Marshall Hall

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Questions related from Marshall Hall

Spherical shell (submerged) - what is the best model for acoustic resonance frequency and sound scattering?

The shell is made of metal, the inside and exterior are inviscid fluids. The ratio of shell thickness to radius (h/a) ranges from 0.5 % to 2 %. I have written Fortran programs for the models...

25 May 2021 4,632 1 View

If a circular disc with hole at centre is compressed axially, how will its stiffness compare with a disc with no hole?

The practical application is response of a cushion in a pile driver. All such cushions are compressed axially. Cushions are circular discs of fibre-reinforced synthetic resin; some types are solid...

22 October 2018 5,448 2 View

Cylindrical shell motion models for axisymmetric vibration of a pipe pile in air

After some runs with my analytical underwater pile noise model CAMPRADOP using different cylindrical-shell motion models a few years ago, I came to believe that for axisymmetric shell vibration (n...

01 January 1970 7,962 0 View