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Dynamic Response of the Inertial Platform of the Laser ELI-NP Magurele-Bucharest Facility

Author

Listed:
  • Calin Itu

    (Department of Mechanical Engineering, Transilvania University of Brasov, B-dul Eroilor, 20, 500036 Brasov, Romania)

  • Polidor Bratu

    (Institute of Solid Mechanics of Romanian Academy, Str. Constantin Mille nr. 15, 010141 Bucharest, Romania
    Romanian Academy of Technical Sciences, B-dul Dacia 26, 030167 Bucharest, Romania)

  • Nicusor Dragan

    (Faculty of Engineering, Braila, Dunarea de Jos University of Galati, Strada Domnească nr. 47, 800008 Galati, Romania)

  • Adrian Goanță

    (Faculty of Engineering, Braila, Dunarea de Jos University of Galati, Strada Domnească nr. 47, 800008 Galati, Romania)

  • George Lucian Nicolae

    (Institute of Solid Mechanics of Romanian Academy, Str. Constantin Mille nr. 15, 010141 Bucharest, Romania)

  • Marilena Cristina Nițu

    (Institute of Solid Mechanics of Romanian Academy, Str. Constantin Mille nr. 15, 010141 Bucharest, Romania)

  • Paul Nicolae Borza

    (Department of Mechanical Engineering, Transilvania University of Brasov, B-dul Eroilor, 20, 500036 Brasov, Romania)

  • Sorin Vlase

    (Department of Mechanical Engineering, Transilvania University of Brasov, B-dul Eroilor, 20, 500036 Brasov, Romania
    Romanian Academy of Technical Sciences, B-dul Dacia 26, 030167 Bucharest, Romania)

Abstract

Previous studies on the vibrational behavior of the inertial platform installed at ELI-NP, in Magurele-Bucharest have reported eigenfrequencies in the domain in which excitations can occur from earthquakes which manifests itself periodically in this geographical area. The paper aimed to study the vibrational response that may occur, due to human activities or natural phenomena (earthquakes), at the inertial platform of the Laser + Gamma building within the ELI-NP complex. The large mass of the platform, 54,000 tons in full condition, must ensure that the experiments are carried out without being disturbed by unwanted vibrations. The laser and gamma beam must be very precisely positioned and the shocks and vibration from the external environment must be damped or absorbed. To realize this, the behavior of the inertial concrete platform at external excitations was studied based on a model with finite elements. The response to the forced vibrations of the platform and the possible behavior in case of an earthquake were obtained.

Suggested Citation

  • Calin Itu & Polidor Bratu & Nicusor Dragan & Adrian Goanță & George Lucian Nicolae & Marilena Cristina Nițu & Paul Nicolae Borza & Sorin Vlase, 2022. "Dynamic Response of the Inertial Platform of the Laser ELI-NP Magurele-Bucharest Facility," Mathematics, MDPI, vol. 10(12), pages 1-17, June.
    • Handle: RePEc:gam:jmathe:v:10:y:2022:i:12:p:2104-:d:841089
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