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Damping Properties of Steam Turbine Blades

  • N. F. Rieger
Part of the International Centre for Mechanical Sciences book series (CISM, volume 297)

Abstract

This section describes a program of tests to examine the damping properties of several types of steam turbine blades. These studies were conducted in a non-rotating damping test rig which used real blades mounted in corresponding real disk root attachments. Simulated centrifugal loading was applied to the blades as a lengthwise axial pull. The rig and the test program are described. The damping properties of the blades studied were found to conform primarily to effects associated with material hysteresis damping. The influence of attachment friction appears to be negligible for test loads and vibratory amplitudes encountered in practice. A small level of fluid damping from the gas stream appears to be possible where the blades are subject to working pressure loads.

Keywords

Root Coating Dynamic Stress Compressor Blade Axial Vibration Blade Vibration 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1988

Authors and Affiliations

  • N. F. Rieger
    • 1
  1. 1.Stress Technology IncorporatedRochesterUSA

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