This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Head Impact Analysis of a Typical Instrument Panel Mounted Radio
Technical Paper
2007-26-007
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
SIAT 2007
Language:
English
Abstract
Designing for ‘Crash Safety’ is a challenging technical area for automotive engineers. FMVSS201 is a United States Federal Regulation intended to address head injury of occupants during a motor vehicle collision. This paper reviews the motivation and basis for the utilization of FEA techniques that are less expensive than traditional “explicit” methods to provide a qualitative assessment of intended design modifications to meet head impact requirements such as FMVSS201.
In the specific case considered here, the highlight of our work includes the mitigation of a three way discussion between Delphi, its customer and a third party supplier. The study concluded in proving that modifying the radio bracket; designed by the third party supplier provided the best solution in addressing the head impact issue.
Technically, this meant benchmarking the approach to address the physics of the problem, co-relating the analysis results with laboratory tests, and developing a first-order tool to provide indicative results, without going through the computational rigor of a full fledged LS/DYNA analysis.
This study considers a specific design, highlighting the importance of mounting brackets in reducing peak deceleration levels. The intent of this study is to bring out an economical alternative to repetitive testing and / or complex FEA using LS/DYNA when addressing head impact issues on radios mounted on the Instrument Panel (IP) of the Automobile.
The initiative provides judicious employment of FEA, in that it qualitatively predicts the performance of various design modifications vis-à-vis meeting the norms laid out by FMVSS201 for head impact situations. This study provides confidence to the design engineer to move towards effective countermeasure options required to pass the validation requirements.
Recommended Content
| Technical Paper | Occupant Knee Impact Simulations: A Parametric Study |
| Technical Paper | Advanced Thermoplastic Composites for Automotive Semi-Structural Applications |
| Technical Paper | Microprocessor Control for Liquid Crystal Instrument Panel |
Authors
Topic
Citation
Sreenath, K. and Krishna, A., "Head Impact Analysis of a Typical Instrument Panel Mounted Radio," SAE Technical Paper 2007-26-007, 2007, https://doi.org/10.4271/2007-26-007.Also In
References
- “Laboratory Test Procedure for FMVSS 201, Occupant Protection in Interior Impact” National Highway Traffic Safety Administration - U.S. Department of Transport
- Val A. Bellora Krauss Ryan “Meeting Interior Head Impact Requirement: A Basic Scientific Approach” SAE Paper No. 2001-01-0469
- Xiao Xinran “Plastic Material Modeling for FMVSS 201 Simulation” SAE Paper No. 2002-01-0385
- Keranen Michael Hanford James “Interior Fittings - A Global View” SAE Paper No. 2003-01-1175
- Shrikant N. Bhadri et al. “Finite Element Analysis of a Radio Mounting Clip Under Rear Crash Loading Environment” SAE Paper No. 2004-28-0049
- Xunnan He Simon et al. “A Design Methodology for Interior Components to Comply with FMVSS 201 Head Impact Requirement” SAE Paper No. 2000-01-0638