Mechanical Engineering

• G S Sanyal Award for Faculty Excellence
• GYTI 2016 appreciation

Journal
• Influence of SiC interlayer on mechanical and electrical joint characteristics of Cu-Al-Cu sandwich spot welds obtained using a new friction processing technique by Maity D., Racherla V. Journal of Materials Processing Technology 337 118737- (2025)
• Detecting and classifying multiple track defects using clustering algorithm by Vishwakarma A., Dasgupta A. , Racherla V. Engineering Structures 334 120197- (2025)
• Melting phenomenon in Cu-Al joining using a novel friction processing technique: A molecular dynamics study by Maity D., Jha R.K., Mandal S., Racherla V. Materials Today Communications 42 111354- (2025)
• Improvement in Mechanical and Corrosion Properties of Laser and electron Beam Welded AISI 304 Stainless Steel Joints by Laser Shock Peening by Chattopadhyay A., Sarkar S., Muvvala G., Ramadas H., Racherla V., Nath A.K. Lasers in Manufacturing and Materials Processing 11 946-983 (2024)
• Improving surface finish and wear resistance of electroless nickel plating using flexible abrasive tool by Kumar M., Sidpara A. M., Racherla V. Wear 546-547 205326- (2024)
• Detection of Rail Fastener Assembly Defects Using Axle-Box Acceleration by Vishwakarma A., Singh . K., Racherla V. , Dasgupta A. Journal of Vibration Engineering & Technologies 1-21 (2024)
• Investigation of derailment and wheel wear in a BEML metro coach under different operating conditions by Singh S.K., Das A.K., Singh S.R., Racherla V. Journal of the Brazilian Society of Mechanical Sciences and Engineering 46 - (2024)
• Analytical estimates for deformation behavior of fluid-filled elastomers with random microstructures by Singh V., Racherla V. International Journal of Non-Linear Mechanics 159 1-10 (2024)
• Delamination free forming of novel high interface strength metal-polymer laminates by Naik R.K., Panda S.K., Racherla V. Thin-Walled Structures 205 112416- (2024)
• Effect of SiC interlayer on microstructure and joint strength of Cu-Al welds obtained using a new friction processing method by Maity D., Racherla V. CIRP Journal of Manufacturing Science and Technology 52 73-85 (2024)
• Numerical and experimental investigation into tool-workpiece interaction in flexible abrasive tool finishing by Kumar M., Kumar G., Sidpara A., Racherla V. Journal of Manufacturing Processes 123 28-44 (2024)
• Effect of suspension parameters on dynamics of a metro coach: a parametric study by Singh S. K., Vishwakarama A. , Dasgupta A. , Racherla V. Journal of Mechanical Science and Technology 37 2741-2753 (2023)
• Finishing of OFHC copper using fluid filled open-cell porous flexible abrasive impregnated tools by Kumar M., Sidpara A. M., Racherla V. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 237 1086-1099 (2023)
• Finishing performance of polyurethane-based flexible tools fabricated using solvent casting and particulate leaching method by Kumar M., Sidpara A.M., Racherla V. Journal of Manufacturing Processes 90 166-179 (2023)
• Prediction of rail-wheel contact parameters for a metro coach using machine learning by Singh S. K., Das A. K., Singh S. R., Racherla V. Expert Systems with Applications 215 119343- (2023)
• Design optimization of high interface strength metal polymer metal sandwich panels by Naik R. K., Das A. K., Mahale P. R., Panda S. K., Racherla V. Composites Part A: Applied Science and Manufacturing 171 107544- (2023)
• A new friction processing method for welding of dissimilar metals by Maity D., Racherla V. Materials Today Communications 35 106095- (2023)
• Real-time temperature monitoring of weld interface using a digital twin approach by Maity D., R P. , M M. , Racherla V. Measurement 219 113278- (2023)
• Estimating coach-suspension parameters through stop braking: analytical modeling and validation by Singh S. K., Singh S. R., Racherla V. Multibody System Dynamics 60 499-517 (2023)
• Semi-analytical estimates for overall response of porous elastomer filled with power-law fluid by Singh V., Racherla V. International Journal of Non-Linear Mechanics 148 - (2022)
• Prediction of rail-wheel contact parameters for a metro coach using machine learning by Singh S.K., Das A.K., Singh S.R., Racherla V. Expert Systems with Applications 215 - (2022)
• Failure analysis of metal-polymer-metal sandwich panels with wire mesh interlayers: Finite element modeling and experimental validation by Naik R.K., Panda S.K., Racherla V. Composite Structures 280 114813- (2022)
• Finishing of OFHC copper using fluid filled open-cell porous flexible abrasive impregnated tools by Kumar M., Sidpara A. M., Racherla V. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 237 1086-1099 (2022)
• Finite element modeling of railway wheel gauge change during braking: Effect of lateral shift of brake block by Abenesh K. S., Vakkalagadda M. R., Racherla V. , Vineesh K. P. Materials Today: Proceedings 56 1447-1451 (2022)
• Microstructure, mechanical, and corrosion properties of electron beam-welded commercially pure titanium after laser shock peening by Chattopadhyay A., Muvvala G., Sarkar S., Racherla V., Nath A.K. International Journal of Advanced Manufacturing Technology 118 343-364 (2022)
• Mitigation of cracks in laser welding of titanium and stainless steel by in-situ nickel interlayer deposition by Chattopadhyay A., Muvvala G. , Sarkar S. , Racherla V. , Nath A. K. Journal of Materials Processing Technology 300 117403- (2022)
• Surface finishing of aluminium 6061 using fabricated flexible abrasive tool by Kumar M., Sidpara A.M., Racherla V. Materials Today Communications 33 - (2022)
• Gauge widening failures of wagon wheels in Indian Railways: Finite element modeling and observed statistics by Sundareswaran S., Vakkalagadda M.R.K., Racherla V., Senthil Kumar A., Vineesh K.P. Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 237 407-415 (2022)
• Deformation behavior of fluid-filled porous elastomers: Analytical estimates and validation by Singh V., Racherla V. Journal of the Mechanics and Physics of Solids 163 104835- (2022)
• Analysis of Tool Wear and Counter Surface Roughness in the Flexible Abrasive Tool Finishing by Kumar M., Sidpara A. M., Racherla V. lubricants 10 316- (2022)
• Fabrication of copper foam using friction processing by Sharma V.M., Pal S.K., Racherla V. Manufacturing Letters 29 61-64 (2021)
• Effect of tool traverse speed on fabrication of open-cell copper foam using friction processing by Sharma V.M., Pal S.K., Racherla V. International Journal of Advanced Manufacturing Technology 116 2137-2147 (2021)
• A new sintering method for fabrication of open-cell metal foam parts by Sharma V. M., Pal S. K., Racherla V. Materials and Manufacturing Processes 35 1717-1726 (2020)
• Effect of laser shock peening on microstructural, mechanical and corrosion properties of laser beam welded commercially pure titanium by Chattopadhyay A., Gopinath M. , Sarkar S. , Racherla V. , Nath A. K. Optics & Laser Technology 133 106527- (2020)
• Effect of periodic wheel tread reprofiling on wheel gauge evolution in the wheelsets of tread-braked coaches: Finite element modeling and field observations. by K P V., Vakkalagadda M. , Dev M. , Rao B. , Racherla V. Journal of Rail and Rapid Transport 234 678-686 (2019)
• Friction sintering of brass powder by Sharma V. M., Racherla V. , Pal S. K. Advances in Materials and Processing Technologies 5 95-103 (2019)
• Thermo-mechanical finite element study on deformation mechanics during radial scan line laser forming of a bowl shaped surface out of a thin sheet by Chakraborty S. S., Racherla V. , Nath A. K. Journal of Manufacturing Processes 31 593-604 (2018)
• Microstructure-property relation and evolution in friction stir welding of naturally aged 6063 aluminium alloy by Imam M., Racherla V. , Biswas K. , Fujii H. , Chitapenta V. , Sun Y. , Marisada Y. The International Journal of Advanced Manufacturing Technology 91 1753-1769 (2017)
• Gauge widening of passenger coach wheel sets in Indian Railways: Observed statistics and failure analysis by Vineesh K. P., Vakkalagadda M. , Dev M. , Rao B. , Racherla V. , - -. Engineering Failure Analysis 71 105-119 (2017)
• Non-uniformity in braking in coaching and freight stock in Indian Railways and associated causes by Kp V., Vakkalagadda R. , Tripathi A. , Mishra A. , Racherla V. Engineering Failure Analysis 59 493-508 (2016)
• Locomotive wheel failure from gauge widening/condemning: Effect of wheel profile, brake block type, and braking conditions by Vakkalagadda R., Kp V. , Mishra A. , Racherla V. Engineering Failure Analysis 59 1-16 (2016)
• Comparative study of air plasma sprayed and high velocity oxy-fuel sprayed nanostructured WC- 17wt%Co coatings by Bolleddu V., Racherla V. , Bandyopadhyay P. P. Int. J Adv. Mfg. Technol. 84 1601-1613 (2016)
• Locomotive wheel failure from gauge widening/condemning: Finite element modeling and identification of underlying mechanism by Vakkalagadda R., Kp V. , Mishra A. , Racherla V. Engineering Failure Analysis 57 143-155 (2015)
• Modification of bent angle of mechanically formed stainless steel sheets by laser forming by Chakraborty S., More H. , Racherla V. , Nath A. K. Journal of Materials Processing Technology 222 128-141 (2015)
• Investigation on laser forming of stainless steel sheets under coupling mechanism by Chakraborty S., Maji K. , Racherla V. , Nath A. K. Optics & Laser Technology 71 29-44 (2015)
• Estimation of railway wheel running temperatures using a hybrid approach by Vakkalagadda M., Kp V. , Racherla V. Wear 328 537-551 (2015)
• Microstructural and tribological characterization of air plasma sprayed nanostructured alumina titania coatings deposited with nitrogen and argon as primary plasma gases by Bolleddu V., Racherla V. , Bandyopadhyay P. P. Mater. & Design. 59 252-263 (2014)
• Microstructural Characterization of Plasma Sprayed Conventional and Nanostructured Coatings with Nitrogen as Primary Plasma Gas by Bolleddu V., Racherla V. , Bandyopadhyay P. P. Surf. Coating Technol. 235 424-432 (2013)
• Mechanical Properties of Conventional and Nanostructured Plasma Sprayed Alumina Coatings by Bandyopadhyay P. P., Chicot D. , Venkateshwarlu B. , Racherla V. , Decoopman X. , Lesage J. Mechanics of Materials 53 4872-4880 (2012)
Patent
• An evaporative cooling arrangement and a water absorbent coating composition by Racherla V. - (2024)
• A system and method for diffusion bonding of dissimilar metals by friction processing by Racherla V., Maity D. , Mala M. , Radhakrishnan P. - (2024)
• DUAL PORT ANTENNA SYSTEM FOR COGNITIVE RADIO (CR) APPLICATIONS. by Chatterjee J., Mohan A. , Racherla V. , Dixit V. - (2024)
• Metal sandwich panels by Racherla V., Panda S. K., Naik R. K. - (2023)
• Rapid differetial cooling for crack mitigation in laser welding of dissimilar metals of different thermal expansion coefficients by Nath A. K., Racherla V. , Muvvala G. , Chattopadhyay A. - (2023)
• Spacer for use in taper roller or angular contact bearings. by Racherla V. - (2023)
• A system for solid-state sintering of hollow metallic cylindrical components and a method of such sintering by Racherla V., Sharma V. M., Pal S. K. - (2020)
• A system for solid state sintering of hollow metallic cylindrical components and a method of such sintering (Filed Ref No: 202031006307, Filing date: February 13, 2020). by Racherla V., Sharma V. M., Pal S. K. - (2020)
• Reconfigurable mechanical testing machine capable of applying monotonic or cyclic bi-axial, tension-torsion and compression-torsion loadings by Prajapati K. K., Racherla V. - (2020)
• Six degrees of freedom rail-wheel contact simulator with speed and torque control using motor-generator set up with common DC bus for efficient operation by Koppisetti S. P., Prajapati K. K., Racherla V. - (2020)
• Add-on Kit for Doing Cost Effective, Energy Efficient, Rapid, Solid-State Friction Sintering on Vertical Milling/Drilling/Friction Stir Welding Machines (Filed Ref No: 201731037839). by Racherla V., Sharma V. M., Pal S. K. - (2017)
Conferences
• Detection and assessment of rail discontinuities using a multibody vehicle-track model by Vishwakarma A., Dasgupta A., Racherla V. Journal of Physics: Conference Series 2647 - (2024)
• Improving the surface finishing process by modification of the flexible abrasive tool structure by Kumar M., Sidpara A. M., Racherla V. COPEN-12 12th International Conference on Precision, Micro, Meso, and Nano Engineering - (2022)
• Effect of track irregularities on vehicle dynamics of a metro coach by Singh S.K., Racherla V., Singh S.R. "Advances in Acoustics, Noise and Vibration - 2021" Proceedings of the 27th International Congress on Sound and Vibration, ICSV 2021 - (2021)
• Behaviour of Metro Coach on Newly Built Track in Kolkata by Danawe H.G., Singh S.K., Racherla V., Singh S.R., Prasad A. Joint Rail Conference V001T12A00- (2020)
• Thermal Management of Battery Pack for Hybrid Vehicles Using PCM by Pant N., Racherla V. IOP Conference Series: Materials Science and Engineering 653 - (2019)
• Fabrication of copper foam plate using friction sintering by Sharma V.M., Racherla V., Pal S.K. ASME 2019 14th International Manufacturing Science and Engineering Conference, MSEC 2019 2 - (2019)
• Fabrication of copper foam plate using friction sintering by Sharma V., Racherla V. , Pal S. K. ASME 2019 14th International Manufacturing Science and Engineering Conference - (2019)
• Fabrication of large copper foam plates using friction sintering: Effect of tool traverse speed by Sharma V. M., Racherla V. , Pal S. K. 40th International MATADOR Conference on Advanced Manufacturing - (2019)
• Ride index for metro coaches by Singh S. K., Danawe H. G., Racherla V. , Singh S. R., Prasad A. International Mechanical Engineering Congress and Exposition - (2019)
• Ride index for metro coaches: Experimental evaluation and vehicle dynamics results by Singh S.K., Danawe H.G., Racherla V., Singh S.R., Prasad A. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) 4 - (2019)
• Friction sintering of copper powder using a new rapid, cost effective and energy efficient process by Sharma V.M., Maity D., Racherla V., Pal S.K. ASME 2018 13th International Manufacturing Science and Engineering Conference, MSEC 2018 4 - (2018)

Principal Investigator

• DEMONSTRATION OF AND ADVICE ON FINITE ELEMENT ANALYSIS OF ELASTIC-PLASTIC STRUCTURES
• DEMONSTRATION OF FINITE ELEMENT ANALYSES TOWARDS DESIGN OF CRADLES
• Support and training on Trommel Design
• Application of finite element and other analytical methods for failure analyses of roller bearings
• Training on rolling mill process simulation
• OPTIMAL DESIGN OF HUMAN MUSCLE LIKE ELECTROACTIVE POLYMER ACTUATORS
• OPTIMAL DESIGN OF TOUGH WEAR RESISTANT NANOSTRUCTURED COATINGS
• Design and Analyses of Roller Entry Guides
• Creep and warping (including gauge widening) analysis of hot-running loco wheels towards development of design guidelines against gauge widening
• Stability and Structural Analysis of 180 KVA Converter
• Failure Analysis of Alternator Shaft Key and Bearings
• Simulation of sheet rolling to improve uniformity in through thickness properties of rolled sheets
• Research on underwater robotics
• Development of Composite Integral Armour of Futuristic Infantry Combat Vehicle
• Static and Fatigue Analysis of Bogie Frame
• Design & Fabrication of an Electric Rickshaw with Enhanced Safety, Performance and Ride Comfort
• Design of High Power Rated Battery Packs for Electric Vehicles with Effective Thermal and Stress Management Strategies for Enhanced Safety and Performance (ICG_2017)
• Design Analysis of 30 kW Permanent Magnet Alternator
• Design and Development of Aerodynamic Body Panels and Light-Weight Structures for Next Generation Electric Vehicles
• Design and Development of an Electric Pickup Truck with Emphasis on Passively Cooled, Balanced Battery Pack Design for Maximizing Range and Battery Pack Life
• Bogie Design, Vehicle Dynamics & Rail - Wheel Traction Control Towards Improved Safety and Comfort and Reduction in Running Costs for Metro Coaches (UAY_I_IITKGP_004)
• Conducting Longitudinal Restrain Test of Railway Fastening System
• Design Verification for Yoke and Roller for Gangway
• Uchhatar Avishkar Yojana
• Rural Technology Action Group Eastern India [RuTAG-E] Phase-2
• Enhancement of Deshla 2.0
• Enhancement of Battery Related Technologies
• Development of Automated Gearbox for Deshla
• Experimental Characterisation of Double Drum Winch
• Design and Analysis of a Lightweight Modular Weigh Bridge

Co-Principal Investigator

• Aerodynamic design of traction rolling stock with speed potentials of 250 km/h upgradeable up to 350 km/h
• Centre of Excellence in robotics
• Development of 3D Modelling, Tolerance Analysis & Dynamic & Kinetic Analysis of Newly Developed 7.62 mm Assault Rifle Ghaatak by Rifle Factory Ishapore
• Development of Indigenous Low-cost Soil and Sawdust Based Water Filters for Water Treatment and its Demonstration in Selected NSS Adopted Villages (ICG_2017)
• Indigenous Development of Online Process Monitoring of Laser Surface Hardening, Cladding and Additive Manufacturing and Studies on Dynamic Mechanical Behavior of Manufactured Parts (Project No.: 6917)
• Manufacturing of Shells for Field Guns with Improved Design and Performance (Project ID.:6596)
• Peta-Scale Computations of Geophysical Flows with Bi-directional Thermal Gradients
• Plant on a chip (SGDRI)
• Rural Sector Field-Scale Application of Ultra Low-Cost Clay and Sawdust Based Water Purification Units (SAP17_IITKGP_15)
• Squa-Tool
• Training session on project deliverable software SigDATE