Fuzzy Control for Seismic Protection of Semiactive Base-Isolated Structures Subjected to Near-Fault Earthquakes

Table 4

Fuzzy control rules adopted for sublevel fuzzy control.

Velocity of isolated floor	Displacement of isolated floor
	NL	NM	NS	ZE	PS	PM	PL
NL	VL	VL	L	L	M	S	ZE
NM	VL	L	L	M	S	ZE	S
NS	L	L	M	S	ZE	S	M
ZE	L	M	S	ZE	S	M	L
PS	M	S	ZE	S	M	L	L
PM	S	ZE	S	M	L	L	VL
PL	ZE	S	M	L	L	VL	VL