山东理工大学交通与车辆工程学院
纸质出版:2023
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张鑫越, 刘灿昌, 田晓, 等. 基于超谐波共振频率敏感的微质量检测研究[J]. 传感器与微系统, 2023,(8):50-53.
张鑫越, 刘灿昌, 田晓, 等. 基于超谐波共振频率敏感的微质量检测研究[J]. 传感器与微系统, 2023,(8):50-53. DOI: 10.13873/J.1000-9787(2023)08-0050-04.
提出了一种基于耦合梁超谐波共振的微质量检测信号倍频放大方法,以提高质量检测的灵敏度。考虑超谐波共振的倍频效应,建立了高、低频梁固有频率为1︰3的耦合悬臂梁动力学模型。采用多尺度法得到高频梁的超谐波共振幅频响应方程和低频梁的主共振幅频响应方程。设计了耦合梁质量检测试验,利用数据采集仪获取耦合悬臂梁中高频梁的振动信号。试验结果表明:低频梁自由端附着质量的变化引起固有频率漂移,经过高频梁超谐波共振产生3倍频率放大,提高了质量检测的灵敏度。
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