Reliability-based dynamical design of a singular structure for high energy physics experiments

• Autorzy: Palma R. , Torrent J. , Pérez-Aparicio J. L. , Ripoll L.

Identyfikatory

DOI

10.1016/j.acme.2017.07.003

• Języki publikacji: EN

Abstrakty

EN

The present work presents a comprehensive design and dynamic calculation of singular metallic structures, part of the Neutrino Experiment NEXT. The experiment uses an electroluminescent TPC chamber, a high-pressure 136Xe gas vessel enclosing the detector. A lead-block “castle” or containing box shields this vessel against external γ-rays from all directions; in spite of its heavy weight, the castle must be regularly open for the detector maintenance. Since the structures will be constructed at a middle-level seismic localization (Laboratorio Subterráneo Canfranc, Spain), the earthquake hazard must be taken into account. Vessel and castle are supported by a rigid frame, which must satisfy two requirements: (i) the Spanish seismic standard, (ii) for equipment protection, the detector maximum horizontal acceleration must be <1 [m/s2]. This frame rests on special base isolators to decrease horizontal accelerations in case of an earthquake. Three dynamical calculations are conducted: (i) a response spectrum analysis to comply with the standard, (ii) five time-history analyses to calculate tolerances and, (iii) a reliability-based approach using 1000 time-history responses to ensure satisfaction of the operating requirements. The final outcome is the design of a singular structure optimized for the NEXT experiment with a probability of failure against any standard earthquake of only 0.125%.

Słowa kluczowe

EN

singular metallic structure; seismic devices; response spectrum analysis; time-history analysis; reliability-based approach

PL

struktura metalu; niezawodność; badania sejsmiczne

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2018
• Tom: Vol. 18, no. 1
• Strony: 256--266
• Opis fizyczny: Bibliogr. 18 poz., rys., tab., wykr.

Twórcy

autor

Palma R.

• Department of Mechanical Engineering and Construction, Universitat Jaume I, Avda Sos Baynat, s/n, 12071 Castellón de la Plana, Spain

autor

Torrent J.

• Enginyeria Mecànica i de la Construcciò Industrial, Universitat de Girona, Spain

autor

Pérez-Aparicio J. L.

• Mecánica de Medios Continuos y Teoría de Estructuras, Universitat Politècnica de València, Spain

autor

Ripoll L.

• Enginyeria Mecànica i de la Construcciò Industrial, Universitat de Girona, Spain

Bibliografia

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• [9] L.-Y. Lu, G.-L. Lin, Predictive control of smart isolation system for precision equipment subjected to near-fault earthquakes, Engineering Structures 30 (2008) 3045–3064.
• [10] H. Gavin, A. Zaicenco, Performance and reliability of semi-active equipment isolation, Journal of Sound and Vibration 306 (2007) 74–90.
• [11] Eurocode 3, Design of steel structures, The European Standard.
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• [13] COMSOL, COMSOL multiphysics 3.3a documentation.
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• [15] M. Dolce, D. Cardone, F. Croatto, Frictional behavior of steel- PTFE interfaces for seismic isolation, Bulletin of Earthquake Engineering 3 (2005) 75–99.
• [16] R. Palma, G. Rus, R. Gallego, Probabilistic inverse problem and system uncertainties for damage detection in piezoelectrics, Mechanics of Materials 3 (2005) 1000–1016.
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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018)