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| Discussion on Vibration Test Methods for Shipborne Equipment |
| Received:September 03, 2015 Revised:February 15, 2016 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2016.01.021 |
| KeyWord:shipborne equipment vibration test exposure order |
| Author | Institution |
| ZHU Yi-sheng |
1. The 723 Institute of CSIC， Yangzhou ， China; 2. China Shipbuilding Industry Environment and Reliability Test Centre for Electric and Electronic Equipment， Yangzhou ， China |
| WANG Chao |
1. The 723 Institute of CSIC， Yangzhou ， China; 2. China Shipbuilding Industry Environment and Reliability Test Centre for Electric and Electronic Equipment， Yangzhou ， China |
| CHEN Zhong-qing |
1. The 723 Institute of CSIC， Yangzhou ， China; 2. China Shipbuilding Industry Environment and Reliability Test Centre for Electric and Electronic Equipment， Yangzhou ， China |
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| Abstract: |
| Objective To discuss some problems in the vibration test of ship equipment and put forward the corresponding solutions. Methods The vibration test standards GJB 150.16A, GJB 4.7—83 and MIL-STD-167-1A were analyzed, finding out the shortcomings. The difference between the laboratory simulation and the real environment was expounded, and the improvement suggestions were put forward. Results It was not clearly described that the random part and the since part was a separate test or overlay test in GJB 150.16A, while GJB 4.7—83 and MIL-STD-167-1A only gave the since vibration part, not giving the condition of random vibration. Conclusion For the shortcomings of the standards, first half times of the function test for each axes were carried out, and then random superposition of since/ random vibration test was carried out, and finally the residual function test was carried out. For the difference between the laboratory simulation and the real environment, the improvement was achieved through using force spectrum control, test fixture for simulating ship′ s structure, prescribing the provisions of the installation and repeated iterative of environmental conditions and other methods. |
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