On the simulation of fluid spacecraft interactive dynamics

The present report contains a study on the simulation of interactive fluid spacecraft dynamics. The equations of motion of the two dimensional full tank case as well as the corresponding finite different discretized equations are presented. The numerical solution of this system is studied. Results are presented for a number of cases. Based on...

Towards digital computer simulation of the dynamics of flexible spacecraft

Software design for digital computer simulation of the dynamics of flexible spacecraft equipped with actuators and sensors, should take into account two properties of the overall system: (i) s.ampled-data control of the spacecraft leads to discontinuous inputs (forcing functions) in the differential equations of motion, thereby requiring...

Some investigations on the notching procedtire used in shaker tests on satellites

The notching procedure as used in the shaker test on a satellite is critically examined. In stead of the notching procedure an alternative test set-up, in which the dynamic interaction between launcher and spacecraft is taken into account, has been proposed and investigated for a simple model of launcher and satellite. Using this test set-up the...