo by Maciej Bernaś, AGH UST Krakow Student Photo Agency

At the AGH UST Laboratory of Technical Acoustics, the scientists carried out tests of the specialist filter; photo by Maciej Bernaś, AGH UST Krakow Student Photo Agency

The scientists of the AGH University of Science and Technology are working on limiting the destructive influence of the sound wave created during the launch of a rocket. Designing a suitable filter will allow to protect sensitive scientific research equipment. 

The scientists of the Department of Mechanics and Vibroacoustics at the Faculty of Mechanical Engineering and Robotics carry out the research within the framework of the international project of the European Space Agency ATHENA. On behalf of AGH UST, work in coordinated by professor Tadeusz Kamisiński. The main aim of the project is to send into orbit a new generation X-ray telescope by the year 2028. The work is participated in by the scientists and researchers of AGH UST, the Space Research Centre of the Polish Academy of Sciences, and the Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences in Warsaw. 

In the first place, the main task of the AGH UST scientists is the minimisation of the acoustic pressure created during the launch of a rocket. The acoustic engineers are developing a shield that will protect the most sensitive part of the equipment, i.e. the filter of the X-ray telescope. 

The meetings of the research groups working on particular problems take place regularly at the scientific centres participating in the programme. The AGH UST Laboratory of Technical Acoustics have already carried out tests for different configurations of the filter shield at a gradually increasing level of the acoustic pressure. Apart from the scientists and researchers from AGH UST, the Space Research Centre of the Polish Academy of Sciences, and the Nicolaus Copernicus Astronomical Centre of the Polish Academy of Sciences in Warsaw, the research tasks were also participated in by scientists from Germany and Italy. The tests consisted in checking the influence of the noise generated during the launch of a rocket on one of the elements of the X-ray telescope. The shield with the filter were exposed to the acoustic pressure in the reverberation chamber, where with the use of special loudspeaker sets, a noise level of 142 dB was generated. During the tests, the filter was not damaged, which means that it fulfils the desired requirements. The next step will be tests aiming at the reduction of the filter weight and the improvement of fastening the shield.