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| Progress on Spacecraft Direct Field Acoustic Testing Technique Research |
| Received:August 23, 2017 Revised:February 15, 2018 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2018.02.013 |
| KeyWord:direct field acoustic test speaker reverberant acoustic field MIMO control DFAT |
| Author | Institution |
| LIU Zhen-hao |
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| REN Fang |
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| YUAN Kai |
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| LI Hai-bo |
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| ZHANG Zhong |
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing , China |
| QIN Zhao-hong |
Science and Technology on Reliability and Environment Engineering Laboratory, Beijing Institute of Structure and Environment Engineering, Beijing , China |
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| Abstract: |
| To achieve design, manufacture and testing of the spacecraft in parallel, decrease the test cost and reduce the cycle, in recent decade, the direct field acoustic testing (DFAT) technique was developed in foreign countries. Compared with reverberant field acoustic test, this new acoustic test technology has the advantages of convenience and shortcut, which enhance the testing efficiency remarkably. In terms of spacecraft development and test in the future, the progress instance of DFAT was discussed. The DFAT system constitution and development were elaborated in speaker matrix configuration, improvement of controlling technique and current situation. Typical DFAT cases developed by foreign countries in recent 10 years were discussed and some problems like uniform of the acoustics field, contrast with reverberant acoustic field, structure response of the test article and standing waves were summarized. The future application of DFAT technique was expected. Some problems and challenges of developing DFAT technique in China were indicated. |
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