Switch semi-active control of the floating raft vibration isolation system

Weng, Zeyu (author), Liu, Shengli (author), Xu, Teqi (author), Wu, Xiaoyu (author), Wang, Zhe (author), Tang, Jie (author)

Switch semi-active control is introduced to improve the performance of the floating raft vibration isolation system on isolating vibration in the vicinity of the resonance frequency. A switch-controllable linear damper based on the electromagnetic damping principle is developed, whose characteristic parameters are obtained by experiment. The dynamic model of a semi-active control floating raft vibration isolation system is established, and two switch control algorithms are proposed. Algorithm 1 aims to minimize the kinetic energy of the raft, and Algorithm 2 balances minimizing the kinetic energy of the raft and minimizing the input energy of the system. The simulations of the original system, the system with the controllable damper, and the system with the damper controlled by the algorithms are carried out. The vibration acceleration responses of the foundation of the systems are used to evaluate the vibration isolation effect. The results show that the switching semi-active control using Algorithms 1 and 2 can significantly suppress the vibration of the system near the resonance frequency. Finally, the test platform of the switch’s semi-active controlled floating raft vibration isolation system is built, and the simulation results are verified by the experimental result.

• Language: English
• Keywords: floating rafts, semi-active control, vibration isolation, switch algorithm
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Publication date: 01.01.2022
• Year: 2022
• Number of pages: Str. 314-324
• Numbering: Vol. 68, no. 5
• PID: 20.500.12556/RUL-137280
• UDC: 531/533
• ISSN on article: 0039-2480
• DOI: 10.5545/sv-jme.2021.7271
• COBISS.SI-ID: 110959875
• Publication date in RUL: 09.06.2022

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Zveza strojnih inženirjev in tehnikov Slovenije [etc.], = Association of Mechanical Engineers and Technicians of Slovenia [etc.
• ISSN: 0039-2480
• COBISS.SI-ID: 762116

Licences

• License: CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
• Link: http://creativecommons.org/licenses/by-nc/4.0/
• Description: A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.
• Licensing start date: 03.08.2022

Secondary language

• Language: Slovenian
• Title: Polaktivna vklopna regulacija vibroizolacijskega sistema
• Keywords: splavi, polaktivna regulacija, vibroizolacija, vklopni algoritem