Measurement of head angular acceleration in crash tests:​ development of an electronic device for the hybrid iii dummy

Bendjellal, Farid; Oudenard, Laurent; Uriot, Jerome; Brigout, Christophe; Brun-Cassan, Francoise

Affiliations

¹Laboratory of Accidentology and Biomechanics, Associated with Peugeot S.A./Renault, Nanterre, France

Abstract

A new approach has been developed to facilitate the measurement of head angular acceleration in automobile crash tests. It consists of two parts: an array of 12 linear accelerometers mounted in a Hybrid III dummy head and an electronic signal processor mounted on the dummy spine. The accelerometer outputs are led to conventional data acquisition equipment and also to the signal processor which digitizes the raw acceleration signals, stores them, and computes the 3-D angular acceleration. This acceleration and the 3-D linear acceleration of the head c.g. are available in real time or post test. The equipment has been evaluated on a mini-sled, with various configurations of head loading and kinematics, and also in Hyge sled tests performed at 40 km/h with a 3 point belted Hybrid III dummy. The angular accelerations returned by the signal processor in both test settings corresponded closely to those computed off-line from the raw data.

Links

DOI: 10.4271/922511

SAE: 922511

Cited By (3)

Year	Entry
2009	Kang Y, Moorhouse K, Bolte JH IV. Measurement of 3-D head kinematics in impact conditions employing six-accelerometers and three-angular rate sensors (6aω configuration). In: Proceedings of the 37th International Workshop on Human Subjects for Biomechanical Research. 2009.
2011	Kang Y-S, Moorhouse K, Bolte JH. Measurement of six degrees of freedom head kinematics in impact conditions employing six accelerometers and three angular rate sensors (6aω configuration). J Biomech Eng. November 2011;133(11):111007.
2011	Kang YS. Evaluation of Biofidelity of Anthropomorphic Test Devices and Investigation of Cervical Spine Injury in Rear Impacts: Head-Neck Kinematics and Kinetics of Post Mortem Human Subjects [PhD thesis]. The Ohio State University; 2011.