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KB 001657 | Steady-State Solution for Periodically Excited Structures
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First Steps with RFEM
Description
By means of the modal analysis in the DYNAM Pro - Forced Vibrations add-on module it is possible to determine the steady-state for periodically excited structures. This is an advantage if only the structure's steady state is of interest. Instead of the complete solution of the equation of motion, only the special solution is displayed.
Keywords
Dlubal Knowledge Base RSTAB Dynamics Dynamic analysis Harmonic load Steady-state solution Dlubal KB Knowledge Base Technical Contribution
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Steady-State Solution for Periodically Excited Structures
By means of the modal analysis in the DYNAM Pro - Forced Vibrations add-on module it is possible to determine the steady-state for periodically excited structures.
Considering the Stiffness of Gas Solids in Nonlinear Time History Analysis
The stiffness of gas given by the ideal gas law pV = nRT can be considered in the nonlinear dynamic analysis.
The calculation of gas is available for accelerograms and time diagrams for both the explicit analysis and the nonlinear implicit Newmark analysis. To determine the gas behaviour correctly, at least two FE layers for gas solids should be defined.
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