Table 3 Parameters of SMA rotary actuator.
From: An LSTM-driven thermoelectric coupling response prediction method for shape memory alloy actuators
No. | Parameter | Value | Unit |
|---|---|---|---|
1 | Young’s modulus of austenite and martensite | 83 × 109、38 × 109 | Pa |
2 | The start and finish temperatures of austenite transformation | 32、45 | ℃ |
3 | The start and finish temperatures of martensite transformation | 58、23 | ℃ |
4 | The phase transition temperatures the intermediate phase AR and MR | 41、52 | ℃ |
5 | Material density of SMA | 6.45 × 103 | Kg·m3 |
6 | Thermal expansion coefficient | 9.5 × 10−6 | --- |
7 | Length of SMA wire | 0.165 | m |
8 | Diameter of SMA wire | 0.2 × 10−3 | m |
9 | The maximum phase transformation strain of SMA wire | 3.5 | % |
10 | Stiffness coefficient of the spring | 261 | N·m−1 |
11 | Rotation radius of pulley | 3.5 × 10−2 | m |
12 | Mass of the pulley | 5.6 × 10−2 | kg |
