| Author Name | Affiliation | Postcode | | Xiuxu Zhao* | 1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China
2. Hubei Key Laboratory of Digital Manufacturing, Wuhan University of Technology, Wuhan 430070, China | 430070 | | Yilong Lan | 1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China
2. Hubei Key Laboratory of Digital Manufacturing, Wuhan University of Technology, Wuhan 430070, China | 430070 | | Jiarun Cai | 1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China
2. Hubei Key Laboratory of Digital Manufacturing, Wuhan University of Technology, Wuhan 430070, China | 430070 | | Yuhao Yan | 1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China
2. Hubei Key Laboratory of Digital Manufacturing, Wuhan University of Technology, Wuhan 430070, China | 430070 | | Haile Tang | 1. School of Mechanical and Electronic Engineering, Wuhan University of Technology, Wuhan 430070, China
2. Hubei Key Laboratory of Digital Manufacturing, Wuhan University of Technology, Wuhan 430070, China | 430070 |
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| Abstract: |
| In order to meet the demand for active control of dynamic sealing contact state according to the situation in important application scenarios such as aerospace, submarine, and nuclear industry, and to achieve the goal of increasing sealing contact stress while reducing its friction and wear, this study focuses on the active control of sealing contact state of hydraulic cylinder piston rod based on polyurethane MRE, based on the adjustable and controllable mechanical properties of magnetorheological elastomer (MRE) under magnetic field. We propose a preparation scheme for prestructured polyurethane MRE sealing rings, design a magnetic control device to adjust the performance of MRE sealing rings, and study the control effect on sealing ring contact performance through control experiments. The experimental results indicate that the polyurethane MRE sealing ring is sensitive to magnetic fields, and its contact stress and friction can be significantly adjusted. This study provides a basis for further realizing intelligent adjustment and control of hydraulic reciprocating seals in practical work processes. |
| Key words: polyurethane magnetorheological elastomers sealing contact stress friction force magnetic field control |
| DOI：10.11916/j.issn.1005-9113.2025108 |
| Clc Number:TB42；TB381；TH136 |
| Fund: |
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| Descriptions in Chinese: |
| In order to meet the demand for active control of dynamic sealing contact state according to the situation in important application scenarios such as aerospace, submarine, and nuclear industry, and to achieve the goal of increasing sealing contact stress while reducing its friction and wear, this study focuses on the active control of sealing contact state of hydraulic cylinder piston rod based on polyurethane MRE, based on the adjustable and controllable mechanical properties of magnetorheological elastomer (MRE) under magnetic field. We propose a preparation scheme for prestructured polyurethane MRE sealing rings, design a magnetic control device to adjust the performance of MRE sealing rings, and study the control effect on sealing ring contact performance through control experiments. The experimental results indicate that the polyurethane MRE sealing ring is sensitive to magnetic fields, and its contact stress and friction can be significantly adjusted. This study provides a basis for further realizing intelligent adjustment and control of hydraulic reciprocating seals in practical work processes. |
