m1 6.15[kg] "Mass 1"
m2 6[kg] "Mass 2"
m3 12.58[kg] "Mass 3"
m4 50.34[kg] "Mass 4"
k1 6[kN/m] "Spring constant, spring 1"
k2 6[kN/m] "Spring constant, spring 2"
k3 10[kN/m] "Spring constant, spring 3"
k4 10[kN/m] "Spring constant, spring 4"
k5 18[kN/m] "Spring constant, spring 5"
c1 0.3[kN*s/m] "Damping coefficient, damper 1"
c2 0.65[kN*s/m] "Damping coefficient, damper 2"
c4 1.9[kN*s/m] "Damping coefficient, damper 4"
ms 0.3[kg] "Mass, shoe sole"
ks 403[kN/m] "Spring constant, shoe sole"
cs 2170[kN*s/m] "Damping coefficient, shoe sole"
kg 880[kN/m] "Spring constant, ground"
ub 10[mm] "Base excitation"