Journal
OCEAN ENGINEERING
Volume 125, Issue -, Pages 182-190Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.oceaneng.2016.06.032
Keywords
Seawater hydraulic; Relief valve; Simulation; Deformation; Dynamic performance
Funding
- program for New Century Excellent Talents in University [NCET-13-0231]
- National Sci-Tech Support Plan [2014BAB12B06]
- Shenzhen Technical RD Funds [JCYJ20120830153030585]
- China Postdoctoral Science Foundation [2014M560609, 2015T80804]
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Considering the deformation of a designed seawater direct-acting relief valve (SDARV) in deep-sea environment, which has a significant influence on the dynamic performance, the mathematic model of SDARV was established and related dynamic characteristic simulations were conducted. Since the fit clearance. between damping spindle and damping bush is the key parameter affecting the dynamic characteristic of SDARV, the different fit clearances against varying depths were studied by ANSYS Workbench. The variations of seawater properties at different sea depths were also introduced to investigate the effect. From this study, the valve's dynamic performance after optimization in deep-sea environment was researched by MATLAB and the effective sea depth suiting for normal work was got. The results indicated effective dynamic performance of the SDARV within the depth of 1700 m and the optimum fit clearances after deformation should be kept in the range of 0.019 mm to 0.045 mm in deep sea environment. (C) 2016 Elsevier Ltd. All rights reserved.
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