Wideband sound absorption of 3D printed multi-layer micro-perforated panels

• Main Authors: Yang, Wenjing, Yuan, Shangqin, Zhou, Kun, Chua, Chee Kai
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2018
• Subjects: 3D Printing; Additive Manufacturing; DRNTU::Engineering::Mechanical engineering::Prototyping
• Online Access: https://hdl.handle.net/10356/88501; http://hdl.handle.net/10220/45851
• Institution: Nanyang Technological University

Micro-perforated panel (MPP) absorbers have been applied widely in noise reduction and sound damping. In order to obtain wideband sound absorption, novel structures of MPPs with various numbers of panel layers and spacing distances between them were designed. The structures were manufactured by s...