Simulation of a LT trajectory

This forum is for discussing the implementation of low thrust optimization.

Simulation of a LT trajectory

Postby Jorisatesa » Sat Jun 12, 2010 10:06 am

I am trying to simulate an optimal low-thrust trajectory, trying to reproduce a trajectory coming from one of my optimisation software (script for GMAT attached).

I am experiencing difficulties to actually change the thrust amplitude (and maybe also the thrust direction).
I have the impression that the thruster properties cannot be changed during the execution of the mission sequence.
Is it the good approach ?

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Re: Simulation of a LT trajectory

Postby shughes » Wed Jul 21, 2010 3:20 pm

there is a subtle interface issue causing the problem. When you attach a thruster to a spacecraft using this line:
Code: Select all
GMAT DefaultSC.Thrusters = {Thruster1}

The spacecraft has its own local copy of the Thruster1 Object. To change the thrust vector for Thruster1 on DefaultSC use this line

Code: Select all
GMAT DefaultSC.Thruster1.ThrustDirection1

Sorry for the slow response :cry:
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Re: Simulation of a LT trajectory

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Re: Simulation of a LT trajectory

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