Rayleigh wave at composite porous half space saturated by two immiscible fluids

Painuly, Abhishek; Arora, Ashish

doi:10.1016/j.apm.2019.03.038

Cited by 9 publications

(5 citation statements)

References 37 publications

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“…Identification of this condition was carried out in places of maximum wear, which did not make it possible to assess the overall picture of the state of wear of triboelement. Additional values of wear in the mating parts are carried out by abrasive particles, which form local compression zones in the contact zone, which are further stress concentrators [37]. But the work did not reveal the causes of the occurrence of the elements of the particles of abrasives or they arise from tribological additives, or from synthetic additives of surface substances.…”

Section: Anmentioning

confidence: 93%

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Аулин¹,

Lyashuk²,

Hrynkiv³

et al. 2019

Tribol. Ind.

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Studies of the formation of the optimal composition of Tribological additives to the base oil have shown the possibility of improving the characteristics of the tribosystem. It was revealed that this Tribological additive makes it possible to form functional surface layers that provide normal operating conditions for tribological conjugation of parts. Based on the optimization of the technical condition of the Tribological additives, the optimal values of each of its components are obtained. Optimization of the condition provided that the amount of wear should tend to a minimum, and the maximum load and loading of the weld should tend to a maximum. Based on the experimental database on the 4ball friction machine, an equation is obtained for each of the indicated response functions of the resulting features, based on which, with a desirability value of the order of 1.0, the composition of Tribological additives is obtained: from Katerynivka Friction geo modifiers; Sodium oleate, copper sulfate and phosphor TAT 33. It was found that the adding of TM-3-18k into the oil Tribological additives in the amount of 5.75 % under laboratory conditions can reduce the wear rate by 35.1 -35.5 %, the maximum load also increases by 17.1 -17.2 %, and the welding load increases by 5.3 -8.4 %. The analysis of experimental data shows that this Tribological additive can be operated at locally loaded parts of 1035 N, and the peak contact overload is up to 2385 N. The research results suggest that the proposed Tribological supplement makes it possible to improve the characteristics of the tribosystem. It can be useful to service and trucking enterprises during technical service and for the manufacturing of composite oil.

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Section: Anmentioning

confidence: 93%

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Аулин¹,

Lyashuk²,

Hrynkiv³

et al. 2019

Tribol. Ind.

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“…Dehydrated glycerin, heated to a temperature of 391…395 K, was supplemented with anhydrous copper acetate (II) in the amount of 7...8 % relative to the volume of glycerin; this process was accompanied by a moderate agitation. The specified temperature is the boiling point of acetic acid [31]. Duration of boiling is 2 hours.…”

Section: Materials and Methods For The Formation And Studying The Stamentioning

confidence: 99%

“…First of all, one needs to discover the regularities of influence of additives from a composite oil on the working surface of components and the dissipative properties of the formed protective films. The latter, under certain conditions, can ensure a significantly lower temperature of welding in a tribological contact [31]. It would be desirable to describe the mathematical model of wear in the presence of additives to the oil.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Exploring a possibility to control the stressedstrained state of cylinder liners in diesel engines by the tribotechnology of alignment

Аулин

Hrynkiv

Лысенко

et al. 2019

EEJET

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ress of friction and wear processes during operation largely depends on the properties of a lubricating environment and the films of antifriction materials formed at the working surfaces. In this case, the copper-containing materials are widely used for the surfaces of mating parts, operated under conditions of contact against high-temperature, abrasive-based substances. However, while possessing high electrical con-6

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“…The areas of stressed-strained state were found in the places of maximum wear, but to analyze the complete pattern of parts' wear, it is also necessary to study the area of minimum wear. In addition, the magnitude of wear in mated parts is affected by the abrasive particles, which getting into the tribological contact, in turn, form the local compression zones that are the concentrators of stress during operation [38]. It was not found in the work if this process flows with participation of the elements of a tribologically active additive or synthetic additive based on surfactants.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Determining the rational composition of tribologically active additive to oil to improve characteristics of tribosystems

Аулин

Hrynkiv

Лысенко

et al. 2019

EEJET

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Проведеними дослідженнями формування раціонального складу трибологічно активної добавки до базової оливи показана можливість покращення характеристик трибосистем. Виявлено, що дана трибологічно активна добавка дає можливість формувати трибологічні властивості, що забезпечують нормальні умови експлуатації спряжень деталей трибосистеми. На основі оптимізації технічного стану трибологічно активної добавки отримано раціональні значення кожного з її складових. Оптимізацію проведено за умов, що величина зношування повинна прямувати до мінімуму, а критичне навантаження та навантажування зварювання-до максимуму. На основі експериментальної бази даних на чотирикульковій машині тертя отримано рівняння для кожної з функцій відгуку результуючих ознак. Отриманні регресійні рівняння та значення функції бажаності порядку 0,698 дали можливість визначити склад трибологічно активної добавки: метакаолін, дисперсійний порошок глини з Катеринівського родовища, олеат натрію, гідрооксид літію та сірки. Встановлено, що при використанні отриманої трибологічної активної добавки в лабораторних умовах зафіксовано зменшення зношування зразків на 26,8 %, збільшення критичного навантаження на 17,2 %, збільшення навантажування зварювання на 4,89 %. Аналіз експериментальних даних свідчить, що пропоновану трибологічно активну добавку можливо експлуатувати при локальному контактному навантажуванні в контакті до 1078 Н та при піковому перенавантажуванні до 2372 Н. Результати досліджень дають підстави стверджувати, що пропонована трибологічно активна добавка дає можливість покращити характеристики трибосистем. Вона може бути корисною сервісним та автотранспортним підприємствам при проведені технічного сервісу та для виготовлення композиційної оливи Ключові слова: трибологічно активна добавка, геомодифікатор, зношування, сірка, літієві мила, натрієві мила, метакаолін, навантаження зварювання UDC 629.

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Rayleigh wave at composite porous half space saturated by two immiscible fluids

Cited by 9 publications

References 37 publications

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Exploring a possibility to control the stressedstrained state of cylinder liners in diesel engines by the tribotechnology of alignment

Determining the rational composition of tribologically active additive to oil to improve characteristics of tribosystems

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Rayleigh wave at composite porous half space saturated by two immiscible fluids

Cited by 9 publications

References 37 publications

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Determination of the Rational Composition of the Additive to Oil with the Use of the Katerynivka Friction Geo Modifier

Exploring a possibility to control the stressed­strained state of cylinder liners in diesel engines by the tribotechnology of alignment

Determining the rational composition of tribologically active additive to oil to improve characteristics of tribosystems

Contact Info

Product

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Exploring a possibility to control the stressedstrained state of cylinder liners in diesel engines by the tribotechnology of alignment