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| Environment Test of Sea Chest Silencer |
| Received:September 01, 2018 Revised:April 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.04.015 |
| KeyWord:GJB150A environment test ship equipments |
| Author | Institution |
| LIU Yu-shi1 |
Harbin Engineering University, Harbin , China |
| LIU Gong-min1 |
Harbin Engineering University, Harbin , China |
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| Abstract: |
| Objective To verifyi the environmental suitability of sea chest silencer. Methods Structural composition, working principle and operating environment of the sea chest silencer were analyzed. Standards relevant to environment test were sum-marized. The parts of the surface ship in GJB 150A Methods for Environment Test of Military Equipment Laboratory Environment was cut out.. Tilt-swing test, vibration test and impact test were carried out according to GJB 150A to determine methods and relevant parameters of the above tests and design tooling for simulating seawater. Results After applying the ambient stress of the above tests, the sea chest silencer had no obvious deformation or loose and broken fasteners. The acoustic performance of the silencer had no obvious decrease, and insertion loss remained greater than 8 dB. Conclusion The sea chest silencer has high reliability under the bad environment condition; same test parameters of GJB 150A are designed too conservative, and it has less influence on the non-electronic equipment, and can be tested according to the measured force value. |
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