| Simulation Analysis and Optimization Design of Sealing System of Aircraft Cabin Door |
| Received:February 28, 2022 Revised:February 28, 2022 |
| DOI：10.12136/j.issn.1000-890X.2023.08.0563 |
| Key Words: sealing system of cabin door；sealing strip；section fillet radius；reinforcement fabric；silicone rubber material；sealing performance |
| Author Name | Affiliation | E-mail | | YAO Wenxin | Shenyang Aerospace University | 1415510014@qq. com | | XU Mingyao | Shenyang Aerospace University | xumingyao@sau.edu.cn | | YUAN Yongping | Shenyang Aerospace University | |
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| Abstract: |
| The sealing system of aircraft cabin door（referred to as cabin door） was simulated and analyzed，and the optimization design of the structure and material of the sealing strip was carried out through orthogonal experiments.The results showed that the section fillet radius of the sealing strip had a significant impact on the stress of the sealing system of cabin door.When the section fillet radius was 3.5 mm，the maximum contact stress of the sealing system was the highest，and the compression stress was the lowest.The internal reinforcement fabric of the sealing strip could simultaneously increase the compression stress and maximum contact stress of the sealing system of cabin door，but had little effect on the compression stress.When the sealing strip was made of 35U silicone rubber material，the compression stress and maximum contact stress of the sealing system of cabin door were the smallest，and when the sealing strip was made of 75U silicone rubber material，the compression stress and maximum contact stress were the largest.Moreover，the compression stress and maximum contact stress increased with the increase of Shore A hardness of the silicone rubber material.When the section fillet radius of the sealing strip was 3.5 mm，55U silicone rubber material with a shore A hardness of 50 degree was used，and a layer of reinforcement fabric was applied，the sealing performance of the sealing system of cabin door was the best. |
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