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Engineering
Mechanical Engineering
Amplitude based frequency response simulation in Abaqus
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[QUOTE="FEAnalyst, post: 6655337, member: 658802"] Here’s a quote from Abaqus documentation (chapter about SSD analyses): [I]It is not possible to prescribe nonzero displacements and rotations directly as boundary conditions in mode-based dynamic response procedures. Therefore, in a mode-based steady-state dynamic analysis, the motion of nodes can be specified only as base motion; nonzero displacement or acceleration history definitions given as boundary conditions are ignored, and any changes in the support conditions from the eigenfrequency extraction step are flagged as errors.[/I] So you have to either use a base motion BC or apply a force instead. [/QUOTE]
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Amplitude based frequency response simulation in Abaqus
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