What is eccentricity shaft?

What is eccentricity shaft?

An eccentricity is one of the major factors that affect the entire system by causing whirling of the shaft and premature failure of the shaft at high vibration condition. Such high vibration condition can be controlled by an important technique called vibration-monitoring technique.

What is TSI in turbine?

A Turbine Supervisory Instrumentation System (TSI) is a sophisticated, customisable digital computer system used in heavy industry to monitor active turbines for potential flaws, faults, and failures. This console then relays the data to different monitors and terminals in the control room.

How do you find the eccentricity of a shaft?

Eccentricity is normally measured P/P (Peak to Peak) to agree with previously established conventions. The actual excursion from shaft centerline caused by bow would be one half that measurement or the 0/P (Zero to Peak) measurement.

What is sagging in steam turbine?

2) Sagging of the rotor happens when the rotor is at ambient temperature and barring is not in place so over time the weight of the rotor which is only supported on the rotor bearings allows the rotor to sag in the middle and again the rotor can come into contact with the stator or casing.

What is eccentric operation?

Eccentric turning on a lathe refers to the turning off the center or not on the normal center axis, it can be done on 3 jaw self-centering chuck or 4 jaw chuck in different situations, the 4 jaw chuck with independently moved jaws allows parts to be moved off-center.

What is eccentricity analysis?

Eccentricity is defined as the offset between the axis of rotation and the axis of symmetry. Eccentricity can take place in different types of mechanical elements, such as pulleys, gears and in any relative positioning between two concentric pieces, as for example the rotor and the stator of an electric motor.

Which type of compressor is used in a gas turbine plant?

Multistage axial flow compressor
Which type of compressor is used in a gas turbine plant? Explanation: Multistage axial flow compressor is the compressor in practical usage in a gas turbine plant.

What is rotor eccentricity?

A rotor eccentricity is a condition of unequal air gap that exists between the stator and the rotor [5]. Air- gap eccentricity can occur in the form of static or dynamic eccentricity. In the case of a static eccentricity, the position of minimum radial air- gap length is fixed in space.

What causes shaft bow?

During the cooling process after shutdown, gas turbines can suffer from differential thermal expansion due to buoyant convection. This process can result in asymmetric cooling of the shaft, which can in turn lead to differential thermal expansion, resulting in deformation of the shaft, known as thermal bow.

What is eccentric machining?

Eccentric turning, also known as offset turning, is a type of lathe operation. It is typically used to machine parts with features that are not concentric to the spindle axis, such as the eccentric drive of a steam engine and a crankshaft.