lecture17 - ECE2984 Lecture17:SPACECRAFTSUBSYSTEMS...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE 2984 Lecture 17: SPACECRAFT SUBSYSTEMS Joseph Baker (ECE Dept) ECE 2984: Exploration of Space Lecture 17: Spacecraft Subsystems
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Last Lecture LAST LECTURE: Dan Sable: A career in spacecraft electronics NEXT TO LAST LECTURE: Launch: Staging e try cceleration eating Re Entry: Acceleration, Heating After the Shuttle? HIS CTURE THIS LECTURE: Payload and “Bus” Joseph Baker (ECE Dept) ECE 2984: Exploration of Space Lecture 17: Spacecraft Subsystems Overview of Spacecraft Subsystems Control Systems
Background image of page 2
Course Syllabus ECE Department Syllabus for ECE 2984 Topic Percent 1. History of Space Science and the Modern Space Program 10% 2. The near Earth Space Plasma Environment 15% 3. Geomagnetic Activity and Space Weather Hazards 15% 4. Orbital Mechanics 10% 5. Launch, Propulsion, Re Entry 10% 6. Spacecraft Subsystems 10% 7. Remote Sensing and Applications 10% 8. Satellite Communications and Navigation 10% g 9. Space Mission Design and Management 10% TAL: 00% Joseph Baker (ECE Dept) ECE 2984: Exploration of Space Lecture 17: Spacecraft Subsystems TOTAL: 100%
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The “Payload” and Spacecraft “Bus” Joseph Baker (ECE Dept) ECE 2984: Exploration of Space Lecture 17: Spacecraft Subsystems
Background image of page 4
Payload and Spacecraft Bus The “Payload” Does the mission xample ptical mera Example: optical camera e acecraft “ us” The Spacecraft Bus Performs housekeeping functions to support the payload Example: for a camera payload, the bus would provide a structure, electrical power, th ea bility t opoint the camera, data processing and transfer of the image data, thermal control to regulate the camera’s temperature Joseph Baker (ECE Dept) ECE 2984: Exploration of Space Lecture 17: Spacecraft Subsystems
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The Payload The “Payload” consists of the sensor(s) or instrument(s) that carry out the mission and meet the mission objectives. e ayload quirements The payload requirements usually have the most influence on the spacecraft’s esign nd nfiguration design and configuration. Joseph Baker (ECE Dept) ECE 2984: Exploration of Space Lecture 17: Spacecraft Subsystems
Background image of page 6
The Spacecraft “Bus” The spacecraft “Bus” is a collection of subsystems that support the payload with l e ecessary “ ousekeeping” ep ealthy, appy d fe all the necessary housekeeping to keep it healthy, happy and safe. The payload has its own mission requirements (e.g. accuracy) but it also establishes “spin off” requirements for the subsystems of the spacecraft bus: ointing irection f e acecraft d ayload titude ntrol) Pointing direction of the spacecraft and payload (i.e. attitude control) The amount of payload data to process and store (i.e. data handling) How much electrical voltage and current the payload needs (i.e. power) Acceptable range of payload operating temperatures (i.e. “life” support) Support structures for the payload (i.e. structures and mechanisms) Where the payload needs to be at a given time (i.e. propulsion)
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/19/2011 for the course ENGE 1114 taught by Professor Twknott during the Fall '06 term at Virginia Tech.

Page1 / 54

lecture17 - ECE2984 Lecture17:SPACECRAFTSUBSYSTEMS...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online