TY - CONF A1 - Rücker, Werner A1 - Auersch, Lutz ED - Müller, G. T1 - Praxisgerechtes Prognosemodell für Erschütterungen PY - 2008 SP - 37 EP - 47 AN - OPUS4-19042 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz A1 - Knothe, Esther A1 - Makris, Ralf A1 - Kretzschmar, Enrico A1 - Rücker, Werner A1 - Said, Samir T1 - Numerical study of mitigation measures at track: results for the sleeper, sleeper pads and the substructure T2 - RIVAS Training Workshop CY - Berlin, Germany DA - 2013-05-22 PY - 2013 AN - OPUS4-29186 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - JOUR A1 - Auersch, Lutz T1 - Neue Aufgaben beim Erschütterungsschutz PY - 1984 SN - 0722-8562 SN - 0041-6347 VL - 84 IS - 2 SP - 38 EP - 39 PB - Umschau Verl. Breidenstein CY - Frankfurt, M. AN - OPUS4-11498 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Mitigation measures for slab tracks - analysis of elastically supported wide sleepers on asphalt slabs T2 - RIVAS WP 3.4 Meeting CY - Berlin, Germany DA - 2012-04-17 PY - 2012 AN - OPUS4-25782 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - RPRT A1 - Auersch, Lutz T1 - Mitigation measures for ballasted tracks - sleepers, sleeper pads and substructure - Results from the finite element boundary element method N2 - The ground vibrations, which are generated by trains on different tracks, have been calculated by finite-element boundary-element models. The ballasted track is modelled in detail by the finite element method. The infinite soil is modelled by the boundary element method as a homogeneous or layered half-space. The track-soil system is coupled with a simple rigid mass model of the vehicle so that the vehicle-track interaction is completely included. Transfer functions are calculated in frequency domain without and with vehicle-track interaction, the compliance of the track and the mobilities of the soil at different distances from the track. Finally, the ratios between the ground vibration amplitudes with and without mitigation measure are calculated to quantify the effectiveness of the mitigation measure. Tracks with under sleeper pads have been investigated in a wide parameter study. The main parameters that influence the reduction of ground vibration are the stiffness of the under sleeper pad, the mass and the width of the sleeper. The softest sleeper pad yields the best reduction of the ground vibration. The influence of the sleeper mass is not as strong as the characteristic frequency is ruled by the mass of the sleeper and the mass of the wheelset as well. The influence of other parameters has been examined. The stiffness of the rail pads, the bending stiffness of the track, the stiffness of the ballast, the sub-soil, and the soil, and the layering of the soil. All these parameters show no or only a minor influence on the mitigation effect. As the standard isolated track, a track with an under sleeper pad of a stiffness of kS = 5 107 N/m has been chosen, which can also be expressed as a stiffness per area of kS ’’ = 7.4 107 N/m3 = 0.074 N/mm3. The resonance frequency for this pad stiffness is observed between 32 and 40 Hz. The reduction of the ground vibration is about vi,I /vi,U = 0.2 and 0.1 at 100 Hz. The reduction can be improved by softer sleeper pads. But the compliance of the track gets higher than tolerable. A possibility to use softer sleeper pads without increasing the static compliance of the track is their combination with wide sleepers. The softer sleeper pads under wider sleepers yield the same compliance of the track and a better reduction of the ground vibration. KW - Heavy sleeper KW - Under sleeper pad KW - Finite-element boundary-element method KW - Mitigation KW - Ground vibration KW - Ballasted track PY - 2011 SP - 1 EP - 81 PB - Bundesanstalt für Materialforschung und -prüfung (BAM) CY - Berlin AN - OPUS4-56607 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz A1 - Knothe, Esther A1 - Makris, Ralf A1 - Kretzschmar, Enrico A1 - Said, Samir A1 - Rücker, Werner T1 - Mitigation measures for ballasted tracks - optimisation of sleepers, sleeper pads and the substructure T2 - International Workshop on Railway Noise and Vibration CY - Uddevalla, Sweden DA - 2013-09-09 PY - 2013 AN - OPUS4-29620 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz A1 - Rücker, Werner A1 - Said, Samir T1 - Mitigation measure for the wave propagation at a Swiss site T2 - RIVAS WP 4 Meeting CY - Munich, Germany DA - 2012-08-27 PY - 2012 AN - OPUS4-27128 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Minderung von Eisenbahnerschütterungen - Vergleich verschiedener besohlter Schwellen T2 - RIVAS WP 3.2 Meeting CY - Frankfurt am Main, Germany DA - 2012-03-29 PY - 2012 AN - OPUS4-25781 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Auersch, Lutz T1 - Methoden und Phänomene der Gebäudedynamik - Baugrund-, Fundament- und Deckenschwingungen T2 - VDI-Tagung "Baudynamik" CY - Kassel, Germany DA - 2006-05-17 PY - 2006 AN - OPUS4-13747 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Auersch, Lutz T1 - Methoden und Phänomene der Gebäudedynamik - Baugrund-, Fundament- und Deckenschwingungen T2 - Messunsicherheit praxisgerecht bestimmen : Grundlagen, Praxisbeispiele CY - Kassel, Germany DA - 17.05.2006 PY - 2006 SN - 3-18-091947-7 N1 - Serientitel: VDI-Berichte – Series title: VDI-Berichte IS - 1941 SP - 761 EP - 765 PB - VDI-Verl. CY - Düsseldorf AN - OPUS4-14051 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -