Experimental Approach to Active Mounts Using Electromagnetic Actuator and Rubber with Consideration of Shock Resistance for Naval Shipboard Equipment

Table 10

Control results for a 7-DOF system with the hybrid mount.

#		26.7 Hz	53.4 Hz	80.1 Hz	Average (dB)
Point 1	Passive	−46.2	−59.9	−54.7
	Active	−70.3	−78.3	−79.0
	Difference	−24.1	−18.4	−24.3	−22.3
Point 2	Passive	−47.0	−36.9	−44.4
	Active	−68.9	−59.4	−71.2
	Difference	−21.9	−22.5	−26.8	−23.7
Point 3	Passive	−40.4	−39.9	−51.9
	Active	−64.4	−70.9	−61.0
	Difference	−20.0	−31.0	−9.1	−20.0
Point 4	Passive	−44.1	−51.2	−66.8
	Active	−59.4	−66.9	−73.9
	Difference	−15.3	−15.7	−7.1	−12.7
Average (dB)					−19.7