The hydrostatic corer is designed for sampling sediment from the seafloor. Its operation relies on a water distributing valve which converts the potential pressure difference between ambient seawater and a built-in chamber with atmospheric pressure to the dynamic energy as the driving power. As the valve is exposed to the ambient water, the deformation of its components may exceed their fitting tolerance under the high pressure and low temperature on seafloor, and thus cause the failure of the valve. Three possible failure modes have been taken into account, representing the positions where interference of fitting tolerance is likely to occur. Corresponding models are then created considering the coupled effects of pressure and temperature on the valve. Based on the model results and the reliability requirement of the corer, one failure mode is selected to calculate the reliability of the valve and is used as guidance for the future improvement of the design.

Issue Section:
Operations, Applications and Components
Keywords:
hydrostatic sediment corer, reliability assessment, failure probability, Monte Carlo simulation method, ansys
Topics:
Failure mechanisms, Hydrostatics, Reliability, Sediments, Valves, Water, Pressure, Failure, Event history analysis, Temperature

References

1.
Chen
,
S. J.
,
1985
,
The Vast South China Sea
,
Science Press Publisher
, Beijing, p.
7
.
2.
Angadi
,
S. V.
,
Jackson
,
R. L.
,
Choe
,
S. Y.
,
Flowers
,
G. T.
,
Suhling
,
J. C.
,
Chang
,
Y. K.
, and
Ham
,
J. K.
,
2009
, “
Reliability and Life Study of Hydraulic Solenoid Valve, Part 1: A Multi-Physics Finite Element Model
,”
Eng. Failure Anal.
,
16
(
3
), pp.
874
–
887
.10.1016/j.engfailanal.2008.08.011
Google Scholar
Crossref
Search ADS
 
3.
Oberender
,
W.
, and
Bung
,
W.
,
1984
, “
The Reliability of Controlled Safety Valves in Conventional Power Plants
,”
Reliab. Eng.
,
9
(
1
), pp.
33
–
47
.10.1016/0143-8174(84)90005-2
Google Scholar
Crossref
Search ADS
 
4.
Babar
,
A. K.
,
Saraf
,
R. K.
, and
Sanyasi Rao
,
V. V. S.
,
1988
, “
Reliability Improvement in Electric Motor Operated Valves
,”
Reliab. Eng. Syst. Saf.
,
23
(
2
), pp.
159
–
161
.10.1016/0951-8320(88)90020-8
Google Scholar
Crossref
Search ADS
 
5.
Walski
,
T. M.
,
1993
, “
Water Distribution Valve Topology for Reliability Analysis
,”
Reliab. Eng. Syst. Saf.
,
42
(
1
), pp.
21
–
27
.10.1016/0951-8320(93)90051-Y
Google Scholar
Crossref
Search ADS
 
6.
Woo
,
S. W.
,
O'Neal
,
D. L.
, and
Pecht
,
M.
,
2010
, “
Reliability Design of a Reciprocating Compressor Suction Reed Valve in a Common Refrigerator Subjected to Repetitive Pressure Loads
,”
Eng. Failure Anal.
,
17
(
4
), pp.
979
–
991
.10.1016/j.engfailanal.2009.12.001
Google Scholar
Crossref
Search ADS
 
7.
2008
,
Edit Committee of Mechanical Design Handbook. Mechanical Design Manual
, Software Version 2008 (in Chinese), Chemical Industry Publisher.
8.
Shigley
, J. E., and
Mischke
, C. R.,
1989
,
Mechanical Engineering Design
, 5th ed.,
McGraw-Hill, Inc.
,
New York
.
9.
Franco
,
E. E.
,
Meza
,
J. M.
, and
Buiochi
,
F.
,
2011
, “
Measurement of Elastic Properties of Materials by the Ultrasonic Through-Transmission Technique
,”
Dyna-Clombia
,
78
(
168
), pp.
58
–
64
.
10.
Feng
,
W.
, and
Bao
,
C.
,
1982
, “
Topographic and Geomorphological Characteristics of South China Sea
,”
Marine Geol. Res.
,
2
(
4
), pp.
80
–
92
.
11.
2014
, Spotlight: The Spat over the Spratlys in 1995. “Britannica Book of the Year, 1996. Encyclopaedia Britannica Online Academic Edition. Encyclopædia Britannica Inc., Mar. 09, 2014. Available at: http://www.britannica.com/EBchecked/topic/1026244/territorial-dispute
12.
Wang
,
Z. S.
,
Xu
,
B. C.
,
Zou
,
E. M.
,
Yang
,
K. Q.
, and
Li
,
F. H.
,
1991
, “
A Study on the Numerical Prediction Method for the Vertical Thermal Structure in the Bohai and Huanghai Seas. One-Dimensional Numerical Prediction Model
,”
Acta Oceanol. Sin.
,
13
(
3
), pp.
315
–
321
.
13.
Xu
,
B. C.
,
Wang
,
Y. Z.
, and
Tian
,
S. Z.
,
1984
, “
Simulation of Vertical Distribution of Water Temperature in the Shallows
,”
Marine Sci. Bull.
,
3
(
1
), pp.
2
–
12
.
14.
Xu
,
B. C.
,
Wang
,
Y. Z.
, and
Tian
,
S. Z.
,
1983
, “
Simulation of Vertical Distribution of Sea-Water Density (σ_t) in Shallow Sea
,”
Adv. Marine Sci.
,
1
(
1
), pp.
9
–
12
.
15.
2010
,
Windows to the Universe, National Earth Science Teachers Association (NESTA)
. Available at: http://windows2universe.org/
16.
Yu
,
W.
,
1988
, “
Real-Time Analyses of Sea Surface Temperature of the South China Sea and Its Adjacent Waters
,”
Marine Forecasts
,
5
(
3
), pp.
9
–
17
.
17.
ansys® Academic Research
,
Release 14.0, Help System, 1.5.1.2 Latin Hypercube Sampling
, ANSYS, Inc.
Copyright © 2014 by ASME
You do not currently have access to this content.