Improvement of Diagnosing Methods of the Diesel Engine Functioning under Operating Conditions

Varbanets, Roman; Karianskyi, Sergey; Rudenko, Sergey; Грицук, Ігор; Yeryganov, Aleksey; Kyrylash, Olena; Aleksandrovskaya, Nadezhda

doi:10.4271/2017-01-2218

Cited by 27 publications

(11 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Before installing the sensors, it is necessary to take the engine out of operation. The installed sensors must be calibrated, which is associated with a significant investment of time [6,9,10,18]. All portable systems for parametric engine diagnostics measure the pressure in the working cylinder through the channel of the indicator valve.…”

Section: Discussionmentioning

confidence: 99%

Determination of top dead centre location based on the marine diesel engine indicator diagram analysis

Varbanets¹,

Zalozh²,

Shakhov³

et al. 2020

Diagnostyka

Self Cite

View full text Add to dashboard Cite

The article discusses methods for determining top dead center, based on the analysis of pressure diagrams of a marine engine. The advantages and disadvantages of different methods are shown. Diagnostics of marine engines during operation and the selection of optimal operating conditions is based on the analysis of gas pressure diagrams, as well as fuel supply and gas distribution diagrams. As a result of the analysis of the pressure diagrams, the indicator engine power is calculated, which is further used in the management of engine operation modes, in the calculation of specific indicators, as well as in the calculation of energy efficiency coefficients of marine vessels according to International Maritime Organization recommendations. The influence of the accuracy of determining the position of the top dead center on the calculation of the mean indicated pressure and indicator power is shown. The authors considered a method for determining top dead center, based on the solution of the equation P'= 0, which provides the required accuracy in calculating the mean indicated pressure and indicator power of the engine during operation. It is shown that the method can be applicable in marine engine working process monitoring systems as an alternative to hardware methods for determining the top dead center.

show abstract

Section: Discussionmentioning

confidence: 99%

Determination of top dead centre location based on the marine diesel engine indicator diagram analysis

Varbanets¹,

Zalozh²,

Shakhov³

et al. 2020

Diagnostyka

Self Cite

View full text Add to dashboard Cite

show abstract

“…Further analysis showed that in the problem of determining the TDC, such an assumption is appropriate and an approximate average value of n1 within the indicated limits does not impair the quality of the simulation . Modeling quality greatly depends on the level of noise on the compression line and on the accuracy of determining the coordinates of the end compression Pc',modeling right border area [24].…”

Section: Model Equal To Zero the First Derivative Of The Pressure Undmentioning

confidence: 99%

Efficiency Control Improvement Of Diesel Engines Conditions By Using The Method Of Analytical Synchronization Of Monitored Data

Zalozh¹,

Тарасенко²,

Varbanets³

2020

Technium

View full text Add to dashboard Cite

Improving the efficiency of the ship's diesel power plant is becoming increasingly important every year. This is primarily due to the restrictions on emissions of sulfur and nitrogen oxides into the atmosphere during the operation of the ship's diesel engines. Article is devoted to the problem of synchronization of data monitoring working process in transport diesel engines operation. The accuracy of data synchronization determines the error in determining power, control of the main engine systems operation and its diagnostics. The method of solving the synchronization problem must be analytical. The method of solving the synchronization problem must be analytical. In comparison the hardware methods used in most diagnostic systems of the working process of diesel engines have several disadvantages. It is impossible to conduct rapid diagnostic control in operation, non-stationary phase and amplitude errors in calculation the main parameters of the working process, the need for preparatory operations and related need for temporary withdrawal of diesel engine operation, complexity and high cost of diagnostic control. An analytical synchronization method is developed based on the top dead center coordinate determination algorithm, which uses three stages: linear, sinusoidal and model equal to zero the first derivative of the pressure under compression. The proposed method of analytical synchronization gives the obvious advantages for monitoring working process systems of diesel engines. The error in determining the main parameters of the working process and the indicator power does not exceed 2.5%.

show abstract

“…In particular, the gas distribution mechanism is actually released from any adjustments, which used to be difficult and timeconsuming [2,3]. However, the precision of manufacturing these systems makes it much more serious to approach maintenance periods and frequency [4][5][6]. Thus, the presence of hydraulic couplings, hydraulic compensators, hydraulic tensioners, oil seals imposes essential requirements on the quality of engine oil and the timeliness of its replacement [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

The advancement of the methods of vibro-acoustic control of the ICE gas distribution mechanism

Гриценко¹,

Shepelev²,

Zadorozhnaya³

et al. 2020

FME Transactions

View full text Add to dashboard Cite

A modern vehicle is a system of high-precision systems. In particular, over the past 20 years, the gas distribution mechanism (GRM) has been structurally released from any adjustments. However, alongside with that, the elimination of the adjustments did not entail a decrease in the number of GDM failures. The analysis of a number of works shows that the GDM mechanism accounts for more than 30% of ICE failures. The problem lies in the high sensitivity of modern engine systems to the oil drain interval, fuel quality, timeliness of maintenance, etc., i.e. to carrying out of routine activities. According to the analysis of the operating conditions of modern vehicles, the regulations are significantly violated in more than 50% of cases, which results is a considerable reduction in the service life of vehicles. In this connection, it is relevant to develop diagnostic methods allowing us to determine the degree of wear of engine components at all vehicle operation stages. One of such methods is the vibro-acoustic method. The research aims to develop a methodology and method for diagnosing GRM by analyzing vibration parameters together with a pressure signal in the cylinder, the angle of the ICE crankshaft. As a result, the mechanism for recognizing the fault conditions of individual GRM valves is determined. A set of diagnostic tools for the selective diagnosis of GRM elements has been developed. A methodology for determining the GRM phases and thermal clearances in the valve drive using the nondemountable method has been created.

show abstract

Improvement of Diagnosing Methods of the Diesel Engine Functioning under Operating Conditions

Cited by 27 publications

References 4 publications

Determination of top dead centre location based on the marine diesel engine indicator diagram analysis

Determination of top dead centre location based on the marine diesel engine indicator diagram analysis

Efficiency Control Improvement Of Diesel Engines Conditions By Using The Method Of Analytical Synchronization Of Monitored Data

The advancement of the methods of vibro-acoustic control of the ICE gas distribution mechanism

Contact Info

Product

Resources

About