Analysis of Vibration Transmitted from Grinding Machine to Hand Arm System

Abstract

From power hand tools to hand-arm systems, there are many occupational diseases associated with vibration transmission. People who have worked for a long time with the formal exposure of vibration companies suffer from trembling white fingers (VWF). These hazards are mainly due to the extreme exposure of vibrations spread from the grinding machine to the hand-held system. International standards have been developed to assess the risk of injury after exposure to these types of vibrations. The current standards recognize that aspects such as the effect of vibration transmission direction, arm posture, hand grip or force need to be investigated. The mathematical model of five DOF hand arm system was studied and simulation was done by using SIMULINK software. Displacement verses Time graphs were plotted to find at what frequency maximum amplitude existed and it was seen at frequency 10 Hz.