Cobham adds modal solver to Opera-3D software
Cobham Technical Services has extended the multiphysics capabilities of its Opera-3D finite element software.
The new modal solver tool, known as STRESS/EV, can be used to analyse natural vibration modes and is said to greatly reduce the complexity and timescales of design projects.
Cobham says one of the key benefits is a further reduction in the need to create physical prototypes to explore the behaviour of a proposed design concept.
The tool works by finding a user-specified number of eigenvalues within a specified frequency range before calculating the eigenvectors of each mode.
It works in conjunction with the static stress analysis capability of Opera which calculates the deformation, stresses and strains of a body which is subject to external and internal forces.
The forces calculated from electromagnetic fields can be used as input to the stress analysis.
STRESS/EV accommodates isotropic, orthotropic and fully anisotropic materials, the properties of which can be specified as a constant or an expression.
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