| 摘要 |
<p>The scheme for balancing out gyroscopic moment effects in aircraft, esp. those of pre-rotated undercarriage wheels, consists of fitting each wheel (3) with a co-axial cylindrical counterweight (42), with gear teeth (40) around its periphery. Teeth on an axially movable bar (6) engage with those on the weight to cause it to rotate; via an idler wheel (41) this also produces the required rotation of the wheel. The higher speed of rotation compensates for smaller mass of the weight. Additionally or alternatively to the scheme with the rotating weights, an automatic bias can be applied to the lateral control system. This is based on air-and-wheel rotation speeds. A computer is used to coordinate the system.</p> |
