m | 100 | kg | mass of the damping body |
mR | 40 | kg | mass of the rotor |
mt | | kg | mass of the impact element |
k1 | 1.5 ×105 | N m−1 | linear stiffness coefficient |
JRT | 5 | kg m2 | moment of inertia of the rotor |
b | 1.5 × 103 | N s m−1 | damping coefficient of the suspension |
kt | 8 × 104 | N m−1 | coupling stiffness of the impact element |
bt | 500 | N s m−1 | damping coefficient of the impact element |
eT | 2 | mm | eccentricity of the rotor center of gravity |
Φ | | rad | rotation angle of the rotor |
MZ | 100 | N m | starting moment |
kM | 8 | N m s rad−1 | negative of the motor characteristic slope |
α | 1 | s−1 | parameter of the baseplate excitation |
ω | | rad s−1 | baseplate excitation frequency |
A | 1 | mm | ground vibration amplitude |
kc | 4 × 107 | N m−1 | contact stiffness |
bc | 3 × 103 | N s m−1 | coefficient of contact damping |