This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Opening Distortion Fingerprint (ODF) - A New Body Evaluation Method for Perceived Quality and Vehicle Dynamics
Technical Paper
2022-01-0950
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The body performance of an electrical vehicle is significantly affected by the structural integration of the stiff battery package. In addition, the body topology of future electrical vehicles/mobility solutions will differ clearly from conventional ones, e.g. no B-pillar. This makes the current body requirement such as static torsional stiffness less relevant.
In order to meet the new challenges during the virtual development phase a new body evaluation method has been developed. The method uses the dynamic distortion in all openings in a complete vehicle setup to calculate the so-called Opening Distortion Fingerprint (ODF). The ODF evaluation is performed in time and frequency domain. The application of this new method is shown in both test and simulation.
There are two main areas of application. One of them is Perceived Quality where the ODF can be used as a new body assessment criterion. This also includes the calculation of an equivalent static load (ESL) based on the ODF, which can be used for optimization purposes. The second area is Vehicle Dynamics. The ODF, together with the operating deflection shape (ODS) enables a deeper analysis of the interaction between the wheel suspension/drive line and the body. A test example is presented where a dominant pitch mode of the drive line could be predicted based on the ODF and then confirmed by the ODS.
Authors
Topic
Citation
Weber, J., Jönsson, V., Hansson, L., Varela, R. et al., "Opening Distortion Fingerprint (ODF) - A New Body Evaluation Method for Perceived Quality and Vehicle Dynamics," SAE Technical Paper 2022-01-0950, 2022, https://doi.org/10.4271/2022-01-0950.Also In
References
- Kavarana , F. and Rediers , B. Squeak and Rattle - State of the Art and Beyond SAE Technical Paper 1999-01-1728 1999 https://doi.org/10.4271/1999-01-1728
- Kuo , E. and Chen , F. Development of Squeak and Rattle Countermeasures Through Up-Front Designs Automotive Buzz, Squeak and Rattle 10.1016/B978-0-7506-8496-5.00011-7
- Weber , J. and Benhayoun , I. Squeak&Rattle Correlation in Time Domain using the SAR-LINE™ Method SAE Technical Paper 2012-01-1553 2012 https://doi.org/10.4271/2012-01-1553
- Weber , J. and Benhayoun , I. Squeak & Rattle Simulation - A Success Enabler in the Development of the New Saab 9-5 Cockpit without Prototype Hardware SAE Int. J. Passeng. Cars - Mech. Syst. 3 1 2010 936 947 10.4271/2010-01-1423
- Uhlar , S. Hybrid Simulation of Structure-Borne Road Noise ATZ worldwide 01/202 50 55
- Pakiman , A. , Moridnejad , M. , Bazine , S. , Sällström , Å. et al. Relative Displacement in Closure Gaps due to Random Excitation - Correlating Test and Simulation Using a 3D Laser Vibrometer and the E-LINE Method VDI-Berichte Nr. 2224 2014
- Bazine , S. 2014
- Wirje , A. and Carlsson , K. Modeling and Simulation of Peak Load Events using Adams - Driving Over a Curb and Skid Against a Curb SAE Technical Paper 2011-01-0733 2011 https://doi.org/10.4271/2011-01-0733
- Khansari , R. , Wardi , Y. , Fritzell , M. , Jönsson , V. et al.
- Jacobsson , C. and Jörud , A. 2018
- Sarkis , K.N. and Zaben , M. 2019
- Schwarz , B. , Richardson , M.H. Measurements Required for Displaying Operating Deflection Shapes Proceedings of IMAC XXII January 26, 2004
- Jönsson , V. and Weber , J. 2020 https://fast.wistia.net/embed/iframe/vqi4h6v8u7
- Weber , J. , Jönsson , V. 2020 https://fast.wistia.net/embed/iframe/pqt193wzuv