Research Activities on Small Satellite in HIT

Transcription

1 7th UK-China Workshop on Space Science and Technology Research Activities on Small Satellite in HIT Prof. ZHANG Shijie (RCST)

2 Contents 7th UK-China Workshop on Space Science and Technology 1. RCST Overview 2. Research Activities and Process 3. Future Prospects 4. International Cooperations

3 Part 1 7th UK-China Workshop on Space Science and Technology 1. RCST Overview

4 1. Overview, Harbin China (HIT) was founded in After 90 years, HIT has developed into a large nationally renowned multi-disciplinary university. In 2004, HIT became the first university to fully construct, develop and launch micro-satellite in China. In 2008, HIT launched its second micro-satellite, which is still working now.

5 1. Overview, HIT (RCST) was founded in It occupies an area of about 6200m 2, and has a staff of 23, and about 60 postgraduates. In 2004 and 2008, it launched its two micro-satellites.

6 1. Overview, HIT Research goals including, but not limited to Research on satellite dynamics, guidance and control Perform experimental validation of small satellite Find novel concepts and applications of small satellite Promote miniature technologies of small satellite Demonstration key technologies of small satellite

7 1. Overview, HIT state-of-the-art facilities for satellite technology research air-bearing platform for GNC simulation

8 1. Overview, HIT Facilities for satellite development Vibration test table Clean workshop Thermal vacuum chamber Ground station

9 Part 2 7th UK-China Workshop on Space Science and Technology 2. Research Activities

10 7th UK-China Workshop on Space Science and Technology 2. Research Activities (1) Dynamics, Guidance and control (2) Technology of Satellite Miniature (3) Experimental Validation (4) Micro-Satellite Missions

11 (1) Dynamics, Guidance and Control Dynamics and control of large complex satellite With the appendage subsystem Solid-liquid coupled system High-precise control of agile small satellite High-precise stability control Large angle slew control of agile satellite Spacecraft dormation dynamics and control relative dynamics and navigation Large-scale spacecraft formation control

12 (2) Technology of Satellite Miniature Miniature on-board electronic using SoC/MEMS Integrate functions of on-board avionics Integrate on-board electronic using SoC/MEMS Demonstrated on the second satellite

13 (2) Technology of Satellite Miniature Multi-functional Structure for integrated electronic Integrated on-board electronic equipment is sensitive to radiation, the better radioprotection is demanded. High-density integration also cause the heat-flow density increase, which requires the lightweight, lowpower and efficient thermal control. So, a new concept of multifunctional structure was proposed for on-board electronic equipment panel.

14 (3) Technology of Satellite Miniature Concept of Multi-Functional Structure Emittance-variable smart thermal control coating; Radioprotection coating; Perovskite manganites (La 0.8 Sr 0.2 MnO 3 ) mechanics & thermal conduction boron carbide (B 4 C) material

15 (3) Technology of Satellite Miniature Multi-Functional Structure Emittance rate: 0.42~0.87 Radioprotection capability is about 4 larger than Aluminum material The black side is smart thermal control coating, which can adjust its surface properties automatically according to its temperature. The white side is radioprotection coating.

16 (3) Spacecraft Simulation Platform for Spacecraft Attitude Control Single-axis air-bearing platform Large complex satellite with the appendage subsystem 3-axis air-bearing platform with Earth magnetic emulator

17 (3) Spacecraft Simulation Platform for Spacecraft Rendzvous and Docking 2 satellite simulators 5-axis motion simulation

18 (3) Spacecraft Simulation Simulation Platform for Spacecraft Formation Fling Platform is 6 meters 6 meters 3 satellite simulators 3-axis motion simulation

19 (4) Micro-satellite Missions Test Satellite 1 (TS-1) The primary goal of TS-1 micro-satellite is to demonstrate several new microsatellite technologies, Stereo imaging using stereo camera and small satellite onboard automated planning and scheduling attitude acquisition with magnetic torquers and reaction wheels attitude maneuver control with reaction wheels

20 (4) Micro-satellite Missions Test Satellite 1 (TS-1) Same as Dr. Wang mentioned yesterday, TS-1 payload is also a three-linear tridimensional mapping camera

21 (4) Micro-satellite Missions Test Satellite 1 (TS-1) Orbit: 600km sun-synchronous orbit weight: 204 kg The accuracy of attitude stability is about o /s, precision of attitude angular is about 0.05 o. resolution: 5m

22 (4) Micro-satellite Missions Test Satellite 1 (TS-1) TS-1 is a cuboid structure of mm dimensions, has four solar panels without SADAs. For meeting the power requirements, the satellite will remain the sun-pointing mode except for the imaging operation and data transmission period. 地球

23 (4) Micro-satellite Missions Test Satellite 1 (TS-1) de-tumbling control mode tri-axial stabilizing control mode attitude maneuver control mode safe mode High accuracy and high stability attitude control, attitude acquisition with magnetic torquer, and so on, were tested successfully in space.

24 (4) Micro-satellite Missions Test Satellite -1 (TS-1)

25 (4) Micro-satellite Missions Experiment Satellite -1

26 (4) Micro-satellite Missions Experiment Satellite -1 "Test Satellite I (TS-1)" was launched aboard a LM-2C rocket from the Xichang Satellite Launch Centre, on April 18 th 2004

27 (4) Micro-satellite Missions Experiment Satellite -1 Map of Tianjin city resolution:12m DEM of Tai mountain resolution:5m

28 4. Micro-satellite Missions Test Satellite - 3 Bus is same as TS-1 Weight: 248kg; 780km SSO

29 4. Micro-satellite Missions Test Satellite kg 780km SSO

30 4. Micro-satellite Missions Thermal vacuum test

31 4. Micro-satellite Missions EMC Test

32 Part 3 7th UK-China Workshop on Space Science and Technology 3. Future Prospects

33 3. Future Prospects Future research including, but not limited to design methodology for mass production of satellite (flexible platform of small satellite) modular, plug-and-play micro-satellite mini-satellite mission (such as Qb50) Technologies of distributed satellite system Concepts of fractionated satellite mission

34 Part 4 7th UK-China Workshop on Space Science and Technology 4. International Cooperation

35 4. International Cooperation The Royal Academy of Engineering sponsored visits between Dr Yang Gao and Dr Shijie Zhang aimed to start a new collaboration between the Surrey Space Centre (SSC) and Research Centre of Satellite Technology, (HIT), on micro-satellite formation research.

36 4. International Cooperation joint research on key technologies of small satellite novel concepts of small satellite and applications miniature equipment of small satellite small satellite missions cooperation in graduate education

37 Thanks for your attention! Prof. ZHANG Shijie mail: Tel: Fax: