Smart materials and structures have attracted a significant amount of attention for their
vibration control potential in engineering applications. Compared to the traditional active …

This definitive guide covers the design and application of absorbers and diffusers in
acoustics. Surface diffusion is a relatively young subject area, and diffuser design …

Microperforated panel (MPP) absorbers have been widely used in noise reduction and are
regarded as a promising alternative to the traditional porous materials. However, the …

The sound damping capabilities of graphene foam (GF)/carbon nanotube (CNT)/poly
(dimethyl siloxane)(PDMS) composites to low-frequency sound waves are studied. To our …

Microperforated panel (MPP) absorbers have been widely used in noise reduction and are
regarded as a promising alternative to the traditional porous materials. However, the …

A membrane absorber usually requires a large back cavity to achieve low-frequency sound
absorption. This paper describes the design of a membrane acoustic metamaterial absorber …

Micro-perforated panel (MPP) absorber has various merits, so it has great potential for
application in the field of noise control. In this paper, the cavity with a variable section …

Porous sound absorptive material (PSAM) and micro-perforated plate (MPP) limited by
space are weak in absorbing low-to mid-frequency noise. In order to improve sound …

This paper investigates the performance of the structural acoustic controlled active micro-
perforated panel absorber (SAC-AMPPA), which can achieve wide-band perfect low …

Microperforated panel (MPP) absorbers have been widely used in noise reduction and are
regarded as a promising alternative to the traditional porous materials. However, the …