Method for the fuel-optimized selection of a thruster configuration
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United States of America Patent
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Aug 22, 2006
Grant Date -
Apr 14, 2005
app pub date -
Aug 7, 2003
filing date -
Aug 8, 2002
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Abstract
The invention describes a method for the fuel-optimized selection of a configuration of thrusters on a spacecraft while resolving a linear optimization problem with an initialization phase for finding a first permissible solution and a subsequent iteration phase, in which proceeding on the permissible solution an iterative optimization of an efficiency criterion takes place. In each iteration step a scaled iteration gradient is formed, and the iteration gradient is multiplied with a limiting factor for a maximum iteration step width, which is formed while taking at least one boundary value condition for a permissible solution into account.
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