ENGINEERING THE HEALTH, SAFETY AND COMFORT OF DUMP TRUCK OPERATORS

摘要

Dump truck operators are exposed to whole-body vibration (WBV) levels that exceed the International Standard Organization (ISO) 2631-1. The WBV level measured by RMS acceleration value, for operator comfort, and long-term health and safety is under 0.315 m/s~2 by these standards. However, fundamental research by Frimpong and Aouad (2009, 2012) and field experimental study by Kumar (1999) have shown that operators are exposed to extreme WBV levels exposing them to injuries and musculoskeletal diseases in the long-term. These extreme WBV values in the vertical direction are equal to 3.56 m/s~2, 1.12 m/s~2 and 0.87 m/s~2 for the operator's seat, lower-back and cervical regions, respectively. This paper will outline current research to solve these problems.