Finite element analysis of thermal-structure coupled field of diesel engine cylinder liner

2010 ◽  
Author(s):  
Hai-qiang Ning ◽  
Ping Sun ◽  
Shu-xin Wang ◽  
Shi-lin Yu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Diesel Engine ◽  
Thermal Structure ◽  
Cylinder Liner ◽  
Element Analysis ◽  
Engine Cylinder ◽  
Coupled Field ◽  
Engine Cylinder Liner

Finite Element Analysis of the Cylinder Liner of a 280 Diesel Engine

2012 ◽  
Vol 616-618 ◽  
pp. 1745-1750 ◽  
Author(s):  
Ming Hai Li ◽  
Ding Ding Dong
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Diesel Engine ◽  
High Speed ◽  
Mechanical Load ◽  
Cylinder Liner ◽  
Lateral Force ◽  
Working Environment ◽  
Element Analysis ◽  
Piston Cylinder

The Cylinder liner is one of the key components of diesel engine. Combustion chamber set is constituted by Piston, Cylinder head, Cylinder liner and other parts. Its structure and working environment is complex. Received the gas pressure, friction force from high-speed reciprocating motion of the piston and lateral force of the piston, it results in mechanical stress and mechanical deformation. High temperature combustion and high pressure gas make the piston temperature distribution uneven, which results in piston thermal stress and thermal deformation. Therefore, the element analysis of Cylinder liner in the heat load and mechanical load is significant, the finite element analysis shows the deformation and the stress distribution of the Cylinder liner. It is meaningful for improving Cylinder liner design and reliability.

Thermal-Structure Coupled Field Analysis of a Certain HPD Diesel Engine Cylinder Liner

2012 ◽  
Vol 433-440 ◽  
pp. 7425-7429 ◽  
Author(s):  
Jian Ming Lv ◽  
Guang Yao Ouyang ◽  
Ping Zhang
Keyword(s):  
Diesel Engine ◽  
Maximum Stress ◽  
Thermal Structure ◽  
Cylinder Liner ◽  
Field Analysis ◽  
Heat Transfer Theory ◽  
Engine Cylinder ◽  
Sequence Method ◽  
Coupled Loads ◽  
Engine Cylinder Liner

Based on heat transfer theory and thermal-structure coupled in sequence method of finite element, the stress and displacement distribution of a certain high power density diesel engine cylinder liner under the action of thermal-structure coupled loads was calculated. The results showed that the highest temperature field of cylinder liner appeared on the upper part of the cylinder liner inner surface. Furthermore, the maximum stress value and displacement value of cylinder liner were obtained, which will give a gist for designing and calibrating cylinder liner in practical.

Finite Element Analysis of Diesel Engine Cylinder Head Stress and Deformation with Thermal-Mechanical Coupling

2011 ◽  
Vol 211-212 ◽  
pp. 190-194
Author(s):  
Guang Hui Xue ◽  
Xiang Song Yu ◽  
Pu Sheng Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Diesel Engine ◽  
Cylinder Head ◽  
Fuel Injector ◽  
Element Analysis ◽  
Face Surface ◽  
Mechanical Coupling ◽  
Engine Cylinder ◽  
Stress And Deformation

Considering the structure of some diesel engine cylinder head, its 3-D solid model and the finite element model is built, and after the load and constraint of is deal with, the stress and deformation the cylinder head with thermal-mechanical coupling is calculated with FEA ( Finite Element Analysis) software ABQUS. Analysis results find that: (1) the first main stress maximum value of cylinder head is up to 199.6MPa, which is less than 250MPa of the HT250 material ultimate tensile strength; (2) the deformation area is mainly in the flame face surface and fuel injector coxcombing, and the deformation of flame face is general symmetrical broadways and slightly large near the exhaust passage longways, while the deformation of fuel injector coxcombing is general symmetrical broadways and longways; (3) the structure design and strength of the cylinder head satisfy the design requirements.

Failure Analysis of Early Fracture for Diesel Engine Cylinder Liner

2012 ◽  
Vol 461 ◽  
pp. 177-181
Author(s):  
Jun Gu ◽  
Yuan Qiang Xu ◽  
Jing Jing Zhou
Keyword(s):  
Diesel Engine ◽  
Failure Analysis ◽  
Early Time ◽  
Cylinder Liner ◽  
Acute Angle ◽  
Engine Cylinder ◽  
Regulatory Measures ◽  
Engine Cylinder Liner

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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