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Development of a Free Motion Headform Impactor
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 19, 2011 by The Automotive Research Association of India in India
Annotation ability available
Event: SIAT 2011
The development of interior fittings of passenger car to minimize the injuries to the head of the occupants requires mandatory compliance to the regulations in Europe and USA. In European regulation ECE R21 and similarly in FMVSS 201 the test on the instrument panel area suffices. The FMVSS 201u requirements in USA require also a free motion headform to be impacted on additional areas of the A-Pillar trim, sun visors, grab handles, and seat belt upper anchorage points of the B-Pillar too.
Free Motion Headform Impactors (FMHI) are costly equipment. The FMVSS 201u  test is not conducted by any test agency in India as yet. Paper deals with the development of the head form impactor to fire the headform at angular positions in the vehicle and the test results have enabled the development of the vehicle interiors to enhance the safety of vehicles in crash situations. The test results are acquired with readily available data acquisition system and high speed photography to record the behavior of the panels, trims and other parts during impact.
CitationJain, V. and Mujawar, Z., "Development of a Free Motion Headform Impactor," SAE Technical Paper 2011-26-0105, 2011, https://doi.org/10.4271/2011-26-0105.
- FMVSS 571.201 - Standard No. 201 Occupant protection in interior impact
- Regulation No. 21 - Rev2 - Amm2 Uniform provisions concerning the approval of vehicles with regard to their interior fittings
- “Pneumatics: Theory and Applications” Bosch Automation Germany Robert Bosch GmbH
- Meixner, H Kobler, R “Introduction to Pneumatics” 3 rd Festo Didactic
- Festo Catalogue
- SAE recommended practice instrumentation for impact tests SAE J211 1980
- Instrument panel laboratory impact test procedure SAE 1921, SAE recommended practice