Wind turbines are prone to vibration problems. According to research data, about 40% of all wind turbines have high vibrations which exceed vibration limits. These vibrations cause structural loads, increased wear, adverse start-up conditions, and often vibration-related shutdowns.
MARCH 14th (3-14) The number Pi (π) is a mathematical constant describing the ratio of a circle’s circumference to its diameter, approximately equal to 3.14. It is commonly used in formulas for geometry and trigonometry; it is also an important constant in many scientific fields,
Torsional vibration is the angular oscillation of a rotating object such as a drive shaft, caused by fluctuating torsional levels. It is a common occurrence in power transmission systems such as engines and automotive drivetrains. Torque transmission is rarely “smooth” since the torque in the system
An overhung machine is one where the fan or impeller lies outside of the bearings that support the shaft. Figure 1, below, shows an illustration of an overhung impeller. Figure 1. Overhung impeller connected to a motor Overhung machines tend to have high 1X
Worker in industries such as construction, mining, manufacturing and agriculture are at particular risk of exposure to potentially unsafe vibration levels. Exposure can be caused from operation of rotating, reciprocating, and percussive machinery and tools.
Bearings are used to constraint relative motion between two parts or more and carry load during operation. There are many bearing types and each type has its own use.