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Integrated sensor-actuator design and experimental study in active vibration and noise reduction for cavity structure
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Minghao CHEN, Qibo MAO, Jinwu WU, Lihua PENG, QI LI
Journal of Vibration Engineering | 2025, 38(10) : 2304 - 2311
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Journal of Vibration Engineering | 2025, 38(10): 2304-2311
Integrated sensor-actuator design and experimental study in active vibration and noise reduction for cavity structure
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Minghao CHEN, Qibo MAO, Jinwu WU, Lihua PENG, QI LI
Affiliations
  • School of Aircraft Engineering, Nanchang HangKong University, Nanchang 330063, China
doi: 10.16385/j.cnki.issn.1004-4523.202310054
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The control of vibration and acoustic radiation in rectangular confined spaces has been an important challenge in engineering. In this study, a solution is proposed with a sensor-actuator control system consisting of a loudspeaker, a base and a piezoelectric ceramic sensor. This design has the advantages of lightweight, low natural frequency and integrated sensing/actuator design. However, the strain-integra control scheme used for the integrated sensor-actuator suffers from stability problems. To overcome these problems, this paper utilizes a control strategy with a band-pass filter. The study tests the mechanical properties of this home-made inertial actuator, and determines the structural modes that have the greatest impact on the acoustic performance. A band-pass filter control strategy is used to selectively modulate these structural modes. The experimental results show that the homemade inertial actuator can effectively generate inertial forces, while the band-pass filter can effectively reduce the structural vibration, especially in controlling the first two acoustic cavity modes in the low-frequency band, which exhibits a significant effect. This approach is more flexible in controlling low-frequency noise in confined spaces and provides an efficient solution to the problem of structural noise in engineering environments.

noise reduction  /  structural vibration control  /  band-pass filter strategy  /  selective control
Minghao CHEN, Qibo MAO, Jinwu WU, Lihua PENG, QI LI. Integrated sensor-actuator design and experimental study in active vibration and noise reduction for cavity structure[J]. Journal of Vibration Engineering, 2025 , 38 (10) : 2304 -2311 . DOI: 10.16385/j.cnki.issn.1004-4523.202310054
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Year 2025 volume 38 Issue 10
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doi: 10.16385/j.cnki.issn.1004-4523.202310054
  • Receive Date：2023-10-24
  • Online Date：2026-02-04
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  • Received：2023-10-24
  • Revised：2023-12-25
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    School of Aircraft Engineering, Nanchang HangKong University, Nanchang 330063, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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