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Experimental Characterization and Dynamic Modelling of Electrical Cables
ISSN: 0148-7191, e-ISSN: 2688-3627
Published June 15, 2022 by SAE International in United States
Annotation ability available
Event: 12th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference
Electric high voltage (HV) cables are commonly used in electrified vehicles. These cables are well known for being potential flanking transmission paths for structure-borne sound in a broad frequency range and must therefore be included in the NVH design process. Although many different layouts exist automotive HV cables fundamentally exhibit a layered structure consisting of a conductive core covered by, in sequence, an isolating sheath, a wire mesh shield to minimize electromagnetic interference and an outer jacket. The conductive core consists of hundreds of thin copper or aluminum wires organized in strands which are wound in a helical pattern. An extensive measurement campaign was carried out to dynamically characterize different cable specimen in terms of multi-degree of freedom transfer impedances. It was shown that although the cable exhibits a direction-dependent Young’s modulus and loss factor suitable results could be obtained by modelling the conductive core using an isotropic multi-layer continuum model. The model was experimentally validated for a test case featuring strong dynamic coupling and showed encouraging results until 2 kHz.
CitationNijman, E., Buchegger, B., Böhler, E., and Rejlek, J., "Experimental Characterization and Dynamic Modelling of Electrical Cables," SAE Technical Paper 2022-01-0952, 2022.
- Cardou , A. and Jolicoeur , C. Mechanical Models of Helical Strands Appl. Mech. Rev. 50 1 1997 1 14
- Hong , K.J. , Kiureghian , A.D. , and Sackman , J.L. Bending Behavior of Helically Wrapped Cables Journal of Engineering Mechanics 131 2005 500 511
- Inagaki , K. , Ekh , J. , and Zahrai , S. Mechanical Analysis of Second Order Helical Structure in Electrical Cable International Journal of Solids and Structures 44 2007 1657 1679
- Argatov , I. Response of Wire Rope Strand to Axial and Torsional Loads: Asymptotic Modeling of the Effect of Interwire Contact Deformations International Journal of Solids and Structures 48 2011 1413 1423
- Spark , K. , Agnes , G. , and Inman , D. Cable Modelling and Internal Damping Developments Applied Mechanics Reviews 65 2013