哈尔滨工程大学学报2025，Vol.46Issue(5)：920-927,8.DOI:10.11990/jheu.202401010
负电容压电分流-声学黑洞梁的带隙特性研究
Research on the band gap characteristics of negative capacitance piezoelectric shunt-acoustic black hole beams
摘要
Abstract
To explore the band gap characteristics of a negative capacitance piezoelectric shunt damping acoustic black hole beam in vibration transmission,an electromechanical coupling model of the piezoelectric material is es-tablished based on the long-wave approximation hypothesis.The transmission characteristics of the acoustic black hole-piezoelectric shunt damping beam under forced vibration are calculated using a multi-physics coupling simula-tion method.The accuracy of the method is verified by comparing it with results from existing literature.The study reveals the influence of shunt circuit type,capacitance size,and the acoustic black hole on the band gap character-istics and vibration suppression performance of the structure.The findings demonstrate that combining a negative capacitance shunt circuit with an acoustic black hole effectively broadens the band gap range of the beam structure and enhances its vibration attenuation performance.关键词
声学黑洞/压电分流阻尼/负电容/强迫振动/带隙特性/抑振/长波近似假设/梁结构Key words
acoustic black hole/piezoelectric shunt damping/negative capacitance/forced vibration/band gap characteristics/vibration suppression/long-wave approximation hypothesis/beam structure分类
数理科学引用本文复制引用
王天浩,叶天贵,陈赞栩,陈玉坤,步春阳,靳国永..负电容压电分流-声学黑洞梁的带隙特性研究[J].哈尔滨工程大学学报,2025,46(5):920-927,8.基金项目
国家自然科学基金项目(52271309,52225109,52241101). （52271309,52225109,52241101）
