| 摘要 |
<p>An engine-mountable emissions cleaning module has a mass damper assembly 3. The mass damper assembly 3 comprises a bracket 17 adapted to secure the mass damper assembly to the emissions cleaning module, a damping body 19, and a retaining means 21 for coupling the damping body to the bracket. The retaining means is configured to allow the damping body to oscillate with six degrees of freedom. The damping body and the retaining means are constructed and arranged to provide the damping body with a resonant frequency substantially the same as a resonant frequency of the emissions cleaning module, but preferably oscillating out of phase therewith. The damping body is adapted, with the retaining means, to dampen an oscillatory motion of the emissions cleaning module. The retaining means may comprise an elastomeric material, such as rubber. The damping body may comprise one or more mass elements, and be variable by adding or removing one or more mass elements.</p> |
