Search
Now showing items 1-4 of 4
Nonlinear Damage Localization in Structures Using Nonlinear Vibration Modulation of Ultrasonic-Guided Waves
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper proposes a method for nonlinear damage localization in the beam and plate structures with nonlinear vibration modulation of ultrasonic-guided waves. In the proposed technique, the damaged metal beam and plate ...
Separating Multiple Moving Sources by Microphone Array Signals for Wayside Acoustic Fault Diagnosis
Publisher: American Society of Mechanical Engineers (ASME)
Abstract: Wayside acoustic defective bearing detector (ADBD) system is a potential technique in ensuring the safety of traveling vehicles. However, Doppler distortion and multiple moving sources aliasing in the acquired acoustic ...
Enhanced Rotating Machine Fault Diagnosis Based on Time Delayed Feedback Stochastic Resonance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The faultinduced impulses with uneven amplitudes and durations are always accompanied with amplitude modulation and (or) frequency modulation, which leads to that the acquired vibration/acoustic signals for rotating machine ...
Doppler Shift Removal Based on Instantaneous Frequency Estimation for Wayside Fault Diagnosis of Train Bearings
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The phenomenon of Doppler shift in the acoustic signal acquired by a microphone amounted beside the railway leads to the difficulty for fault diagnosis of train bearings with a high moving speed. To enhance the condition ...