Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity
Radio frequency (RF) cavities hold a crucial role in Electron Linear Accelerators, serving to provide precisely controlled accelerating fields. However, the susceptibility of these cavities to microphonic interference necessitates the development of effective controllers to mitigate vibration due to...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-01-01
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| Series: | Vibration |
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| Online Access: | https://www.mdpi.com/2571-631X/7/1/7 |
| _version_ | 1827304828552871936 |
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| author | Mahsa Keikha Jalal Taheri Kahnamouei Mehrdad Moallem |
| author_facet | Mahsa Keikha Jalal Taheri Kahnamouei Mehrdad Moallem |
| author_sort | Mahsa Keikha |
| collection | DOAJ |
| description | Radio frequency (RF) cavities hold a crucial role in Electron Linear Accelerators, serving to provide precisely controlled accelerating fields. However, the susceptibility of these cavities to microphonic interference necessitates the development of effective controllers to mitigate vibration due to interference and disturbances. This paper undertakes an investigation into the modeling of RF cavities, treating them as cylindrical beams. To this end, a pseudo-rigid body model is employed to represent the translational vibration of the beam under various boundary conditions. The model is systematically analyzed using ANSYS software (from Ansys, Inc., Canonsburg, PA, USA, 2022). The study further delves into the controllability and observability of the proposed model, laying the foundation for the subsequent design of an observer-based controller geared towards suppressing longitudinal vibrations. The paper presents the design considerations and methodology for the controller. The performance of the proposed controller is evaluated via comprehensive simulations, providing valuable insights into its effectiveness in mitigating microphonic interference and enhancing the stability of RF cavities in Electron Linear Accelerators. |
| first_indexed | 2024-04-24T17:45:44Z |
| format | Article |
| id | doaj.art-0ae933cda5bb4a96adba3a7c178929a6 |
| institution | Directory Open Access Journal |
| issn | 2571-631X |
| language | English |
| last_indexed | 2024-04-24T17:45:44Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Vibration |
| spelling | doaj.art-0ae933cda5bb4a96adba3a7c178929a62024-03-27T14:07:28ZengMDPI AGVibration2571-631X2024-01-017112914510.3390/vibration7010007Modelling and Control of Longitudinal Vibrations in a Radio Frequency CavityMahsa Keikha0Jalal Taheri Kahnamouei1Mehrdad Moallem2School of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC V3T 0A3, CanadaSchool of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC V3T 0A3, CanadaSchool of Mechatronic Systems Engineering, Simon Fraser University, Surrey, BC V3T 0A3, CanadaRadio frequency (RF) cavities hold a crucial role in Electron Linear Accelerators, serving to provide precisely controlled accelerating fields. However, the susceptibility of these cavities to microphonic interference necessitates the development of effective controllers to mitigate vibration due to interference and disturbances. This paper undertakes an investigation into the modeling of RF cavities, treating them as cylindrical beams. To this end, a pseudo-rigid body model is employed to represent the translational vibration of the beam under various boundary conditions. The model is systematically analyzed using ANSYS software (from Ansys, Inc., Canonsburg, PA, USA, 2022). The study further delves into the controllability and observability of the proposed model, laying the foundation for the subsequent design of an observer-based controller geared towards suppressing longitudinal vibrations. The paper presents the design considerations and methodology for the controller. The performance of the proposed controller is evaluated via comprehensive simulations, providing valuable insights into its effectiveness in mitigating microphonic interference and enhancing the stability of RF cavities in Electron Linear Accelerators.https://www.mdpi.com/2571-631X/7/1/7flexural dynamicradio frequencycavitymodelingobserver-based control designLyapunov-based controller |
| spellingShingle | Mahsa Keikha Jalal Taheri Kahnamouei Mehrdad Moallem Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity Vibration flexural dynamic radio frequency cavity modeling observer-based control design Lyapunov-based controller |
| title | Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity |
| title_full | Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity |
| title_fullStr | Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity |
| title_full_unstemmed | Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity |
| title_short | Modelling and Control of Longitudinal Vibrations in a Radio Frequency Cavity |
| title_sort | modelling and control of longitudinal vibrations in a radio frequency cavity |
| topic | flexural dynamic radio frequency cavity modeling observer-based control design Lyapunov-based controller |
| url | https://www.mdpi.com/2571-631X/7/1/7 |
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