The friction damper has been widely used to reduce the resonant vibration of blades. The most commonly used methods for studying the dynamic behavior of a blade with a friction damper are direct integration methods. Although the harmonic balance method (HBM) is a well-known method for studying nonlinear vibration problems, generally only a one-term approximation has been proposed to study the nonlinear vibration of a frictionally damped blade. In this work, a HMB procedure with a multiterm approximation is proposed. The results show that the steady-state response and other related behavior of a frictionally damped blade can be predicted accurately and quickly by an HBM with a multiterm approximation.
Issue Section:
Research Papers
Topics:
Blades,
Dampers,
Friction,
Vibration,
Approximation,
Nonlinear vibration,
Resonance,
Steady state
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Copyright © 1993
by The American Society of Mechanical Engineers
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