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Structural Dynamics

WIDE RANGE OF CAPABILITIES

Quartus has a wide range of capabilities for performing structural dynamic analysis. Capabilities include:​

  • Normal modes analysis including modal effective mass

  • Transient analysis for time-domain events

  • Sine vibration analysis

  • Random vibration analysis

  • Shock response spectra (SRS) analysis

  • Explicit analysis methods (Abaqus and LS-DYNA) for highly nonlinear elastic problems

  • Mechanism simulation including integrated stress/deflection analysis

  • Jitter and optical performance

ADVANCED FEATURES

Quartus has extensive experience in advanced techniques including:

  • Superelements (substructuring) for large models, component mass and stiffness matrices, and efficient reanalysis

  • Fixed-interface (Craig-Bampton) modal synthesis method

  • Free-interface (MacNeal-Rubin and Hruda-Benfield) modal synthesis methods

  • Mode acceleration and residual vector methods for accurate responses

  • Data recovery matrices including accurate element forces and stresses

  • NastranDMAP alters for special analysis and output

CHALLENGING ENVIRONMENTS

Quartus can analyze complex structures and environments such as:

  • Launch vibration and acoustics for spacecraft

  • Electronic components for shock and vibration

  • Missile systems for transient and quasi-static loads

  • Aircraft hardware for vibroacoustic environments

  • Avionics enclosures for random vibration and shock conditions

  • Vehicle impact on land and water including airbag attenuation

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