Calculating a Worker'S Health Risk for Back Disorders due to Vibration

2000 ◽  
Vol 44 (30) ◽  
pp. 5-613-5-613
Author(s):  
Judy Village ◽  
Murray Lott
Keyword(s):  
European Economic Community ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Vibration Exposure ◽  
Economic Community ◽  
Disc Protrusion ◽  
Council Directive ◽  
Exposure Levels ◽  
Iso 2631 ◽  
Detailed Work

A detailed work and medical history was used to calculate whole-body vibration exposure and total vibration dose for a worker appealing a back injury claim. Comparison was made with 3 standards: ISO 2631 (versions from 1978 to 1997); European Economic Community Council Directive; and the German Federal Ministry of Labour. The worker's exposure levels exceeded all standards often by two-fold or more. Total vibration dose (9137) exceeds the suggested by a factor of 6.5-fold. It is concluded this worker's 15-year vibration exposure accelerated the onset, if not caused the L4–5 disc protrusion.

Whole-body vibration exposure experienced by motorcycle riders – An evaluation according to ISO 2631-1 and ISO 2631-5 standards

2009 ◽  
Vol 39 (5) ◽  
pp. 708-718 ◽  
Author(s):  
Hsieh-Ching Chen ◽  
Wei-Chyuan Chen ◽  
Yung-Ping Liu ◽  
Chih-Yong Chen ◽  
Yi-Tsong Pan
Keyword(s):  
Whole Body Vibration ◽  
Whole Body ◽  
Vibration Exposure ◽  
Body Vibration ◽  
Iso 2631

Some important oversights in the assessment of whole-body vibration exposure based on ISO-2631-1

2012 ◽  
Vol 43 (1) ◽  
pp. 268-269 ◽  
Author(s):  
Ren G. Dong ◽  
Daniel E. Welcome ◽  
Thomas W. McDowell
Keyword(s):  
Whole Body Vibration ◽  
Whole Body ◽  
Vibration Exposure ◽  
Body Vibration ◽  
Iso 2631

scholarly journals WHOLE BODY AND HAND-ARM VIBRATIONS ON OFF-ROAD VEHICLE USED IN ACADEMICALS COMPETITIONS

2017 ◽  
Vol 24 (5) ◽  
pp. 375-382
Author(s):  
Fábio Celso Oliveira ◽  
Geice Paula Villibor ◽  
Joseph Kalil Khoury Junior ◽  
Éder Harisson Ferreira Lima
Keyword(s):  
Whole Body Vibration ◽  
Whole Body ◽  
Vibration Exposure ◽  
Military Operations ◽  
Road Vehicles ◽  
Body Vibration ◽  
Acceleration Level ◽  
Vertical Accelerations ◽  
Warning Limits ◽  
Iso 2631

Off-road vehicles, baja type, are designed for locomotion on irregular terrains with several obstacles, to pull loads with effciency, furthermore, are compact and easy to operate. Such vehicles have wide use in agriculture, construction, transportation and military operations. Baja vehicle provide to pilot an exposure to high levels of mechanical vibrations. With the present work aimed to determine the whole body vibration and hand-arm vibration in the pilot using the vehicle designed by UFVbaja team. The vibrations levels incident on the pilot was measured in three different terrain conditions and different forward speeds. It was determinate the root mean square acceleration and daily vibration exposure at the seat pad and hand-arm of pilot. For whole body vibration was obtained the daily vibration dose value. The values were confronted with standards ISO 2631-1. The acceleration level, normalized to 8 hour, exceeded the warning limits for all worked conditions. To Baja vehicle operating in plowing soil, the transverse and vertical accelerations exceeded the limit level. In general, incident acceleration levels on the pilot were considered high, which reinforces the need for seats projects of suspension, steering and seat that effectively reduce the vibration transmitted to pilot body and hand-arm system.

Whole-Body Vibration Exposure Experienced by Subway Train Operators

1994 ◽  
Vol 13 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Nihat Ozkaya ◽  
Bernardus Willems ◽  
David Goldsheyder ◽  
Margareta Nordin
Keyword(s):  
Whole Body Vibration ◽  
Whole Body ◽  
Vibration Exposure ◽  
Exposure Limits ◽  
Mechanical Vibrations ◽  
Body Vibration ◽  
International Standard ◽  
Train Speed ◽  
Exposure Levels ◽  
Subway Train

Purposes of the study were to measure mechanical vibrations transmitted to train operators, to calculate daily whole-body vibration exposure levels, to compare measured levels with maximum acceptable exposure levels according to the international standard on whole-body vibration, to identify factors that influence vibration levels, and to quantify the effects of these factors on the measured levels. As a result of this study, it was determined that six out of twenty subway lines had vibration levels higher than the daily exposure limits recommended by the international standard, and that train speed was the most significant factor influencing the vibration levels.

Influence of Speed in Whole Body Vibration Exposure in Heavy Equipment Mining Vehicles

2016 ◽  
Vol 60 (1) ◽  
pp. 919-922 ◽  
Author(s):  
Luz S. Marin ◽  
Andrés Rodriguez ◽  
Estefany Rey ◽  
Lope H. Barrero ◽  
Jack Dennerlein ◽  
...  
Keyword(s):  
Whole Body Vibration ◽  
Cross Sectional Study ◽  
Whole Body ◽  
Daily Maximum ◽  
Vibration Exposure ◽  
Cross Sectional ◽  
Body Vibration ◽  
Heavy Equipment ◽  
Vector Sum ◽  
Iso 2631

This study aimed to characterize and contrast the ISO 2631-1 daily average-continuous A(8) and cumulative-impulsive VDV(8) whole body vibration (WBV) exposures during the operation of mining heavy equipment vehicles (HEVs). In a cross-sectional study, WBV measurements were collected from six different types of HEVs. For each HEV, the daily A(8) and VDV(8) WBV exposures were determined for each axis (x, y and z) along with the vector sum (∑xyx).. The predominant axis of vibration exposure was related to and dependent on the type of HEV, which all have different average speeds. Most of the predominant axis WBV exposures were above the ISO daily vibration action limits and the vector sum-based WBV exposures were considerably higher. Our results indicated that mining HEV operators are exposed to high levels of both continuous and impulsive WBV exposures, with the impulsive WBV exposures being more restrictive with respect the HEVs daily maximum operation hours.

scholarly journals Particular aspects regarding the effects of whole body vibration exposure

2018 ◽  
Vol 148 ◽  
pp. 09005 ◽  
Author(s):  
Mihaela Picu ◽  
Laurentiu Picu
Keyword(s):  
Complex System ◽  
Human Performance ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Vibration Exposure ◽  
Vibration Level ◽  
Body Vibration ◽  
Vertical Vibrations ◽  
Iso 2631 ◽  
Whole Body Vibrations

This paper analyses the influence of whole-body vibrations on human performance; for this it was investigated how a group of men (20-29 years of age) and a group of woman (21–31 years of age) answered to specific requirements after being subjected to vertical vibrations under controlled laboratory conditions for 10-25 min. The vibrations were generated by a vibrant system with known amplitudes and frequencies. Accelerations were measured with NetdB - complex system for measuring and analysing human vibration and they were found in the range 0.4 - 3.1m/s2. The subjects’ performances were determined for each vibration level using specific tests. It can be concluded that exposure to vibrations higher than those recommended by ISO 2631 significantly disrupts how subjects responded to tests requirements.

Six-degree-of-freedom whole-body vibration exposure levels during routine skidder operations

Ergonomics ◽  
2010 ◽  
Vol 53 (5) ◽  
pp. 696-715 ◽  
Author(s):  
R. J. Jack ◽  
M. Oliver ◽  
J. P. Dickey ◽  
S. Cation ◽  
G. Hayward ◽  
...  
Keyword(s):  
Whole Body Vibration ◽  
Degree Of Freedom ◽  
Whole Body ◽  
Vibration Exposure ◽  
Body Vibration ◽  
Exposure Levels ◽  
Six Degree Of Freedom
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