Detection of Excessive Diesel Engine Piston Slap Using Acoustic Emission Signals

2014 ◽  
pp. 417-429
Author(s):  
David P. Lowe ◽  
Weiliang Wu ◽  
Andy C. C. Tan
Keyword(s):  
Acoustic Emission ◽  
Diesel Engine ◽  
Engine Piston

DEFINITION OF THE THERMAL BOUNDARY CONDITIONS AROUND A HIGH SPEED DIESEL ENGINE PISTON

1998 ◽  
Author(s):  
Serge Ravary ◽  
Franck Simon ◽  
Alain Alexandre ◽  
Jean-Bernard Saulnier ◽  
Dominique Joubert
Keyword(s):  
Diesel Engine ◽  
Boundary Conditions ◽  
High Speed ◽  
Thermal Boundary Conditions ◽  
Engine Piston ◽  
High Speed Diesel ◽  
Definition Of

Microcharacterization of heavy-duty diesel engine piston deposits

2002 ◽  
Vol 33 (3) ◽  
pp. 259-268 ◽  
Author(s):  
G. C. Smith ◽  
A. B. Hopwood ◽  
K. J. Titchener
Keyword(s):  
Diesel Engine ◽  
Heavy Duty ◽  
Engine Piston ◽  
Heavy Duty Diesel Engine ◽  
Heavy Duty Diesel

The analyses of frictional losses and thermal stresses in a diesel engine piston coated with different thicknesses of thermal barrier films using co-simulation method

2021 ◽  
pp. 146808742110656
Author(s):  
Fatma Bayata ◽  
Cengiz Yildiz
Keyword(s):  
Diesel Engine ◽  
Coating Thickness ◽  
Thermal Stresses ◽  
Equivalent Stress ◽  
Simulation Method ◽  
Thermal Barrier ◽  
Barrier Films ◽  
Engine Piston ◽  
Frictional Performance ◽  
Artificial Neural Network Ann

This study comparatively presents the thermal and mechanical effects of different Thermal Barrier Coatings (TBCs) and their thicknesses on the performance of aluminum diesel engine piston by combining Finite Element Analyses (FEA) and Artificial Neural Network (ANN) methods. The piston structure of MWM TbRHS 518S indirect injection six-cylinder diesel engine was modeled. The clustered TBCs (NiCrAlY–Gd2Zr2O7, NiCrAlY–MgO-ZrO2, NiCrAl–Yttria Partially Stabilized Zirconia (YPSZ), and NiCrAlY–La2Zr2O7) were implemented to the related surface of aluminum alloy piston and then static, thermal, and transient structural FEA were conducted for each model. Based on both of the temperature and equivalent stress distributions, NiCrAlY–Gd2Zr2O7 coated model displayed the best performance. Additionally, the effects of top coating thicknesses of TBCs were investigated in the range of 0.1–1.0 mm with 0.1 mm increments in FEAs. The thermally effective top coating thickness was predicted as 0.95 mm for the selected TBC using ANN method. Then the effects of coating thickness on frictional performance were revealed by generating transient structural FE models and utilizing stribeck diagram. The uncoated and 0.95 mm NiCrAlY–Gd2Zr2O7 coated models were adjusted as transient and the related crank angle – dependent in-cylinder combustion pressure data was implemented. The friction force was reduced by at least 15% in NiCrAlY–Gd2Zr2O7 coated model.

scholarly journals Diesel Engine Problems, Acoustic Emission Signals and Simulated Misfire Faults

2012 ◽  
pp. 587-598 ◽  
Author(s):  
D. P. Lowe ◽  
Weiliang Wu ◽  
Andy C. C. Tan ◽  
Richard J. Brown
Keyword(s):  
Acoustic Emission ◽  
Diesel Engine

Failure Investigation of a Diesel Engine Piston Pin

2010 ◽  
Vol 10 (3) ◽  
pp. 245-248 ◽  
Author(s):  
Xiao-lei Xu ◽  
Zhi-wei Yu
Keyword(s):  
Diesel Engine ◽  
Failure Investigation ◽  
Engine Piston

Experimental Investigations on the Failure of Diesel Engine Piston

2019 ◽  
Vol 16 ◽  
pp. 1196-1203
Author(s):  
G. Venkatachalam ◽  
A. Kumaravel
Keyword(s):  
Diesel Engine ◽  
Experimental Investigations ◽  
Engine Piston
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