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81.21-06-2024Title: Optimisation of finger seal pad design for reducing the leakage between the high-pressure and low-pressure region Abstract:The main objective of this work is to optimize the leakage flow between the rotor and pad region of the finger seal. To have a tapered pad surface in each finger laminate and create a pressure wedge configuration between the rotor and the pad of the finger seal, so that an opposing pressure is developed reduces leakage and controls the flow. The leakage flow variation for different taper angles was calculated along the axial direction and also effort was made to introduce taper in both the pad and rotor surface and the effect on the leakage is analysed. Simulation of leakage flow is carried out using a COMSOL Multi-physics software and the results are validated with the experimental results. An experimental study of leakage showed a very close pattern when compared to CFD Results obtained using Comsol multi-physics. The experimental study of a finger seal with a wedge height of 2mm showed a reduction of leakage by nearly 16% in comparison with the conventional seal, and a finger seal with a 1mm wedge showed a leakage reduction of 9%. The present work shows a substantial improvement in the performance of finger seals. The introduction of a wedge reduced the contact between the pad and rotor from surface contact to line contact, thus reducing the wear rate was almost zero. The finger seals are contactless seals due to the hydrodynamic lifting of flexible fingers which would accommodate the thermal expansion of the rotor and displacement of the rotor.
Authors: Rajesh P and Sharanabasavaraj J
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82.06-06-2024Study of Leading Edge Protuberances for Low Speed Horizontal Axis Wind Turbines. Educational Administration:Theory and Practice, 30(5), 12969-12974. ISSN:2148-2403.
Authors: Vardhaman S. Mudakappanavar et al
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83.31-05-2024Studies on wear and microstructure assessment of WC-Co reinforced iron based HVOF coating
Authors: C. Durga Prasada, Piyush Kumar Soni, Nagaraja K. C, Eswaran A, Suresh Kumar R
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84.29-05-2024The Impact of nanoparticles (B4C-Al2O3) on mechanical, wear, fracture behavior and machining properties of formwork grade Al7075 composites. (2024). Fracture and Structural Integrity, 18(69), 210-226. https://doi.org/10.3221/IGF-ESIS.69.15
Authors: TP Prakash, M Ganghadharappa, Santhosh Somashekar, M Ravikumar
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85.14-05-2024" Comparative analysis of sliding wear behaviour of A356 nanocomposites using response surface methodology and artificial neural network approaches"Eng. Res. Express 6 (2024) 025535.14 May 2024
Authors: Kiran Kumar N1 , D Chethan2 , B N Sarada3 , H S Yeshvantha4 and Hanamantray Gouda4
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86.07-05-2024Enhanced Tribological Properties of Nano-TiO2 Reinforced Polymer Composites Fabricated via Stereolithography
Authors: Mahantesh M. Math, K V S Rajeswara Rao, M. N. Gururaja, J. S. Srikantamurthy, Suresh Erannagari, S. Ramesh, V L Jagannatha Guptha & B. N. Prashanth
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87.17-04-2024 Cyclic Oxidation and Hot-Corrosion Behavior of HVOF-Sprayed NiCrAl Coating on Industrial Boiler Tube Steels, JOM https://doi.org/10.1007/s11837-024-06526-1
Authors: M.R. RAMESH, SUBBARAO MEDABALIMI, R. SURESH KUMAR, C. DURGA PRASAD ,and SHRISHAIL B. SOLLAPUR
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88.15-04-2024Impact of Boundary Conditions and Radius of Curvature on Vibro-Acoustic Behavior of Cold-Rolled Carbon Steel Structure, Journal of Vibration Engineering & Technologies
Authors: Anilkumar A, Rammohan Y S & B S Suresh
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89.18-03-2024Evaluation of Mechanical, Wear and Fracture Behavior of Silicon Carbide Particulates Reinforced Al7075 Composites using Response Surface Methodology Technique
Authors: Rudra Naik, M Ravikumar, YS Rammohan, S Raghavendra, R Suresh
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90.01-03-2024STUDY ON STRONTIUM AND SODIUM MODIFICATION ELEMENTS ON MICROSTRUCTURE, MECHANICAL, WEAR AND FRACTURE BEHAVIOR OF AL7075 ALLOY BY TAGUCHI TECHNIQUE, Jordan Journal of Mechanical and Industrial Engineering, 18 (1), pp. 145-157.
Authors: M RAVIKUMAR, HANUMANTHE GOWDA, S VIJAYKUMAR, HN REDDAPPA, SURESH R
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91.07-02-2024 Fatigue Crack Growth Rate Behaviour of an Additive Manufactured Nickel Base Superalloy Inconel 718, The Minerals, Metals & Materials Series ((MMMS)), TMS 2024 153rd Annual Meeting & Exhibition Supplemental Proceedings, pp 1575 -1584, Springer nature link, 7th February 2024
Authors: A. R. Anilchandra, B. Bharath, N. V. Sreekanth, J. Sharanabasavaraja, T. S. Srivatsan & C. M. Manjunatha,
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92.01-02-2024Development of Equal Proportional YSZ+ Al2O3 Thermal Barrier Coating and Efect of Coating Thickness on the Corrosion Behaviour on Cast Iron Substrate
Authors: Haridasa Nayak1 · Shanthala Kollur2 · K. Prasad3 · Suresh Erannagari4 · C. Durga Prasad2 · N. Nagabhushana5
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93.31-01-2024STUDY ON NANO SIZED Al2O3 AND Al2O3-SiC ON MECHANICAL, WEAR AND FRACTURE SURFACE OF Al7075 COMPOSITES FOR SOIL ANCHORING APPLICATIONS, Materials Physics and Mechanics, 51 (6), pp. 24-41.
Authors: M RAVIKUMAR, RAUDRA NAIK, BR VINOD, KY CHETHANA, YS RAMMOHAN
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94.31-01-2024Study on nanosized Al2O3 and Al2O3-SiC on mechanical, wear and fracture surface of Al7075 composites for soil anchoring applications. Materials Physics and Mechanics. 2023;51(6): 24-41. DOI: 10.18149/MPM.5162023_3.
Authors: M Ravikumar, Rudranaik, BR Vinod, KY Chethana, YS Rammohan
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95.28-01-2024Experimental and Numerical Evaluation of In?plane Tensile Mode Stress Intensity Factor for Edge Crack Using Empirical Formulation of Displacement Extrapolation Method
Authors: Syed Jabiulla1,2 · L. J. Kirthan1 · R. Girish Kumar1 · Ramakrishna Hegde1 · Mahantesh M. Math1 · V. A. Girisha1 · Suresh Erannagari3
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96.01-01-2024Optimization of finger seal pad design for reducing the leakage between the high-pressure and low-pressure region, published in the Jurnal Tribologi with vol. no 41, Page No.68-80.2024.
Authors: P Rajesh,J Sharana Basavaraja
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97.08-12-2023Future of Multifunctional/Multigrade Materials – A Review, Journal of Mines, Metals and Fuels 71(12): 2455-2459; 2023, ISSN : 0022-2755
Authors: V.Bharathi, B.R.Ramji,G.Shashikumar
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98.07-12-2023Experimental Studies on Performance of Air Foil Thrust Bearing Load Carrying Capabilities Considering Different Foil Materials
Authors: Ravikumar R N1,a) *, Vardhaman S.Mudakappanavar2,b) ,Tataram K Chavan3,c)Rathanraj K J4,d)
99.07-12-2023Experimental Studies on Performance of Air Foil Thrust Bearing Load Carrying Capabilities Considering Different Foil Materials. AIP Conference Proceedings, 2023, 2399(1), 030023.
Authors: R N Ravikumar, Vardhaman S. Mudakappanavar, Tataram K. Chavan and K J Ratanraj
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100.01-12-2023STUDY ON MECHANICAL AND MACHINABILITY CHARACTERISTICS OF N-Al2O3/SiC-REINFORCED Al7075 COMPOSITE BY DESIGN OF EXPERIMENT TECHNIQUE, Multiscale and Multidisciplinary Modeling, Experiments and Design, 6 (4), pp. 747-760.
Authors: M RAVIKUMAR, R SURESH
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