Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations

Li, Xiaohan; Shao, Jian; Wu, Peng; Wang, Tonglei; Yang, Jinggang; Wu, Yipeng

doi:10.3390/mi16101178

This is an early access version, the complete PDF, HTML, and XML versions will be available soon.

Open AccessArticle

Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations

by

Xiaohan Li

^1,*,

Jian Shao

¹,

Peng Wu

¹,

Tonglei Wang

¹,

Jinggang Yang

¹ and

Yipeng Wu

^2,*

¹

Research Institute of State Grid Jiangsu Electric Power Co., Ltd., Nanjing 211103, China

²

State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

^*

Authors to whom correspondence should be addressed.

Micromachines 2025, 16(10), 1178; https://doi.org/10.3390/mi16101178

Submission received: 17 September 2025 / Revised: 12 October 2025 / Accepted: 15 October 2025 / Published: 17 October 2025

(This article belongs to the Collection Piezoelectric Transducers: Materials, Devices and Applications)

Download Review Reports Versions Notes

Abstract

This paper addresses the suppression of multi-frequency line spectrum vibrations during the operation of indoor substations through the development of an active vibration isolation scheme based on a piezoelectric stack inertial actuator. Based on the finite element modal analysis, the excitation frequencies that strongly influence structural response were identified, and the excitation points and sensor layout strategies were determined under a collocated control configuration. Subsequently, the actuator’s structural design and system integration were carried out. Experimental results demonstrate vibration amplitude reductions of 18.75 dB at 100 Hz, 46.02 dB at 200 Hz, and 32.04 dB at 300 Hz, respectively, validating the effectiveness of the proposed method in controlling line spectrum vibrations at multiple frequencies. The study shows that the coordinated optimization of modal matching and the dynamic response capability of inertial actuators provides experimental evidence and technical guidelines for active vibration isolation in large plate-shell structures.

Keywords: inertial actuator; vibration suppression; piezoelectric actuator; substation equipment; indoor substation

Share and Cite

MDPI and ACS Style

Li, X.; Shao, J.; Wu, P.; Wang, T.; Yang, J.; Wu, Y. Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations. Micromachines 2025, 16, 1178. https://doi.org/10.3390/mi16101178

AMA Style

Li X, Shao J, Wu P, Wang T, Yang J, Wu Y. Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations. Micromachines. 2025; 16(10):1178. https://doi.org/10.3390/mi16101178

Chicago/Turabian Style

Li, Xiaohan, Jian Shao, Peng Wu, Tonglei Wang, Jinggang Yang, and Yipeng Wu. 2025. "Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations" Micromachines 16, no. 10: 1178. https://doi.org/10.3390/mi16101178

APA Style

Li, X., Shao, J., Wu, P., Wang, T., Yang, J., & Wu, Y. (2025). Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations. Micromachines, 16(10), 1178. https://doi.org/10.3390/mi16101178

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Menu

Multi-Frequency Vibration Suppression Based on an Inertial Piezoelectric Actuator Applied in Indoor Substations

Abstract

Share and Cite

Article Metrics

Article Access Statistics

Further Information

Guidelines

MDPI Initiatives

Follow MDPI