Motor vehicle e.g. passenger car, body part, has detuning mass is fastened to vibration area that vibrates with same frequency as outer shell, such that body part releases sound waves with acoustic pressure in passenger compartment

摘要

The body part has an outer shell (3) fastened to an inner shall (7) by a fastening area (5). A vibration area (9) of the outer shell is formed adjacent to a fastening area, where the vibration area vibrates relative to the fastening area when the body part vibrates. A detuning mass (15) is fastened to the vibration area that vibrates with the same frequency as the outer shell in a predetermined excitation area, such that the body part releases sound waves with an acoustic pressure in a passenger compartment, where the acoustic pressure is lower than another acoustic pressure. An independent claim is also included for a motor vehicle comprising a body part.