The Control of Vibrational Power Transmission in One-Dimensional Structures

When attempting to control the vibration transmitted from machinery installations, perhaps with a view to reducing the unwanted radiation of noise at a point remote from the source, it is essential that all possible transmission paths are considered.With the majority of installations, one-dimensional structures Such as beams, pipework vibrating at low frequencies and other mechanical linkages, form some of the main vibration paths which bypass isolator systems.It is of interest to consider different types of discontinuity that may be incorporated into these types of structure as they signi cantly affect the vibration transmission properties of the complete system.One such discontinuity that may be employed as a vibration control device is the vibration neutralizer.In this work, the vibration attenuation performance of these types of device tted to one-dimensional structures is considered using the concept of vibrational power transmission.