| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
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127
|
Sat Mar 17 15:27:48 2018 |
rana | General | General | file size >> small | When saving your COMSOL files do these
two things to make the files much smaller
(good for saving in version control and sharing): |
|
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128
|
Mon Aug 20 15:44:56 2018 |
rana | General | General | file size >> small | Also,
click 'Clear Mesh'
under the mesh menu
'Clear |
|
|
138
|
Tue May 12 14:16:28 2020 |
Koji | General | General | FEA tutorial resources | cf. Forwarded email from Stephen
1) Tuesday Demo - Basics of FEA
Meshing G2000696 |
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142
|
Thu Jul 6 11:35:55 2023 |
Rajashik | General | General | Basic Demonstration of Cavity Scan | Attached are plots of how HOMs are introduced
by defects in the mirror. This is just an
example for a basic FP Cavity. |
|
|
144
|
Sat Jul 29 00:19:02 2023 |
Rajashik | Optics | General | | I have coded a rudimentary triangular model
using parameters provided by Aaron. In this
model, I have kept a simple PDH signal which |
|
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4
|
Thu May 2 14:00:36 2013 |
Koji | General | Configuration | test mass TR with Levin's approach | Thermo-refractive noise in a finite
cylindrical/infinite test mass with Levin's
approach |
|
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76
|
Mon Sep 16 10:07:32 2013 |
Evan | General | Configuration | COMSOL 4.3 on the OS X command line | If you're running Matlab scripts that iterate
over simulation parameters (à la Tara), |
|
|
99
|
Tue Sep 30 11:30:27 2014 |
Nic, Dmass, Evan | General | Configuration | Gravity in Comsol | Here
is a set of slides by Yoichi Aso on how to
handle gravity in Comsol. |
|
|
100
|
Sat Sep 5 15:04:43 2015 |
Dennis Coyne | Mechanics | Configuration | summary of FEA modal model to State Space model | At the 2014 commissioning |
|
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101
|
Sat Sep 5 15:17:41 2015 |
rana | General | Configuration | FEA logs merged | I moved the only entry from the 'ENG_FEA'
log into the COMSOL log and then renamed
that logbook as 'FEA' since we don't |
|
|
102
|
Fri Dec 4 18:32:02 2015 |
rana | General | Configuration | COMSOL: remote server w/ matlab | This summarizes how to get the remote comsol
server to run. COMSOL 5.1.0.234 is now on
tegmeni thanks to Larry. |
|
|
110
|
Mon Jul 24 15:35:34 2017 |
Mariia | General | Configuration | Running Comsol to Matlab | WIth Gautam's help, I have created
a user directory in 40 meter Lab and
copied Rana's documents (MATLAB |
|
|
111
|
Mon Jul 24 15:54:26 2017 |
Koji | General | Configuration | Running Comsol to Matlab | The number of licenses already used by
whom / still remains can be confirmed by
running the following command on a comsol-installed |
|
|
112
|
Wed Jul 26 20:14:46 2017 |
rana | General | Configuration | Running Comsol to Matlab | I've just tried this out on my desktop
machine using COMSOL 5.1 and its still working.
Which COMSOL is installed on optimus at the |
|
|
113
|
Fri Jul 28 15:48:58 2017 |
Mariia | General | Configuration | Comsol batch for windows | Using the written path from elog by
ericq: Computer
Scripts/Programs, Comsol can be run from |
|
|
139
|
Tue Aug 11 11:16:29 2020 |
aaron | General | Configuration | COMSOL with Matlab without display | When running comsol with matlab interface
on sandbox1, it is usually most convenient
to ssh with screen forwarding (eg '-CY') |
|
|
140
|
Tue Aug 11 16:35:07 2020 |
aaron | General | Configuration | COMSOL: remote server w/ matlab | To run COMSOL on sandbox1 with no
graphical Interface, here are the
steps that worked for me (Tue Aug 11 16:35:51 |
|
|
82
|
Thu Apr 17 16:52:09 2014 |
Evan | General | Characterization | Interpreting logfiles and picking a solver | Here are two entries by Walter Frei on
the Comsol blog that I've found useful.
Solving |
|
|
77
|
Wed Nov 13 23:55:44 2013 |
Chris Couste | Optics | Analysis | Optical Mount Vibrational Analysis | Project: Vibrational Analysis of Optical
Mounts
Goal: Use COMSOL to run finite element |
|
|
78
|
Mon Nov 18 15:56:59 2013 |
Chris Couste | Optics | Analysis | Representative Models | The simpler models of the optical mounts
are finished, they will be run through the
comsol analysis software soon. |
|
|
79
|
Fri Nov 22 21:04:53 2013 |
Chris Couste | Optics | Analysis | analysis | The analysis is making nice eigenmode
and stress mode models, but the displacement
experiment needs work. Should be fixed by |
|
|
80
|
Fri Jan 24 17:26:38 2014 |
Chris Cousté | Optics | Analysis | Mount Analysis Functional! | The comsol eigenmode analysis is
complete, and the only thing left to do on
this part of the project is to run the analysis |
|
|
81
|
Sun Feb 16 21:10:56 2014 |
Chris Cousté | Optics | Analysis | Optical Mount data compilation 1: Aluminum | The time is finally here! this is
the highest displacement of each mount in
its lowest few eigenfrequencies, using 6061 |
|
|
105
|
Tue Jun 28 15:50:45 2016 |
Joy Westland | Mechanics | Analysis | A Simple Model of the Modal Analysis of a Cantilever Circular/Cylinder Cross Section in ANSYS tutorial | Here is a tutorial to implement a simple
Modal Analysis of a Cantilever Cylinder
1. Open the ANSYS workbench |
|
|
106
|
Tue Jun 28 16:54:23 2016 |
Nikhil Mathur | Mechanics | Analysis | Ansys 14.5 Indroductory Tutorial: Modal Frequency Convergence | This tutorial will go through how to show
frequency convergence for a cylindrical cantilever
using Ansys 14.5 and Mathematica. |
|
|
107
|
Wed Jun 29 14:14:44 2016 |
Joy Westland | Mechanics | Analysis | ANSYS Tutorials with Basic Meshing | Here are a series of tutorials for basic
meshing principles from ANSYS Meshing Basics:
ANSYS Meshing Fine Mesh |
|
|
129
|
Sun Aug 26 16:42:54 2018 |
rana | Mechanics | Analysis | Test Mass Thermal Noise: Consistency Checks | For the Voyager test masses, we have been
considering a barrel coating to increase
the IR emissivity to increase the radiative |
|
|
143
|
Fri Jul 21 16:42:57 2023 |
Rajashik | Optics | Analysis | | Initially, ideal conditions were considered,
without any deformations or thermal heating
effects in the mirrors. This offered a baseline |
|
|
3
|
Tue Apr 2 19:24:07 2013 |
Emory Brown | Optics | | First steps producing a Finite Element Model to find the internal Brownian noise of a LIGO test mass |
Motivation:
Reduction |
|
|
83
|
Sun Jun 22 23:44:56 2014 |
Sam Moore | Optics | | Going through Heinert's 'TR noise of cylindrical test masses' paper | At this point, my are goals are to 1) convert
the time-dependent heat equation into stationary,
complex form, 2) use the Levin approach to |
|
|
84
|
Mon Jun 23 11:40:17 2014 |
Sam Moore | Optics | | Going through Heinert's 'TR noise of cylindrical test masses' paper |
|
|
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85
|
Mon Jun 23 16:10:17 2014 |
Matt A. | Optics | | Going through Heinert's 'TR noise of cylindrical test masses' paper |
|
|
|
91
|
Sat Jul 5 13:04:32 2014 |
Sam Moore | Optics | | Heinert Model TR Noise Verification | Agreement with Heinert's paper for cylindrical
TR noise has now been achieved. Using
the stationary state assumption to calculate |
|
|
92
|
Mon Jul 7 19:47:00 2014 |
Koji | Optics | | Heinert Model TR Noise Verification | How close are these FEA calculations with
the analytical values?
Can you plot residual too? (Put analytical |
|
|
94
|
Fri Jul 11 10:58:18 2014 |
not Koji | Optics | | Heinert Model TR Noise Verification |
|
|
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131
|
Thu Feb 14 12:38:51 2019 |
Ching Pin | Mechanics | | comsol modelling | So I did a simple comsol model of laser
heating of a silicon disk, with only radiation,
to see the temperature variation at steady |
|
|
132
|
Fri Feb 15 21:05:31 2019 |
Ching Pin | Mechanics | | comsol modelling |
So I got the time dependence to
work, but I'm not sure what went wrong |
|
|
133
|
Tue Feb 19 19:52:53 2019 |
Ching Pin | Mechanics | | comsol modelling | The time step response to heating via laser
(22.5 mW) is given in the attached picture,
for 2 starting temperatures, 122.5 K and |
|
|
134
|
Fri Mar 1 19:33:40 2019 |
Ching Pin | Mechanics | | comsol modelling | I've changed the heating to be from
two heat sources, to better model the situation
with a heater and a laser. The heater deposits |
|
|
135
|
Mon Mar 4 17:22:07 2019 |
Ching Pin | Mechanics | | comsol modelling | I've updated the material properties
to vary with temperature, mainly in the range
of 90-140 K. Using the parametric sweep function |
|
|
136
|
Wed Mar 6 09:51:18 2019 |
Ching Pin | Mechanics | | comsol modelling | So I tried adding the sapphire lens to
the comsol model, and I am having teething
issues. I can't seem to get the solver |
|
|
137
|
Thu Mar 7 10:10:37 2019 |
Ching Pin | Mechanics | | comsol modelling | There are no issues with the thermal side
of the modeling, the issue seems to be with
the structural mechanics side. I'm not |
|