Acoustic monitoring of tube vibration

Details Acoustic monitoring of tube vibration Acoustic monitoring of tube vibration

1983-10-31

1985-06-18

Levy, Stewart J.

Measuring and testing

Vibration

Resonance, frequency, or amplitude study

116 70, 116112, 165 11R, 165 40, 376245, G05D 1900

Patent

active

045234663

ABSTRACT:
The tubes of tube and shell heat exchangers destructively vibrate at certain velocities with which fluid flows over their outside surfaces. An acoustic generator is positioned to respond to the fluid vibrations generated by the tubes. The structure of the acoustic generator is sized and arranged to produce a modulated tone representative of tube vibration. A detector mounted external the heat exchanger shell responds to the tone to initiate corrective action which will reduce the tube vibration.

REFERENCES:
patent: 3106092 (1963-10-01), Shapiro

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