1984-10-01

Influence of the Surrogate in Laboratory Evaluation of Energy-Absorbing Steering System 841660

Various surrogates and responses are available for study of the impact performance of energy absorbing steering systems in the laboratory. The relative influence of the SAE J-944 body block, the Part 572 dummy, and the GM Hybrid III dummy and of the associated thoracic responses were investigated for steering assembly impact in a series of sled tests. Not only did response amplitudes differ among the surrogates but more importantly trends in impact performance associated with modifications of the steering assembly depended on the choice of surrogate and response. The Hybrid III dummy was judged the best of the tested surrogates for study of the steering system impact performance in the laboratory, based on its more humanlike construction, impact response and expanded measurement capacity.

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