Stability of Rotor-Bearing-Seal Systems
Effects of Labyrinth Seals
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In various industrial applications, there is a needfor higher speed, yet reliably operating rotatingmachinery. A key factor in achieving this type ofmachinery continues to be the ability to accuratelypredict the dynamic response and stability of arotor-bearing-seal system. In operation, the rotorundergoes bending and torsional vibration. Thevibration of a rotor depends upon its geometry andtype of support, as well as on the excitation forces.One of the most important sources for excitation isthe flow through labyrinth seals. The gas flowthrough the seals, primarily intended for leakagecontrol ...
In various industrial applications, there is a need
for higher speed, yet reliably operating rotating
machinery. A key factor in achieving this type of
machinery continues to be the ability to accurately
predict the dynamic response and stability of a
rotor-bearing-seal system. In operation, the rotor
undergoes bending and torsional vibration. The
vibration of a rotor depends upon its geometry and
type of support, as well as on the excitation forces.
One of the most important sources for excitation is
the flow through labyrinth seals. The gas flow
through the seals, primarily intended for leakage
control in turbines, creates net pressure and shear
forces acting on the rotor. It is necessary to
predict these forces exactly for reliably operating
turbomachines. This book, therefore, provides
theoretical investigation of the gas flow in
straight-through labyrinth seals and its effect on
the stability of the rotor. In addition, stability of
rotor-bearing systems is given to introduce and
explain the nature of rotordynamic phenomena from
comparatively simple analytical models. This book
will no doubt be of value to graduate students and
researchers in engineering and applied sciences.
for higher speed, yet reliably operating rotating
machinery. A key factor in achieving this type of
machinery continues to be the ability to accurately
predict the dynamic response and stability of a
rotor-bearing-seal system. In operation, the rotor
undergoes bending and torsional vibration. The
vibration of a rotor depends upon its geometry and
type of support, as well as on the excitation forces.
One of the most important sources for excitation is
the flow through labyrinth seals. The gas flow
through the seals, primarily intended for leakage
control in turbines, creates net pressure and shear
forces acting on the rotor. It is necessary to
predict these forces exactly for reliably operating
turbomachines. This book, therefore, provides
theoretical investigation of the gas flow in
straight-through labyrinth seals and its effect on
the stability of the rotor. In addition, stability of
rotor-bearing systems is given to introduce and
explain the nature of rotordynamic phenomena from
comparatively simple analytical models. This book
will no doubt be of value to graduate students and
researchers in engineering and applied sciences.
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