Determining the Precision of the Hybrid III Small Female Neck Calibration Laboratory Test Procedure Using ASTM E 691

2007 ◽  
Author(s):  
John D. Below ◽  
Paul J. Depinet ◽  
Jason D. Jenkins ◽  
Virginia L. Watters
Keyword(s):  
Laboratory Test ◽  
Test Procedure ◽  
Small Female ◽  
Calibration Laboratory ◽  
Hybrid Iii

Letters to the Editor

PEDIATRICS ◽  
1980 ◽  
Vol 66 (3) ◽  
pp. 482-482
Author(s):  
J. Swanson
Keyword(s):  
Laboratory Test ◽  
Test Procedure ◽  
Drug Trial ◽  
Short Term ◽  
Letters To The Editor ◽  
Stimulant Drug ◽  
Stimulant Drugs ◽  
Hyperactive Children ◽  
Initial Work ◽  
Conservative Bias

In their letter, McLaughlin and Tso have misinterpreted the purpose of the short-term diagnostic drug trial we have proposed (Pediatrics 61:21, 1978). We developed our laboratory test procedure to screen out potential adverse responders, in order to prevent their mistreatment with stimulant drugs. We feel that this conservative bias is necessary, since there has been general agreement since Bradley's (1939, 1950) initial work that not all behaviorally hyperactive children have a favorable response to stimulant drug.1,2

A Method for the Assessment of the Dynamic Performance of Neck Protection Devices

2013 ◽  
Author(s):  
Gianmarco Galmarini ◽  
Massimiliano Gobbi ◽  
Gianpiero Mastinu ◽  
Giorgio Previati
Keyword(s):  
Impact Load ◽  
Dynamic Performance ◽  
Head Injuries ◽  
Test Procedure ◽  
Neck Injury ◽  
Multibody Model ◽  
Hybrid Iii ◽  
Protection Devices ◽  
Male Hybrid ◽  
The Impact

In this paper a method for the evaluation of the dynamic performance of neck protection devices for motorcyclists is presented. The research project involves both experimental and numerical activities. An impulsive load is applied to the head of a 50th percentile male Hybrid III dummy while wearing a helmet by means of a pendulum of calibrated mass starting from a well-defined initial condition. The impact load and the load at the neck of the dummy are measured by means of two six axes load cells. Additionally, head linear and rotational accelerations are measured. The test procedure shows a very good repeatability and allows for the comparison of the force passing through the neck with and without neck protection devices. Since neck protection devices should work in situations in which no relevant head injuries are present, the experimental parameters (pendulum mass and speed) are chosen to cause a high probability of injuries to the neck together with a low probability of damages to the head while wearing a standard helmet. Injury indices, found in the literature, have been used to determine the neck injury level. A multibody model of the human neck, developed in Matlab™ SimMechanics™, is validated by using the data acquired during the tests. A study of real-world crashes has allowed the identification of reference impact scenarios which have been simulated by using the multibody model. The validated model is suitable to determine the chance that a motorcyclist would have significant neck injury with or without a neck protecting device.

Development and Testing of a Prototype Pregnant Abdomen for the Small-Female Hybrid III ATD

2001 ◽  
Author(s):  
Jonathan D. Rupp ◽  
Kathleen Desantis Klinich ◽  
Steve Moss ◽  
Jennifer Zhou ◽  
Mark D. Pearlman ◽  
...  
Keyword(s):  
Small Female ◽  
Hybrid Iii ◽  
Female Hybrid

Blast Mitigation Seat Analysis: Assessment of the Effect of Personal Protective Equipment on the 5th Percentile Female Anthropomorphic Test Device Performance in Drop Tower Evaluations

2015 ◽  
Author(s):  
Kelly Bosch ◽  
Katrina Harris ◽  
David Clark ◽  
Risa Scherer ◽  
Joseph Melotik
Keyword(s):  
Personal Protective Equipment ◽  
Drop Tower ◽  
Protective Equipment ◽  
Blast Mitigation ◽  
Military Population ◽  
Small Female ◽  
Data Set ◽  
Technical Publication ◽  
Blast Energy ◽  
Hybrid Iii

To address the lack of knowledge on the quantitative effects of Personal Protective Equipment (PPE) on the small occupant, 55 drop tower tests were conducted and the resulting responses were evaluated. A previous technical publication evaluated the results of drop tower testing of twelve models of blast energy-attenuating seats1. That study assessed the data recorded from three sizes of anthropomorphic test devices, or ATDs, including the Hybrid III 5th percentile female, the Hybrid III 50th percentile male, and the Hybrid III 95th percentile male. The forces, moments, and accelerations from the ATDs were compared to Injury Assessment Reference Values (IARVs) to validate the drop tower methodology and to evaluate the appropriateness of the IARVs developed for the three occupant sizes. The data review revealed that the maximum lumbar compression loads recorded by the ATDs was an effective “go/no-go” criteria for judging seat performance, and that the 5th percentile female ATD, or small occupant, was the most difficult to pass the corresponding lumbar compression IARV. Additionally, the 5th percentile female ATD exceeded its corresponding IARV for upper neck compression, leading to the motivation for this study; the data set from the previous technical publication was used in this study. Historically, blast mitigation seats are designed to accommodate the average sized occupant, or 50th percentile male. Moving forward, there is a new emphasis on extending the protection afforded to the full military population, including the small female. The data presented in this paper seeks to determine the effect of PPE on the lumbar compression and upper neck loads for the small occupant.

Comparison of D-Plane Measurement Methods for the Hybrid III Small Female Neck Flexion Test

2008 ◽  
Author(s):  
Jason D. Jenkins ◽  
Emad Al-Tabakha ◽  
John D. Below ◽  
Paul J. Depinet ◽  
Virginia L. Watters
Keyword(s):  
Measurement Methods ◽  
Neck Flexion ◽  
Small Female ◽  
Hybrid Iii ◽  
Flexion Test
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