Study of the Complex Stiffness of a Vibratory Mechanical System with Shape Memory Alloy Coil Spring Actuator

Table 4

Relationship between damping factor and loss factor for the resonance condition.

Temperature (°C)	2 * damping factor (2𝜁eq)	Loss factor 𝜂
25	0.06074	0.07204
30	0.06192	0.07265
35	0.06248	0.07529
40	0.06358	0.07643
45	0.06482	0.07635
50	0.05646	0.05988
55	0.0493	0.05043
60	0.04096	0.04268
65	0.04054	0.03810
70	0.03894	0.03385