Table 1 Mass and inertia for all wheelchair and dummy components included in model
From: Manual wheelchair downhill stability: an analysis of factors affecting tip probability
| Mass (kg) | Inertia: Ixx, Iyy, Izz, Ixy, Iyz, Ixz (kg.m2) | |
|---|---|---|
| Component | ||
| Front wheels (×2) | 0.38 | 0.0005, 0.0009, 0.0005, 0, 0, 0 |
| Rear wheels (×2) | 1.80 | 0.0670, 0.1323, 0.0670, 0.0023, 0, 0 |
| Seat (inc. gas springs) | 3.21 | 0.0645, 0.0529, 0.0892, 0, 0, − 0.0044 |
| Backrest | 1.24 | 0.0435, 0.0253, 0.0242, 0 0–0.0016 |
| Wheelchair frame | 3.19 | 0.1328, 0.1187, 0.2024, 0 0–0.0117 |
| Total wheelchair mass | 12.00 | |
| Torso | 62.80 | 0.9439, 0.6674, 1.3138, 0, 0, 0.0730 |
| Thigh | 42.16 | 0.9682, 0.5219, 1.2659, 0, 0, 0.0702 |
| Legs (×2) | 4.16 | 0.0182, 0.1022, 0.0871, 0, 0, 0.0163 |
| Total dummy mass | 113.28 | |