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REXUS User Manual

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REXUS User Manual This document remains our property and should not be copied without our written allowance. Nor is it permitted to show or give this document to a third person. Contravention will be prosecuted with the support of existing law. REXUS User Manual Document ID: RX_UserManual_v7-15_07Nov17 Version: Issue Date: Document Type: Valid from: 7.15 07. Nov 2017 Spec 17. Nov 2017 Current version issued by: Katharina Schüttauf Contributors: Please see Change Record for a list of contributors Current version approved by: Alexander Schmidt Distribution: Change Record Version Date Changed chapters Remarks Draft 2007-02-07 Text TBD is in italic and underwritten 4 2007-11-29 H. Hellmann, A. Stamminger 4.3 2007-11-30 O. Persson, A. Stamminger 4.4 2007-12-05 O. Persson 4.5 2007-12-05 O. Persson 4.6 2008-06-10 5.0 2008-09-24 All M. Inga 6.0 2008-10-01 All M. Inga 6.1 2008-12-11 All O. Persson 6.2 2009-03-02 All H. Page 6.3 2009-04-07 All O. Persson 6.4 2009-11-11 1.2, 4.1.1, 7.x, M. Pinzer 7.0 2009-12-04 All M. Fittock 7.1 2010-08-30 3.5, 5.4, 6, 7.4, 7.6, 7.8, M. Fittock 11.5, 11.8, 12.7, 12.8, 12.9 7.2 2010-12-23 4.3.2, 9.3.1, 2, 5.1 M. Siegl 7.3 2011-08-31 7.6.4, EuroLaunch logo M. Siegl 7.4 2012-06-29 1.x minor edits, 7.x M. Pinzer, M. Fittock updates to electronics information 7.5 2012-06-29 Edits throughout A. Kinnaird document for clarity, 3.4.1 timetable updated, 4.3.2 graphs from flight replaced calculated trajectories 7.6 2012-08-30 5 updated and M. Fittock information added, 9.3 edited 7.7 2012-09-03 Minor edits: 1, 1.3, M. Inga 4.3.2, 5.5, 5.6, 5.8, 7.2, 11.1, 12.4.1, 12.8 7.8 2013-01-25 4.2, Figure 4-4 A. Schmidt 7.9 2013-09-03 Edits throughout N. Newie document for clarity, A, 5.3.2, 6.1.1, 7.1, 7.2, A. Kinnaird 7.3, 9.3, 10.3.2, 13.2 7.10 2013-12-17 .. A. Schmidt, M. Pinzer, A. Stamminger 7.11 2014-01-08 9.3 S.Mawn, U.Kaczmarczik 7.12 2014-11-03 9.3, 7.6.7 S.Mawn 4.3.1, 11 A.Kinnaird 4.3.2, 5.1 D.Bischoff 7.13 2014-12-14 7.9 A.Schmidt 7.14 2016-12-21 All A. Kinnaird S. Krämer O. Drescher M. Markgraf A. Schmidt K. Schüttauf 7.15 2017-11-07 4. F.Hassenpflug 7. K. Schüttauf P. Koudele M. Pinzer Abstract: This document has been created to aid experimenters taking part in a REXUS flight as part of the REXUS/BEXUS Programme. It is continually updated and developed in order to serve the experimenters and operators better. It describes important information about flights for experimenters, interface details, design guidelines, and testing. Keywords: rocket, education, interface, EuroLaunch, space, experiments This is not an ICD document. Table of Contents 1 INTRODUCTION ...................................................................................................... 10 1.1 Definitions ......................................................................................................... 12 1.2 Abbreviations .................................................................................................... 13 1.3 References ......................................................................................................... 16 1.4 Applicable documents ....................................................................................... 17 2 ALWAYS READ THIS ............................................................................................. 18 3 REXUS PROJECT OVERVIEW AND MILESTONES ........................................... 20 3.1 Project Organisation .......................................................................................... 20 3.2 Flight Ticket ...................................................................................................... 20 3.3 Experimenter’s Role ......................................................................................... 21 3.4 Project Planning ................................................................................................ 21 3.5 Experimenter Documentation Requirements .................................................... 22 3.5.1 Student Experiment Documentation (SED) ........................................ 22 3.5.2 Flight Requirements Plan ................................................................... 22 3.5.3 Flight Report Documentation ............................................................. 23 4 REXUS SYSTEM ...................................................................................................... 24 4.1 REXUS Vehicle ................................................................................................ 24 4.1.1 Service Module ................................................................................... 24 4.1.2 Rate Control ........................................................................................ 25 4.1.3 Recovery Module ................................................................................ 26 4.1.4 Homing Aid ........................................................................................ 26 4.1.5 Telecommand ..................................................................................... 26 4.1.6 TV-Channel ........................................................................................ 27 4.2 Body Frame Coordinate System ....................................................................... 27 4.3 Performance and Flight Sequence .................................................................... 28 4.3.1 Nominal trajectory .............................................................................. 28 4.3.2 Graphs of typical trajectory ................................................................ 30 5 MECHANICAL DESIGN OF EXPERIMENTS ....................................................... 35 5.1 Outer Structure .................................................................................................. 36 5.2 D-SUB Brackets ................................................................................................ 39 5.3 Hatches .............................................................................................................. 41 5.3.1 Late Access Hatches ........................................................................... 41 5.3.2 Inflight Actuated Hatches ................................................................... 41 5.4 Exhaust Openings ............................................................................................. 42 5.5 Venting Holes ................................................................................................... 42 5.6 Ejectables and Free Falling Units ..................................................................... 42 5.7 External Skin Mounts ....................................................................................... 43 5.8 Use of Fluids within Modules ........................................................................... 43 5.9 Dimensioning Loads during Launch, Flight and Recovery .............................. 43 5.9.1 Acceleration ........................................................................................ 43 5.9.2 Re-Entry Loads ................................................................................... 43 5.9.3 Landing Velocity ................................................................................ 43 5.10 Mechanical Retroaction Forces from Experiments on the Payload .................. 43 5.10.1 Vehicle Characteristics ....................................................................... 44 5.10.2 Movements ......................................................................................... 44 5.10.3 Vibrations ........................................................................................... 44 5.11 Mass Balance and Mass Properties ................................................................... 44 6 THERMAL DESIGN OF EXPERIMENTS .............................................................. 45 6.1 The REXUS Thermal Environment .................................................................. 45 6.1.1 Pre-Launch Phase ............................................................................... 45 6.1.2 Countdown Phase ............................................................................... 45 6.1.3 Flight Phase ........................................................................................ 45 6.1.4 Post-Flight Phase ................................................................................ 45 6.1.5 REXUS Thermal Requirements ......................................................... 46 6.1.6 Heating of the Outer Structure ............................................................ 46 6.1.7 Temperature at the Feed-Through Cable ............................................ 46 6.1.8 Heat Radiation in the Module Interfaces ............................................ 46 6.1.9 Convection between Connecting Modules ......................................... 46 7 ELECTRICAL DESIGN OF EXPERIMENTS ......................................................... 47 7.1 System Overview .............................................................................................. 47 7.2 Radio Frequency Constraints ............................................................................ 47 7.3 Durability .......................................................................................................... 48 7.4 Telemetry System ............................................................................................. 48 7.5 Telecommand System ....................................................................................... 48 7.6 Beacon ..............................................................................................................
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