Status of the Blanco Shutdown and Plan

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Transcripción de la presentación:

Status of the Blanco Shutdown and Plan Primary Mirror Seismic clip(4) Counterweight(24) Mirror Cell Definition Point Andres Montane 11/29/2018

Plan 1. The design of the new “H” reduces the concentration of stress on the corners of the pads. The maximum stress on the epoxy is reduced by a factor of three. Work done on the instrument shop (20) Andres Montane 11/29/2018

Plan 2. To optimize the adhesion of the Hs, we will bond all Hs on fresh glass. Rotation of the mirror is 7.5 degrees, midway between the current positions. Special tool for marking process Andres Montane 11/29/2018

Screw to apply pressure to the “H” Prototype exercise Special tool to align the H in his new place Adjustment screws Parts made for the process of bonding Screw to apply pressure to the “H” Andres Montane 11/29/2018

Epoxy is injected into the pad-to-glass interface using a gun. When all the Hs are in place the bonding process begins. Epoxy is injected into the pad-to-glass interface using a gun. Andres Montane 11/29/2018

The Hs bond in his new place Andres Montane 11/29/2018

Plan 3. To provide a larger gap between cell and counterweight, the counterweight is cut 10mm from the perimeter; the nominal space would thus be 36mm. The counterweight decrease of 300 grams must be added at the end to preserve the state of balance. Andres Montane 11/29/2018

Plan 4. Radial definition points for the mirror. Those hard points can hold a load cell to monitor the state of balance of the mirror. load cell Seismic clip(4) Mirror Cell location for hard point. 4 places Work in progress in the instrument shop Andres Montane 11/29/2018

4m Load Cell Electronics Work done on the instrument shop Andres Montane 11/29/2018

5. Changing all the bearings, 4 per counterweight. Plan 5. Changing all the bearings, 4 per counterweight. The preparation of the bearings in progress Andres Montane 11/29/2018

Plan 6. Clean and lubricate the pad base pivot or knuckle. change if necessary Work done on the instrument shop Andres Montane 11/29/2018

Trabajos pendientes: Probar el pegamento según sus especificaciones Primera limpieza de los pad (96) Preparación de los rodamientos Precarga de los puntos de definición (4) Ejercitar el procedimiento de alineación de las “H” Preparación de los materiales de limpieza Coordinación de transporte para los traslados de piezas Embalaje de las piezas “H” y piezas involucradas Coordinación del alojamiento del personal en Tololo Preparación de todas las herramientas Reunión con las personas del instrument shop para revisar procedimientos Preparación de dibujos y documentación, incluyendo procedimientos (como lo que esta escrito arriba) Revisar el Timeline Andres Montane 11/29/2018