Analysis of cylindrical roller bearings design in order to optimize the classical process using FEM

Pușcașu, Alin Marian; Lupescu, Octavian; Bădănac, Ana

doi:10.1051/matecconf/201711206017

Cited by 4 publications

(6 citation statements)

References 1 publication

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“…Furthermore, the least stress was developed on the cage due to its minimal interference in the whole process as compared to the other components. A similar result was reported by Pușcașu et al (2017), where the maximum Hertzian stress in the bearing assembly was developed on the outer ring.…”

Section: Resultssupporting

confidence: 88%

Influence of operating speed on the thermo-mechanical behaviour of cylindrical roller bearing

Mashiyane

Desai

Tartibu

2022

SATNT

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The high load-bearing ability of cylindrical roller bearing made its usage in rotating machinery popular. However, the performance of this bearing is impeded by the contact stress, stiffness and the temperature rise experienced operation. In this study, the thermomechanical behaviour of martensitic stainless steel (X20) fabricated roller bearing with polyamide pin type cage subjected to different rotating/operating speeds was simulated using finite element analysis software, Abaqus. The outcome of the analyses shows that the temperature, heat flux, contact or Hertzian stress and frictional energy developed in the bearing during operation increases with a corresponding increase in speed. It was further observed that a slight increase in the operating speed of the bearing leads to a significant rise in the temperature and frictional energy developed in the bearing. Also, the maximum Hertzian/contact stress was observed to developed on the outer ring of the roller bearing assembly (at the point of contact between the outer ring and the balls) in all the operational speeds considered. Thus, making this outer ring more susceptible to failure during operation as compared to the other components of the bearing.

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Section: Resultssupporting

confidence: 88%

Influence of operating speed on the thermo-mechanical behaviour of cylindrical roller bearing

Mashiyane

Desai

Tartibu

2022

SATNT

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“…At the same time, the cited work does not provide criteria for the possibility of using a two-dimensional model. Article [10] reports the analysis of a cylindrical roller bearing and suggests simplifying the geom-etry of the model to speed up the calculation. The authors established the distribution of contact pressures and projected lifespans for rings and rollers.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

“…However, the cited article uses a very rough grid, which calls the results into question. The ideas, proposed in papers [8][9][10], to simplify the model at the cost of reducing the accuracy of calculation look doubtful.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

The refined strength calculation and optimization of the inner geometry of cylindrical bearing units

Girshfeld¹,

Simson

2020

EEJET

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Закритi пiдшипниковi вузли для залiзничного рухомого складу повиннi забезпечувати 800.000 км або 8 рокiв пробiгу (а найближчим часом-1 млн км та 10 рокiв) без будь якого обслуговування. Для досягнення настiльки високих експлуатацiйних показникiв необхiдно вже пiд час проектування закритих пiдшипникових вузлiв забезпечити практичну вiдсутнiсть зносу протягом майже всього вказаного пробiгу. Наведенi результати оптимального проектування елементiв внутрiшньої геометрiї закритих пiдшипникiв на уточнених математичних моделях на прикладi цилiндричного буксового пiдшипникового вузла «DUPLEX» для рухомого складу простору колiї 1520. Основною математичною моделлю було обрано геометричну нелiнiйну контактну задачу теорiї пружностi, для вирiшення якої авторами використовувався метод скiнчених елементiв. Розроблено оригiнальну нелiнiйну скiнчено-елементну модель мультиконтактної задачi, яка враховує: контактнi деформацiї «рейка-колесо», деформування осi колiсної пари, деформування букси та кiлець пiдшипника при контактнiй взаємодiї зi всiма роликами. Модель дозволяє уточнити розподiл навантажень в окружному напрямку та, вiдповiдно,максимальне навантаження на ролик. Ця ж модель може бути використана в том числi для аналiзу зносу гребня колеса та впливу рiзнозазорностi на знос пiдшипника. Розроблено математичну модель та цiльову функцiю для оптимiзацiї профiля ролика («бомбiни», твiрної бокової поверхнi обертання) з урахуванням накопичення пошкоджень вiд «нерегулярного» навантаження точок поверхнi ролика вiд контактiв як з зовнiшнiм, так i внутрiшнiм кiльцем. Проведено оптимiзацiю форми контактуючих в осьовому напрямку торця ролика та робочого борта кiльця, в результатi якої встановлено, що оптимальними є «антропологiчнi форми» опуклого торця ролика та увiгнутого борта кiльця. Для технологiчного спрощення конструкцiї замiсть увiгнутого борта кiльця прийнято варiант з конiчною поверхнею борту з оптимальним значенням «розвалу». Ключовi слова: закритий пiдшипниковий вузол, бомбiна, ролик, мультиконтактна задача, метод скiнчених елементiв, математична модель

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“…Bearings are an essential component of all rotating machines and they function as a support to machines, and about 90 per cent of their failure during operation is catastrophic [1]. The radial bearings are often considered one of the most crucial components of rotating machinery in industrial applications.…”

Section: Introductionmentioning

confidence: 99%

“…In practice, different types of bearings are in use, and they include thrust bearings, cylindrical roller bearings, spherical roller bearings, and tapered roller bearings [4]. Several designs and technologies have been adopted in the aspect of heat treatment of bearing materials, machining, bearing components contacts, and the use of different simulation software in a bid to improve the knowledge of preventing the failure of bearings [1].…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of the effect of angular misalignment on the dynamic behaviour of bearing

Mashiyane

Desai²,

Tartibu³

2022

MATEC Web Conf.

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Bearing has been used extensively in numerous applications and their unplanned failure has a consequential effect on the smooth operation of the machinery. A slight misalignment in bearing has a detrimental effect on the smooth running of most machines. Hence, the paper leverages finite element technique to simulate the consequential effect of different degrees (0.1°, 0.2°, 0.3°, 0.4°, 0.5°) of misalignment on the dynamic behaviour of a cylindrical roller bearing subjected to typical operating conditions of an airflow root blower. The results of the study show that during operation, the temperature and Hertzian stress developed increased with an increase in the degree of misalignment and operating/rotating speed, and the maximum Hertzian stress was developed on the outer ring of the bearing in all the degrees of misalignments and operational speeds considered. Thus, making the outer ring of the bearing component, the most prone to failure during operation in the presence of misalignment.

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Analysis of cylindrical roller bearings design in order to optimize the classical process using FEM

Cited by 4 publications

References 1 publication

Influence of operating speed on the thermo-mechanical behaviour of cylindrical roller bearing

Influence of operating speed on the thermo-mechanical behaviour of cylindrical roller bearing

The refined strength calculation and optimization of the inner geometry of cylindrical bearing units

Numerical simulation of the effect of angular misalignment on the dynamic behaviour of bearing

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