| 摘要 |
<p>A method of reducing vibration in a rotary system (100), comprising: providing a rotational element (200, 201) comprising a chamber (210, 211) comprising a circumferential balancing area (220, 221), having a cross section and being filled with an amount of a balancing substance (230, 231), said rotational element (200, 201) and said chamber (210, 211) having a rotational axis (240), balancing said rotary system (100), characterized in that said cross section is a changeable cross section, and said cross section is adapted in response to said balancing; a corresponding apparatus and system.</p> |
