A mathematical model of the orbital maneuvering vehicle

Article Abstract:

A mathematical model was designed and developed of the Orbital Maneuvering Vehicle (OMV), a critical part of the OMV man-in-the-loop simulation at Marshall Space Flight Center, Huntsville, Alabama. The OMV evaluator is a full-scale, six-degree-of-freedom simulator that can replicate the motion of the actual OMV spacecraft in orbit. Translational and rotational equations of motion that model the OMV are presented. Simulation results that verify the correctness of the model are also given. This high-fidelity simulator is valuable for crew training, developing and testing new teleoperated equipment, and verification of the OMV final design. The evaluator also serves as an important test ground for determining the capabilities of the OMV in performing orbital operations. (Reprinted by permission of the publisher.)

Space flight, Flight Simulator

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A simulation of satellite motion for the study of cross-link pointing, acquisition, and tracking

Article Abstract:

A simulation for analyzing the orbits and crosslink parameters of any arbitrary combination of satellites is developed and presented. Primary consideration is given to the extraction of parameters critical to the pointing, acquisition, and tracking between satellites. This simulation is general in configuration and allows for arbitrary orbital parameters for the satellites. In addition, a computationally attractive method of determining when any two arbitrary satellites are visible to each other is developed. (Reprinted by permission of the publisher.)

Technology, Tracking systems (Navigation), Product introduction, Satellites (Astronomical bodies), Astrophysics, Satellites, New Technique, Tracking Systems

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Simulation of single tether systems

Article Abstract:

A simulation of an orbiting single tether system composed of two subsatellites and a connecting tether is developed. The dynamics of the tethered system is modelled using a series of mass beads interconnected by springs and dash pots. The bead model allows the tether to become slack (no tension) and to deform to an arbitrary shape. Simulation results are presented and discussed for two types of motion: (1) tether vibrations and (2) end mass retrieval. (Reprinted by permission of the publisher.)

Satellite communications, Aerospace industry, Communications satellites, Technical, Time and motion studies, Space Craft, Time and Motion Study

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