Dynamics and Strength of Pneumatic Valve Made of Composite

V. V. Eliseev, V. A. Piskunov

Abstract


We consider elastic vibrations and waves arising while hitting the elements of the high-speed valve of pneumatic sea line-thrower. We determine the effective stiffnesses of the valve material by the methods of mechanics. A new calculating technique for the energy of a representative volume element is proposed. We determine the force of hitting as a function of time using the solution of the one-dimensional dynamical problem with operational method. We use the calculation scheme of shell of revolution to analyze the dome vibrations. A new variant of the Kirchhoff theory formulated with the Lagrange mechanics is applied. The tensor equations of the theory of shells are trans-formed to the component form. We solve them by the Ritz–Kantorovich variational method with computer mathematics. A benchmark example of calculating the displacements and the stresses in the shell is presented

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References


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DOI: http://dx.doi.org/10.24892/RIJIE/20170306

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