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A possible solution to "mass matrix is zero" error
Posted 28 févr. 2018, 16:13 UTC−5 Piezoelectric Devices, Structural & Acoustics, Structural Mechanics Version 5.2a 0 Replies
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Hi all,
For those who get this error, one possible cause is that the mesh is only performed at the surface of the structure. A quick way to check is to change the mesh to "Physic-controlled" to see if it runs without error. If so, the problem can be solved with "User-controlled" mesh by "Swept" the region, which can be found by right clicking the mesh tab. Please see "Flow Through a Pipe Elbow" in COMSOL application library for more details about sweeping mesh in 3D. Hope it helps.
Best,
Zhetao
Hello Zhetao Jia
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