Advertisement

Application of an Experimental Tire Model for Comfort Analysis: Requirement for Accurate Low Frequency Tire-Patch Inputs

  • Alessandro Lepore
  • Theo Geluk
  • Massimiliano Gobbi
  • Ben MeekEmail author
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 201)

Abstract

Physically correct and invariant inputs are important in vehicle development to perform virtual optimization at the suspension or body-level. These inputs can be applied to vehicle models in order to predict interior vibration or noise-levels and evaluate NVH performances without having a physical prototype. The applied inputs can be wheel-center loads or, even more invariant, tire-patch displacements. These tire-patch inputs, applied to a tire model, allow accurate predictions up to 300 Hz. A limitation of this approach however, is that no accurate inputs can be obtained at lower frequencies, therefore application for comfort analysis is not possible. In this study it is investigated if the low-frequency quality loss in the input identification is related to the measurement approach, the data post-processing steps, or non-linearities in the tire or suspension. An alternative measurement setup including the use of strain-sensors is evaluated and compared with the original acceleration-based methodology. A comparison of predicted target vibrations at the seat rail as well as obtained inputs is presented for the different methods. The results indicate that the proposed alternative methodology increases the quality of the estimated inputs in the low-frequency region. With these improved low-frequency inputs, the methodology of using tire-patch displacements as inputs to hybrid models can now also be applied for lower frequency (ride, comfort) applications.

Keywords

NVH tire model Tire-patch input identification Transfer path analysis 

Notes

Acknowledgments

We gratefully acknowledge IWT Vlaanderen for their support of the project IWT-090408 “CHASING”.

References

  1. 1.
    Gobbi M, Mastinu G, Giorgetta F (2005) Sensor for measuring forces and moments with application to ground vehicle design and engineering. Proceedings of IMECE2005, ASME conference, Orlando, 2005Google Scholar
  2. 2.
    Gobbi M, Guarneri P, Mastinu G, Rocca G (2008) Test rig for characterization of automotive suspension systems. SAE-paper 2008-01-0692Google Scholar
  3. 3.
    Lee JU, Suh JK, Jeong SK, Kandarpa S, Ahsan A, Wolf WL (2003) Development of input loads for road noise analysis. Procedings of the 2003 SAE noise and vibration conference, paper 2003-01-1608Google Scholar
  4. 4.
    Gagliano C, Gobbi M, Mastinu G, Pennati M (2012) Indoor/outdoor testing of a passenger car suspension for vibration and harshness analysis. SAE Int J Passeng Cars Mech Syst 5(2):937–948. doi: 10.4271/2012-01-0765 Google Scholar
  5. 5.
    Gagliano C, Martin A, Cox J, Clavin K, Gerhard F, Michelis K (2005) A hybrid full vehicle model for structure borne road noise prediction. Proceedings of the 2005 SAE noise and vibration conference, paper 2005-01-2467Google Scholar
  6. 6.
    Park J, Gu P, Juan J, Archie N, Van Loon J (2001) Operational spindle load estimation methodology for road NVH applications. SAE noise and vibration conference and expositionGoogle Scholar
  7. 7.
    Park J, Gu P (2003) A new experimental methodology to estimate chassis force transmissibility and applications to road NVH improvement. SAE noise and vibration conference and expositionGoogle Scholar
  8. 8.
    Gagliano C, Tondra M, Fouts B, Geluk T (2008) Development of an experimental tire and road surface model for vehicle interior noise prediction. SAE-paper, 09AC-0081Google Scholar
  9. 9.
    Geluk T, Van der Linden PJG, Van de Wouw N, Nijmeijer H (2006) Test-based modeling of friction-induced deterioration of suspension vibration isolation on smooth roads. The 8th international symposium on advanced vehicle control, Aug 20–24, 2006, Taipei, TaiwanGoogle Scholar
  10. 10.
    Geluk T, Van der Linden PJG, Vige D, Caudano M, Gottardi S, Ciraolo F, Mir H (2011) Noise contribution analysis at suspension interfaces using different force identification techniques. SAE-paper, 2011-01-1600Google Scholar
  11. 11.
    Shiozaki H, Geluk T, Daenen F, Iwanaga Y et al (2012) Time-domain transfer path analysis for transient phenomena applied to tip-in/tip-out (shock & jerk). SAE technical paper 2012-01-1545, doi: 10.4271/2012-01-1545

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Alessandro Lepore
    • 1
  • Theo Geluk
    • 1
  • Massimiliano Gobbi
    • 2
  • Ben Meek
    • 1
    Email author
  1. 1.LMS InternationalLeuvenBelgium
  2. 2.Politecnico Di MilanoMilanItaly

Personalised recommendations