Computational Hohmann Transfer on MapleSoft

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SUMMARY

The discussion focuses on implementing a computational Hohmann transfer orbit from Earth to Mars using MapleSoft. The user successfully plotted the elliptical orbits of Earth and Mars utilizing the Verlet Algorithm but encountered difficulties applying the ΔV equation for the Hohmann transfer. The equation presented is ΔV = sqrt(2*mu(sun)) * sqrt(R2 / (R1 * (R1 + R2))), where R1 and R2 represent the aphelion radii of Earth and Mars, respectively. The user seeks alternative equations and methods to decompose the ΔV equation into X and Y components for accurate trajectory calculations.

PREREQUISITES
  • Understanding of orbital mechanics and Hohmann transfer principles
  • Familiarity with the Verlet Algorithm for simulating orbits
  • Knowledge of celestial mechanics, specifically elliptical orbits
  • Proficiency in using MapleSoft for computational modeling
NEXT STEPS
  • Research alternative equations for interplanetary Hohmann transfers
  • Learn how to implement orbital mechanics in MapleSoft
  • Study methods for decomposing velocity vectors into X and Y components
  • Explore advanced simulation techniques for elliptical orbits
USEFUL FOR

Aerospace engineers, astrophysicists, and students in orbital mechanics who are interested in simulating interplanetary travel and optimizing transfer orbits.

Lane Dillon
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Hi,

I am trying to recreate an Interplanetary Hohmann transfer orbit from Earth to Mars similar to image A below (the red line). However, Earths orbit is not circular, It is more of an elliptical orbit rather than circular. I was able to successfully plot the orbits of both Earth and Mars correctly using the Verlet Algorithm (Image B), but I am having trouble with the Hohmann transfer. So far I've been trying to use the following equation but have not had any luck:

ΔV = sqrt(2*mu(sun)) * sqrt( R2 / (R1 * (R1+R2) ) )
R1 = radius of Earth orbit around sun (Aphelion)
R2 = radius of Mars orbit around sun (Aphelion)

Does anyone have any other possible equations to describe an interplanetary Hohamnn transfer? How would I use the above equation as a function of both orbits (Mars and Earth)? How could I split the above equation into X and Y components?

Thanks for the help!

Image A:
PE4WH.png

Image B:
upload_2018-5-7_22-36-50.png
 

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Why the equation doesn't work ?
 

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