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Mirror Deformation Modeling for HANDS (High Accuracy Network Determination System) Jeremy Steel Mentors: Scott Gregory C

Mirror Deformation Modeling for HANDS (High Accuracy Network Determination System) Jeremy Steel Mentors: Scott Gregory Curt Leonard. What is HANDS?. An optical system which can Track objects in space Give highly accurate coordinates of objects orbiting the earth (Metrics)

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Mirror Deformation Modeling for HANDS (High Accuracy Network Determination System) Jeremy Steel Mentors: Scott Gregory C

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  1. Mirror Deformation Modeling for HANDS(High Accuracy Network Determination System)Jeremy SteelMentors: Scott GregoryCurt Leonard

  2. What is HANDS? • An optical system which can • Track objects in space • Give highly accurate coordinates of objects orbiting the earth (Metrics) • By using an optical sensor and radio transponder which receive different pieces of location data

  3. Why? • Exploitation of Space • Commercial • Military • National defense • Education • research • Prevent collisions • Very expensive

  4. Objectives • To set up a working optical system • Transfer telescope design from Autocad to Solidworks for weight analysis • Mounts • Perform gravitational sag analysis on mirrors using Cosmos • Light • Very structure and material properties, reanalyze sag and compare

  5. The System Dome and controls Mount controls Weather station Wind Rain Temperature Humidity Barometric pressure Sophisticated software

  6. The Telescope • Designed and Built at the tech park in Kihei

  7. AutoCAD 2D/3D Models • 2D 3D modeling

  8. SolidWorks • Transfer and assemble individual parts • Material Properties • Mass • Yield strength • Change materials and structures of parts • Mirrors

  9. Mirror Modeling • Solid and Heavy • Change the structure • Measure deformation

  10. 4 pocket Less flexible ~47.11 lbs 2 pocket More flexible ~40.11 lbs

  11. Model Deformations

  12. 3.433e^-11 mm 4 pocket 1.201e^-10 mm Red = most deformation Blue = least deformation

  13. 3.434e^-11 mm Material Comparison Pyrex Pyrex 3.517e^-11 mm ULE

  14. Summary • Transfer telescope design from Autocad to Solidworks for weight analysis • Perform sag analysis on mirrors using Cosmos • Very the structure and material properties, and reanalyze and comparer results • System is still a work in progress • Specify acceptable error • More mirrors • More telescopes • Always room for improvement

  15. Acknowledgments • Oceanit • Curt Leonard • Scott Gregory • Staff • CFAO • Akamai Internship Program • Malika Bell • Lisa Hunter • Liz Espinoza This project is supported by the National Science Foundation Science and Technology Center for Adaptive Optics, managed by the University of California at Santa Cruz under cooperative agreement No. AST - 9876783.

  16. QUESTIONS?

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