| 摘要 |
<p>A vibration-compensating apparatus for counteracting harmonic vibrations from an excitation source comprises a first compensator unit with two rotary bodies (22, 23) rotating in opposite directions by the same rpm so as to generate a harmonically varying first force component in one direction. The apparatus comprises furthermore a second compensator unit with two rotary bodies (24, 25) rotating in opposite directions about axes parallel to the axes of the first compensator unit so as to generate a second harmonically varying force component in a direction parallel to the first harmonically varying force component. The rotary bodies of the first compensator unit and the rotary bodies (24, 25) of the second compensator unit are driven by separate infinitely variable driving motors (29, 30). A control and synchronizing device controls the driving motors (29, 30) of the compensator units so that the rotary bodies rotate at an rpm which is a multiple of the frequency of the excitation source.</p> |
