This adds the option to prescribe an oscillatory motion for the structure using penalty springs.
There was also an incorrect option specified that used both nodal quadrature without mass lumping. This combination of options required a smaller time step for stability. This fixes that option, retunes the penalty springs, and changes some default options.
This adds the option to prescribe an oscillatory motion for the structure using penalty springs.
There was also an incorrect option specified that used both nodal quadrature without mass lumping. This combination of options required a smaller time step for stability. This fixes that option, retunes the penalty springs, and changes some default options.