Noise control: Principles and practices - Part 13

This is the thirteenth of fifteen parts that present illustrations of noise control principles and practices. The illustrations in this article appeared first in a book published in Sweden by the Swedish Work Environment Fund. It is illustrated that machines can be vibration isolated with flexible elements, that improperly selected isolators can increase vibration, that heavy machines producing low frequency vibrations may require a rigid floor and that a separate foundation provides the best solid-borne sound barrier.