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Today the human body is exposed to vibration not only while traveling but also during leisure and domestic activities and in many occupations. This volume summarizes the current understanding of the many human responses to vibration.Divided into two parts, this book deals with whole-body vibrations and hand-transmitted vibration. In each part the experimental data and appropriate models are presented in detail so that readers can address practical problems. An extensive guide to national and international standards is provided, and a large multidisciplinary glossary of terms assists in understanding the relevant technical and medical jargon.This comprehensive reference volume is accessible to all those interested in human vibration: medical doctors, engineers, lawyers, scientists, and health and safety officials and administrators.LK uses the following bulleted list_This new text features:An up-to-date statement of current knowledge on human responses to vibrationA comprehensive glossary of terms in current use in the fields of vibration and human responseAn extensive bibliography and guide to national and international standards
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This project aimed to develop a methodology for evaluating performance and acceptability characteristics of the pressurized crew module volume suitability for zero-gravity (g) ingress of a spacecraft and to evaluate the operational acceptability of the NASA crew return vehicle (CRV) for zero-g ingress of astronaut crew, volume for crew tasks, and general crew module and seat layout. No standard or methodology has been established for evaluating volume acceptability in human spaceflight vehicles. Volume affects astronauts' ability to ingress and egress the vehicle, and to maneuver in and perform critical operational tasks inside the vehicle. Much research has been conducted on aircraft ingress, egress, and rescue in order to establish military and civil aircraft standards. However, due to the extremely limited number of human-rated spacecraft, this topic has been unaddressed. The NASA CRV was used for this study. The prototype vehicle can return a 7-member crew from the International Space Station in an emergency. The vehicle's internal arrangement must be designed to facilitate rapid zero-g ingress, zero-g maneuverability, ease of one-g egress and rescue, and ease of operational tasks in multiple acceleration environments. A full-scale crew module mockup was built and outfitted with representative adjustable seats, crew equipment, and a volumetrically equivalent hatch. Human factors testing was conducted in three acceleration environments using ground-based facilities and the KC-135 aircraft. Performance and acceptability measurements were collected. Data analysis was conducted using analysis of variance and nonparametric techniques.
Here's an in-depth, design practitioner's study of helmet-mounted display and sight technology (HMD/HMS). This unique combination of advanced optics, computing, and electronics gives users a continuous, hands-free display of computer, 3-D, or virtual imaging. Authored by a leading aerospace engineer, Helmet-Mounted Displays and Sights takes a comprehensive look at this increasingly popular technology -- from the human factors associated with the use of HMDs, to design requirements of HMD/HMS, to new and future advances in image source and display technology, and more.
Writing on accidental injury often seems to occur from one of two perspec tives. One perspective is that of those involved in aspects of injury diagnosis and treatment and the other is that of those in the engineering and biologic sciences who discuss mechanical principles and simulations. From our point of view, significant information problems exist at the inter face: Persons in the business of diagnosis and treatment do not know how to access, use, and evaluate theoretical information that does not have obvious practical applications; persons on the theoretical side do not have enough real life field data with which to identify problems or to evaluate solutions. The ideal system provides a constant two-way flow of data that permits continuous problem identification and course correction. This book attempts to provide a state-of-the-art look at the applied bio mechanics of accidental-injury causation and prevention. The authors are recognized authorities in their specialized fields. It is hoped that this book will stimulate more applied research in the field of accidental-injury causation and prevention. Alan M. Nahum John W. Melvin vii Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . vii . . . . . . . . . . . . . . . . . Contributors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi . . . . . . . . . . . . . . . . . Chapter 1 The Application of Biomechanics to the Understanding of Injury and Healing .................................. 1 Y. C. Fung Chapter 2 Instrumentation in Experimental Design . . . . . . . . . .. . . . 12 . . Warren N. Hardy Chapter 3 The Use of Public Crash Data in Biomechanical Research 49 Charles P. Compton Chapter 4 Anthropomorphic Test Devices. . . . . . . . . . . . . . . .. . . 66 . . . . . Harold J. Mertz Chapter 5 Radiologic Analysis of Trauma . . . . . . . . . . . . . . . .. . . 85 . . . . .
Two of the most acclaimed reference works in the area of acoustics in recent years have been our Encyclopedia of Acoustics, 4 Volume set and the Handbook of Acoustics spin-off. These works, edited by Malcolm Crocker, positioned Wiley as a major player in the acoustics reference market. With our recently published revision of Beranek & Ver's Noise and Vibration Control Engineering, Wiley is a highly respected name in the acoustics business. Crocker's new handbook covers an area of great importance to engineers and designers. Noise and vibration control is one largest areas of application of the acoustics topics covered in the successful encyclopedia and handbook. It is also an area that has been under-published in recent years. Crocker has positioned this reference to cover the gamut of topics while focusing more on the applications to industrial needs. In this way the book will become the best single source of need-to-know information for the professional markets.