| 李健,刘帅帅,吴云章,李宗原.某型直升机机体结构关键件涂层耐久性评估[J].装备环境工程,2023,20(7):49-55. LI Jian,LIU Shuai-shuai,WU Yun-zhang,LI Zong-yuan.Durability Evaluation of Coating for Key Components of Helicopter Fuselage Structure[J].Equipment Environmental Engineering,2023,20(7):49-55. |
| 某型直升机机体结构关键件涂层耐久性评估 |
| Durability Evaluation of Coating for Key Components of Helicopter Fuselage Structure |
| 投稿时间：2022-07-10 修订日期：2022-10-24 |
| DOI：10.7643/issn.1672-9242.2023.07.007 |
| 中文关键词: 直升机 机体结构 涂层 耐久性 腐蚀中图分类号:TG174.4 文献标识码:A 文章编号:1672-9242(2023)07-0049-07 |
| 英文关键词:helicopter fuselage structure coating durability corrosion |
| 基金项目: |
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| Author | Institution |
| LI Jian | Army Aviation Research Institute, Beijing 101121, China;Army Aviation Academy, Beijing 101121, China |
| LIU Shuai-shuai | Army Aviation Academy, Beijing 101121, China |
| WU Yun-zhang | Army Aviation Research Institute, Beijing 101121, China |
| LI Zong-yuan | Army Aviation Research Institute, Beijing 101121, China |
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| 中文摘要: |
| 目的 评估某型直升机机体典型结构关键件涂层在内陆温和地区的耐久性，支撑机体总日历寿命延寿工作。方法 对某型直升机大修周期机体结构关键件涂层进行目视检查、涂层光泽度检查和电化学交流阻抗检测，对比分析检测数据，分析机体结构关键件涂层耐久性的影响因素，判定涂层的耐久性。结果 某型直升机机体结构关键件涂层的耐久性较好。失光率检测中，平均失光率为37.8%，整体失光率较小。电化学阻抗检测中，平均电化学阻抗模值为5.58×107 Ω.cm2，未失效，涂层能够有效保护机体结构关键件免于腐蚀环境破坏。结论 大修周期内，某型直升机机体结构关键件涂层的耐久性好，少数区域涂层因光照、磕碰等，耐久性部分程度受到影响，机体结构关键件涂层受温度、湿度、盐雾浓度等的影响较小。 |
| 英文摘要: |
| The work aims to evaluate the durability of the coating for key components of the typical helicopter fuselage structure in the mild inland areas, and support the total calendar life extension of the fuselage. Visual inspection, coating gloss inspection and electrochemical AC impedance detection were carried out on the coating for key components of the fuselage structure during the overhaul cycle of the helicopter, and the detection data were comparatively analyzed to investigate the factors affecting the coating durability of the key components of the fuselage structure, and the durability of the coating was determined. The coating durability of the key components of the helicopter fuselage structure was better, the average light loss rate detected was 37.8% and the overall light loss rate was small. The average electrochemical impedance modulus value determined by the electrochemical impedance detection was 5.58×107 Ω.cm2, above the failure criterion, so the coating could effectively protect the key components of the fuselage structure from corrosive environment damage. During the overhaul cycle, the coating durability of the key components of the helicopter fuselage structure is good, and the durability of the coating in several areas is affected by the light and bumps, but the coating of the key components of the fuselage structure is less affected by temperature, humidity, salt spray concentration, etc. |
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