A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation
Landing gear is a key load-bearing structure of aircraft during ground operation, and the landing capacity of landing gear is determined by the performance of buffer. To solve the problem of buffer failure caused by insufficient static sealing of a rubber ring at groove side, a new structure of a bu...
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| Format: | Article |
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MDPI AG
2021-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/11/5/2036 |
| _version_ | 1797395288428642304 |
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| author | Lin Zhang Xiaohui Wei |
| author_facet | Lin Zhang Xiaohui Wei |
| author_sort | Lin Zhang |
| collection | DOAJ |
| description | Landing gear is a key load-bearing structure of aircraft during ground operation, and the landing capacity of landing gear is determined by the performance of buffer. To solve the problem of buffer failure caused by insufficient static sealing of a rubber ring at groove side, a new structure of a butterfly rubber ring is proposed by analyzing the factors affecting sealing performance of the rubber ring. First, the constitutive equation of rubber material is derived based on the theory of hyper-elasticity, and the material parameters are obtained by fitting the experimental data. Then, by analyzing the simulation method of installation mode and installation stroke, the simulation method suitable for calculating the sealing performance of the rubber ring is established. The linear fitting formulas with Pearson coefficient greater than 0.92 are used to discuss the influence of pre-compression rate and hydraulic pressure on the sealing performance of the rubber ring. Compared with O-ring, the contact pressure of butterfly-ring is increased by 30% in assembly state and 14% in working state. The results show that the butterfly rubber ring has excellent static sealing performance. It is concluded that improving the configuration of the sealing ring can solve the insufficient unilateral sealing of the hydraulic buffer. |
| first_indexed | 2024-03-09T00:32:18Z |
| format | Article |
| id | doaj.art-37329d61bfb14b1f8fd73f3950ced0ef |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T00:32:18Z |
| publishDate | 2021-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-37329d61bfb14b1f8fd73f3950ced0ef2023-12-11T18:23:00ZengMDPI AGApplied Sciences2076-34172021-02-01115203610.3390/app11052036A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical SimulationLin Zhang0Xiaohui Wei1Key Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaKey Laboratory of Fundamental Science for National Defense-Advanced Design Technology of Flight Vehicle, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaLanding gear is a key load-bearing structure of aircraft during ground operation, and the landing capacity of landing gear is determined by the performance of buffer. To solve the problem of buffer failure caused by insufficient static sealing of a rubber ring at groove side, a new structure of a butterfly rubber ring is proposed by analyzing the factors affecting sealing performance of the rubber ring. First, the constitutive equation of rubber material is derived based on the theory of hyper-elasticity, and the material parameters are obtained by fitting the experimental data. Then, by analyzing the simulation method of installation mode and installation stroke, the simulation method suitable for calculating the sealing performance of the rubber ring is established. The linear fitting formulas with Pearson coefficient greater than 0.92 are used to discuss the influence of pre-compression rate and hydraulic pressure on the sealing performance of the rubber ring. Compared with O-ring, the contact pressure of butterfly-ring is increased by 30% in assembly state and 14% in working state. The results show that the butterfly rubber ring has excellent static sealing performance. It is concluded that improving the configuration of the sealing ring can solve the insufficient unilateral sealing of the hydraulic buffer.https://www.mdpi.com/2076-3417/11/5/2036rubber ringcontact pressurehydraulic bufferinstallation modenumerical simulation |
| spellingShingle | Lin Zhang Xiaohui Wei A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation Applied Sciences rubber ring contact pressure hydraulic buffer installation mode numerical simulation |
| title | A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation |
| title_full | A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation |
| title_fullStr | A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation |
| title_full_unstemmed | A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation |
| title_short | A Novel Structure of Rubber Ring for Hydraulic Buffer Seal Based on Numerical Simulation |
| title_sort | novel structure of rubber ring for hydraulic buffer seal based on numerical simulation |
| topic | rubber ring contact pressure hydraulic buffer installation mode numerical simulation |
| url | https://www.mdpi.com/2076-3417/11/5/2036 |
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