NDLTD Global ETD Search
  • Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 5
  • 4
  • 4
  • 2
  • Tagged with
  • 22
  • 6
  • 5
  • 5
  • 4
  • 4
  • 4
  • 4
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • 3
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

Search results

Showing 21 to 22 of 22 (0.054 seconds)

Spelling suggestions: "subject:"piezoceramic"" "subject:"piezoceramics""

21

Helicopter Vibration Reduction Using Single Crystal And Soft Piezoceramic Shear Induced Active Blade Twist

Thakkar, Dipali 04 1900 (has links) (PDF)
No description available.
Helicopters - Vibration
Piezoceramics - Shear Dynamics
Rotors (Helicopters)
Helicopter Rotor Blades
Rotor Dynamics
Aeroelastic Analysis
Rotating Beams
Helicopters - Aerodynamics
Helicopter - Aeroelasticity
Rotar Blade
Piezoceramic Actuation
Helicopter Vibration Reduction
Helicopter Rotor
Aeronautics
22

Metody bezdemontážní diagnostiky / Methods of Technical Diagnostics

Klusáček, Stanislav January 2012 (has links)
The main objective of the presented thesis is to contribute to the development of diagnostic methods for piezoelectric sensor testing. The thesis describes the methods for piezoelectric sensors microcracks identification and diagnostics. The core of the thesis presents the development of a knock sensor prototype, design of suitable methods for the knock sensors diagnosis and evaluation of developed methods with focus on detection of microcracks in the sensor piezoceramic. The last part of the thesis deals with the influence of cracks and splits on the measured data from the piezoelectric transducer. The presented methods are focusing on impedance measurements and sensors frequency response measurements. Known properties of used piezoelectric material as an information source for measurement and diagnosis are provided. The main result of the work is the evaluation of the methods developed for the piezoelectric sensors self-diagnosis.

Page generated in 0.0588 seconds