Vibration diagnostic test for effect of unbalance

The significance of the preventive maintenance is increasing in every area of the life, for example education and production industry. When we are using a rotating machine or a mechanical structure there are many forces and torques which load it, and create mechanical vibrations. This paper presents a very useful method of the preventive maintenance vibration diagnostic with test of moving-animation. We can see and understand the moving of the machines and the mechanical structures by the moving-animation software and a vibration analyzer instrument when they vibrate. The result of this method helps to make faster and more correct diagnosis of the damage. This article shows the basic knowledge of the vibration diagnostic with animation program, and two case studies from my practice. The case studies show the moving of the machines in case of mechanical problems. Through the case studies we can see two significant applications. The first one is an example of three unbalanced discs on a test bench, and the second one is a special unbalance problem of a rotating machine in the industry.