Experimental Research on Misfire Diagnosis Using the Instantaneous Angular Speed Signal for Diesel Engine

2014 ◽  
pp. 637-646
Author(s):  
Yu-hai He ◽  
Jian-guo Yang ◽  
Cheng’en Li ◽  
Fu-song Duan
Keyword(s):  
Diesel Engine ◽  
Experimental Research ◽  
Angular Speed ◽  
Instantaneous Angular Speed

scholarly journals Processing of Instantaneous Angular Speed Signal for Detection of a Diesel Engine Failure

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Adam Charchalis ◽  
Mirosław Dereszewski
Keyword(s):  
Diesel Engine ◽  
Measurement Data ◽  
Engine Performance ◽  
Failure Detection ◽  
Angular Speed ◽  
Measured Signal ◽  
Main Task ◽  
Optical Encoder ◽  
Detection Analysis ◽  
Instantaneous Angular Speed

Continuous monitoring of diesel engine performance under its operating is critical for the prediction of malfunction development and subsequently functional failure detection. Analysis of instantaneous angular speed (IAS) of the crankshaft is considered as one of the nonintrusive and effective methods of the detection of combustion quality deterioration. In this paper results of experimental verification of fuel system's malfunction detecting, using optical encoder for IAS recording are presented. The implemented method relies on the comparison of measurement results, recorded under healthy and faulty conditions of the engine. Elaborated dynamic model of angular speed variations enables us to build templates of engine behavior. Recorded during experiment, values of cylinder pressure were taken for the approximation of pressure basic waveform. The main task of data processing is smoothing the raw angular speed signal. The noise is due to sensor mount vibrations, signal emitter machining, engine body vibrations, and crankshaft torsional vibrations. Smoothing of the measurement data was carried out by the implementation of the Savitzky-Golay filter. Measured signal after smoothing was compared with the model of IAS run.

FAULT DETECTION IN A DIESEL ENGINE BY ANALYSING THE INSTANTANEOUS ANGULAR SPEED

2001 ◽  
Vol 15 (3) ◽  
pp. 549-564 ◽  
Author(s):  
JIANGUO YANG ◽  
LIJUN PU ◽  
ZHIHUA WANG ◽  
YICHEN ZHOU ◽  
XINPING YAN
Keyword(s):  
Diesel Engine ◽  
Fault Detection ◽  
Angular Speed ◽  
Instantaneous Angular Speed

Theoretical Calculation and Experimental Research on Sequential Turbocharging of a Marine Diesel Engine

2011 ◽  
Vol 305 ◽  
pp. 416-422
Author(s):  
Peng Qi Zhang ◽  
Qing Lin He ◽  
Yin Yan Wang
Keyword(s):  
Diesel Engine ◽  
Theoretical Calculation ◽  
Experimental Research ◽  
Marine Diesel Engine ◽  
Test Results ◽  
Low Load ◽  
Marine Diesel ◽  
Working Principle ◽  
Test Result

The paper introduces the working principle of the sequential turbo-charging (STC) system of multi-turbocharger. To improve low-load performance and operating economy of the 234V12 diesel engine, a STC system of multi-turbocharger for the diesel engine was designed. Theoretical calculation and experimental research was done on this improved marine diesel engine. Then, a 3-phase STC system is presented by analyzing and comparing the test result and the switching boundary of this system is confirmed. The test results show that the low-load performance is improved obviously by use of multi-turbocharger STC system.

A validated model for the prediction of rotor bar failure in squirrel-cage motors using instantaneous angular speed

2006 ◽  
Vol 20 (7) ◽  
pp. 1572-1589 ◽  
Author(s):  
Ahmed Y. Ben Sasi ◽  
Fengshou Gu ◽  
Yuhua Li ◽  
Andrew D. Ball
Keyword(s):  
Angular Speed ◽  
Squirrel Cage ◽  
Instantaneous Angular Speed

Design of a wire measurement system for dynamic feeding TIG welding using instantaneous angular speed

2018 ◽  
Vol 101 (5-8) ◽  
pp. 1651-1660 ◽  
Author(s):  
Régis Henrique Gonçalves e Silva ◽  
Luiz Eduardo dos Santos Paes ◽  
Gustavo Luis de Sousa ◽  
Cleber Marques ◽  
Alberto Bonamigo Viviani ◽  
...  
Keyword(s):  
Measurement System ◽  
Angular Speed ◽  
Tig Welding ◽  
Instantaneous Angular Speed
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