منابع مشابه
Measurement and Analysis of Low Frequency Vibration
Low frequency vibration occurs especially in ground transportation, either as a cause in adjacent environment or within the vehicle itself. The piezoelectric accelerometers commonly used for vibration measurement are not suitable, hence other sensors capable of measuring accelerations down to sub-hertz region have to be used. Based on some previous experience with MEMS acceleration sensors a th...
متن کاملDiagnosis of Industrial Gearboxes Condition by Vibration and Time-frequency, Scale-frequency, Frequency-frequency Analysis
In the article methods of vibroacoustic diagnostics of high-power toothed gears are described. It is shown below, that properly registered and processed acoustic signal or vibration signal may serve as an explicitly interpreted source of diagnostic symptoms. The presented analysis were based on vibration signals registered during the work of the gear of a rolling stand working in Katowice Steel...
متن کاملNotes on Vibration Design for Piezoelectric Cooling Fan
This paper discusses some notes on the vibration design for the piezoelectric cooling fan. After reviewing the fundamental formulas of the cantilever Euler beam, it is not easy to find the optimal design of the piezoelectric fan. The experiments also show the complicated results of the vibration behavior and air flow. Keywords—Piezoelectric cooling fan, vibration, cantilever Euler beam, air flow.
متن کاملDetailed Vibration Analysis of Pinion Gear with Time- Frequency Methods
Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientific and Technical Information (STI) Program Office plays a key part in helping NASA maintain this important role. The NASA STI Program Office is operated by Langley Research Center, the Lead Center for NASA's scientific and technical information. The NASA STI Program Office provides ...
متن کاملAnalysis of the Vibration Signal Using Time-frequency Methods
Condition monitoring (CM) is an essential technique used for monitoring various systems and system components and is supplemented with other techniques, such as video monitoring. Due to the fact that the acceleration signal is suitable for acquisition and is of non-stationary nature, CM is used to monitor various parameters of a monitored system. In order to process the acquired vibration signa...
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ژورنال
عنوان ژورنال: Journal of Vibration and Acoustics
سال: 1989
ISSN: 1048-9002,1528-8927
DOI: 10.1115/1.3269809