html5-img
1 / 8

Slawomir Boruch Week 3: February 1 st , 2007

Slawomir Boruch Week 3: February 1 st , 2007. Dynamics & Control EP Trajectory Design, aM, aE, EPS1, EPS2, Sample Return vehicle groups. Future Work. Work needs to be checked via numerical integration Should consider 3-D case (inclinations) Unknown masses major source of error.

ken
Download Presentation

Slawomir Boruch Week 3: February 1 st , 2007

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Slawomir BoruchWeek 3: February 1st, 2007 Dynamics & Control EP Trajectory Design, aM, aE, EPS1, EPS2, Sample Return vehicle groups

  2. Future Work • Work needs to be checked via numerical integration • Should consider 3-D case (inclinations) • Unknown masses major source of error

  3. Backup Slides

  4. a a’ a does not equal a’!! Sample Calculation LEO - HMO • Since semi-major axis of transfer changes with • synodic period, had to figure out Vinf for all possible • trajectories. • 2) Vinf is the heliocentric velocity of s/c on transfer • in heliocentric reference frame minus the helocentric • velocity of the planet. • 3) Delta V escape can be calculated using:

  5. Sample Calculation LEO - HMO 4) Find “Upper Stage” delta V from LEO TO HEO 5) Calculate total delta V: ΔV = ΔVesc_earth + ΔVcap_mars + ΔVus 6) Use the following to find Isp that minimizes Mo/Mpayload

  6. Sample Calculation LEO - HMO 7) Find Thrust:

  7. Payload Mass Breakdown

More Related