Kind of beam I-Profil DIN 1025 —S235JR-IPB 180 Number of stiffening sheets 16 Thickness of stiffening sheets $t=14\text{\hspace{0.17em}}\text{mm}$ Modal mass of foundation ( ${m}_{\text{f}}={m}_{\text{fDL}}={m}_{\text{fDR}}={m}_{\text{fNL}}={m}_{\text{fNR}}$ ) ${m}_{\text{f}}=10\text{\hspace{0.17em}}\text{kg}$ Mechanical loss factor ( $\mathrm{tan}{\delta }_{\text{f}}=\mathrm{tan}{\delta }_{\text{fDL}}=\mathrm{tan}{\delta }_{\text{fDR}}=\mathrm{tan}{\delta }_{\text{fNL}}=\mathrm{tan}{\delta }_{\text{fNR}}$ ) $\mathrm{tan}{\delta }_{\text{f}}=0.04$ Subsitute stiffness of foundation (machine directly mounted on foundation): · ${c}_{\text{fx}}={c}_{\text{fxDL}}={c}_{\text{fxDR}}={c}_{\text{fxNL}}={c}_{\text{fxNR}}$ ${c}_{\text{fx}}=1000\text{\hspace{0.17em}}\text{kN}/\text{mm}$ · ${c}_{\text{fy}}={c}_{\text{fyDL}}={c}_{\text{fyDR}}={c}_{\text{fyNL}}={c}_{\text{fyNR}}$ ${c}_{\text{fy}}=146\text{\hspace{0.17em}}\text{kN}/\text{mm}$ · ${c}_{\text{fz}}={c}_{\text{fzDL}}={c}_{\text{fzDR}}={c}_{\text{fzNL}}={c}_{\text{fzNR}}$ ${c}_{\text{fz}}=1440\text{\hspace{0.17em}}\text{kN}/\text{mm}$ Subsitute stiffness of foundation (machine mounted with actuators on foundation): · ${c}_{\text{fx}}={c}_{\text{fxDL}}={c}_{\text{fxDR}}={c}_{\text{fxNL}}={c}_{\text{fxNR}}$ ${c}_{\text{fx}}=42\text{\hspace{0.17em}}\text{kN}/\text{mm}$ · ${c}_{\text{fy}}={c}_{\text{fyDL}}={c}_{\text{fyDR}}={c}_{\text{fyNL}}={c}_{\text{fyNR}}$ ${c}_{\text{fy}}=20.5\text{\hspace{0.17em}}\text{kN}/\text{mm}$ · ${c}_{\text{fz}}={c}_{\text{fzDL}}={c}_{\text{fzDR}}={c}_{\text{fzNL}}={c}_{\text{fzNR}}$ ${c}_{\text{fz}}=1440\text{\hspace{0.17em}}\text{kN}/\text{mm}$