An Ultra-Low Frequency Two DOFs’ Vibration Isolator Using Positive and Negative Stiffness in Parallel

Figure 13

The velocity admittance curves of logical axes (the red solid line for PNSP and the green solid line for PS), (a) X translation, (b) Y translation, (c), Z rotation, (d) Z translation, (e) Y rotation, and (f) X rotation.

(a)

(b)

(c)

(d)

(e)

(f)