360 Reduction of Structure Borne Noise on a Laser Printer Unit using SEA

Abstract

This research aims at the development of a method for optimal structural countermeasure concerning structure-borne noise radiated from machinery and structures. A new process for deriving countermeasures using Statistical Energy Analysis is proposed in this paper. This process is composed of four steps, 1) construction of SEA model, 2) identification of power input during operation and of power transfer paths, 3) extraction of loss factors for countermeasure and 4) structural design for realization of loss factor changes. The process is applied to countermeasure for structure-borne noise radiated from a laser beam printer. As a result, it is shown that the process works well to reduce the sound pressure levels.