Longitudinal stiffness and transverse stiffness
positive stiffness and negative stiffness
ratio of dynamic stiffness and static stiffness
3-D dynamic stiffness matrix
Absolute rotational stiffness
accurately integrated stiffness matrix
active stiffness control
Active Variable Stiffness
active variable stiffness ． damping control
active variable stiffness control
active variable stiffness．damping system
additional column stiffness
additional column stiffness ratio