Parametric and Combination Resonances of a Pipe Conveying Pulsating Fluid

If M > Mo(c), the exact solution of the problem corresponds to the case of c = 1 and should be identical to the solution presented in [2]. The solution presented by the authors is strictly applicable for the cases in which n < fioiv) and one obtains c < 1. Thus equation (57) in the paper is valid only for p. =S po(v). Consequently, the correct representation of Fig. 6 must have a bounding curve corresponding to a plot of /3 versus v, from equation (2) of this Discussion.