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Designing Automotive Dash Panels with Laminated Metal
Technical Paper
1999-01-3201
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper will outline the analytical procedure of designing automotive dash panels with laminated metal. A laminated dash is analyzed to determine its proper gauge to maintain the stiffness of the sheet metal original. A custom preprocessor is used to generate a finite element mesh of a laminated design. A static analysis determines the laminate displacement for some given worst case scenario. Displacements are determined for several loading conditions. The laminate skin thickness is then varied to achieve the same displacement as that of the original sheet metal design. A modal test is then simulated on the laminated dash to demonstrate its NVH characteristics. A natural frequency extraction is done to visualize the vibration profile of the part. Damping is seen with a frequency response calculation due to an impact load on the part. The frequency response clearly shows the reduced vibrations associated with the laminated dash.
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Citation
Mignery, L., "Designing Automotive Dash Panels with Laminated Metal," SAE Technical Paper 1999-01-3201, 1999, https://doi.org/10.4271/1999-01-3201.Also In
References
- Mignery L.A. “Reduced Vibration Design,” Society of Automotive Engineers, SAE Noise and Vibration Conference, Paper No. 951242 1995
- Mignery L.A. “Vibration Analysis of Metal/Polymer/Metal Components,” Proceedings of the Design Engineering Technical conference, DE-Vol. 84-3, Volume 3-Part C, American Society of Mechanical Engineers 1995
- Mignery L.A. “Designing with Metal/Polymer/Metal Composites,” Proceedings of the International Body Engineering Conference 21 1996
- Mignery L.A. Vydra E.J. “Vibration Analysis of Metal/Polymer/Metal Laminates - Approximate versus Viscoelastic Methods,” Society of Automotive Engineers, SAE Noise and Vibration Conference, Paper No. 971943
- Ford Taurus/Sable, personal communication 1999
- Johnson, C.D. Klenholz, D.A. Rogers, L.C. “Finite Element Prediction of Damping in Beams with Constrained Viscoelastic Layers,” Schock Vib. Bull 51 71 80 1981
- Lu, Y.P. Killian, J.W. Everstine, G.C. “A Finite Element Modeling Approximation for Damping Materials Used in Constrained Damped Structures,” J. Sound Vibr. 97 352 354 1984
- MSC/NASTRAN User's manual 1993