(Peer-Reviewed) Sound Insulation Performance of Pyramidal Truss Core Cylindrical Sandwich Structure
Yu-Zhou Wang 王雨舟, Li Ma 马力
Center for Composite Materials, Harbin Institute of Technology, Harbin, 150080, China
中国 哈尔滨 哈尔滨工业大学复合材料与结构研究所
Abstract
Recently, cylindrical structures have been exploited in various fields due to their excellent mechanical properties. With the increase in the application of cylindrical shell structures, researchers are paying more and more attention to its acoustic performance and sound insulation applications. By inserting the pyramidal truss lattice into the cylindrical shell structure, a cylindrical sandwich structure is obtained and the sound insulation performance of the structure is investigated.
The space-harmonic expansion method and the principle of virtual work are employed to establish a theoretical model for the acoustic analysis of cylindrical sandwich structures. The vibro-acoustic coupling is taken into account by imposing the velocity continuity condition at the fluid–solid interface. The sound transmission loss (STL) performance of the structure is examined by establishing both theoretical and finite element models. Subsequently, the influence of various parameters on sound transmission loss is researched and analyzed.
Data-driven polarimetric imaging: a review
Kui Yang, Fei Liu, Shiyang Liang, Meng Xiang, Pingli Han, Jinpeng Liu, Xue Dong, Yi Wei, Bingjian Wang, Koichi Shimizu, Xiaopeng Shao
Opto-Electronic Science
2024-02-24
Inverse design for material anisotropy and its application for a compact X-cut TFLN on-chip wavelength demultiplexer
Jiangbo Lyu, Tao Zhu, Yan Zhou, Zhenmin Chen, Yazhi Pi, Zhengtong Liu, Xiaochuan Xu, Ke Xu, Xu Ma, Lei Wang, Zizheng Cao, Shaohua Yu
Opto-Electronic Science
2024-01-09
Flat soliton microcomb source
Xinyu Wang, Xuke Qiu, Mulong Liu, Feng Liu, Mengmeng Li, Linpei Xue, Bohan Chen, Mingran Zhang, Peng Xie
Opto-Electronic Science
2023-12-29