Embed Size (px)
Citation preview
Micro Return Capsule 2 - REXUS
1st Symposium on Space Educational Activities
Sascha [email protected]
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Overview
10/12/2015 MIRKA2-RX 2
1. Introduction and Motivation
2. Experimental Set-up
3. Mission Scenario
4. Capsule MIRKA2-RX
5. Separation Mechanism LOTUS
6. Conclusion
7. Outlook
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
10/12/2015 MIRKA2-RX 3
3 Unit Service & De-orbit Module
1 Unit Separation Mechanism & Re-Entry Capsule
Introduction and Motivation
• Precursor project of CAPE (CubeSat Atmospheric Probe for Education)
• CAPE serves as a demonstration and qualification platform for electric
propulsion and atmospheric re-entry technology
• Characterization of Earth‘s lower thermosphere
• Development of general system engineering as well as specialized
expert skills of students
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
10/12/2015 MIRKA2-RX 4
Introduction and Motivation
Experiment to validate:
• Flight behavior, communication
and electronic system of the
MIRKA2 capsule
• Performance of the specially
developed ejection-mechanism
LOTUS
(Low Orbit Technical Unit
Separator)
• Launch March 2016 on
REXUS-19
(ESA 2007)
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Experimental Set-up
10/12/2015 MIRKA2-RX 5
Hatch
Separation MechanismLOTUS
2x Action Camera withLEDs
MountingStructure
Mirror Box(contains the OCU & Mirror System)
Capsule MIRKA2-RX
Experimental Module
Base Plate
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
10/12/2015 MIRKA2-RX 6
T = 0 s: Launch
T ≈ 120 s: Ejection
MIRKA2-RX Mirror System
T ≈ 800 s
MIRKA2-RX Capsule
T ≈ 26 s: burn-out
T < 800 s
• Ejection at apogee• Data collection starts (Capsule/Mirror System)
• Cameras operational, recording starts
Mission Scenario
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Capsule MIRKA2-RX
10/12/2015 MIRKA2-RX 7
100 mm
79 mm
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Capsule MIRKA2-RX
10/12/2015 MIRKA2-RX 8
Aft Shell (WHIPOX)
Battery Case
Deactivation Mechanism
Outer Front Cone(Heat Shield Dummy)
Tungsten Weight
Aluminum Tip
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Capsule MIRKA2-RX
10/12/2015 MIRKA2-RX 9
Aluminium Ring
3x Batteries
2x PCB
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Capsule MIRKA2-RX
10/12/2015 MIRKA2-RX 10
2x Pressure Sensor(Static Pressure)
6x Thermocouples
Pressure Sensor(Stagnation pressure)
IMU
GPS + Antenna
Thermopile
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Capsule MIRKA2-RX
10/12/2015 MIRKA2-RX 11
Antenna (Iridium)
Transmitter (Iridium)
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
LOTUSLow Orbit Technical Unit Separator
10/12/2015 MIRKA2-RX 12
Wire
PTFE
Torsion Spring
Compression Springs
Rail
Baseplate
Pyro Cutter
Capsule
Clamp
Carriage
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Separation Test
10/12/2015 MIRKA2-RX 13
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Conclusion
10/12/2015 MIRKA2-RX 14
• Development of the following subsystems of CAPE:
Capsule MIRKA2: electronics, communication, software, structure
Separation Mechanism LOTUS
• Measurement of the flight stability and the stagnation pressure to improve
simulations
• Opportunities for students
Application of knowledge
Improvment of project
managemnt skills
Better understanding
of space systems Team (2014)
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Outlook
10/12/2015 MIRKA2-RX 15
• Analyzation of the experimental data
• Improvement of the performance of the capsule and the Separation
Mechanism and further experiments to rise the TRL
• Designing, building and testing of the Service and De-Orbit Module
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Thank you for your attention!
KSat StuttgartMissions Videos
@KSat_StuttgartNews and Updates
KSat.StuttgartNewsfeed
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
References
10/12/2015 MIRKA2-RX 17
[1] M. Ehresmann, A. Behnke, J.-P. Baumann, J. Franz, D. Galla, B. Gäßler, F. Grabi, F. Hießl, M. Koller, G. Kuhn, N. Müller, R. Müller, A. Papanikoloau, J. Rieser, V. Schöneich, H. Seiler, M. Siedorf, V. Starlinger, A. Stier, A. Tabelander, F. Vardar, S. Wizemann, A. S. Pagan, G. Herdrich, and R. Laufer: CubSat-sized Re-entry Capsule MIRKA2. 10th IAA Symposium on Small Satellites for Earth Observation, Berlin, 2015[2] A.S. Pagan, G. Herdrich, R. Laufer, and the KSat Team: CubeSat Atmospheric Probe for Education (CAPE). 10th IAA Symposium on Small Satellites for Earth Observation, Berlin, 2015.[3] G. Herdrich, R. Laufer, A. S. Pagan, et al: Planetary Probe Design Workshop: Collaborative Hands-On Small Satellite Training for Engineering Students, 10th IAA Symposium on Small Satellites for Earth Observation, Berlin, 2015[4] V. Schöneich, F.Grabi, H.Seiler, J.-P. Baumann, A. Behnke, M. Ehresmann, J. Franz, D. Galla, M. Koller, J. Rieser, M. Siedorf, R. Tietz, A.S. Pagan, G Herdrich, and R. Laufer: A Service and Deorbit Module for CubeSat Applications. 10th IAA Symposium on Small Satellites for Earth Observation, Berlin, 2015[5] A. Sidor, R. Braun, and D. DePasquale: RED-Data2 Commercial Reentry Recorder: Size Reduction and Improved Electronics Design. AIAA Atmospheric Flight Mechanics Conference, 2014 [Online]http://www.ssdl.gatech.edu/papers/conferencePapers/AIAA-2014-1231.pdf (accessed November 2015)[6] J.-P. Baumann, A. Pagan, and G. Herdrich: Aerothermodynamik re-entry analaysis of the cubesat-sized entry vehicle MIRKA2[7] J. Göhring, S. Hackemann, and B. Kanka: Whipox®: Ein faserverstärkter oxidkeramischer Werkstoff fürHochtemperatur- Langzeitanwendungen. Mat.-wiss. U. Werkstofftech. (2007), 38: 766-772.doi: 10.1002/mawe.200700191[8] LOCOSYS Technology Inc.: GPS_LS20031_datasheet_v1.3. Available online at:http://www.locosystech.com/product.php?zln=en&id=20# (accessed November 2015)[10] Quake Global, Inc.: Quake Q9602 datasheet. Available online at:http://www.m2mconnectivity.com.au/sites/default/files/brochures/9602_Marketing_Datasheet.pdf (accessed November 2015)
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
References
10/12/2015 MIRKA2-RX 18
[11] Arduino, LCC: Arduino Nano Data Sheet. Available online at:https://www.arduino.cc/en/uploads/Main/ArduinoNanoManual23.pdf (accessed November 2015)[12] Arduino, LCC: Arduino Mega Documentation. Available online at:https://www.arduino.cc/en/Main/ArduinoBoardMega2560#documentation (accessed November 2015)[13] S. Lee: The CubSat Program: CubeSat Design Specification. California Polytechnic State University, San Luis Obispo, CA 93407, USA. Technical note - Revision 13 (2014)
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
APPENDIX
12/10/2015 MIRKA2-RX Experiment 19
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
CAPE Mission Scenario
12/10/2015 MIRKA2-RX Experiment 20
Deployment1
2 De-orbit
3 Separation
4Re-entry of the capsule
5Transfer of re-entry data via satellite
6Demise of SDM,impact of capsule
• De-orbit down to separation altitude
• Atmospheric measurements
• PPT demonstration
at approx. 150 km altitude
Transmission of data through Iridium communication system
Measurement of the ambient conditions and the re-entry performance of the capsule
e.g. from ISS
Potential for monitoring of break-up and demise
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Electronic Design
12/10/2015 MIRKA2-RX Experiment 21
Mirror System Elecronics
In-situ sensors
Battery
Switch
LDO Power
Converter
OBC
attitude sensors
Communication
Emulator
Data
StorageDummy GPS
Thermopile
Dummy
Thermo-
couples
Pressure
Sensors
Temperature
Sensors
IMU
OCU/Separation Mechanism
Recording
equipment
OCU
REXUS Interface
Data
Storage
Wire Cutter
Triggers
Camera 1
Camera 2
LEDs
Uplink/
Downlink
Capsule System Elecronics
In-situ sensors
Battery
Switch
LDO Power
Converter
OBC
attitude sensors
Communication
Satellite
Transceiver
Data
StorageGPS
Thermopile
Thermo-
couples
Pressure
Sensors
Temperature
Sensors
IMU
Wire Cutters
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
On-Board Computer
12/10/2015 MIRKA2-RX Experiment 22
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
On-Board Control Unit
12/10/2015 MIRKA2-RX Experiment 23
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Qualification Tests
12/10/2015 MIRKA2-RX Experiment 24
• Mock-Up capsule with adjustable center of mass to analyze the flight stability of the different configurations
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Qualification Tests
12/10/2015 MIRKA2-RX Experiment 25
• Drop test from a crane with a height of 20m
• Vertical Wind tunnel test
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Qualification Tests
12/10/2015 MIRKA2-RX Experiment 26
• Iridium test board
Schematics Board layout
Production Testing
Small Satellite Student Group University of Stuttgartwww.ksat-stuttgart.de
Small Satellite Student Group University of Stuttgart
nonprofit student association for education and development within space engineering
Founded: 08.04.2014Members: 25+
Objectives:Participation in space projects,collect practical experience,interface industry & research
27
Team (2014)
MIRKA2-RX Experiment12/10/2015
