Optimal Control of Semiactive Two-Stage Vibration Isolation Systems for Marine Engines

Figure 9

The force transmitted to the base under different control measures. Solid line: excitation force; dashed line: passive isolation; dotted line: optimal control. (a) r = 600 r/min, (b) r = 900 r/min, (c) r = 1200 r/min, (d) r = 1800 r/min, (e) r = 2400 r/min, and (f) r = 3000 r/min.

(a)

(b)

(c)

(d)

(e)

(f)