Arrangement for noise reduction of large electric machine, has vibration damper that is formed as adapted spring-mass system with closed vibration damper spring

摘要

The arrangement has vibration dampers (6) that are distributed in accordance with vibration characteristics of a housing at defined position, and are firmly bonded at sound-emitting surface of an electric machine (1). The vibration damper is formed as an adapted spring-mass system with closed vibration damper spring (7). An additive mass (11) is arranged at the vibration damper using an adjustment screw (12).