Failure analysis of a leak-off oil pipe from injection valves of an off-shore operating diesel engine

This article, through the cylinder jacket break phenomenon which occurs to the diesel engine early time carries on the failure analysis, suggests that the cylinder jacket material ingredient control is lax, causes the cylinder jacket material brittleness to be oversized, the tool escape acute angle is the cylinder jacket break primary cause, and proposes corresponding regulatory measures prevent the cylinder jacket early tithe break.

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Failure analysis of diesel engine rocker arms

Engineering Failure Analysis ◽

10.1016/j.engfailanal.2004.12.039 ◽

2006 ◽

Vol 13 (4) ◽

pp. 598-605 ◽

Cited By ~ 3

Author(s):

Z.W. Yu ◽

X.L. Xu

Keyword(s):

Diesel Engine ◽

Failure Analysis

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Failure analysis of a diesel engine cylinder head

Engineering Failure Analysis ◽

10.1016/j.engfailanal.2005.07.016 ◽

2006 ◽

Vol 13 (7) ◽

pp. 1101-1107 ◽

Cited By ~ 10

Author(s):

Xiaolei Xu ◽

Zhiwei Yu

Keyword(s):

Diesel Engine ◽

Failure Analysis ◽

Cylinder Head ◽

Engine Cylinder

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Paper 2: Safety and Failure Analysis of Large Diesel Engine Pistons

Proceedings of the Institution of Mechanical Engineers Conference Proceedings ◽

10.1243/pime_conf_1969_184_034_02 ◽

1969 ◽

Vol 184 (2) ◽

pp. 8-16 ◽

Cited By ~ 1

Author(s):

D. J. White ◽

L. R. Enderby

Keyword(s):

Cast Iron ◽

Diesel Engine ◽

Failure Analysis ◽

Diesel Engines ◽

Fatigue Testing ◽

Fatigue Tests ◽

Safety Factors ◽

Design For Safety ◽

Theoretical Stress ◽

Fatigue Failures

This paper describes investigations that were undertaken to identify the reasons for fatigue failures in cast iron and aluminium pistons of large diesel engines. The work involved experimental and theoretical stress analyses, and fatigue tests were made on specimens cut from actual pistons. It was found that four pistons which suffered fatigue failures had safety factors of 0·60, 0·68, 0·94, and 0·96, while three modified designs which performed satisfactorily were assessed to have safety factors of 1·1, 1·24, and 1·57. Special attention is drawn to the method of fatigue testing in which features typical of the piston are retained. While it is considered prudent to design for safety factors substantially in excess of unity, the results presented should promote confidence that this approach to the design of components is valid not only in this case but more generally.

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