Hybrid acoustic materials through assembly of tubes and microchannels: design and experimental investigation

• Published in: Rapid prototyping journal Vol. 29; no. 6; pp. 1230 - 1239
• Main Authors: Costa-Baptista, Josué, Fotsing, Edith Roland, Mardjono, Jacky, Therriault, Daniel, Ross, Annie
• Format: Journal Article
• Language: English
• Published: Bradford Emerald Publishing Limited 02.06.2023; Emerald Group Publishing Limited
• Subjects: Absorbers (materials); Absorptivity; Acoustic absorption; Acoustics; Broadband; Design; Frequency ranges; Mathematical analysis; Microchannels; Noise control; Optimization; Pore size; Porous materials; Rapid prototyping; Sound; Sound transmission; Thickness; Tubes; Design; additive manufacturing; Sound-absorbing materials; Low frequency; Subwavelength absorption; Deep-subwavelength absorption

Purpose The purpose of this paper is the design and experimental investigation of compact hybrid sound-absorbing materials presenting low-frequency and broadband sound absorption. Design/methodology/approach The hybrid materials combine microchannels and helical tubes. Microchannels provide broadban...