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Research Papers

Heat Transfer Analysis of Slewing Ring Bearing for High Thermal Applications

[+] Author and Article Information
S. Babu

Senior Assistant Professor,
School of Energy,
Department of Mechanical Engineering,
PSG College of Technology,
Coimbatore 641 004, Tamil Nadu, India
e-mails: sba@egy.psgtech.ac.in; sjsham@gmail.com

K. Manisekar

Professor
Department of Mechanical Engineering,
National Engineering College,
Kovilpatti 628 503, India

Er. S. KalaiSelvi

United India Insurance Co. Ltd.,
Divisional Office-5,
Coimbatore 641 043, India

1Corresponding author.

Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received April 2, 2016; final manuscript received July 7, 2016; published online October 4, 2016. Assoc. Editor: Dr. Sandra Boetcher.

J. Thermal Sci. Eng. Appl 9(1), 011006 (Oct 04, 2016) (9 pages) Paper No: TSEA-16-1083; doi: 10.1115/1.4034511 History: Received April 02, 2016; Revised July 07, 2016

The challenge in design and manufacturing tasks includes precise measurement of static friction, stiffness, deformation, raceway relative approach, and heat distribution of slewing ring bearings. These parameters affect the life and performance of the rolling elements bearing at elevated thermal environments. Toward that, sections of a complete bearing called linear model mock-up bearing (LMMB) have been designed and fabricated for the study of heat distribution. The physical significance of the heat distribution on bearing elements was studied using square-guarded hot-plate (SGHP) apparatus. The thermal contact conductance (TCC) experiments were carried out by varying surface roughnesses and interface temperatures under different loading conditions by using the combinations of steel plates and LMMB under dry and lubricated conditions. From this study, it is observed that the TCC values obtained from LMMB were significantly high across the contact surfaces of AISI 42100–AISI 52100–AISI 4140 steel plate's combination. Further, the finite element method (FEM) simulation has been carried out successfully to evaluate the temperature distribution in combination of bearing steel plates and LMMB by solidworks software, and the results are discussed.

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References

Figures

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Fig. 2

Proposed bearing steel plates and LMMB with total temperature drop

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Fig. 4

LMMB physical models with steel balls with gauge sets

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Fig. 5

Schematic views of square-guarded hot-plate apparatus

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Fig. 6

Temperature drop profile for different surface roughnesses (without lubrication)

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Fig. 7

Temperature drop profile for different surface roughnesses (with lubrication)

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Fig. 8

Temperature drop profile for bearing steel plates (with and without lubrication)

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Fig. 10

Surface roughness versus TCR for AISI 4140–AISI 52100–AISI 4140 bearing composite plates

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Fig. 9

Surface roughness versus TCR for AISI 4140–AISI 52100 plates

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Fig. 11

Number of ball versus TCR for LMMB set

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Fig. 12

TCR versus applied load (without lubrication)

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Fig. 13

TCR versus applied load (with lubrication)

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Fig. 14

Temperature distribution of AISI 4140–AISI 52100 with different surface roughnesses (without lubrication)

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Fig. 15

Temperature distribution of AISI 4140–AISI 52100 with different surface roughnesses (with lubrication)

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Fig. 16

Temperature drop profile for different interface temperatures (without lubrication)

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Fig. 17

Temperature drop profile for different interface temperatures (with lubrication)

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Fig. 18

Bearing mock-ups with heat dissipation model

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Fig. 19

Temperature distributions for LMMB (without lubrication)

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Fig. 20

Temperature distributions for LMMB (with lubrication)

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