Abstract
Performance behaviours of a sector-shaped hydrodynamic thrust bearing have been presented herein, incorporating the combined geometry of a pocket and a fish (Rohita Labeo) scale texture on the pad surface. The governing Reynolds equation incorporating the mass conservation algorithm is discretized employing FEM and then the solution of the sets of the equations by applying FBNS method. Based on the numerical investigation, it is found that the textured pad enhances the film load capacity and reduces the friction coefficient than the conventional pad case.
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Abbreviations
- a :
-
Fish texture width (m)
- b :
-
Spacing of fish textures (m)
- h :
-
Film thickness (m)
- \(\overline{h}\) :
-
\(= h/h_{2}\)
- h 1 :
-
Inlet film thickness (m)
- h 2 :
-
Minimum (exit) film thickness (m)
- h d :
-
Pocket/Texture depth (m)
- \(\overline{h}_{T}\) :
-
\(= (h + h_{d} )/h_{2}\)
- M r :
-
\(= (2r_{z} + b)/(a + b)\)
- n :
-
Unit normal vector
- N :
-
Shape function
- N f :
-
\(= \theta_{f} /\theta_{c}\)
- N fp :
-
\(= (\theta_{f} - \theta_{p} )/\theta_{c}\)
- N r :
-
Total elements in radial direction
- N θ :
-
Total elements in sliding direction
- p :
-
Gauge pressure (N/m2)
- \(\overline{p}\) :
-
\(= ph_{2}^{2} /(\mu_{0}\Omega R_{1}^{2} )\)
- r :
-
Radial coordinate (m)
- \(\overline{r}\) :
-
\(= r/R_{1}\)
- r initial :
-
= (0.5 × ΔR − rz)
- r z :
-
Width of pocket in r direction (m)
- R 1 :
-
Inner radius of bearing (m)
- R 2 :
-
Bearing outer radius (m)
- ΔR (or B):
-
Bearing width (m)
- \(\theta_{f}\) :
-
Circumferential extents of pocket/texture
- \(\theta_{0}\) :
-
Pad angle (degree)
- \(\theta_{p}\) :
-
Circumferential extents of pocket in case of pocketed-fish textured pad
- \(\mu_{0}\) :
-
Viscosity 40 °C temperature (N-s/m2)
- Ω:
-
Speed (s−1)
- \(\phi\) :
-
Cavity or void fraction \((1 - \rho /\rho_{0} )\)
References
Gropper D, Wang L, Harvey TJ (2016) Hydrodynamic lubrication of textured surfaces: a review of modelling techniques and key findings. Tribol Int 94:509–529
Sudeep U, Tandon N, Pandey RK (2015) Performance of lubricated rolling/sliding concentrated contacts with surface textures: a review. J Tribol 137:031501
Rahmani F, Pandey RK, Dutt JK (2018) Performance studies of powder lubricated journal bearing having different pocket shapes at cylindrical bore surface. J Tribol 140:031704
Kharbanda JK, Pandey RK (2014) Application of tribology for enhancing the life of sugar mill roll bearing and journal. Int Sugar J 116:490–495
Gherca AR, Maspeyrot P, Hajjam M, Fatu A (2013) Influence of texture geometry on the hydrodynamic performances of parallel bearings. Tribol Trans 56:321–332
Aggarwal S, Pandey RK (2017) Frictional and load-carrying behaviours of micro-textured sector shape pad thrust bearing incorporating the cavitation and thermal effects. Lubr Sci 29:255–277
Aggarwal S, Pandey RK (2018) Performance investigation of micro-pocketed textured pad thrust bearing. Ind Lubr Tribol 70:1388–1395
Atwal JC, Pandey RK (2020) Performance analysis of thrust pad bearing using micro-rectangular pocket and bionic texture. Proc Instit Mech Eng Part J J Eng Tribol. https://doi.org/10.1177/1350650120940076
Atwal JC, Pandey RK (2020) Film thickness and friction investigations in a fluid film thrust bearing employing new conceived micro-texture on pads. J Tribol. https://doi.org/10.1115/1.4048500
Giacopini M, Fowell MT, Dini D, Strozzi A (2010) A mass-conserving complementarity formulation to study lubricant films in the presence of cavitation. J Tribol 132:041702
Woloszynski T, Podsiadlo P, Stachowiak GW (2015) Efficient solution to the cavitation problem in hydrodynamic lubrication. Tribol Lett 58:18
Acknowledgements and Declaration of Conflict of Interests
The authors would like to acknowledge the usage of IIT Delhi’s Baadal and HPC facilities. Moreover, the authors declare that there are no conflicts of interest in publishing this paper.
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Atwal, J.C., Pandey, R.K. (2022). Synergistic Effect of Pocket and Bionic Texture on the Performance Behaviours of Thrust Pad Bearing. In: Kumar, R., Chauhan, V.S., Talha, M., Pathak, H. (eds) Machines, Mechanism and Robotics. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-16-0550-5_109
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DOI: https://doi.org/10.1007/978-981-16-0550-5_109
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