In the proposed FMVSS No. 202a, manufacturers were given the option of meeting either of two sets of requirements.
The first set was a comprehensive group of dimension and strength requirements, compliance with which is measured statically.
The second set was made of requirements that would have to be met in a dynamic test.
NHTSA (National Highway Traffic Safety Administration)
in
FMVSS 202a,
Head Restraints, specifies requirements for head restraints to reduce the frequency and severity of neck injury in rear-end and other collisions.
The standard applies to each front and rear outboard Designated Seating Position with a head restraint, and allows head restraints to be tested either dynamically or statically.
Exceptions are made for school buses; refer to the Code of Federal Regulations for the specific exceptions.
This test procedure covers the static requirements. Finite element simulation software, such as Ansys LS-DYNA, Simulia Abaqus, ESI Pam-Crash and Altair RADIOSS, is used by our engineers with special-purpose dummies to simulate head restraints based on FMVSS 202a in order to reduce the frequency and severity of neck injury in rear-end and other collisions.
Other related regulations:
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▶ FMVSS201 Head Impact
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▶ FMVSS207/210 Seatbelt Anchorage
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▶ FMVSS208 Frontal Impact
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▶ FMVSS214 Static & Dynamic Side Impact
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▶ FMVSS225 Child Restraint Anchorage
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▶ FMVSS301 Rear Impact & Fuel Integrity
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▶
Insurance Institute for Highway Safety (IIHS) Offset Frontal Impact
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▶ IIHS Side Impact
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▶ IIHS Low Speed Bumper Impact
