This content is not included in your SAE MOBILUS subscription, or you are not logged in.
High Performance Vehicle Chassis Structure for NVH Reduction
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 03, 2006 by SAE International in United States
Annotation ability available
The main objective of this paper was to determine if the vehicle performance can be maintained with a reduced mass cradle structure. Aluminum and magnesium cradles were compared with the baseline steel cradle. First, the steel chassis alone is analyzed with the refined finite element model and validated with experimental test data for the frequencies, normal modes, stiffnesses and the drive-point mobilities at various attachment mount/bushing locations. The superelement method in conjunction with the component mode synthesis (CMS) technique was used for each component of the vehicle such as Body-In-White, Instrument Panel, Steering Column Housing & Wheel, Seats, Cradles, CRFM, etc. After assemblage of all the superelements, analysis was carried out by changing the front and rear cradle gauges and the material properties. The drive-point mobility response was computed at various locations and the noise (sound pressure) level was calculated at the driver and passenger ears. This study considers the structure-borne noise frequency range between 25Hz and 250Hz. It will be shown that an aluminum cradle can achieve the same vehicle performance as a steel cradle while reducing weight.
|Technical Paper||Alulight - Aluminum Foam for Lightweight Construction|
|Technical Paper||Procedure to Realize the FEM Model of a Tubular Steel Frame for Motorcycles|
|Technical Paper||Six Sigma Methodologies in Microjoining - Improve Step|
CitationBennur, M., Posthuma, D., and Lewitzke, C., "High Performance Vehicle Chassis Structure for NVH Reduction," SAE Technical Paper 2006-01-0708, 2006, https://doi.org/10.4271/2006-01-0708.
- BERANEK L. L. 1988 Noise and Vibration Control. Washington, DC: Institute of Noise Control Engineering.
- HARRIS C.M. 1987 Shock and Vibration handbook. McGraw-Hill Book Company, New York.
- MAIA, N.M.M. SILVA J. M. M. and RIBEIRO A.M.R. 2001 Mechanical Systems and Signal Processing. 15(1), 129–137, “The transmissibility concept in multi-degree-of-freedom systems”.
- SWANSON, D. A. MILLER L.R. and NORRIS M. A. 1994 Journal of Aircraft, 31(1), 188–196, “Multidimensional mount effectiveness for vibration isolation”.
- KIM S. and SINGH R. 2001 Journal of Sound and Vibration, 248(5), 925–953, “Vibration transmission through an isolator modeled by continuous system theory”.
- CREMER L. and HECKLE M. 1973 Structure-Borne Sound: Structural Vibrations and Sound Radiation at Audio Frequencies. New York: Springer-Verlag.
- SINGH R. and KIM S. 2003 Journal of Sound and Vibration, 262, 419–455, “Examination of multidimensional vibration isolation measures and their correlation to sound radiation over a broad frequency range”.
- KIM S. and SINGH R. 2001 Journal of Sound and Vibration, 245(5), 877–913, “Multi-dimensional characterization of vibration isolators over a wide a range of frequencies”.
- Zienkiewicz O.C. 1979 The Finite Element Method. 3rd edition, McGraw-Hill Book Company, New York.
- MALLIKARJUNA and KANT T. 1989 International Journal for Numerical Methods in Engineering, 28(8), 1875–1889, “Free vibration of symmetrically laminated plates using a higher order theory with finite element technique”.
- MALLIKARJUNA and KANT T. 1992 International Journal of Applied Finite Elements and Computer Aided Engineering – Finite Elements in Analysis & Design, 12(1), 63–73, “Transient response of isotropic, orthotropic and anisotropic composite-sandwich shells with the superparametric element”.
- MALLIKARJUNA and KANT T. 1992 International Journal for Numerical Methods in Engineering, 35(10), 2031–2047, “Effect of cross-sectional warping of anisotropic sandwich laminates due to dynamic loads using a refined theory and C° finite elements”.
- MALLIKARJUNA and KANT T. 1990 Journal of Applied Mechanics – American Society of Mechanical Engineers, 57(4), 1084–1086, “Finite element transient response of composite and sandwich plates with a refined theory”.
- MALLIKARJUNA and KANT T. 1992 International Journal of Computers & Structures, 42(3), 381–388, “A general fibre reinforced composite shell element based on a refined shear deformation theory”.
- Fafard, M. Bennur, Mallikarjuna and Savard M. 1997 International Journal for Computer Aided Engineering & Software – Engineering Computations, 14(5), 491–508, “A general multi-axle vehicle model to study the bridge-vehicle interaction”.
- MALLIKARJUNA and KANT T. 1988 Journal of Sound and Vibration. 126(3), 463–475, “Dynamics of laminated composite plates with a higher order theory and finite element discretization”.
- KANT T. and MALLIKARJUNA 1989 Journal of Sound and Vibration. 134(1), 1–16, “Vibrations of unsymmetrically laminated plates analyzed by using a higher order theory with a C° finite element formulation.”
- Nastran, MSC. Version 2005, MSC.Software Corp., Santa Ana, California.