Pall-typed frictional damper (PFD) has higher capacity of energy dissipation. whereas shape memory alloy (SMA) has excellent superelastic performance. Therefore. combining PFD and SMA together as a brace system has a great prospect in vibration control of structures. https://www.alarecre.com/Virescent-Harmony-Galaxy-A14-5G-Clear-Case-p106336/