Dynamic instability of a pipe with internal mobile liquid blocks

We consider the problem of parametric vibrations of a rectilinear pipeline with internal mobile liquid blocks. As a result of its solution, we determine the influence of the size of the liquid blocks and their velocity on the character of the loss of stability of the pipe. Ukrainian Transport University, Kiev, Ukraine. Translated from Problemy Prochnosti, No. 3, pp. 114–121, May–June, 1999.