| 摘要 |
<p>An acoustic damper fixed to a vibration source along an outer surface of the vibration source which generates air vibration (V), the acoustic damper comprising a housing (2) for surrounding a part of the outer surface, a compartment wall (3) for partially partitioning a space of the housing (2), a partition wall (4) for defining at least two passages (R) with the housing (2) and the compartment wall (3), the partition wall (4) being provided along the outer surface in the housing (2), wherein each of the at least two passages (R) communicates with the vibration source and takes in the air vibration (V), at least two first partition members (5b) provided for the at least two passages (R), each of which closes the downstream side of the passage with respect to the propagation of the air vibration to serve as resistance against the air vibration, and at least two second partition members (5c) for separating the at least two passages (R) and for respectively folding the at least two passages (R) via the compartment wall (3) along the outer surface. Directions from an inlet (4a) to the second partition member (5c) are opposed to each other for the at least two adjacent passages (R), the inlet (4a) being communicating to the vibration source.</p> |
