【STK】AGI STK's Astrogator: Trajectory Design with SNOPT Optimizer

合集 · proj Sedna(90377) (5)

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  3. 37:35
    【STK】AGI STK's Astrogator: Trajectory Design with SNOPT Optimizer
  4. 1:00:39
    【STK】AGI STK's Astrogator: Mission to Sun-Earth L1
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    【STK】Ansys STK 12.2版本配置完成
Description
Trajectory Design with SNOPT Optimizer
Capabilities Covered
This lesson covers the following STK Capabilities:

STK Pro
Astrogator
Problem Statement
Engineers and operators need to model raising a satellite's perigee using a single finite burn. You'd like to optimize the burn by minimizing the change in velocity required so you can minimize the amount of fuel required. You plan to focus on finding the optimal true anomaly for the finite burn to accomplish this.
You have some information on the satellite's initial state and an outline for the burns you plan to make in order to accomplish the mission requirements. Here are the initial state values you have available:

Options&Values: Periapsis Radius6778 kmEccentricity0.4 kmInclination45 degrees
Solution
Use STK's Astrogator capability and its Sparse Nonlinear Optimizer (SNOPT) to:

Propagate the satellite's orbit until it reaches a certain true anomaly (the optimum value will be determined).
Adjust the burn time until the resulting orbit has a radius of perigee equal to 10,000 km.
Propagate the orbit until it reaches perigee.
What You Will Learn
Upon completion of this tutorial, you will be able to:

Set Controls and Objectives for an analysis
Run SNOPT
Generate a maneuver summary report
Video Guidance
Watch the following video. Then follow the steps below, which incorporate the systems and missions you work on (sample inputs provided).

Comments

鸡排大亨 2023-11-13

这么好,为什么不火?