Dynamic Analysis
Vertical Acceleration PSD at Select PCB Locations from Random Vibration Analysis
High cyclic stresses in the end pins of components are a common
reason for the structural failure of PCBs. This is especially significant
in environments where dynamic loads are predominant, like
automobiles and avionics. Hence an accurate estimate of stresses is
crucial to predict the life of components. FEAP, along with
NISA/DYNAMICS, provides a tool to obtain the dynamic response of
PCBs. Refined meshes can then be created around ICs using the submodeling
technique. The stresses predicted by these analyses are
then used to calculate the fatigue life.
MODELING CAPABILITIES
- Composite PCB with components
- Edge and point boundary conditions
- Lumped masses and stiffeners
ANALYSIS HIGHLIGHTS
- Eigenvalue analysis
- Frequency response
- Random vibration
- Transient response
- Mode shapes and natural frequencies
- Time history of displacements, velocities, and accelerations
- Power spectral density of displacements, velocities and
accelerations
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