Worldsid advanced Harmonised Dummy for Side Impact

WorldSID Advanced Harmonised Dummy for Side Impact

June1997 ISO/TC22/SC12/WG5 resolution followed by creation of Task Group & regional groups

• June1997 ISO/TC22/SC12/WG5 resolution followed by creation of Task Group & regional groups

• Oct.1998 Project Manager contracted

• Jan.1999 Request for Quote for dummy design

• Mar.1999 presentation of concepts

• then creation of Design Team

• Sep.1999 completion of design specification

• June2000 sign off of dummy design

Sep.2000 assembly of prototype

• Sep.2000 assembly of prototype

• Dec.2000 delivery of prototype

• Dec.2000 first crash tests and WorldSID Workshop

• Jan.2001 evaluation of prototype biofidelity

• Jun.2001 identification of initial modifications

• followed by application of modifications
• …

• Anthropometry

• 50th percentile male

• overall height: 1753 mm

• seated height: 911 mm

• total mass: 77,3 kg

• Complies with UMTRI anthropometry

• data for adult crash test dummies

• Biofidelity

• Goal: ‘Good’ to ‘Excellent’ on ISO TR9790 scale

Thorax, Shoulder, Abdomen

Lumbar Spine

• New concept for de-coupling of pelvis and thorax

7 DAS modules in dummy

• 7 DAS modules in dummy

• 0ver 200 channels available

• Signal

• conditioning

• moved to the sensor.

• Distributed, modular

• data acquisition.

• Drastically reduced wire

• bundles inside dummy.

• Umbilical from dummy is for power, com, and trigger.

ISO Rating (from TR 9790)

• Response completely inside corridor B = 10

• Response within one corridor width outside corridor B = 5

• Response more than one corridor width outside corridor B = 0

• Mean score for each body segment

• After weighting body segments, mean of body segments = overall B

• Excellent Biofidelity: 8,6 B 10,0

• Good Biofidelity: 6,5 B 8,6

• Fair Biofidelity: 4,4 B 6,5

• Marginal Biofidelity: 2,6 B 4,4

• Unacceptable Biofidelity: 0,0 B 2,6

Summary – Prototype Biofidelity Evaluation

Summary of Results

• Head: good lateral biofidelity – frontal response is second priority but only minor modification to meet objective

• Neck: - difficult to meet both lateral and frontal response

• requirements

• - Response influenced by shoulder

• – More work to be done

• Shoulder: to be stiffened – should easily meet objective

• Thorax: meets objective

• Abdomen: objective should be met after modification

• Pelvis: appears to be too stiff

• - Check bone/flesh mass distribution

• - Design may be incompatible with TR 9790 sled tests with padding