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Mechanical Necks with Humanlike Responses
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1972 by SAE International in United States
Annotation ability available
A viscoelastic neck structure that responds to impact environments in a manner similar to the human neck is described. The neck structure consists of four ball-jointed segments and one pin-connected “nodding” segment with viscoelastic resistive elements inserted between segments that provide bending resistance as well as the required energy dissipation. Primary emphasis was placed on developing appropriate flexion and extension responses with secondary emphasis placed on axial, lateral, and rotational characteristics. The methods used to design the resistance elements for the neck structure are discussed.
Three variations of the resistive elements have been developed that meet the response characteristics based on the data of Mertz and Patrick. However, no single resistive element has satisfied the flexion and extension characteristics simultaneously, but such an element appears to be feasible.
Additional efforts are required to assure proper performance when used in conjunction with a total dummy structure under a wider range of test conditions and to establish the durability required for this neck to serve as an adequate compliance test device.
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CitationCulver, C., Neathery, R., and Mertz, H., "Mechanical Necks with Humanlike Responses," SAE Technical Paper 720959, 1972, https://doi.org/10.4271/720959.
- Mertz H. J. and Patrick L. M., “Investigation of the Kinematics and Kinetics of Whiplash.” SAE Transactions, Vol. 76, paper 670919.
- Mertz H. J. and Patrick L. M., “Strength and Response of the Human Neck.” SAE Transactions, Vol. 80 (1971), paper 710855.
- Mertz H. J., Neathery R. F., and Culver C. C., “Performance Requirements and Characteristics of Mechanical Necks.” General Motors Research Laboratories Symposium 1972, Human Impact Response - Measurement and Simulation, October 2-3, 1972.
- Mertz H. J. and Patrick L. M., “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.