Vibration in Boat Propellers

Boat propellers are mostly cast and made from various alloys. Porosity and shrinkage are usually formed during casting processes, and foreign materials or inclusions are often observed in cast propellers. These manufacturing defects generate mass imbalance in the propellers. Static balancing is required to balance the propellers by…

read more

Hand-Arm Vibration and Power Tools

Power tools have been known to induce the risk of vibration-related diseases. An acute disease that is caused by regular exposure to hand-arm vibration (HAV) is known as white finger or Raynaud’s disease. There are also other vibration-related diseases such as: permanent and painful numbness…

read more