AkuSens

Sensor network node for the assessment of constructional elements in vehicles by acoustic monitoring techniques

Duration

June 2009 – November 2012

Abstract

In AkuSens energy self-sufficient wirelessly linked sensor nodes and methods for vehicle monitoring were developed and tested in various applications.
Wölfel focused in its sub-project “Application of a SHM system in a rail vehicle for passenger transport” on analysis methods for health monitoring of a locomotive. Also the axis of a freight car was monitored. In addition to laboratory experiments data were acquired during a test run over several months and compared to simulation results.
Before AkuSens linear-static FEM calculation was state of the art in simulations of rail vehicles. In multi-body simulations rigid bodies and spring-damper elements were used. By this approach torsion modes of the rail vehicles and other effects cannot be determined with sufficient precision.
Due to this reason a detailed FEM-Model of the locomotive was built and statically and dynamically calculated with SIMULIA/Abaqus. As next step a static and dynamic condensation of the mass- and stiffness-matrices was performed and imported in SIMPACK. By integration of these flexible bodies into the multi-body simulation with SIMPACK Rail, the dynamics of the Lok 189 could be reproduced realistically in a MKS simulation.

Consortium

  • AUCOTEAM GmbH, Berlin
  • Cideon Engineering GmbH, Bautzen
  • Fraunhofer-Institut fuer zerstörungsfreie Prüfverfahren (IZFP-D)
  • Hörmann IMG GmbH, Nordhausen
  • ITL Eisenbahngesellschaft mbH, Dresden
  • RHe Microsystems GmbH, Radeberg
  • Siemens Aktiengesellschaft, Berlin and Munich

Funding details


Project management agency

  • VDI/VDE – IT

Publications

Kraemer, P.; Friedmann, H.; Feldbausch, E. and Seidel, A.: 2016, Wavelet-Analysis of the coupled Simpack-Abaqus-Simulation (MBS using flexible bodies) of a Locomotive; lecture during NAFEMS-Conference 2016, 25–27 April 2016, Bamberg