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| Design Method of Unified Environmental Test Conditions for Equipment Based on Grading Strategy |
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| DOI：10.7643/issn.1672-9242.2023.04.002 |
| KeyWord:equipment grading strategy unified environmental conditions design method of environmental test conditions mechanical environment thermal environment natural environment |
| Author | Institution |
| LI Bing-wei |
China Academy of Launch Vehicle Technology, Beijing , China |
| NIU Zhi-ling |
China Academy of Launch Vehicle Technology, Beijing , China |
| HUANG Meng-hong |
China Academy of Launch Vehicle Technology, Beijing , China |
| LI Yu-qing |
China Academy of Launch Vehicle Technology, Beijing , China |
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| Abstract: |
| The work aims to propose a design method of unified environmental test conditions for equipment based on grading strategy. First of all, the unification of mechanical environment, thermal environment, natural environment and other environmental test conditions of equipment were demonstrated in detail, and the grading strategies of different types of environmental conditions were obtained. Then, the items in different types of environmental test conditions were analyzed, the unified method of "basic item" + "customized item" of environmental test project was put forward, and the general test project and customized test project were obtained. Then, for specific environmental test projects, three unified environmental test conditions were proposed:"envelope" based on extreme value, "fine" based on probability and statistics, and "grading" based on nearest set. Finally, the characteristics and tailoring methods of various methods were given, and the application cases and methods were displayed in combination with typical aerospace models. Thus, the method of establishing unified environmental conditions of equipment based on grading strategy was obtained, and the grading environmental test conditions of typical equipment were given. Considering the reality of equipment, the design method of unified environmental test conditions for equipment based on grading strategy is proved to be feasible, and it is of great engineering significance to reduce the cost of development, batch production and acceptance of shelf products and has important reference significance for the unification of technical conditions of other types of products. |
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