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COMSOL elog |
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Thu Feb 14 12:38:51 2019, Ching Pin, Mechanics, , comsol modelling   
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Fri Feb 15 21:05:31 2019, Ching Pin, Mechanics, , comsol modelling
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Tue Feb 19 19:52:53 2019, Ching Pin, Mechanics, , comsol modelling
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Fri Mar 1 19:33:40 2019, Ching Pin, Mechanics, , comsol modelling  
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Mon Mar 4 17:22:07 2019, Ching Pin, Mechanics, , comsol modelling   
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Wed Mar 6 09:51:18 2019, Ching Pin, Mechanics, , comsol modelling
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Thu Mar 7 10:10:37 2019, Ching Pin, Mechanics, , comsol modelling
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Message ID: 135
Entry time: Mon Mar 4 17:22:07 2019
In reply to: 134
Reply to this: 136
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Author: |
Ching Pin |
Type: |
Mechanics |
Category: |
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Subject: |
comsol modelling |
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I've updated the material properties to vary with temperature, mainly in the range of 90-140 K. Using the parametric sweep function to vary the input power of the heater, we get the eigenfreqencies' dependence on temperature to show up. The fractional dependence of 1.3e-5 /K around 123 K matches with what Aaron calculated in this elog entry, which is always a good sign that nothing is going horribly wrong. I've also added the flats to the silicon disc, for better accuracy. See the screenshots below showing the frequency shift with temperature. |
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