Dynamic equations for a spherical shell
Paper i proceeding, 2012

Using a series expansion technique together with recursion relations the dynamic equations for an elastic spherical shell are derived. The starting point is an expansion of the displacement components into power series in the thickness direction relative the mid-surface of the shell. The three-dimensional elastodynamic equations yield recursion relations among these that can be used to eliminate all but the six of lowest order. The boundary conditions on the surfaces of the shell then give the shell equations as a power series in the thickness that can in principle be truncated to any order. The method is believed to asymptotically exact to any order. Comparisons are made with correct three-dimensional theory and other shell theories.

Power series

Dynamic

Eigenfrequency

Spherical shell

Shell equations

Författare

Reza Okhovat

Dynamik

Anders E Boström

Dynamik

11th International Conference on Computational Structures Technology, CST 2012

Vol. 99

Ämneskategorier

Maskinteknik

ISBN

9781905088546

Mer information

Skapat

2017-10-07