Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform
Abstract Space payloads in orbit are vulnerable to small vibrations from satellite platforms, which can degrade their performance. Traditional methods typically involve installing a passive vibration isolation system between the platform and the payload. However, such systems are usually effective o...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-84980-2 |
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| author | Zhiyi Fang Zhiliang Yu Qingping Huang Yanfen Wang Xingsheng Gu |
| author_facet | Zhiyi Fang Zhiliang Yu Qingping Huang Yanfen Wang Xingsheng Gu |
| author_sort | Zhiyi Fang |
| collection | DOAJ |
| description | Abstract Space payloads in orbit are vulnerable to small vibrations from satellite platforms, which can degrade their performance. Traditional methods typically involve installing a passive vibration isolation system between the platform and the payload. However, such systems are usually effective only for high-frequency, large-amplitude vibrations and perform poorly in isolating low-frequency vibrations and resonances below 10 Hz. To address this limitation, this paper proposes an active vibration isolation system using a 6-degrees-of-freedom Stewart platform driven by piezoelectric actuators. First, the characteristics of the Stewart platform are analyzed and modeled, with the deformation displacement of each leg calculated through decoupling, allowing for high-precision servo control. Next, given the inherent hysteretic nonlinearity of piezoelectric ceramics, which significantly affects positioning accuracy, the hysteresis mechanism of the actuators is analyzed, and a phenomenological mathematical model based on Bouc–Wen operators is established. A Modified particle swarm optimization (MPSO) method is proposed for identifying the model’s nonlinear parameters, significantly enhancing the optimization efficiency. Finally, feedforward inverse compensation and feedback linearization methods are introduced. Experimental results verify that the designed active–passive vibration isolation system greatly improves both the positioning accuracy of the piezoelectric actuators and the active vibration isolation performance of the platform. |
| format | Article |
| id | doaj-art-d82517faa67f487297bcc24575a3a09a |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-d82517faa67f487297bcc24575a3a09a2025-01-12T12:24:20ZengNature PortfolioScientific Reports2045-23222025-01-0115111610.1038/s41598-024-84980-2Research on design and control method of active vibration isolation system based on piezoelectric Stewart platformZhiyi Fang0Zhiliang Yu1Qingping Huang2Yanfen Wang3Xingsheng Gu4East China University of Science and TechnologyAerospace System Engineering ShanghaiAerospace System Engineering ShanghaiAerospace System Engineering ShanghaiEast China University of Science and TechnologyAbstract Space payloads in orbit are vulnerable to small vibrations from satellite platforms, which can degrade their performance. Traditional methods typically involve installing a passive vibration isolation system between the platform and the payload. However, such systems are usually effective only for high-frequency, large-amplitude vibrations and perform poorly in isolating low-frequency vibrations and resonances below 10 Hz. To address this limitation, this paper proposes an active vibration isolation system using a 6-degrees-of-freedom Stewart platform driven by piezoelectric actuators. First, the characteristics of the Stewart platform are analyzed and modeled, with the deformation displacement of each leg calculated through decoupling, allowing for high-precision servo control. Next, given the inherent hysteretic nonlinearity of piezoelectric ceramics, which significantly affects positioning accuracy, the hysteresis mechanism of the actuators is analyzed, and a phenomenological mathematical model based on Bouc–Wen operators is established. A Modified particle swarm optimization (MPSO) method is proposed for identifying the model’s nonlinear parameters, significantly enhancing the optimization efficiency. Finally, feedforward inverse compensation and feedback linearization methods are introduced. Experimental results verify that the designed active–passive vibration isolation system greatly improves both the positioning accuracy of the piezoelectric actuators and the active vibration isolation performance of the platform.https://doi.org/10.1038/s41598-024-84980-2Active vibration isolationPiezoelectric actuatorHysteresisStewart platformLinearization |
| spellingShingle | Zhiyi Fang Zhiliang Yu Qingping Huang Yanfen Wang Xingsheng Gu Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform Scientific Reports Active vibration isolation Piezoelectric actuator Hysteresis Stewart platform Linearization |
| title | Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform |
| title_full | Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform |
| title_fullStr | Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform |
| title_full_unstemmed | Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform |
| title_short | Research on design and control method of active vibration isolation system based on piezoelectric Stewart platform |
| title_sort | research on design and control method of active vibration isolation system based on piezoelectric stewart platform |
| topic | Active vibration isolation Piezoelectric actuator Hysteresis Stewart platform Linearization |
| url | https://doi.org/10.1038/s41598-024-84980-2 |
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