INVESTIGATION OF PRESSURE PULSATIONS AND POWER LOADS IN THE COMPENSATOR WITH THE AIM OF REDUCING VIBRATION TRANSFER IN A PIPELINE WITH A LIQUID

The authors have developed and investigated experimentally physical and mathematical models to calculate pressure pulsations and dynamic loads produced by them, which determine vibration transfer through compensators of pipelines with a liquid. The loads caused by pressure pulsations may substantially increase with frequency. Consideration has been given to vibration transfer over the structure of the compensator′s elastic elements. The authors have shown analytically and have confi rmed experimentally the presence of a broad frequency range, in which the compensation of the forces transferred over the structure by the forces from pressure pulsations occurs. Vibration transfer may be reduced ten or more times compared to the transfer over the structure of the compensator with a liquid. The revealed phenomenon has been explained physically, and the ways of using it in practice have been proposed. At frequencies exceeding this range, the presence of the liquid enhances vibration transfer through the compensator
The authors have developed and investigated experimentally physical and mathematical models to calculate pressure pulsations and dynamic loads produced by them, which determine vibration transfer through compensators of pipelines with a liquid. The loads caused by pressure pulsations may substantially increase with frequency. Consideration has been given to vibration transfer over the structure of the compensator′s elastic elements. The authors have shown analytically and have confi rmed experimentally the presence of a broad frequency range, in which the compensation of the forces transferred over the structure by the forces from pressure pulsations occurs. Vibration transfer may be reduced ten or more times compared to the transfer over the structure of the compensator with a liquid. The revealed phenomenon has been explained physically, and the ways of using it in practice have been proposed. At frequencies exceeding this range, the presence of the liquid enhances vibration transfer through the compensator
Author:  A. V. Kiryukhin, O. O. Mil′man, A. V. Ptakhin, L. N. Serezhkin, and S. A. Isaev
Keywords:  pipeline, compensator, vibration, vibrational rigidity, dynamic force, oscillation frequency, working medium, pressure pulsation, elastic element, structural rigidity
Page:  1517