Active and semiactive vibration damping of turbine blades with piezoceramics

A. Hohl; M. Neubauer; S. M. Schwarzendahl; L. Panning; J. Wallaschek

doi:10.1117/12.815800

6 April 2009 Active and semiactive vibration damping of turbine blades with piezoceramics

A. Hohl, M. Neubauer, S. M. Schwarzendahl, L. Panning, J. Wallaschek

Proceedings Volume 7288, Active and Passive Smart Structures and Integrated Systems 2009; 72881H (2009) https://doi.org/10.1117/12.815800
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

In this paper the damping capability of piezoelectric shunting is analysed for bladings. Beside the broadly used inductance-resistance networks, negative capacitance techniques are considered. For the validation of the theoretic results, a test rig with a model of a bladed disk with eight blades has been manufactured and equipped with two collocated piezoceramics at each blade. One of the piezoceramics is used as an actuator for an engine order excitation. The second piezoceramics is used for shunt damping. The experimental results of the test rig are compared with numerical results. Therefore, the structure and the piezoceramics are modeled in a finite element program. The modal excitation forces of the piezoelectric actuators are derived for all modes of the structure by a static analysis with a specific voltage applied to the piezoceramics. In addition, using the modal displacement field of the static analysis the modal excitation forces can be calculated. Furthermore, the number of degrees of freedom of the system is reduced by a modal reduction technique. The electrical behavior of the piezoceramics connected to each blade is modeled by one degree of freedom and coupled with the mechanical system described above. The different damping concepts are compared with respect of their effectiveness.

Citation Download Citation

A. Hohl, M. Neubauer, S. M. Schwarzendahl, L. Panning, and J. Wallaschek "Active and semiactive vibration damping of turbine blades with piezoceramics", Proc. SPIE 7288, Active and Passive Smart Structures and Integrated Systems 2009, 72881H (6 April 2009); https://doi.org/10.1117/12.815800

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available