Automated Diagnostic System for Engine Cylinder-Piston Group

Saraiev, Olexii; Saraieva, Iryna; Грицук, Ігор; Volkov, Vladimir; Litikova, Oleksandra; Belousov, Evgen; Savchuk, Volodymyr; Samarin, Oleksandr; Ahieiev, Maksym; Volodarets, Mykyta; Vrublevskyi, Roman; Kurnosenko, Daria

doi:10.4271/2020-01-2022

Cited by 7 publications

(3 citation statements)

References 10 publications

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“…У роботі застосована методика діагностування герметичності ЦПГ та клапанів бензинового двигуна ДТЗ на цифровому стенді [24]. Умовно можна виділити кілька основних етапів процесу діагностування та експертної оцінки технічного стану ЦПГ і герметичності клапанів двигуна -це монтажні роботи, які пов'язані з установкою датчиків, пристроїв тощо; вимірювання діагностичних параметрів; постановка діагнозу; розборка двигуна, вимірювання структурних параметрів (рис.…”

Section: експериментальні дослідження та експертна оцінка технічного ...unclassified

Expert assessment of the technical condition of the cylinder-piston group of the car engine

Sarayevа¹,

Khrulev²,

Vorobiov³

2021

JMET

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Informative dampers and installation methods do not dose the speed, accurately distinguish the nature of the injustice of the cylinder-piston group and check the tightness of the valves of the single-stage model of the engine, which allows a preliminary quality assessment in the production assessment. . During the inspection, the activity of the "black box" is checked for unknown structural elements, the initial diagnostic obligations that affect. The nomenclature of structural parameters that are checked is determined in accordance with existing standards. Based on the advanced model development method produced by the technical condition of the cylinder-piston group and the sealed valve of the engine, model, detailed dosing, statistical information, machines, machines, machines, machines, machines, machines, machines, machines and equipment. first, to localize the unevenness of the cylinder-piston group and the tightness of the engine valve, and secondly, to formally process the process of automated technical diagnosis; thirdly, it will provide a high rate of indiscriminate diagnosis. To assess the sensitivity of the diagnostic value as a random variable, it is proposed to evaluate not the relative change in the limit and nominal value of the controller, the relative change in the average value of the random variable within the allowable value. The diagnostic parameter is considered stable if the condition under which the absolute maximum value from the average value does not exceed "three sigma" is fulfilled. Informative in consideration is the diagnostic parameter in which the ratio of the difference between the average significant value of the random control in good and faulty state of the object to the difference of standard deviations exceeds one. Expert assessment of the technical condition of the road vehicle is associated with the determination of diagnostic parameters, structural parameters, as well as the reasons that caused the change of these parameters.

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Section: експериментальні дослідження та експертна оцінка технічного ...unclassified

Expert assessment of the technical condition of the cylinder-piston group of the car engine

Sarayevа¹,

Khrulev²,

Vorobiov³

2021

JMET

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“…Заводы машиностроения почти 40% металла расходуют на изготовление запасных частей, которые в основном определяют себестоимость ремонта машин. Основная задача создания и повсеместного внедрения принципиально новой техники и материалов заключается в экономии сырья и топливно-энергетических ресурсов, а также во вторичном использовании материальных ресурсов [1,2,3,4,5,6,7,8,9,10,11]. В связи с этим большое значение имеет разработка прогрессивных технологических процессов, в особенности процессов восстановления деталей массового производства [12,13,14,15,16,17].…”

Section: Introductionunclassified

“…Анализ существующих технологий восстановления поршневых пальцев ДВС показал, что данные способы восстановления поршневых пальцев в ряде случаев отличаются сложностью процесса, низкой производительностью, значительными расходами тепловой и электрической энергии [1,8,12,13,17,18,19,20]. Ни один из существующих способов не является универсальным и по различным причинам неприменим для восстановления всех видов поршневых пальцев.…”

Section: Introductionunclassified

Electric discharge process modelling when piston pins recovery in internal combustion engines

Savenko,

Matvienko

et al. 2024

Vestn. SibADI

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Introduction. The relevance of the topic of the presented article is determined by the improvement of the technology for repairing and restoring machine parts. Currently, the technology of restoring piston pins of internal combustion engines (ICE) by a high-energy method of plastic deformation of metal using the energy of a high-voltage pulse discharge in a liquid is widely used – the electrohydraulic effect, and on its basis electrohydraulic processing. The purpose of the article is to increase the efficiency of the method of restoring piston pins of internal combustion engines due to the use of the electrohydraulic distribution method.Materials and methods. The research methods such as the analysis of the degree of influence of the electrical parameters of the electrohydraulic distribution process on the amount of deformation of the piston fingers depending on the relevant material were used. The article discusses a mathematical model of the electric discharge process when restoring piston pins. The calculation method determines the modes and parameters of the process of electrohydraulic distribution of piston pins while maintaining their fatigue life, static strength and wear resistance.Results. In this work, the degree of influence of the electrical parameters of the electrohydraulic distribution process on the amount of deformation of the piston pins, depending on the product material used, is established. A mathematical model of the electric discharge process during the restoration of piston pins has been developed, and based on them, the modes and parameters of the process of electrohydraulic distribution of piston pins have been determined while maintaining their fatigue life, static strength and wear resistance.Discussion and conclusions. The studies have shown that exploding wires made of iron, copper, and tungsten are not effective in restoring piston pins with an internal radius of up to 10 mm. The pressure in the case of their use does not exceed 100 MPa. Exploding Al wires with a diameter of less than one millimeter have the greatest effect. In this case, the inductance of the circuit should be minimal, because this provides the largest share of the energy released in the discharge channel from all stored in the capacitor. This ensures the highest pressure in the channel. Based on the same considerations, the capacity should be limited to a range of 3-12 UF. This method can be applied to the restoration of other car parts.

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Development of a Simulation Model of a System for Automatic Regulation of the Capacity of a Compressor Unit

Satsiuk¹,

Volodarets²,

Грицук³

et al. 2022

SAE Technical Paper Series

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Automated Diagnostic System for Engine Cylinder-Piston Group

Cited by 7 publications

References 10 publications

Expert assessment of the technical condition of the cylinder-piston group of the car engine

Expert assessment of the technical condition of the cylinder-piston group of the car engine

Electric discharge process modelling when piston pins recovery in internal combustion engines

Development of a Simulation Model of a System for Automatic Regulation of the Capacity of a Compressor Unit

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