1 / 7

Kelly Leffel 2/5/09

Kelly Leffel 2/5/09. Structures and Thermal Lunar Descent Phase. 1. Mass – Volume. Lander total wet mass = 275 kg Current available volume = 2.74 cubic meters Current volume of equipment = .26 cubic meters. Lander Model and Moments of Inertia. Ixx = Iyy = 271 kg-m^2 Izz = 464 kg-m^2.

truong
Télécharger la présentation

Kelly Leffel 2/5/09

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. Kelly Leffel2/5/09 Structures and Thermal Lunar Descent Phase 1 Kelly Leffel Structures and Thermal

  2. Mass – Volume • Lander total wet mass = 275 kg • Current available volume = 2.74 cubic meters • Current volume of equipment = .26 cubic meters Kelly Leffel Structures and Thermal

  3. Lander Model and Moments of Inertia Kelly Leffel Structures and Thermal Ixx=Iyy = 271 kg-m^2 Izz = 464 kg-m^2

  4. BACK-UP SLIDES Kelly Leffel Structures and Thermal

  5. Mass – Volume Continued 5 Kelly Leffel Structures and Thermal

  6. Volume Equations Kelly Leffel Structures and Thermal Surface Area(SA) = pi*R*S + pi*R^2 – pi*r*s Volume(V) = 1/3 * pi * R^2 * H – 1/3 *pi*r^2 Available Volume = V – SA*thickness of aluminum

  7. Moments of Inertia Ixx = Iyy = m/4 * (1.5 *r ^2 + h^2) = 271 kg – m^2 Izz = 3 *m*r^2/4 = 464 kg – m^2 Ixy = Iyz = 3*m*r^2/8 = -232 kg – m^2 Ixz=Izx=Iyz=Izy = -90 kg-m^2 7 Kelly Leffel Structures and Thermal

More Related