The dynamical of composite tubes including internal damping.

Autor: Al-Esawy, Sara Salim, Al-Rajihy, Ahmed Abdullah, Sadeq, Basim Raheem
Předmět:
Zdroj: AIP Conference Proceedings; 2023, Vol. 2834 Issue 1, p1-7, 7p
Abstrakt: One of the important influences on the composite tube is the internal damping force, this force is opposite to the fluid force inside the composite tube. In this paper, the dynamics of the effect of internal damping on the composite tube carrying the fluid was studied using the analytical method to find the equation of motion for the composite tube with the effect of internal damping. Some external influences, such as temperature and the viscous damping coefficient between the surrounding surface of the tube and the composite tube resulting from internal friction between them were neglected. Taking the effect of internal damping on the individual types of support; simply support, clamped support, clamped - pinned support, and Intermediate support. It was found that internal damping reduces the natural frequency of the composite tube with values less than the general limit of the natural frequency without taking the effect of internal damping. Based on the foregoing, Internal damping has been determined to be inversely related to the installed tube's natural frequency with constant tumble speed. When the rate changes without consideration for external effects, the internal damping effect is enhanced, and the inherent frequency value is spread. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index