Dr. Konstantinos Vogiatzis Profile

Dr. Konstantinos Vogiatzis

Subject Matter Expert at Consultant

SPIE Involvement:

Author

Publications (62)

Proceedings Article | 11 September 2024 Poster + Paper

Local seeing analysis for the European Solar Telescope

M. Soler, K. Vogiatzis, J. Cózar-Castellano, S. Bonaque-González, M. Belio, M. Núñez, M. Barreto

Proceedings Volume 13094, 130945F (2024) https://doi.org/10.1117/12.3020069

KEYWORDS: Telescopes, Design, Optical path differences, Turbulence, Solar telescopes, Simulations, Air temperature, Thermal modeling, Wind speed, Optical transfer functions

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Proceedings Article | 11 September 2024 Presentation + Paper

Aerothermal support for TMT International Observatory enclosure and summit facilities subsystems

Konstantinos Vogiatzis, Hugh Thompson, Gelys Trancho

Proceedings Volume 13094, 130940Q (2024) https://doi.org/10.1117/12.3020282

KEYWORDS: Observatories, Thermal modeling, Computational fluid dynamics

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Proceedings Article | 28 August 2024 Presentation

Progress report on the TMT Adaptive Optics Facility

Corinne Boyer, Lianqi Wang, Melissa Trubey, Benjamin Irarrazaval, John Miles, Konstantinos Vogiatzis, Jean-Pierre Véran, Jenny Atwood

Proceedings Volume 13097, 130971Z (2024) https://doi.org/10.1117/12.3019281

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Proceedings Article | 27 August 2024 Poster + Paper

Thirty Meter Telescope Laser Guide Star Facility preliminary design completion

M. Trubey, C. Boyer, L. Wang, B. Irarrazaval, J. Miles, K. Vogiatzis, A. Ebbers, F. Santoro

Proceedings Volume 13097, 130975B (2024) https://doi.org/10.1117/12.3021051

KEYWORDS: Telescopes, Design, Mirrors, Adaptive optics, Collimators, Safety, Laser systems engineering, Laser guide stars, Wavefront sensors, Optomechanical design, Astronomical adaptive optics, Optical systems engineering, Thirty Meter Telescope, Large telescopes

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Proceedings Article | 27 August 2024 Presentation + Paper

Petalling mode sensing for the Thirty Meter Telescope

Lianqi Wang, Matthias Schoeck, Jean-Pierre Veran, Konstantinos Vogiatzis, Corinne Boyer

Proceedings Volume 13097, 130972F (2024) https://doi.org/10.1117/12.3019282

KEYWORDS: Wavefront sensors, Point spread functions, Turbulence, Adaptive optics, Simulations, Phase retrieval, Sensors, Reconstruction algorithms, Wavefront errors, Thirty Meter Telescope

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Proceedings Article | 23 August 2024 Poster + Paper

GMT primary mirror thermal control system and thermal deformation modeling framework

Konstantinos Vogiatzis, Henry Fitzpatrick, Rod Conan, Trupti Ranka, Gary Muller, Bo Xin, David Ashby

Proceedings Volume 13099, 130992M (2024) https://doi.org/10.1117/12.3020295

KEYWORDS: Thermal deformation, Mirrors, Thermal modeling, Computational fluid dynamics

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Proceedings Article | 23 August 2024 Poster + Paper

Aerothermal modeling of the TMT International Observatory Laser Guide Star Facility

Konstantinos Vogiatzis, Lianqi Wang, Melissa Trubey, Benjamin Irarrazaval, Corinne Boyer

Proceedings Volume 13099, 130992L (2024) https://doi.org/10.1117/12.3020264

KEYWORDS: Beam jitter, Observatories, Wavefront errors, Telescopes, Computational fluid dynamics, Thermal modeling

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Proceedings Article | 23 August 2024 Poster + Paper

The TMT International Observatory aerothermal performance estimation procedure

Konstantinos Vogiatzis, Doug MacMartin, Lianqi Wang, Gelys Trancho

Proceedings Volume 13099, 130992K (2024) https://doi.org/10.1117/12.3020241

KEYWORDS: Telescopes, Observatories, Thermal modeling, Computational fluid dynamics, Performance modeling, Image quality

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Proceedings Article | 23 August 2024 Poster + Paper

A computational framework for the study of the diurnal thermo-mechanical behavior of the Giant Magellan Telescope

Henry Fitzpatrick, Rod Conan, Konstantinos Vogiatzis, Kaushik Das, Christoph Dribusch

Proceedings Volume 13099, 130992I (2024) https://doi.org/10.1117/12.3020120

KEYWORDS: Telescopes, Device simulation, Thermal modeling, Thermal deformation, Structural analysis, 3D modeling, Temperature distribution, Modeling

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Proceedings Article | 23 August 2024 Presentation + Paper

An integrated modeling computing framework to assess the adaptive optics observing modes of the GMT

R. Romano, R. Conan, C. Dribusch, H. Fitzpatrick, K. Vogiatzis, M. Shabram, B. Walls, F. Quiros-Pacheco, R. Demers, M. Van Dam

Proceedings Volume 13099, 1309913 (2024) https://doi.org/10.1117/12.3019271

KEYWORDS: Integrated modeling, Systems modeling, Telescopes, Adaptive optics, Data modeling, Control systems, Sensors, Wavefronts, Device simulation, Universities

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Proceedings Article | 30 August 2022 Poster + Paper

TMT Laser Guide Star Facility preliminary design

M. Trubey, C. Boyer, B. Delabre, B. Irarrazaval, J. Miles, K. Vogiatzis, L. Wang, C. Jiang

Proceedings Volume 12185, 121857H (2022) https://doi.org/10.1117/12.2630542

KEYWORDS: Thirty Meter Telescope, Sodium guide stars, Beam expanders, Laser beam propagation, Mirrors, Telescopes, Adaptive optics, Electronics, Control systems, Beam splitters, Laser systems engineering, Laser safety, Laser guide stars

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Proceedings Article | 25 August 2022 Presentation + Paper

Aerothermal modeling for design support, requirement validation, and performance assessment of the GMT subsystems

Konstantinos Vogiatzis, Henry Fitzpatrick, Kaushik Das, Rod. Conan, George Angeli, Breann Sitarski, Rodrigo Romano, Cristoph Dribusch, Brian Walls

Proceedings Volume 12187, 121870K (2022) https://doi.org/10.1117/12.2630388

KEYWORDS: Thermal modeling, Observatories, Telescopes, Solid modeling, Stochastic processes, 3D modeling, Performance modeling

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Proceedings Article | 25 August 2022 Paper

Integrated modeling based performance mode compliance analysis for the Giant Magellan Telescope

R. Conan, B. Sitarski, G. Angeli, R. Romano, C. Dribusch, H. Fitzpatrick, K. Vogiatzis, K. Das, B. Walls

Proceedings Volume 12187, 1218715 (2022) https://doi.org/10.1117/12.2629735

KEYWORDS: Integrated modeling, Telescopes, Observatories, Systems modeling, Image quality, Thermal modeling, Turbulence, Performance modeling, Control systems, Computer simulations

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Proceedings Article | 25 August 2022 Presentation + Paper

TMT systems engineering evolution in the last decade

Gelys Trancho, George Angeli, Josh Church, Jamie Dodge, Bart Fordham, Sarah Gajadhar, Nancy Han, Kayla Hardie, Doug McMartin, John Miles, Scott Roberts, John Rogers, Fernando Santoro, Hugh Thompson, Konstantinos Vogiatzis

Proceedings Volume 12187, 121870L (2022) https://doi.org/10.1117/12.2631603

KEYWORDS: Systems engineering, Interfaces, Computer aided design, Observatories, Systems modeling, Standards development, Safety, Reliability, Databases, Control systems

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Proceedings Article | 25 August 2022 Presentation + Paper

On the relationship between thermal seeing and observatory design

Konstantinos Vogiatzis, Hugh Thompson, John Rogers, Gelys Trancho

Proceedings Volume 12187, 1218716 (2022) https://doi.org/10.1117/12.2630428

KEYWORDS: Observatories, Telescopes, Mirrors, Optical turbulence, Error analysis, Computer simulations, Turbulence, Spatial resolution, Refractive index, Point spread functions

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Proceedings Article | 13 December 2020 Paper

Aerothermal modeling for ground-based observatories: present and future

Konstantinos Vogiatzis, George Angeli, Gelys Trancho, Rod Conan, Hugh Thompson

Proceedings Volume 11450, 114500L (2020) https://doi.org/10.1117/12.2562459

KEYWORDS: Observatories, Computer aided design, Optimization (mathematics), Solid modeling, Visual process modeling, Computer simulations, Mirrors, Aerodynamics, Optical instrument design, Large telescopes

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Proceedings Article | 13 December 2020 Paper

GMTO approach to integrated modeling based system engineering

R. Conan, G. Angeli, B. Sitarski, C. Dribusch, H. Fitzpatrick, R. Romano, K. Vogiatzis, K. Das

Proceedings Volume 11450, 114500M (2020) https://doi.org/10.1117/12.2561940

KEYWORDS: Integrated modeling, Systems engineering, Systems modeling, Observatories, Performance modeling, Error analysis, Data modeling, Optical components, Integrated optics, Computational fluid dynamics

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Proceedings Article | 10 July 2018 Presentation + Paper

GMT aerothermal modeling validation through site measurements

Kaushik Das, Konstantinos Vogiatzis, George Angeli, Wylie Rosenthal, Antonin Bouchez, Robert Goodrich, Breann Sitarski

Proceedings Volume 10705, 1070502 (2018) https://doi.org/10.1117/12.2312794

KEYWORDS: Turbulence, Optical turbulence, Sensors, Observatories, Refractive index, Wind measurement

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Proceedings Article | 10 July 2018 Paper

Giant Magellan Telescope enclosure thermal modeling and simulation

Garrett Ek, Kawthar Kasim, Mike Stoia, Abdollah Khodadoust, Kaushik Das, Konstantinos Vogiatzis

Proceedings Volume 10705, 107051M (2018) https://doi.org/10.1117/12.2312857

KEYWORDS: Telescopes, Thermal modeling, Device simulation, Finite element methods, 3D modeling, Solid modeling, Computer aided design, Thermal analysis, Liquid crystal on silicon, Mirrors

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Proceedings Article | 10 July 2018 Presentation + Paper

On the precision of aero-thermal simulations for TMT: revisited

Konstantinos Vogiatzis, Hugh Thompson, Scott Roberts

Proceedings Volume 10705, 1070504 (2018) https://doi.org/10.1117/12.2312865

KEYWORDS: Spatial resolution, Computer simulations, Turbulence, Thirty Meter Telescope, Observatories, Image quality, Spectral resolution

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Proceedings Article | 10 July 2018 Presentation + Paper

Dome seeing sensitivity analysis for LSST

Konstantinos Vogiatzis, Bo Xin, Chuck Claver, George Angeli, Brian Selvy

Proceedings Volume 10705, 1070503 (2018) https://doi.org/10.1117/12.2312852

KEYWORDS: Large Synoptic Survey Telescope, Domes, Telescopes, Thermal modeling, Image quality, Turbulence

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Proceedings Article | 10 July 2018 Presentation + Paper

Computational fluid dynamics modeling of GMT

Konstantinos Vogiatzis, Kaushik Das, George Angeli, Bruce Bigelow, Will Burgett

Proceedings Volume 10705, 107050R (2018) https://doi.org/10.1117/12.2312858

KEYWORDS: Telescopes, Observatories, Refractive index, Image quality, Computational fluid dynamics, Computer simulations, Turbulence

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Proceedings Article | 10 July 2018 Paper

Ground layer studies for the alternate TMT site

Konstantinos Vogiatzis, Hugh Thompson, Scott Roberts, Christophe Dumas

Proceedings Volume 10705, 107051N (2018) https://doi.org/10.1117/12.2313039

KEYWORDS: Observatories, Thirty Meter Telescope, Optical turbulence, Computational fluid dynamics, Telescopes, Turbulence

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Proceedings Article | 16 August 2016 Paper

On the precision of aero-thermal simulations for TMT

Konstantinos Vogiatzis, Hugh Thompson

Proceedings Volume 9911, 991112 (2016) https://doi.org/10.1117/12.2233706

KEYWORDS: Thirty Meter Telescope, Computer simulations, Device simulation, Space telescopes, Spatial resolution, Telescopes, Monte Carlo methods, Turbulence, Observatories, Optical spheres

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Proceedings Article | 7 August 2014 Paper

Aero-thermal simulations of the TMT Laser Guide Star Facility

Konstantinos Vogiatzis, Corinne Boyer, Kai Wei, Jinlong Tang, Brent Ellerbroek

Proceedings Volume 9148, 914868 (2014) https://doi.org/10.1117/12.2057208

KEYWORDS: Telescopes, Adaptive optics, Mirrors, Laser guide stars, Laser systems engineering, Relays, Device simulation, Solid modeling, Optical simulations, Thirty Meter Telescope

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Proceedings Article | 4 August 2014 Paper

Estimating dome seeing for LSST

Jacques Sebag, Konstantinos Vogiatzis

Proceedings Volume 9150, 91500R (2014) https://doi.org/10.1117/12.2054436

KEYWORDS: Telescopes, Domes, Large Synoptic Survey Telescope, Cameras, Device simulation, Systems modeling, Monte Carlo methods, Thermal modeling, Performance modeling, 3D modeling

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Proceedings Article | 4 August 2014 Paper

TMT telescope structure thermal model

Konstantinos Vogiatzis, Amir Sadjadpour, Scott Roberts

Proceedings Volume 9150, 915011 (2014) https://doi.org/10.1117/12.2056582

KEYWORDS: Telescopes, Systems modeling, Thermal modeling, Solid modeling, Mirrors, 3D modeling, Calibration, Electronics, Solids, Thirty Meter Telescope

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Proceedings Article | 4 August 2014 Paper

Systems engineering of the Thirty Meter Telescope for the construction phase

Scott Roberts, John Rogers, Hugh Thompson, Konstantinos Vogiatzis, Douglas MacMartin, Eric Wilde, Mitchell Troy, Byoung-Joon Seo, Carl Nissly

Proceedings Volume 9150, 91500V (2014) https://doi.org/10.1117/12.2056870

KEYWORDS: Systems engineering, Observatories, Computer aided design, Control systems, Data modeling, Systems modeling, Performance modeling, Databases, Interfaces, Thirty Meter Telescope

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Proceedings Article | 4 August 2014 Paper

Heat balance and thermal management of the TMT Observatory

Hugh Thompson, Konstantinos Vogiatzis

Proceedings Volume 9150, 915012 (2014) https://doi.org/10.1117/12.2057152

KEYWORDS: Observatories, Telescopes, Thermal modeling, Systems modeling, Adaptive optics, Device simulation, Electronics, Modeling, Systems engineering, Thirty Meter Telescope

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Proceedings Article | 4 August 2014 Paper

Unsteady wind loads for TMT: replacing parametric models with CFD

Douglas MacMartin, Konstantinos Vogiatzis

Proceedings Volume 9150, 91500Q (2014) https://doi.org/10.1117/12.2057295

KEYWORDS: Telescopes, Turbulence, Mirrors, Image segmentation, Motion models, Device simulation, Actuators, Systems modeling, Servomechanisms, Thirty Meter Telescope

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Unsteady wind loads due to turbulence inside the telescope enclosure result in image jitter and higher-order image degradation due to M1 segment motion. Advances in computational fluid dynamics (CFD) allow unsteady simulations of the flow around realistic telescope geometry, in order to compute the unsteady forces due to wind turbulence. These simulations can then be used to understand the characteristics of the wind loads. Previous estimates used a parametric model based on a number of assumptions about the wind characteristics, such as a von Karman spectrum and frozen-flow turbulence across M1, and relied on CFD only to estimate parameters such as mean wind speed and turbulent kinetic energy. Using the CFD-computed forces avoids the need for assumptions regarding the flow. We discuss here both the loads on the telescope that lead to image jitter, and the spatially-varying force distribution across the primary mirror, using simulations with the Thirty Meter Telescope (TMT) geometry. The amplitude, temporal spectrum, and spatial distribution of wind disturbances are all estimated; these are then used to compute the resulting image motion and degradation. There are several key differences relative to our earlier parametric model. First, the TMT enclosure provides sufficient wind reduction at the top end (near M2) to render the larger cross-sectional structural areas further inside the enclosure (including M1) significant in determining the overall image jitter. Second, the temporal spectrum is not von Karman as the turbulence is not fully developed; this applies both in predicting image jitter and M1 segment motion. And third, for loads on M1, the spatial characteristics are not consistent with propagating a frozen-flow turbulence screen across the mirror: Frozen flow would result in a relationship between temporal frequency content and spatial frequency content that does not hold in the CFD predictions. Incorporating the new estimates of wind load characteristics into TMT response predictions leads to revised estimates of the response of TMT to wind turbulence, and validates the aerodynamic design of the enclosure.

Proceedings Article | 4 August 2014 Paper

Transient aero-thermal simulations for TMT

Konstantinos Vogiatzis

Proceedings Volume 9150, 91500P (2014) https://doi.org/10.1117/12.2056569

KEYWORDS: Telescopes, Device simulation, Monte Carlo methods, Observatories, Computer aided design, Camera shutters, Systems modeling, Interfaces, Computer simulations, Thirty Meter Telescope

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Proceedings Article | 22 July 2014 Paper

Conceptual design study to determine optimal enclosure vent configuration for the Maunakea Spectroscopic Explorer (MSE)

Kei Szeto, Konstantinos Vogiatzis, Horia Hangan, Chowdhury Jubayer, Craig Breckenridge, Nathan Loewen, Steven Bauman, Derrick Salmon

Proceedings Volume 9145, 91450A (2014) https://doi.org/10.1117/12.2056728

KEYWORDS: Telescopes, Device simulation, Spectroscopy, Mirrors, Turbulence, Wind energy, Astronomical imaging, Ions, Observatories, Signal attenuation

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Proceedings Article | 25 September 2012 Paper

Local thermal seeing modeling validation through observatory measurements

Konstantinos Vogiatzis, Angel Otarola, Warren Skidmore, Tony Travouillon, George Angeli

Proceedings Volume 8449, 844902 (2012) https://doi.org/10.1117/12.927182

KEYWORDS: Turbulence, Telescopes, Domes, Observatories, Signal detection, Mirrors, Refractive index, Fluctuations and noise, Image quality, Sensors

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Proceedings Article | 25 September 2012 Paper

Wind responses of the LSST secondary mirror

Myung Cho, Konstantinos Vogiatzis, Jacques Sebag, Douglas Neill

Proceedings Volume 8449, 844905 (2012) https://doi.org/10.1117/12.926649

KEYWORDS: Mirrors, Large Synoptic Survey Telescope, Telescopes, Adaptive optics, Image quality, Systems modeling, Wind energy, Active optics, Actuators, Finite element methods

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Proceedings Article | 25 September 2012 Paper

LSST summit enclosure-facility design optimization using aero-thermal modeling

J. Sebag, K. Vogiatzis, J. Barr, D. Neill

Proceedings Volume 8449, 844904 (2012) https://doi.org/10.1117/12.925446

KEYWORDS: Buildings, Large Synoptic Survey Telescope, Turbulence, Telescopes, Thermal modeling, Thermography, Camera shutters, Optimization (mathematics), Device simulation, Systems modeling

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Proceedings Article | 25 September 2012 Paper

An aerodynamic study of the CFHT dome using water tunnel tests and CFD

Marc Baril, Tom Benedict, Karun Thanjavur, Derrick Salmon, Konstantinos Vogiatzis, Rene Racine, Robert Breidenthal

Proceedings Volume 8449, 844903 (2012) https://doi.org/10.1117/12.925029

KEYWORDS: Telescopes, Observatories, Video, Visualization, Aerodynamics, Domes, Optical spheres, 3D modeling, Computational fluid dynamics, Thirty Meter Telescope

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Proceedings Article | 10 November 2011 Paper

Thermal modeling of the TMT Telescope

Myung Cho, Andrew Corredor, Konstantinos Vogiatzis, George Angeli

Proceedings Volume 8336, 83360V (2011) https://doi.org/10.1117/12.915634

KEYWORDS: Telescopes, Mirrors, Convection, Thermal modeling, Finite element methods, Actuators, Thermal analysis, Space telescopes, Thermography, Thirty Meter Telescope

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Proceedings Article | 10 November 2011 Paper

Aero-thermal modeling framework for TMT

Konstantinos Vogiatzis

Proceedings Volume 8336, 83360C (2011) https://doi.org/10.1117/12.915515

KEYWORDS: Thermal modeling, Telescopes, Solar radiation models, Systems modeling, Thermography, Monte Carlo methods, 3D modeling, Domes, Device simulation, Thirty Meter Telescope

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Proceedings Article | 10 November 2011 Paper

Integrated modeling and systems engineering for the Thirty Meter Telescope

George Angeli, Konstantinos Vogiatzis, Doug MacMynowski, Byoung-Joon Seo, Carl Nissly, Mitchell Troy, Myung Cho

Proceedings Volume 8336, 833605 (2011) https://doi.org/10.1117/12.919363

KEYWORDS: Telescopes, Systems modeling, Observatories, Performance modeling, Systems engineering, Stochastic processes, Adaptive optics, Mathematical modeling, Integrated modeling, Thirty Meter Telescope

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Proceedings Article | 9 August 2010 Paper

Primary mirror dynamic disturbance models for TMT: vibration and wind

Douglas MacMynowski, M. Mark Colavita, Warren Skidmore, Konstantinos Vogiatzis

Proceedings Volume 7738, 77380E (2010) https://doi.org/10.1117/12.857395

KEYWORDS: Actuators, Mirrors, Turbulence, Servomechanisms, Adaptive optics, Telescopes, Data modeling, Systems modeling, Wind energy, Control systems design

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Proceedings Article | 5 August 2010 Paper

Optical turbulence above mountains seen in 3D

S. G. Els, K. Vogiatzis, A. Otárola, R. Riddle, M. Schöck, W. Skidmore, T. Travouillon

Proceedings Volume 7733, 77331Q (2010) https://doi.org/10.1117/12.856304

KEYWORDS: Optical turbulence, 3D metrology, Turbulence, Telescopes, Current controlled current source, Atmospheric optics, Wavefront distortions, Optical telescopes, Optical testing, Scintillation

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Proceedings Article | 5 August 2010 Paper

Thermal analysis of the TMT telescope structure

Myung Cho, Andrew Corredor, Konstantinos Vogiatzis, George Angeli

Proceedings Volume 7738, 77380C (2010) https://doi.org/10.1117/12.857265

KEYWORDS: Telescopes, Convection, Thermal modeling, Thermal analysis, Finite element methods, Actuators, Mirrors, Systems modeling, Space telescopes, Thirty Meter Telescope

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Proceedings Article | 5 August 2010 Paper

Statistical approach to systems engineering for the Thirty Meter Telescope

George Angeli, Konstantinos Vogiatzis

Proceedings Volume 7738, 773817 (2010) https://doi.org/10.1117/12.858245

KEYWORDS: Telescopes, Observatories, Stochastic processes, Image quality, Error analysis, Performance modeling, Mirrors, Control systems, Systems engineering, Thirty Meter Telescope

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Proceedings Article | 5 August 2010 Paper

Thermal modeling environment for TMT

Konstantinos Vogiatzis

Proceedings Volume 7738, 77380B (2010) https://doi.org/10.1117/12.857435

KEYWORDS: Telescopes, Thermal modeling, Device simulation, Systems modeling, Finite element methods, Thermography, Mirrors, Monte Carlo methods, Solar radiation models, Temperature metrology

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Proceedings Article | 4 August 2010 Paper

LSST camera heat requirements using CFD and thermal seeing modeling

Jacques Sebag, Konstantinos Vogiatzis

Proceedings Volume 7738, 77380D (2010) https://doi.org/10.1117/12.857144

KEYWORDS: Cameras, Mirrors, Telescopes, Large Synoptic Survey Telescope, Thermal modeling, Computational fluid dynamics, Heat flux, Turbulence, Wind energy, Control systems design

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Proceedings Article | 1 October 2009 Paper

Thermal performance prediction of the TMT telescope structure

Myung Cho, Andrew Corredor, Konstantinos Vogiatzis, George Angeli

Proceedings Volume 7427, 74270E (2009) https://doi.org/10.1117/12.828057

KEYWORDS: Telescopes, Convection, Finite element methods, Thermal modeling, Thermal analysis, Space telescopes, Electronics, Control systems, Systems modeling, Thirty Meter Telescope

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Proceedings Article | 16 July 2008 Paper

Thermal performance prediction of the TMT optics

Myung Cho, Andrew Corredor, Shane Pootrakul, Konstantinos Vogiatzis, George Angeli

Proceedings Volume 7017, 701716 (2008) https://doi.org/10.1117/12.789212

KEYWORDS: Mirrors, Convection, Thermal modeling, Thermography, Heat flux, Finite element methods, Thermal analysis, Actuators, Phase transfer function, Thirty Meter Telescope

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Proceedings Article | 11 July 2008 Paper

Finite element analysis of TMT vibrations transmitted through Telescope-Enclosure-Soil Interaction

Genady Shagal, Doug MacMynowski, Konstantinos Vogiatzis

Proceedings Volume 7017, 70171Y (2008) https://doi.org/10.1117/12.792288

KEYWORDS: Telescopes, 3D modeling, Finite element methods, Systems modeling, Buildings, Fluctuations and noise, Motion models, Astronomical telescopes, Astronomy, Thirty Meter Telescope

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Proceedings Article | 10 July 2008 Paper

Status of the Thirty Meter Telescope site selection program

Matthias Schöck, Sebastian Els, Reed Riddle, Warren Skidmore, Tony Travouillon, Robert Blum, Edison Bustos, Paul Gillett, Brooke Gregory, Jerry Nelson, Angel Otarola, Juan Seguel, Joselino Vasquez, Konstantinos Vogiatzis, David Walker, Lianqi Wang

Proceedings Volume 7012, 70121X (2008) https://doi.org/10.1117/12.789704

KEYWORDS: Calibration, Temperature metrology, Telescopes, Observatories, Sensors, Turbulence, Astronomy, Clouds, Satellites, Thirty Meter Telescope

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Proceedings Article | 9 July 2008 Paper

Dome and mirror seeing estimates for the Thirty Meter Telescope

John Pazder, Konstantinos Vogiatzis, George Angeli

Proceedings Volume 7017, 70170R (2008) https://doi.org/10.1117/12.789636

KEYWORDS: Mirrors, Telescopes, Modulation transfer functions, Domes, Monte Carlo methods, Refraction, Systems modeling, Wavefronts, Thermal modeling, Thirty Meter Telescope

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Proceedings Article | 9 July 2008 Paper

Monte Carlo simulation framework for TMT

Konstantinos Vogiatzis, George Angeli

Proceedings Volume 7017, 70170V (2008) https://doi.org/10.1117/12.787933

KEYWORDS: Telescopes, Monte Carlo methods, Mirrors, Systems modeling, Performance modeling, Thermal modeling, Error analysis, Observatories, Temperature metrology, Thirty Meter Telescope

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Proceedings Article | 7 July 2008 Paper

Systems engineering for the preliminary design of the Thirty Meter Telescope

George Angeli, Scott Roberts, Konstantinos Vogiatzis

Proceedings Volume 7017, 701704 (2008) https://doi.org/10.1117/12.787220

KEYWORDS: Optical transfer functions, Point spread functions, Telescopes, Observatories, Error analysis, Mirrors, Systems engineering, Atmospheric optics, Image quality, Thirty Meter Telescope

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Proceedings Article | 7 July 2008 Paper

Advances in aerothermal modeling for TMT

Konstantinos Vogiatzis

Proceedings Volume 7017, 70170Q (2008) https://doi.org/10.1117/12.787922

KEYWORDS: Systems modeling, Thermal modeling, Telescopes, Mirrors, Device simulation, Solids, Observatories, Heat flux, Solar radiation models, Thirty Meter Telescope

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Proceedings Article | 23 June 2006 Paper

TMT studies on thermal seeing modeling: mirror seeing model validation

Konstantinos Vogiatzis, Robert Upton

Proceedings Volume 6271, 627115 (2006) https://doi.org/10.1117/12.670278

KEYWORDS: Mirrors, Refractive index, Thermal modeling, Geometrical optics, Atmospheric optics, Systems modeling, Astronomy, Turbulence, Zemax, Thirty Meter Telescope

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Proceedings Article | 23 June 2006 Paper

TMT studies on the influence of short term changes of local thermodynamic conditions on the seeing: CFD vs. observations

S. Els, K. Vogiatzis

Proceedings Volume 6267, 626723 (2006) https://doi.org/10.1117/12.672161

KEYWORDS: Heat flux, Convection, Turbulence, Computational fluid dynamics, Astronomy, Computer simulations, Telescopes, Scanning probe microscopy, Thermodynamics, Observatories

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Proceedings Article | 22 June 2006 Paper

Modeling wind-buffeting of the Thirty Meter Telescope

Douglas MacMynowski, Carl Blaurock, George Angeli, Konstantinos Vogiatzis

Proceedings Volume 6271, 62710M (2006) https://doi.org/10.1117/12.672706

KEYWORDS: Telescopes, Mirrors, Turbulence, Performance modeling, Systems modeling, Optical instrument design, Motion models, Image segmentation, Finite element methods, Thirty Meter Telescope

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Proceedings Article | 22 June 2006 Paper

Strategies for estimating mirror and dome seeing for TMT

Konstantinos Vogiatzis, George Angeli

Proceedings Volume 6271, 62710O (2006) https://doi.org/10.1117/12.670264

KEYWORDS: Mirrors, Thermal modeling, Convection, Telescopes, Systems modeling, Domes, Heat flux, Wind energy, Device simulation, Thirty Meter Telescope

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Proceedings Article | 16 September 2004 Paper

Parametric modeling and control of telescope wind-induced vibration

Douglas MacMynowski, George Angeli, Konstantinos Vogiatzis, Joeleff Fitzsimmons, Stephen Padin

Proceedings Volume 5497, (2004) https://doi.org/10.1117/12.552282

KEYWORDS: Mirrors, Telescopes, Turbulence, Space telescopes, Optical instrument design, Systems modeling, Performance modeling, Secondary tip-tilt mirrors, Wind measurement, Control systems

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Proceedings Article | 16 September 2004 Paper

Modeling tools to estimate the performance of the Thirty Meter Telescope: an integrated approach

George Angeli, Jennifer Dunn, Scott Roberts, Douglas MacMynowski, Anna Segurson, Konstantinos Vogiatzis, Joeleff Fitzsimmons

Proceedings Volume 5497, (2004) https://doi.org/10.1117/12.552523

KEYWORDS: Telescopes, Mirrors, Integrated modeling, Device simulation, Sensors, Integrated optics, Actuators, Optical instrument design, Astronomy, Thirty Meter Telescope

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Proceedings Article | 16 September 2004 Paper

Estimating the effect of wind loading on extremely large telescope performance using computational fluid dynamics

Konstantinos Vogiatzis, Anna Segurson, George Angeli

Proceedings Volume 5497, (2004) https://doi.org/10.1117/12.551477

KEYWORDS: Telescopes, Mirrors, Finite element methods, Large telescopes, Integrated modeling, Space telescopes, Systems modeling, Computational fluid dynamics, Integrated optics, Thirty Meter Telescope

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Proceedings Article | 7 July 2004 Paper

Site characterization through the use of computational fluid dynamics

Konstantinos Vogiatzis, David De Young

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566346

KEYWORDS: Turbulence, Large telescopes, Computational fluid dynamics, Wind measurement, Lanthanum, Numerical simulations, Laminated object manufacturing, Telescopes, Spatial resolution, Wind energy

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Proceedings Article | 7 July 2004 Paper

Numerical simulations of airflow in very large telescope enclosures

David De Young, Konstantinos Vogiatzis

Proceedings Volume 5382, (2004) https://doi.org/10.1117/12.566235

KEYWORDS: Telescopes, Large telescopes, Gemini Observatory, Optical instrument design, Space telescopes, Turbulence, Device simulation, Mirrors, Integrated modeling, Numerical simulations

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