Wave propagation effects on the heave dynamics of large air cushion platforms
Abstract
Acoustic effects on the heave dynamics of large air cushion platforms are explored theoretically. The models developed for an axisymmetric geometry show that when the cushion air is fed centrally through an orifice feed hole the stable pressure-flow operating region can be much smaller than that indicated by the commonly used lumped capacitance model which by definition totally ignores acoustic effects.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- August 1982
- Bibcode:
- 1982STIN...8313289H
- Keywords:
-
- Aeroacoustics;
- Flying Platforms;
- Ground Effect Machines;
- Heaving;
- Surface Vehicles;
- Wave Propagation;
- Air Flow;
- Amphibious Vehicles;
- Feeding (Supplying);
- Impedance;
- Motion Stability;
- Numerical Analysis;
- Engineering (General)