Experimental study of a self-excited vibration of a pipe conveying fluid

Lateral vibration of a pipe conveying fluid has become a generic problem of a self-excited vibration of a continuous body. In this paper, we conduct some experiments of the self-excited pipe vibration due to the internal fluid flow using the attached end mass as a control parameter. The experiments are conducted with the silicon rubber pipe and the internal fluid is water. The non-contact 3-dimensional measurements of the lateral deflections are done with the image processing system which is composed of two CCD cameras, light source, reflector and computer. We clarify some non-planar vibrations (chaotic vibrations and mixed modal vibrations). (author)