Page 39 - Summer 2006

Douglas Reynolds received his
Ph.D. in Mechanical Engineering
from Purdue University in January
1972. He joined the faculties of the
University of Texas at Austin in
November 1971 as an Assistant
Professor of Architectural
Engineering, the University of
Pittsburgh in August 1977 as an
Associate Professor of Mechanical
Engineering, and the University of
Nevada, Las Vegas (UNLV) in
August 1983 as a Professor of Mechanical Engineering. Dr. Reynolds is the Director of the Center for Mechanical and Environmental Systems Technology in the Howard R. Hughes College of Engineering at UNLV. He has over thirty years of experience in the area of human exposure to vibration and shock and has been involved in standards work in this area since 1978. Dr. Reynolds is currently chair of ANSI Working Group S2.39, Human Exposure to Vibration and Shock. He is also chair of the Technical Advisory Group and Chief U.S. Delegate to ISO TC 108/SC 4, Human Exposure to Vibration and Shock.
ANSI S2.70 is a timely and needed revision of ANSI S3.34 that gives the U.S. a modern hand-transmitted vibra- tion standard that is in agreement with ISO 5349–Parts 1 and 2 and the EU Human Vibration Directive. It has vibration assessment criteria that are accepted by medical experts, sci- entists, and engineers in governmental agencies, research institutions, and industry in the U.S. and other countries. ANSI S2.70 gives guidance for work-related hand-transmit- ted vibration exposure and health risks assessments, specifies methods for mitigating health risks associated with hand- transmitted vibration, and gives guidance for worker training and medical surveillance.AT
References for further reading:
Fig. 2. Plot of Dy as a function of the daily vibration exposure value, A(8).
1
2
3
4
5
ANSI S3.34-1986, American National Standard Guide for the Measurement and Evaluation of Human Exposure to Vibration Transmitted to the Hands (Acoustical Society of America, Melville, NY).
ANSI S2.70-2006, American National Standard Guide for the Measurement and Evaluation of Human Exposure to Vibration Transmitted to the Hands (Acoustical Society of America, Melville, NY).
ISO 5349:1986, Mechanical vibration–Measurement and evalua- tion of human exposure to hand-transmitted vibration (International Organization for Standardization, Geneva, Switzerland).
ISO 5349-1:2001, Mechanical vibration–Measurement and evalu- ation of human exposure to hand-transmitted vibration–Part 1: General requirements (International Organization for Standardization, Geneva, Switzerland)
ISO 5349-2:2001, Mechanical vibration–Measurement and evalua- tion of human exposure to hand-transmitted vibration–Part 2: Practical guidance for measurement at the workplace (International Organization for Standardization, Geneva, Switzerland).
Standards News 37