WFIRST Telescope Study Preliminary Analysis Renaud Goullioud, Gary Kuan, Jim Moore, Eric Sunada, Juan Villalvazo, Zensheu Chang JPL in collaboration with.

Slides:

Advertisements

Similar presentations

EIS/Solar-B: EIS information that was sent to System Side EIS subsystems: EIS consists of three EIS subsystems. (a) STR: Structure, (b) HAR: Harness, (c)

Advertisements

This document is not export controlled. Use or disclosure of this information is subject to the restrictions on the Title Page of this document 2.4m Space.

1 Ritva Keski-Kuha JWST Deputy OTE Manager May 19, 2009 JWST OTE Development Status JWST-PRES

Status of the James Webb Space Telescope (JWST) Optical Telescope Element (OTE) Northrop Grumman: Charlie Atkinson, Scott C. Texter NASA/GSFC: Lee Feinberg,

Topsfield Engineering Service, Inc. Figure 1 Thermoelastic Analysis in Design William Bell & Paul-W. Young Topsfield Engineering Service, Inc. John Stewart,

Rodger Farley p1 Super Nova/Acceleration Probe 16 November 2001 Mechanical Mechanical Overview Rodger Farley Mick Correia Judy Brannen 16 November 2001.

PACS IIDR 01/02 Mar 2001 Baffle and Straylight1 D. Kampf KAYSER-THREDE.

Use of a commercial laser tracker for optical alignment James H. Burge, Peng Su, Chunyu Zhao, Tom Zobrist College of Optical Sciences Steward Observatory.

GLAST LAT ProjectDOE/NASA Review of the GLAST/LAT Project, Feb , 2001 Martin Nordby1 Mechanical Systems Martin Nordby Stanford Linear Accelerator.

Page 1HMI Team Meeting – January 26, 2005 HMI Mission Operations Rock Bush HMI Stanford Program Manager Stanford University

SDW2005, juin, Taormina The Corot Space instrument.

Thermal Modeling and Model Correlation of the LORRI Telescope

Vibrations And their effect on electro-optical imaging spacecraft Steve Hearon Applied Math Seminar December 14, 2009 (to fullfill requirements of an optomechanics.

Space Frame Structures for SNAP Bruce C. Bigelow University of Michigan Department of Physics 11/04/04.

Mark Clampin Observatory Project Scientist Goddard Space Flight Center 217 th American Astronomical Society Meeting JWST Telescope Optics: Progress Report.

Final Version Wes Ousley Dan Nguyen May 13-17, 2002 Micro-Arcsecond Imaging Mission, Pathfinder (MAXIM-PF) Thermal.

1 Mirror subsystem: telescope structure Functions: Functions: Support mirrors subsystem to S/C Support mirrors subsystem to S/C Accommodate cryostat Accommodate.

STEREO IMPACT SEP Critical Design Review 2002-Nov-20 TvR IMPACT/SEP Thermal Design John Hawk, GSFC (301)

SAM PDR1 SAM LGS Mechanical Design A. Montane, A. Tokovinin, H. Ochoa SAM LGS Preliminary Design Review September 2007, La Serena.

G O D D A R D S P A C E F L I G H T C E N T E R 1 GW Interferometry at Goddard Space Flight Center Jordan Camp NASA / Goddard Space Flight Center Jan.

Inst. Overview Alice Preliminary Design Review JRS / 1 Instrument Overview and System Engineering John Scherrer (210) July.

MCAO Adaptive Optics Module Mechanical Design Eric James.

Determinate Space Frame Telescope Structures for SNAP Bruce C. Bigelow University of Michigan Department of Physics 7/28/04.

System issues System decomposition / Product tree System specification: function, performance, interfaces, budget Work-breakdown structure.

THEMIS Instrument CDR 1 UCB, April , 2004 EFI Axial Booms Thermal Christopher Smith Thermal Engineer

SNAP Integration Model V. S14 The SNAP Integration Model Mechanical [ SC4 Breakout ] Robin Lafever LBNL Engineering.

DRM1 design description SDT 5/17/12 1. WFIRST DRM candidate design summary At SDT6 2/2-3/2012 consensus for full-up mission, aka “DRM1” was: 1.3m aperture,

AAE450 Spring 2009 Support structure for Orbital Transfer Vehicle (OTV) Tim Rebold STRC [Tim Rebold] [STRC] [1]

Spacecraft Interface/Handling Ring Robert Besuner 12 August 2004.

Opto-Mechanics for SNAP at UM

After considerable pushing and shoving, this configuration show some promise. I have taken some liberties with the geometry and turned mounts inside-out.

MAXIM Periscope ISAL Study Highlights ISAL Study beginning 14 April 2003.

Henry Heetderks Space Sciences Laboratory, UCB

Delta II 7925H - 10L Baseline workup Launch Vehicle TheirsOurs Delta II 7925H Launch Vehicle 10L Composite Fairing 10L Stretch Composite Payload Fairing.

1 About this model This model employs 3 inverted ‘bipods’ for baffle. Bipods in quotes because legs are not pinned at ends, but are fixed-fixed. No skins.

GIST 24 Meeting GERB Hardware Status 14 th December 2005 Eric Sawyer.

N A S A G O D D A R D S P A C E F L I G H T C E N T E R I n t e g r a t e d D e s i g n C a p a b i l i t y / I n s t r u m e n t S y n t h e s i s & A.

ATLAST-9.2: A Deployable Large Aperture UVOIR Space Telescope W. Oegerle 1, L. Feinberg 1, L. Purves 1, T. Hyde 1, H. Thronson 1, J. Townsend 1, M. Postman.

WFIRST DRM2 candidate design – payload summary At SDT7 3/1-2/2012 consensus for concepts w/out overlap w/ other mission, aka “DRM2” was: 1.1m aperture,

Lower Baffle Robert Besuner 26 August Background/Purpose This study follows on to 12 August study of the Spacecraft Interface/Handling Ring. —In.

Mechanical design meeting, IAG, Calibration Unit mechanical design Svend M. Bauer Andreas Kelz, Emil Popow, Martin M. Roth.

Jeff Bolognese p1 Super Nova/Acceleration Probe 16 November 2001 Structural Analysis Jeff Bolognese 16 November 2001.

NIRSpec IFU Eric Prieto Final Presentation Definition Phase May, 11th – ESTEC.

Contamination Analysis of Optical Telescope Assembly (OTA) April Electronic, Mechanical Components and Materials Engineering Group, Institute of.

SuperNova / Acceleration Probe Thermal System Wes Ousley November 16, 2001.

Walter Sondheim 6/9/20081 DOE – Review of VTX upgrade detector for PHENIX Mechanics: Walter Sondheim - LANL.

Another Modular Focal Plane: Part 1 – Sub-modules Bruce C. Bigelow University of Michigan Department of Physics 5/17/04.

Wes Ousley June 28, 2001 SuperNova/ Acceleration Probe (SNAP) Thermal.

Solar Orbiter EUS: Thermal Design Progress Bryan Shaughnessy, Rutherford Appleton Laboratory 1 Solar Orbiter EUV Spectrometer Thermal Design Progress Bryan.

Increased Thermal Background for the post-NCS NICMOS TIPS – June 19, 2003 Megan Sosey NICMOS.

JWST ISIM Primary Structure and Kinematic Mount Configuration Jonathan Kuhn, Tim Carnahan NASA/GSFC Code 542 Andrew Bartoszyk, Steve Hendricks, Charles.

RBSP Radiation Belt Storm Probes RBSP Radiation Belt Storm Probes RBSP/EFW CDR /30-10/1 Thermal Design Christopher Smith RBSP Thermal Engineer Space.

Date of download: 5/29/2016 Copyright © 2016 SPIE. All rights reserved. Drawing of the Space Infrared Telescope for Cosmology and Astrophysics (SPICA)

Modal Testing 421L/521L (Lab 9) 10/21/2016. Frequency Response Frequency Response Function – System characteristics in frequency domain How to find FRF.

Rose Navarro HMI Lead Thermal Engineer

Blanco F/8 Status AURA Observatory Council, Tucson, 3/2013.

University of California - Berkeley

PS3D culture Polycarbonate filter, 0.2µm

GLAST Large Area Telescope:

Mini-RF Requirements Overview

University of California, Berkeley

PFIS Camera & Collimator Conceptual Design

Precision Oven Thermal Design

Henry Heetderks Space Sciences Laboratory, UCB

Launch and On-orbit Checkout

GIFTS Blackbody Subsystem Critical Design Review Blackbody Requirements Flowdown Fred Best 9 March 2004.

CRATER MODEL ASSUMPTIONS

Another Modular Focal Plane: Part 2 – FP assembly

THERMAL CONTROL SYSTEM

CHEOPS - CHaracterizing ExOPlanet Satellite

Presentation transcript:

WFIRST Telescope Study Preliminary Analysis Renaud Goullioud, Gary Kuan, Jim Moore, Eric Sunada, Juan Villalvazo, Zensheu Chang JPL in collaboration with the Goddard team 11/18/20151SDT#7 Telescope

Telescope Modeling Status Completed detailed CAD model. Completed Thermal model. Completed Finite element model. Competed Optical Tolerancing model. Modeled Ground Alignment of Telescope: – Requires 5 DoF on SM and tip/tilt of ImC Fold mirror – Requires tip/tilt of SpC F2 and tip/tilt/piston of SpC TM Modeled Ground to On-orbit Gravity shift: – Gravity shift can be taken out by the SM mechanism 5 DoF. 11/18/2015SDT#7 Telescope2

Telescope CAD model 11/18/2015SDT#7 Telescope3 Primary Mirror Imager Tertiary Mirror Secondary Mirror Imager Feed Mirror Imager Fold Mirror

Telescope Mass Breakdown 11/18/2015SDT#7 Telescope4 OTA Mass Breakdown by material: kg M55J (composite structures, tubes)375.3 Titanium (mirror mounts)21.8 Stops and cans (Aluminum)2.8 OTA mount53.6 ULE (mirrors)127.4 Mechanical (mechanisms)18.8 MLI (thermal blankets)19.8 kapton (heaters)13.9 PRTs (thermal sensors)0.7 Telescope electronics (chassis+boards)16.4 Cabling39.0 Instruments154.3 Radiators34.3 Contingency282.3 TOTAL (including 21.3kg electronics)1160.2

Telescope Finite Element Model Node count: 103,219 Element count: 209,748 Mass: 1,139.0 kg Element type: CBAR: 305 CHEXA: 16,776 CONM2: 14 CPENTA: 6,798 CQUAD4: 91,648 CTETRA: 81,790 CTRIA3: 12,115 CTRIA6: 202 RBAR: 8 RBE2: 69 RBE3: 23 Boundary conditions: Ends of the 3 bipods fixed 11/18/2015SDT#7 Telescope5

Mode Hz, Telescope moves from side to side Mode Hz, Telescope moves from front to back Telescope First Mode 11/18/2015SDT#7 Telescope6

WFIRST Thermal Model TD/RC Nodes 23 User Nodes 8 boundary (SC at 313.2K) 3538 MLI (non graphical) Surfaces 8675 planar elements 413 surfaces 50 heaters 11/18/2015SDT#7 Telescope

Temperature Plot (at Nominal orientation) 811/18/2015SDT#7 Telescope

Thermal Model - Cutout view 911/18/2015SDT#7 Telescope

Primary, Secondary and Fold Mirrors (Nominal) 10 Primary mirror Secondary mirror IMC Feed IMC Tertiary IMC Fold 11/18/2015SDT#7 Telescope

Spacecraft Orientation (View From the Sun) Nominal Roll 10 deg, Pitch 36 deg 11/18/2015SDT#7 Telescope11

Thermal Results Summary 12 Component NominalRoll 10, Pitch 36 Max. T, °KMin. T, °KAvg. T, °K Heater Power at 220K, W Max. T, °KMin. T, °KAvg. T, °K Heater Power at 220K, W Baffle Primary mirror Rear Encl Secondary mirror Tertiary Tertiary Fold mirror Fold mirror Strongback Rooftop mirror Rooftop mirror Rooftop mirror Rooftop mirror Feed Structure Imager mirror Imager tertiary Imager fold mirror Total205.4Total /18/2015SDT#7 Telescope

Temperature Change vs. Orientation Delta_T ( T_nominal – T_ Roll 10 pitch 36) 13 Primary mirror Front Back Secondary mirror 11/18/2015SDT#7 Telescope

Temperature Change vs. Orientation Delta_T ( T_nominal – T_ Roll 10 pitch 36) 11/18/2015SDT#7 Telescope14 Tertiary Front Back Imager Fold

Next Steps Apply temperatures to the Finite Element Model. Calculate wavefront error stability using optical modal. Reduce temperature to 200K. Calculate wavefront error stability. Turn off thermal control ( K). Calculate wavefront error stability. 11/18/2015SDT#7 Telescope15

Heaters off: Telescope Temperature Secondary mirror Primary mirror Imager Fold mirror 11/18/2015SDT#7 Telescope16