Critical Design Review 2012-2013 NASA USLI “Research is what I’m doing when I don’t know what I’m doing.” - Werner Von Braun [Type text] I) Summary of CDR Report [Type text] Tarleton State University i Critical Design Review Note to reader: To facilitate the reading of the Critical Design Review, we have mirrored the Student Launch Project Statement of Work. In the body of the CDR, you will find extensive detail in the design of our SMD payload. The payload’s features are threefold; atmospheric data gathering sensors, a self-leveling camera system, and a video camera. One of the two major strengths of our payload design is the originality of our autonomous real-time camera orientation system (ARTCOS). The other major strength can be found in the originality of our self-designed Printed Circuit Board layouts. This feature alone represents over 150 man hours of work. Along with space and power efficiencies, the PCBs provide major enhancement of the signal integrity of the sensor data. For ease of reading, you will find documents such as itemized final build budget and launch procedures moved to the appendix along with Sensor and Material Safety Data sheets. We have enjoyed the challenges presented in the writing of this document and submit it for your review. Tarleton State University ii Critical Design Review Table of Contents I) Summary of CDR Report ............................................................................................. 1 Team Summary ........................................................................................................... 1 Launch Vehicle Summary ............................................................................................ 1 Payload Summary ........................................................................................................ 1 II) Changes Made since PDR .......................................................................................... 2 III) Vehicle Criteria ........................................................................................................... 5 Design and Verification of Launch Vehicle ................................................................... 5 Launch Vehicle Mission Statement ........................................................................... 5 Mission Success Criteria .......................................................................................... 5 Review the design at a system level ......................................................................... 9 Verification of System Level Functional Requirements ........................................... 19 Approach to Workmanship ..................................................................................... 23 Additional Planned Component, Functional, or Static Testing ................................ 24 Status and Plans of remaining manufacturing and assembly ................................. 24 Discuss the integrity of design ................................................................................ 24 Safety and Failure Analysis .................................................................................... 40 Subscale Flight Results ............................................................................................. 40 Subscale Flight Results ............................................................................................. 40 Flight Data .............................................................................................................. 41 Impact on Design Summary ................................................................................... 79 Recovery Subsystem ................................................................................................. 81 Physical Components ............................................................................................. 81 Electrical Components ............................................................................................ 86 Kinetic Energy......................................................................................................... 96 Test Results ............................................................................................................ 98 Safety and Failure Analysis .................................................................................. 102 Mission Performance Predictions ............................................................................. 116 Mission Performance Criterion.............................................................................. 116 Payload Integration .................................................................................................. 121 Payload Integration Plan ....................................................................................... 121 Payload Installation and Removal ......................................................................... 124 Payload Interface Dimensions .............................................................................. 126 Tarleton State University iii Critical Design Review Payload Element Compatibility ............................................................................. 128 Simplicity of Integration Procedure ....................................................................... 128 Launch Concerns and Operation Procedures .......................................................... 128 Launch procedures ............................................................................................... 128 Pre-launch Checklists and Procedures: ................................................................ 128 Safety Materials Checklist .................................................................................... 128 Structure Preparation: ........................................................................................... 129 Recovery Procedures: .......................................................................................... 130 Motor Preparation: ................................................................................................ 132 Launch Checklist and Procedures ........................................................................ 133 Troubleshooting: ................................................................................................... 134 In-Flight Inspection ............................................................................................... 135 Post-Flight Inspection ........................................................................................... 135 Travel .................................................................................................................... 135 Safety and Environment ........................................................................................... 137 Failure Modes ....................................................................................................... 137 Hazard Analysis .................................................................................................... 142 Environment.......................................................................................................... 146 IV) Payload Criteria ..................................................................................................... 149 Testing and Design of Payload Experiment ............................................................. 149 Design Review at a System Level ........................................................................ 149 System Level Functional Requirements ............................................................... 161 Approach to Workmanship ................................................................................... 163 Test Plan of Components and Functionality ......................................................... 163 Status and Plans of Remaining Manufacturing and Assembly ............................. 189 Integration Plan..................................................................................................... 192 Precision of Instrumentation and Repeatability of Measurements ........................ 194 Safety and Failure Analysis .................................................................................. 197 Uniqueness and Significance ............................................................................... 201 Suitable Level of Challenge .................................................................................. 201 Science Value .......................................................................................................... 202 Experimental Logic, Approach, and Method of Investigation ................................ 203 Relevance of Expected Data and Accuracy/Error Analysis .................................. 204 Safety and Environment ........................................................................................... 205 Tarleton State University iv Critical Design Review The Safety Officer ................................................................................................. 205 Failure Modes ....................................................................................................... 206 Hazard Analysis .................................................................................................... 209 Environment.......................................................................................................... 212 V) Project Plan ...........................................................................................................