Actran_进气歧管噪声与排气系统噪声

Edinburgh

Study of the Noise radiated by an Intake Manifold
Hiroyuki Abe – MAZDA
Work presented at the Actran 2011 User’s Meeting in Japan

Introduction
Mazda has developed a new engine in order to reduce the fuel consumption as well as the weight (among
others)
To achieve this, Mazda decided to use a thin resin intake manifold

Consequence: many modes are present because of the low rigidity of the intake manifold and therefore some significant noise problem occur

Mazda had to consider many structural modifications in order to fix this problem