
Structural Dynamics
WIDE RANGE OF CAPABILITIES
Quartus has a wide range of capabilities for performing structural dynamic analysis. Capabilities include:
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Normal modes analysis including modal effective mass
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Transient analysis for time-domain events
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Sine vibration analysis
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Random vibration analysis
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Shock response spectra (SRS) analysis
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Explicit analysis methods (Abaqus and LS-DYNA) for highly nonlinear elastic problems
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Mechanism simulation including integrated stress/deflection analysis
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Jitter and optical performance

ADVANCED FEATURES
Quartus has extensive experience in advanced techniques including:
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Superelements (substructuring) for large models, component mass and stiffness matrices, and efficient reanalysis
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Fixed-interface (Craig-Bampton) modal synthesis method
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Free-interface (MacNeal-Rubin and Hruda-Benfield) modal synthesis methods
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Mode acceleration and residual vector methods for accurate responses
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Data recovery matrices including accurate element forces and stresses
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NastranDMAP alters for special analysis and output

CHALLENGING ENVIRONMENTS
Quartus can analyze complex structures and environments such as:
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Launch vibration and acoustics for spacecraft
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Electronic components for shock and vibration
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Missile systems for transient and quasi-static loads
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Aircraft hardware for vibroacoustic environments
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Avionics enclosures for random vibration and shock conditions
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Vehicle impact on land and water including airbag attenuation
