TABLE I.
Status Sequence of SMA Torsion Springs
| Case I | 1 | 2 | 3 | 4 | 5 | 6 | 7 | … |
| SMA A | S1 | S2 | S23 | S3 | S4 | S41 | S1 | … |
| SMA B | S3 | S4 | S41 | S1 | S2 | S23 | S3 | … |
| Case II | 1 | 2 | 3 | 4 | 5 | 6 | 7 | … |
| SMA A | S1 | S12 | S2 | S3 | S34 | S4 | S1 | … |
| SMA B | S3 | S34 | S4 | S1 | S12 | S2 | S3 | … |
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