| Popis: |
A physics-based modeling and simulation tools for dynamic tethered loads has been developed for use in slung loads and airdrops. The model, validated with flight tests, has shown that the unsteady wind and vehicle degrees of freedom are important in determining the instabilities of the tethered model. Further assessment of the atmospheric turbulence on the model in six degrees of freedom motion is presented, and a random statistical turbulence model by Dryden is assessed and verified in comparison with flight test data of a CONEX container. The importance of the random number generator is discussed, and improvements to the computational speed, without loss of accuracy result in a model with 1.12:1 speed comparable to real time. |
