SELF-EXCITED VIBRATION IN HIGH-PERFORMANCE TURBOMACHINERY. Academic Article

abstract

• Instabilities impose a continuing restraint on the performance capabilities of turbomachinery and continue to cause difficulties in the design and operation of high-performance turbomachinery, particularly because the underlying causes are exacerbated by design trends to higher loadings, lighter weight, higher speeds, and closer clearances between static and rotating parts. Synchronous versus subsynchronous motion, internal rotor damping, hydrodynamic bearings, labyrinth seals, liquid seals for pumps, blade/aerodynamic interaction forces, and fluid trapped in rotors are discussed. Diagnostic methods and design approaches to avoid problems are included.

authors

• Childs, Dara

published proceedings

• Mechanical Engineering

author list (cited authors)

• Ehrich, F., & Childs, D.

complete list of authors

• Ehrich, F||Childs, D

publication date

• January 1984

published in

• Mechanical engineering (New York, N.Y. : 1919)  Journal

start page

• 66

end page

• 79

volume

• 106

issue

• 5