Investigations on vibrations of a pipe caused by acetylene denotations using laser velocimetry

Axel Sperber; Hans-Peter Schildberg; Steven Schlehlein

doi:10.1117/12.248649

23 August 1996 Investigations on vibrations of a pipe caused by acetylene denotations using laser velocimetry

Axel Sperber, Hans-Peter Schildberg, Steven Schlehlein

Proceedings Volume 2868, Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications; (1996) https://doi.org/10.1117/12.248649
Event: Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, 1996, Ancona, Italy

Abstract

The load acting on the wall of a pipe by a throughgoing detonation is not yet well characterized. Reasons are the limited amount of data on sufficiently accurate pressure/time traces of the detonation peak and the requirement of considering the dynamics of the system instead of just doing a static approach. To determine the dynamic response of the pipe wall on a detonation we performed laser velocimetric measurements and compared the results to theoretical calculations. There is good agreement between measured and predicted values of vibration frequencies, amplitudes and vibration velocities. Furthermore it was found that various radial vibration modes other than the fundamental one ((phi) -symmetry) are excited. This must be attributed to the complex structure of the detonation front which is not just a plane of high pressure oriented vertical to the axis of the pipe.

Citation Download Citation

Axel Sperber, Hans-Peter Schildberg, and Steven Schlehlein "Investigations on vibrations of a pipe caused by acetylene denotations using laser velocimetry", Proc. SPIE 2868, Second International Conference on Vibration Measurements by Laser Techniques: Advances and Applications, (23 August 1996); https://doi.org/10.1117/12.248649

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