The paper describes the approach to the analysis of the influence of the parameters of special purpose vehicles hulls on the natural frequencies and forms of oscillations. For this purpose, parametric models of hulls are constructed. In these hulls, their structure, shape and separate panels thickness are varied. In the course of research of hulls scale models, the change of natural frequencies and forms of fluctuations of special purpose vehicles hulls is investigated. The constructed models make it possible to predict the trends of natural frequencies and forms of oscillations in the design variation of hulls individual parameters. Thus advantages are creating in substantiating rational technical solutions of these hulls by purposeful variation of separate parameters
