Speak to a world-class expert now.
1-800-FOR-KKAI (1-800-367-5524)
info@kkai.com
PrimeTrack® Instant Conferencing
PrimeTrack® Project Management System (patent pending)
CENTER FOR RAPID RESPONSE ENGINEERING® SOLUTIONS
ENGINEERING AND SCIENTIFIC CONSULTING SERVICES
Neck Tension Force in IIHS Rear Impact Tests
Consultant
MTK is a Automobile Impact Safety, Automotive Occupant Protection Expert with world-class expertise in automotive engineering, impact safety, occupant protection systems, regulatory requirements, and restraint system design.
As a vehicle technology research consultant, this expert offers experience in areas including occupant injury performance, occupant crash modeling tools, testing methods, data analysis and statistical techniques, and vehicle crash safety.
Speak to this experienced, world-class expert now.
- Call (317) 735-4937
- E-mail mtk@rapid-response-consulting.com
For additional or different expertise, browse other top-level expert resumes in Expert Testimony, Failure Analysis, Manufacturing Optimization, KKAI's Center for Rapid Response Engineering® Solutions and a host of other Engineering and Scientific Consulting services.
Learn how KKAI assembles expert teams of any size or skill set combination to meet our clients' needs on a rapid-response basis - no matter how complex the challenge.
Or, peruse our 400 case studies or 500 other expert resumes.
This paper examines the neck tension force (Fz) of the BioRid II dummy in the IIHS (Insurance Institute of Highway Safety) rear impact mode. The kinematics of the event is carefully reviewed, followed by a detailed theoretical analysis, paying particular attention to the upper neck tension force. The study reveals that the neck tension should be approximately 450N due to the head inertia force alone. However, some of the tests conducted by IIHS had neck tension forces as high as 1400N. The theory of head hooking and torso downward pulling is postulated in the paper, and various publicly available IIHS rear impact tests are examined against the theory. It is found in the analysis that in many of those tests with high neck tension forces, the locus of the head restraint reaction force travels on the dummy's skull cap, and eventually moves down underneath the skull cap, which causes "hooking" of the head on the stacked-up head restraint foam. This "hooking" phenomenon, in combination with a simultaneous torso downward pulling motion due to pelvis rebounding, results in a high neck tension. Several scenarios of neck tension in relation to dummy kinematics are hypothesized, and each hypothesis is tested using IIHS test data.
For more information, please contact this consultant.
Read other articles by this KKAI Associate:
| Automobile Impact Safety, Automotive Occupant Protection Expert, automotive engineering, impact safety, occupant protection systems, regulatory requirements, and restraint system design. As a vehicle technology research consultant, this expert offers experience in areas including occupant injury performance, occupant crash modeling tools, testing methods, data analysis and statistical techniques, and vehicle crash safety. | |
| Resume of ATH | automotive occupant restraint systems, safety expert consultant |
| Resume of BGW | collision investigation, accident analysis, expert consultant |
| Resume of KCK | ergonomics, safety, industrial hygiene, expert consultant |
| Resume of ZCP | forensic fire expert consultant, arson investigator |
To search for specific expertise, enter your search query (type of
expertise you are seeking) in the box below, choose to search the entire
Rapid-Response site or just resumes and brochures, then click the search button.
Please note that the list of resumes available online is a select subset of our
vast database. If your search of our site does not reveal the expertise you are
seeking, please call us toll-free (in the U.S.) at 1-800-367-5524 or
contact us for more information and we will gladly assist you in
locating the specific expertise you require.
Have an urgent litigation support or engineering and scientific consulting need? Contact KKAI now for world-class, expert rapid response.
1-800-FOR-KKAI (1-800-367-5524)
info@kkai.com
BACK TO THE TOP OF THIS PAGE
Kevin Kennedy & Associates, Inc.
Rapid Response Engineering® Solutions
3905 Vincennes Road, Suite 320
Indianapolis, Indiana 46268
(317) 536-7000 voice
(317) 536-7220 fax