Optimal Design for the Passive Control of Vibration Based on Limit Cycles

Table 3

Values of the design variables for the optimization of dynamic impact absorbers mitigating vibration (all measures are dimensionless).

Type	Parameter	Without absorbers	Lower bound	Upper bound	Optimum
Design variables	Damping coefficient	—	0.001	2.0	0.268
	Damping coefficient	—	0.001	2.0	0.295
	Damping coefficient	—	0.001	2.0	0.169
	Damping coefficient	—	0.001	2.0	0.218
	Damping coefficient	—	0.001	2.0	0.218
	Frequency ratio	—	0.001	2.0	1.317
	Frequency ratio	—	0.2	2.0	1.238
	Frequency ratio	—	0.4	2.0	1.265
	Frequency ratio	—	0.6	2.0	1.243
	Frequency ratio	—	0.8	2.0	1.3