Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel

Vladimir Grachev; Aleksandr V. Grischenko; Fedor Y. Bazilevskiy; Maksim N. Panchenko

doi:10.20295/2223-9987-2022-3-103-117

UDC

621.431.73

METHOD FOR EQUALIZATION OF CYLINDER POWERS OF MULTI-CYLINDER LOCOMOTIVE DIESEL Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel

АА Аа

Published in Bulletin of scientific research results · Pages 103–117 · Rubric: PROBLEMATIC OF TRANSPORT SYSTEM

DOI: https://doi.org/10.20295/2223-9987-2022-3-103-117

Received: 22.09.2022 Accepted: 22.09.2022 Published: 22.09.2022

Authors

Vladimir Grachev

Aleksandr V. Grischenko

Fedor Y. Bazilevskiy

Maksim N. Panchenko

Vladimir Grachev

Academic degree: doctor of technical sciences

Science rang: professor

Emperor Alexander I St. Petersburg State Transport University Russian Federation

Aleksandr V. Grischenko

Academic degree: doctor of technical sciences

Science rang: professor

Emperor Alexander I Petersburg State Transport University Russian Federation

Fedor Y. Bazilevskiy

Academic degree: candidate of technical sciences

Science rang: docent

Emperor Alexander I Petersburg State Transport University Russian Federation

Maksim N. Panchenko

Academic degree: candidate of technical sciences

Science rang: docent

Emperor Alexander I St. Petersburg State Transport University Russian Federation

ABSTRACT

Purpose: Labor intensity reduction and equalization accuracy improvement of cylinder powers of a multi-cylinder diesel locomotive on account of application as a diagnostic parameter, characterizing cylinder power unevenness, — the energy of low-frequency band of spectrum for crankshaft instantaneous angular velocity (CIAV) signal. Methods: Methods of mathematical modeling of diesel crankshaft instantaneous angular velocity, mathematical modeling of diesel engine working process, digital signal processing, spectral analysis, differential calculus and multidimensional non-differentiable function optimization are used in the work. Results: Method for equalization of cylinder powers of a multi-cylinder diesel locomotive that’s based on a continuous monitoring of the spectrum of crankshaft instantaneous angular velocity signal is proposed and justified. Energy of low-frequency band of the signal spectrum of CIAV can be used as a diagnostic parameter, characterizing cylinder load unevenness. The parameter value minimization by means of sequential correction of cyclic fuel supply and fuel advance angle ensures the decrease in the pointed unevenness. Practical importance: The proposed method can be used when adjusting fuel equipment after the repair of a diesel engine as with electronic fuel supply control systems as well as with hydromechanical fuel equipment. The use of the given method excludes the necessity of temperature measurement for exhaust gases and flash pressure measurement in cylinders for fuel equipment adjustment that’s especially important for high-speed diesel engines which cylinder heads’ construction doesn’t provide for indicator cocks. In the engines equipped with electronic fuel control systems, the use of IAV signal spectrum low-frequency band energy as a diagnostic parameter makes it possible to automate fully the equalization process for cylinder load. The result of the proposed method application will be the reduction in the duration and labor intensity of diesel locomotives rheostat tests as well as the rise in diesel locomotives reliability and efficiency at the expense of uniform loading of diesel cylinders.

KEYWORDS

Diesel, instantaneous angular velocity, intra-cylinder pressure curve, mean indicator pressure, amplitude spectrum, spectrum energy, fuel cyclic supply, cycle maximum pressure

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GOST

Grachev V. V., Grischenko A. V., Bazilevskiy F. Y., Panchenko M. N. Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel // Bulletin of scientific research results. 2022. no. 3. pp. 103-117. DOI: https://doi.org/10.20295/2223-9987-2022-3-103-117. (Date of access 06.09.2026).

MLA

Vladimir Grachev, Grischenko A. V., Bazilevskiy F. Y., Panchenko M. N.. "Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel." Bulletin of scientific research results 2022.3 (2022): 103-117. DOI: https://doi.org/10.20295/2223-9987-2022-3-103-117.

APA

Grachev V. V., Grischenko A. V., Bazilevskiy F. Y., Panchenko M. N. (2022). Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel. Bulletin of scientific research results, 2022(3), 103-117. https://doi.org/10.20295/2223-9987-2022-3-103-117

Chicago

Vladimir Grachev, Grischenko A. V., Bazilevskiy F. Y., Panchenko M. N.. "Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel." Bulletin of scientific research results 2022, no. 3 (2022): 103-117. https://doi.org/10.20295/2223-9987-2022-3-103-117.

WIKI

{{cite journal | author = Grachev V. V., Grischenko A. V., Bazilevskiy F. Y., Panchenko M. N. | title = Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel | journal = Bulletin of scientific research results | year = 2022 | volume = 2022 | issue = 3 | pages = 103-117 | doi = 10.20295/2223-9987-2022-3-103-117 }}

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METHOD FOR EQUALIZATION OF CYLINDER POWERS OF MULTI-CYLINDER LOCOMOTIVE DIESEL Method for Equalization of Cylinder Powers of Multi-Cylinder Locomotive Diesel

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