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| Research Status of Environmental Spectrum Acceleration Techniques for Typical Life Sensitive Parts in Engines |
| Received:November 01, 2023 Revised:December 04, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.12.001 |
| KeyWord:environmental spectrum accelerated test corrosion aging life evaluation engine equivalent relation |
| Author | Institution |
| TANG Qing-yun |
CEPREI, Guangzhou , China |
| LIU Tian-jiao |
CEPREI, Guangzhou , China |
| HU Yi |
AECC Hunan Aviation Powerplant Research Institute, Hunan Zhuzhou , China |
| LIU Jun-bang |
CEPREI, Guangzhou , China |
| ZHANG Hong-bin |
CEPREI, Guangzhou , China |
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| Abstract: |
| The work aims to analyze the research status of environmental spectrum acceleration techniques for life sensitive parts in engines. The concept and connotation of accelerated environmental spectrum were introduced in detail from the compiling principle, compiling method and the determination and verification of equivalent relation. The service life of engine was mainly restricted by the corrosion of metal sensitive parts and the aging of non-metal sensitive parts. The accelerated corrosion test methods were mainly described from three aspects:conventional accelerated corrosion test, multi-factor comperhensive test and high temperature accelerated corrosion test. The accelerated aging test methods of non-metals represented by rubber were introduced from the aspects of liquid medium aging, hot oxygen aging and comprehensive environmental aging. Finally, it pointed out the limitations of the current method of determining equivalent relation and the deficiency of the research of multi-factor integrated simulation method, and put forward the suggestion that a more scientific and reasonable method of determining equivalent relation should be formulated based on the relevant theories and practices of materials, corrosion, mechanics, environment science and other disciplines, and attention should be paid to the research and development of new test equipment. |
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