Performance Requirements and Characteristics of Mechanical Necks
A short history of the development of mechanical necks for anthropomorphic dummies is given. The response envelopes recommended by Mertz and Patrick are reviewed. A modified performance requirement for mechanical necks based on this data, but emphasizing loading corridors, is set forth. Autogenous and dynamic neck trajectories for the volunteer LMP are presented, and the difficulties of establishing a trajectory performance requirement are discussed.
Commerical necks were tested and found to be incompatible with the performance requirements. Several experimental necks were tested and one, the GMR Polymeric Neck, demonstrated the feasibility of satisfying the requirements. However, additional efforts are required to assure proper performance of this neck when used in conjunction with a total dummy structure under a wider range of test conditions.
KeywordsTorque Foam Mold Rubber Assure
Unable to display preview. Download preview PDF.
- 1.H. J. Mertz and L. M. Patrick, “Strength and Response of the Human Neck,” Proceedings of the Fifteenth Stapp Car Crash Conference, SAE 1971.Google Scholar
- 2.H. J. Mertz and L. M. Patrick, “The Effect of Added Weight on the Dynamics of the Human Head, ” U.S. Army Natick Laboratories, Natick, Mass., 1971. Report on Contract No. DAAG-17–67-C-0202.Google Scholar
- 3.J. W. Melvin, “Improved Neck Simulations for Use with Anthropomorphic Dummies, ” Contract No. 329570, Highway Safety Research Institute, The University of Michigan, Ann Arbor, Michigan, 1972.Google Scholar
- 4.R. G. Snyder, D. B. Chaffin, and R. K. Schultz, “Link System of the Human Torso, ” AMRL, Wright-Patterson Air Force Base, Contract F33615–70-C-17777, 1971.Google Scholar
- 5.“Test Procedure and Performance of Anthropomorphic Test Devices,” Safety Systems Laboratory, National Highway Traffic Safety Administration,1971.Google Scholar
- 7.H. J. Mertz and L. M. Patrick, “Investigation of the Kinematics and Kinetics of Whiplash, ” Proceedings of the Eleventh Stapp Car Crash Conference, SAE 1967.Google Scholar