The goal of this paper is to present a novel type of advanced acoustic material-micro
grooved element (MGE)-which is designed for noise control in a wide range of applications …

As a suitable replacement for prevalent but environmentally hazardous fibrous materials
used in exhaust system silencers, innovative micro-perforated (MP) elements have been …

Recently fibreless solutions have become a trend in the design of sustainable and
environmentally friendly duct silencers. Hereby microperforated panels have been proven to …

Recently fibreless solutions have become a trend in the design of sustainable and
environmentally friendly duct silencers. In this respect microperforated panels have been …

Since the introduction of microperforated (MP) sound absorption elements more than 40
years ago many variations of noise control devices from room acoustics to induct …

Noise pollution is one of the most important environmental issues today. Power tools and
small equipment with internal combustion engines (ICE) like leaf blowers, brush cutters …

A rapid publicity growth has led to an extensive applica-tion of micro-perforated (MP)
acoustic elements for broadband sound absorption in the exhaust systems of the internal …

Green soundproofing acoustic porous materials are a valid alternative to traditional synthetic
materials. Green eco-friendly acoustic panels and other soundproofing solutions are made …

Micro-grooved elements (MGEs) represent a novel technology developed for noise control
in automotive, aerospace and room acoustics. The key concept of the MGEs is based on the …

In this paper, a new type of fibreless, bulk, sound absorber is studied. The acoustic material
is an additive manufactured lattice structure constituted by a mesh of pins generated by …