Test and Evaluation of US Army Restraint Panel (Brooks and Perkins Mechanical Restraint System B)

1977 ◽  
Author(s):  
John J. Guba ◽  
Douglas J. Holzhauer
Keyword(s):  
Restraint System ◽  
Mechanical Restraint ◽  
Us Army ◽  
Test And Evaluation

The Restraint System, as practised at the North and East Ridings Asylum, and at the Asylum for the County of Bedford

1854 ◽  
Vol 1 (6) ◽  
pp. 81-83
Keyword(s):  
Great Improvement ◽  
Restraint System ◽  
Single Patient ◽  
Public Speech ◽  
Mechanical Restraint ◽  
The North ◽  
Dense Forest ◽  
The Future ◽  
The Hill

When the future historian of the manners and customs of the present age shall seek for the most Prominent fact which in this country distinguishes the prevailing spirit as that of humanity, he will scarcely hesitate in awarding the post of honor to the Non-Restraint system of treating the insane. The change which the system of which the total abolition of mechanical restraint is the key stone has effected, has been, where adopted in its entirety, a total one. The change is so complete, that its extent is hard to realize; just as a denizen of this fair country experiences difficulty in picturing to his imagination the hill Sides clothed with dense forest, the postures occupied by poisonous fens, the whole inhabited by painted Celts and other Savage animals. But it has not taken ages nor even the brief space of one man's life, to substitute the most benign features of human gentleness for the savagery of the old mad house. In a public speech at Stafford, the Lord Bishop of the diocese stated, “He never came away from the asylum without a feeling of gratitude and thankfulness. Much had been said of the great improvement which had taken place in the treatment of the insane, he might, perhaps, be allowed to mention one fact which had been told him by Sir Charles Clarke, but which Sir Charles (who was present) had not stated to them. Sir Charles told him, that he remembered when a student, he had often passed Bethlem, and heard the rattling of the chains and the shrieks of the patients. Only think of that, in the crowded streets of the metropolis to hear the rattling of the chains and the shrieks of the patients ! And now, as had been stated by Lord Harrowby, they might go over their own asylum, containing between three and four hundred patients, and not see a single patient placed under restraint of any kind, but all enjoying the utmost possible comfort which their cases would admit of. What a contrast to the rattling of chains and the shrieks of the patients!”

On the Non-Restraint System,

1855 ◽  
Vol 1 (10) ◽  
pp. 153-155
Author(s):  
Robert Gardiner Hill
Keyword(s):  
Restraint System ◽  
Mechanical Restraint ◽  
Limited Experience ◽  
Short Time

In a recent review of the answers of the medical officers of asylums, published in the Eighth Report of the Commissioners in Lunacy, it is objected that “many of the gentlemen who have forwarded replies to the Commissioners, and who have expressed an unqualified opinion in favor of non-restraint are men of but limited experience, having but for a short time been practically engaged in the treatment of the insane Again, a few of the medical men who answered the circular of the Commissioners, are in the habit of admitting into these houses a limited number of ‘nervous invalids,’ a quiet class of patients, not at all likely to require the application of mechanical restraint in their treatment. The evidence of these gentlemen is not, therefore, of much value quoad the question at issue.'’

Human Factors Engineering Test and Evaluation in the US Military

1985 ◽  
Vol 29 (5) ◽  
pp. 499-503
Author(s):  
Thomas G. O'Brien
Keyword(s):  
Human Factors ◽  
Human Performance ◽  
Evaluation Process ◽  
Human Factors Engineering ◽  
Us Army ◽  
Test And Evaluation ◽  
Current Test ◽  
Operational Test ◽  
The Us ◽  
Critical Issues

The paper summarizes current test and evaluation methods employed by the US Army. The role of human factors in weapons systems acquisition is discussed along with the author's perspective on problems related to the test and evaluation process. Utilization of human performance operational test data to improve the human-materiel interface before type classification or transition into the next phase of development is of particular concern. The paper suggests an alternative to current methods which would combine engineering and operational testing to address both technical and operational system critical issues.

The Effects of Soldier Gear Encumbrance on Restraints in a Frontal Crash Environment

2015 ◽  
Author(s):  
Sebastian K. Karwaczynski ◽  
Ryan W. Hoover ◽  
Chris P. Jessup ◽  
Kyle M. Paulson
Keyword(s):  
System Design ◽  
System Level ◽  
Crash Test ◽  
Restraint System ◽  
Test Environment ◽  
Us Army ◽  
Military Vehicles ◽  
Crash Testing ◽  
Military Vehicle ◽  
Experimental Variation

Crash testing and validation of Military vehicles has not to date, accounted for the Soldier gear burden. Actual loads imparted onto the occupant in a representative Military vehicle crash test environment have been limited and do not reflect what an occupant would actually see in this type of an event. The US Army Soldier encumbered with his gear poses a challenge in restraint system design that is not typical in the automotive world. The weight of the gear encumbrance may have a significant effect on how the restraint system performs and protects the occupant during a frontal event. Other system level complications to Military vehicle interiors are secondary impact surfaces, such as instrument panels, ammunition cans and weaponry which provide a path for off-loading the energy generated by the occupant and gear combination. The energy absorption of these surfaces however, is not ideal in current Military vehicle designs and may result in injury or death. The goal of this study was to investigate gear and accelerative pulses as they relate to the restraints and occupant interaction. Data from this study will be used for further restraint development. To limit experimental variation a fixed steel seat structure was utilized throughout the entire testing series. It is hypothesized that determining these effects will lead to a restraint system design that can be optimized to provide restraint for the whole range of occupant sizes and gear variations. Further reductions in occupant injury are achieved by properly tuning the surrounding trim, air bags and cargo contact surfaces. Results of this study indicate the inclusion of the soldier gear may increase the likelihood of occupant excursion and injury. Variation in accelerative pulses resulted in lower injury values and occupant displacements.

scholarly journals Vent Control as a Means of Enhancing Airbag Performance

2002 ◽  
Vol 9 (3) ◽  
pp. 123-128
Author(s):  
Richard E. Zimmermann
Keyword(s):  
Phase I ◽  
System Size ◽  
General Aviation ◽  
Normal Operation ◽  
Restraint System ◽  
Us Army ◽  
The Us ◽  
Fixed Area ◽  
Langley Research Center ◽  
Injury Potential

Typical automotive airbag systems have a fixed area vent for exiting gasses. The US Army Cockpit Airbag System (CABS) is unvented to prolong the period during which the system can provide occupant protection during extended helicopter crash scenarios. In each application, system performance may be enhanced by providing a controlled vent area. This paper describes work conducted under a Phase I SBIR program sponsored by the NASA Langley Research Center. The work was focused on eventual inflatable restraint system applications in general aviation aircraft, and showed that appropriate vent control offers many enhancements. Two series of tests conducted during Phase I showed that inflatable restraint system size and weight can be reduced without degrading performance, injury potential in an out of position situation (OOPS) deployment can be reduced, and peak bag pressures can be reduced (at any temperature) during normal operation.

Test and Evaluation of a Zero-G Treadmill Restraint System

1992 ◽  
Vol 36 (1) ◽  
pp. 136-140
Author(s):  
Glenn K. Klute ◽  
Albert Rodriguez ◽  
Lyndon B. Johnson
Keyword(s):  
Human Exposure ◽  
Physiological Responses ◽  
Feedback System ◽  
Zero Gravity ◽  
Restraint System ◽  
Physiological Changes ◽  
Test Results ◽  
Adjustment Mechanism ◽  
Test And Evaluation ◽  
The Subject

Manned spaceflight missions result in human exposure to reduced gravity environments, during which the human body undergoes some pronounced physiological changes. Exercise has been identified as a practical and operationally acceptable countermeasure to the physiological responses to “zero-gravity”. At the National Aeronautics and Space Administration's Johnson Space Center, a new treadmill is under development for use on Shuttle flights. One of the main challenges of this project is the development of an effective restraint system. The restraint system must place a body weight load on the subject while the subject exercises in zero-gravity. Additionally, the restraint system must allow the subject to exercise in zero-gravity at various percent grades (treadmill slopes). This paper discusses the restraint system of a prototype treadmill and zero-gravity test results. The results indicate the manually operated, prototype restraint system has some limitations and that a real-time feedback system utilizing a servo operated adjustment mechanism would significantly enhance performance.

The “Pall Mall Gazette” on the Non-Restraint System

1870 ◽  
Vol 16 (73) ◽  
pp. 60-70
Keyword(s):  
Restraint System ◽  
The Real ◽  
Mechanical Restraint ◽  
Righteous Anger ◽  
The Subject

In the number of this Journal for October, 1869, we noticed an article in the Pall Mall Gazette, the real, if not overt, aim of which appeared to be to throw discredit on the nonrestraint system. Moved to a righteous anger by the recent death from broken ribs of a patient at the Hanwell Asylum, of another at the Lancaster Asylum, and of another at the Joint Counties' Asylum, Carmarthen, the Gazette has returned to the subject, and seems now to make no concealment of its desire to see restored that system of mechanical restraint which it has been the honour of English asylums to have abolished. We deeply regret that the policy of so ably conducted a journal has not been inspired by better counsel and fuller knowledge than are evinced in the following article: —

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