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Linear generator
Posted Nov 18, 2016, 6:15 a.m. EST Mesh, Studies & Solvers Version 5.1 2 Replies
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Hello
I am working on linear generator (moving magnet ) and couldn't able to put an expression in Prescribed Mesh Displacement for magnets (Prescribe z displacement in moving mesh ale). Can anyone help me with the expression, if i need frequency of 10 Hz and the displacement of 40 mm.
I am working on linear generator (moving magnet ) and couldn't able to put an expression in Prescribed Mesh Displacement for magnets (Prescribe z displacement in moving mesh ale). Can anyone help me with the expression, if i need frequency of 10 Hz and the displacement of 40 mm.
2 Replies Last Post Nov 23, 2016, 11:31 p.m. EST
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Posted:
7 years ago
Hi Aman,
The following example model of a tubular generator will be useful here.
www.comsol.com/model/tubular-permanent-magnet-generator-20381
In addition, you might want to refer to this blog post as well:
www.comsol.com/blogs/modeling-linear-motors-or-generators-in-comsol-multiphysics/
Best Regards,
Nirmal
The following example model of a tubular generator will be useful here.
www.comsol.com/model/tubular-permanent-magnet-generator-20381
In addition, you might want to refer to this blog post as well:
www.comsol.com/blogs/modeling-linear-motors-or-generators-in-comsol-multiphysics/
Best Regards,
Nirmal
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Posted:
7 years ago
Hello Nirmal,
Thank you for your response. Got a clearer picture about linear generator simulation.
But now the issue is in time dependent solution , the following error is been showing up every time.
"Undefined value found.
- Detail: Undefined value found in the equation residual vector.
There are 269 degrees of freedom giving NaN/Inf in the vector for the variable r.
at coordinates: (0.014,0.03), (0,0.03), (0.014,0.0290231), (0.014,0.0280462), (0.0131986,0.0282273), ...
- Feature: Stationary Solver 1 (sol1/s1) ".
Hope you can provide a solution for this.
Best Regards,
Aman Saha
Thank you for your response. Got a clearer picture about linear generator simulation.
But now the issue is in time dependent solution , the following error is been showing up every time.
"Undefined value found.
- Detail: Undefined value found in the equation residual vector.
There are 269 degrees of freedom giving NaN/Inf in the vector for the variable r.
at coordinates: (0.014,0.03), (0,0.03), (0.014,0.0290231), (0.014,0.0280462), (0.0131986,0.0282273), ...
- Feature: Stationary Solver 1 (sol1/s1) ".
Hope you can provide a solution for this.
Best Regards,
Aman Saha