Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Implications of using colocated strain-based transducers for output active structural acoustic control.

J S Vipperman1, R L Clark

  • 1Department of Mechanical Engineering, University of Pittsburgh, Pennsylvania 15261, USA.

The Journal of the Acoustical Society of America
|September 18, 1999
PubMed
Summary

Large piezoceramic transducers improve active vibration control by acting as low-pass filters. This enhances direct rate feedback (DRFB) control performance on smart structures, reducing control effort for better vibration suppression.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Health Physics Division. Applied Health Physics Annual Report for 1961.

ORNL. U.S. Atomic Energy Commission·2014
Same author

Economic well-being of the elderly: Theory and measurement.

Journal of cross-cultural gerontology·2014
Same author

Labor force participation at older ages in the Western Pacific: A microeconomic analysis.

Journal of cross-cultural gerontology·2014
Same author

The evolution of the treatment of pilonidal cysts and sinuses.

The Journal of the Indiana State Medical Association·2010
Same author

Roles of affinity and lipophilicity in the slow kinetics of prostanoid receptor antagonists on isolated smooth muscle preparations.

British journal of pharmacology·2010
Same author

Hyperparathyroidism and pregnancy.

American journal of surgery·2010

Area of Science:

  • Smart Structures
  • Active Vibration Control
  • Structural Acoustics

Background:

  • Piezoceramic transducers are key components in smart structures for active vibration and acoustic control.
  • These transducers perform spatial differentiation, emphasizing higher-frequency modes and increasing structural compliance with frequency.
  • This frequency-dependent compliance significantly impacts the performance of colocated direct rate feedback (DRFB) control.

Purpose of the Study:

  • To investigate the impact of piezoceramic transducer size on DRFB control performance.
  • To analyze the filtering characteristics of rectangular piezoceramic transducers.
  • To explore methods for improving DRFB control in smart structures.

Main Methods:

  • Analysis of piezoceramic transducers as low-pass wave number filters.

Related Experiment Videos

  • Investigating the relationship between transducer aperture size and cutoff frequency.
  • Developing analytical models for open and closed-loop control of a plate piezostructure.

    • Main Results:

    • Rectangular piezoceramic transducers function as low-pass filters, with cutoff frequency inversely proportional to aperture size.
    • Increasing transducer size relative to the structure significantly improves DRFB performance and reduces control effort.
    • Dynamic compensation can achieve good performance but increases computational complexity.

    Conclusions:

    • Optimizing piezoceramic transducer size is crucial for effective DRFB control in smart structures.
    • Larger transducers enhance coupling with lower-frequency modes, leading to more efficient vibration control.
    • Alternative strategies like dynamic compensation are viable when large apertures are impractical.