Lap-Shoulder Belt Performance as a Function of Occupant Size University of Alabama at Birmingham

Format:

Conference/Event

Author/Creator:

Bidez, Martha Warren, author.

Conference Name:

SAE 2005 World Congress & Exhibition (2005-04-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

The Federal Motor Vehicle Safety Standards (FMVSS) require rear seat, lap/shoulder belts to "fit" Hybrid III dummies ranging in size from a 6 year old child (H3-6C) to a 95th-percentile-male (H3-95M). No dynamic performance FMVSS, however, exist for rear seat belt systems. Variations in the three-dimensional "fit" of the same lap-shoulder belt positioned around these extreme dummy sizes suggest a possible difference in performance.The purpose of this study was to assess the performance of two production lap-shoulder belt designs in a large SUV buck on a rebound sled using instrumented H3-6C, 5th-percentile-female (H3-5F) and H3-95M dummies. Sled velocities were approximately 35 kph.Test instrumentation included: lap and shoulder belt load transducers, triaxial accelerometers at the center of gravity of the head, triaxial accelerometers and a deflection gauge in the chest, and six-axis force (and moment) transducers in the neck of the dummy. Tests were photographed using high-speed digital photography in the oblique and lateral views at rates of approximately 1,000 frames per second. In addition, pre- and post test images were taken using still digital photography. Sensor signals were filtered according to SAE specifications. Physical evidence on the lap-shoulder belts and retractor housings were carefully documented.A relationship exists between belt loads to the restraint as a function of occupant mass and sled velocity. Physical damage to the belt systems provides forensic evidence that varies with occupant mass, crash severity and principal direction of force

Notes:

Vendor supplied data

Publisher Number:

2005-01-1705

Access Restriction:

Restricted for use by site license