Download Automated Rendezvous and Docking of Spacecraft (Cambridge by Dr Wigbert Fehse PDF

By Dr Wigbert Fehse

This definitive reference for area engineers presents an summary of the most important concerns governing technique and mating thoughts, and method ideas for rendezvous & docking/berthing (RVD/B). those issues are addressed and defined in a manner that aerospace engineers, scholars or even beginners to the sector can gather a simple knowing of RVD/B.

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Extra resources for Automated Rendezvous and Docking of Spacecraft (Cambridge Aerospace Series)

Example text

In this case, the chaser vehicle may need to return to a hold point at a safe distance, where it can wait until the approach can be resumed. Trajectory design will, therefore, have to take into account the return to such a hold point. , the point from which the closing trajectory is started or a safer point at larger distance from the target, if resolution of the contingency is expected to take more time. 11. 4 Close range rendezvous operations 21 a V-bar hold point on the + or − V-bar side (trajectories (a) and (b)).

Major tasks of this phase are the acquisition of the target orbit, the reduction of approach velocity and the synchronisation of the mission timeline. Far range rendezvous can start when relative navigation between chaser and target is available. 9) is usually a point from which standard rendezvous operations on standard trajectories at a fixed timeline can commence, a feature which is particularly desirable for an automatic rendezvous process. 50m measurement acc. 9. Transfer from phasing orbit to rendezvous drift orbit.

15. −V-bar departure. 06 m/s applied to the departing vehicle by the springs of the docking mechanism. The resulting trajectory would soon leave the departure cone, which has been assumed to have a half cone angle of 10 deg. 05 m/s in the −R-direction to minimise the plume impact on the station. 08 m/s follows after 420 s to keep the vehicle inside the departure corridor. 2 m/s each can be applied without too much impact by the plume on the station. A departure corridor is usually defined for a distance of a few hundred metres, after which the departure trajectory is free to assume any shape, as long as it is moving away from the target.

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