Solar Array Drive Assembly (SADA)
Product introduction
This is a wholly industrialized product with both high cost-effectiveness and high reliability. It is based on mechatronic design, featuring light weight, high integration, non-conductive slip ring design and a miniature size. The usage of brushless DC motor can largely reduce power consumption while realizing a dynamical adjustment of the output torque. The first generation of this series has been verified in orbit in 2021.
Performance index
| Rotation range: | A-axis no less than ± 170 °; B-axis no less than ± 80 ° |
| Control mode: | The A-axis and B-axis work independently |
| Speed range: | Track angular velocity : 0.05°/s~0.1°/s;Capture angular velocity : 0.1°/s~0.6°/s |
| Carrying capacity: | Axial force : ≥500N; Bending torque:≥20Nm |
| Driving torque: | ≥2Nm |
| Power outage holding torque: | ≥0.36Nm |
| Operation temperature: | -20-55℃ |
| Angular position accuracy: | better than 1.0 ° |
| Lifespan in orbit: | ≥10years |