Resources

Research Activities

• Functionally graded materials with high mechanical strength and high abrasive wear resistance properties are developed by reinforcing the hard reinforcements through the centrifugal casting process.
• The attainment of desired property in the selective region of composite is achieved by single step centrifugal casting process and therefore this process becomes very cost effective.
• These FGMs can be effectively utilized for the applications where light weight, better mechanical properties and high wear resistance are very essential.
• The FGMs can be used as the thermal barriers in structures of aerospace applications, wear-resistant linings for handling large heavy abrasive ore particles, cylinder blocks, cylinder liners and brake disc.
• Copper FGMs can be effectively used in bearings and bushes applications where wear becomes a major consideration

Associated Faculty Member: Dr. N. Radhika

Projects

• DST Grant: Development of Functionally-Graded Aluminium Metal Matrix Composites and to investigate the Mechanical and Tribological Properties
• DRDO Grant: Synthesis and Characterization of Functionally Graded Copper Metal Matrix Composites
• ARDB Grant: Processing and Characterization of Heat Treated Functionally Graded (A359) Aluminium Composites for Aerospace Applications

Facilities

Academic Programs

Publications: 20 International Journal Papers

Health monitoring of machines –Predictive Analytics approach

• Need to increase reliability
• Improve the quality of the job
• Reduce the maintenance cost
• Avoid catastrophic damages

People

• Intelligent fault diagnosis of rotating machinery.
• Extraction of information from the machine using multi sensor fusion techniques.
• Machining process monitoring and control.
• Tool condition monitoring in high speed precision milling process
• Prediction of surface roughness in the workpiece.
• Grinding wheel condition monitoring
• Development of hardware unit for process monitoring and fault diagnosis.
• Machinability studies on hard materials such as Titanium, Inconel, etc.
• Prediction of residual stress in the machined component
• Online welding quality control using signature analysis.
• Identification of welding defect using image processing and machine learning techniques.

Projects
Five funded projects have been completed for the worth of Rs 75 lakhs

• Predictive Analytics in Welding
• Predictive Analytics in Gear Box Fault Diagnosis
• Automated Fault Diagnosis of Rotating Machines
• Process Monitoring in High Speed Machining of Titanium Alloy – Ultra Precision High Speed Machining Center
• Process Monitoring in High Speed Machining of Titanium Alloy – High Speed Machining of Titanium Alloy

Facilities

1. Machine Fault Simulator
2. Gearbox Test-rig
3. AE sensor (Physical Acoustics) with data analysis software
4. Vibration signal analyzer
5. Triaxial Accelerometer
   1. Microphone
   2. Impulse Hammer
   3. Vibration shaker with data acquisition system :
   4. Residual stress measurement set up

Academic Programs
Course offered in BTech Mechanical Engineering

Condition Monitoring and Diagnostic Maintenance.

Course offered in MTech Engineering Design

• Engineering Design Lab-I (Machine Condition Monitoring Lab)
• Machine Condition Monitoring
• Design Automation with IoT

Publications
About 50 research papers have been published in scopus indexed journal

Products
Developed low cost real time monitoring system for early fault detection using Predictive Analytics

Collaborators

• ISRO: VSSC
• DRDO: ARDB/CVRDE/GTRE
• Godrej Aerospace
• BHEL: WRI

The Department of Mechanical Engineering at Amrita Vishwa Vidyapeetham is run by a mission with a clear vision to provide quality education, train professionals of the highest calibre and work in close coordination with the industries in terms of research and development activities. As part of its commitment to active research and development, Amrita Automotive Research & Technology Centre (AARTC) is set up at its headquarters at Coimbatore for research in the Mobility domain. The centre is set up in collaboration with Automotive Test Systems (ATS), India.

Read More

The Amrita- Robert Bosch Automotive Electronics Laboratory Lab was inaugurated and established at the Coimbatore campus of Amrita Vishwa Vidyapeetham on November 20, 2014. The lab supports the work of about 200 students pursuing their degree in engineering disciplines, viz., Electronics and Communication Engineering, Electrical and Electronics Engineering, Mechanical Engineering, Automotive Engineering, Automotive Electronics and Electronics & Instrumentation Engineering.

The state-of-the-art laboratory facility is part of the Department of Mechanical Engineering at the campus. The laboratory functions under the supervision by Dr. Thirumalini S., Professor and Chairperson at the department of Mechanical Engineering, Amrita School of Engineering.

From its inception, this laboratory fosters inter-disciplinary research, thereby helping the students and researchers to understand and bridge the gap between academia and industry.

Robert Bosch Engineering and Business Solutions (RBEI) experts provide help to fine tune the research work so that they match with the real time problems faced by the automotive industry. Embedded System Development Kit powered with Freescale processor with sensors and actuators provides an actual ECU environment for the experiments conducted here in the laboratory.

This free scale kit customized with all the advanced features that are necessary for any Automotive Embedded Software Development. The kit has LIN, CAN, SPI, GPIO Interfaces and is built on TWR-K40D100M Free scale Tower Board.

Projects

• Fuel injection control in a Reactivity Controlled Compression Ignition (RCCI) for improving the performance and emission.
• GPIO configuration for reading the controlling sensors and actuators.
• Timer configuration for synchronizing the channels.
• ADC AND DAC configuration for analogue signal processing
• PWM (Pulse width modulation configuration for speed control of motors

Faculty Associated with the Lab: Prof. M. Prasad, Dr. S. Srihari, Prof. D. Senthilkumar, Dr. Mohanraj

Publications
V. Charitha, S. Thirumalini*, M. Prasad, S. Srihari, Investigation on performance and emissions of RCCI dual fuel combustion on diesel – bio diesel in a light duty engine, Renewable Energy, Volume 134, April 2019, Pages 1081-1088

The combustion research lab focuses on providing solutions to global challenges arising due to the combustion of fuels. The research work carried out in the lab includes fundamental research in laminar premixed flames like LBV measurement of hydrocarbon hydrogen fuels using heat flux method and diverging channel method. The lab also focuses on the combustion modelling in different applications.

People

Faculty: Dr. V. Ratna Kishore

Research

The combustion research lab focuses on fundamentals research in laminar premixed flames and combustion modelling. The major experimental setups developed in this lab are listed below.

1. Diverging Channel Experimental Setup

The diverging channel experimental method is developed for the measurement of burning velocity of various gaseous fuels at elevated temperatures.

2. Heat Flux Method Setup 

Heat flux method is a direct method for determining laminar burning velocity. This measurement technique uses a nearly flat flame anchored over the burner top.

3. Experimental Setup for Household Burners 

Experimental setup was developed to understand the flame stability of household burners operated with LPG/H2/air mixtures.

4. Combustion Modeling 

Numerical modeling group in the lab undertakes research projects relating to clean energy, micro combustors and flame zone modelling. Some of our current research projects include:

• Transforming Global Health through Computational Cook Stove Design in India, This project was funded by Royal Academy of Engineers under UK Newton Fellowship in collaboration with imperial College London and IIT Madras. Read more
• Numerical Modelling of the flame zone in micro combustors.
• Numerical Modelling of Tip Opening phenomena in hydrocarbon-hydrogen Bunsen flames.

Projects

Project Title: Measurement of burning velocities of hydrocarbon hydrogen mixtures and application to premixed laminar burner design.

Funding Agency: DST

PI: Ratna Kishore Velamati, Department of Mechanical Engieering, Amrita Vishwa Vidyapeetham, Amrita Nagar, Coimbatore – 641112

Facilities

Publications

1. Varghese R. J, Kishore V. R., Akram M., Yoon Y., Kumar S., Burning velocities of DME(dimethyl ether)-air premixed flames at elevated temperatures, Energy, 2017, 126, 34-41.
2. Aravind B., Raghuram G. K. S., Kishore V. R., Kumar S., Compact design of planar stepped micro combustor for portable thermoelectric power generation, Energy Conversion and Management, 2018, 156: 224-234.
3. Edacheri Veetil J., Aravind B., Mohammad A., Kumar S., Velamati R. K., Effect of hole pattern on the structure of small scale perorated plate burner flames, Fuel, 2018; 216, 722-33.
4. Konnov A. A., Mohammad A., Kishore V. R., Kim N. I., Prathap C., Kumar S., A comprehensive review of measurements and data analysis of laminar burning velocities for various fuel+air mixtures. Progress in Energy and Combustion Science,. 2018, 68, 197-267.
5. Mohammed A. N., Jithin E. V., Dineshkumar L., Ratna Kishore V., Mohammad A., Tip Opening of Burner-Stabilized Flames, Energy and Fuels, 2018, 32(2), 2344-2354.
6. Khan A. R., Anbusaravanan S., Kalathi L., Velamati R., Prathap C., Investigation of dilution effect with N2/CO2 on laminar burning velocity of premixed methane/oxygen mixtures using freely expanding spherical flames, Fuel, 2017, 196, 225-232.
7. Kishore V. R., Minaev S., Akram M., Kumar S., Dynamics of premixed methane/air mixtures in a heated microchannel with different wall temperature gradients, RSC Advances, 2017, 7(4), 2066-2073.
8. Mohammed A. N., Juhany K. A., Kumar S., Kishore V. R., Mohammad A., Effects of CO2/N2 dilution on laminar burning velocity of stoichiometric DME-air mixture at elevated temperatures, Journal of Hazardous Materials, 2017, 333, 215-221.
9. Singh A. P., Kishore V. R., Yoon Y., Minaev S., Kumar S., Effect of Wall Thermal Boundary Conditions on Flame Dynamics of CH4-Air and H2-Air Mixtures in Straight Microtubes, Combustion Science and Technology, 2017, 189(1), 150-168.
10. Edacheri Veetil J., Rajith C. V., Velamati R. K., Numerical simulations of steady perforated-plate stabilized Syngas air pre-mixed flames, International Journal of Hydrogen Energy, 2016, 41(31), 13747-13757.
11. Hariharan V., Velamati R. K., Prathap C., Investigation on supersonic combustion of hydrogen with variation of combustor inlet conditions, International Journal of Hydrogen Energy, 2016, 41(13), 5833-5841.
12. Nair A., Velamati R. K., Kumar S., Effect OF CO2/N2 dilution on laminar burning velocity of liquid petroleum gas-air mixtures at elevated temperatures, Energy, 2016, 100,145-153.
13. Aravind B., Velamati R. K., Singh A. P., Yoon Y., Minaev S., Kumar S., Investigations on flame dynamics of premixed H2-air mixtures in microscale tubes, RSC Advances, 2016, 6(55), 50358-50367.
14. Nair A., Kishore V. R., Kumar S., Dynamics of Premixed Hydrogen-Air Flames in Microchannels with a Wall Temperature Gradient, Combustion Science and Technology, 2015, 187(10), 1620-1637.
15. Singh A. P., Ratnakishore V., Minaev S., Kumar S., Numerical investigations of unsteady flame propagation in stepped microtubes, RSC Advances, 2015, 5(122), 100879-100890.
16. Aravind B., Ratna Kishore V., Mohammad A., Combustion characteristics of the effect of hydrogen addition on LPG-air mixtures, International Journal of Hydrogen Energy, 2015, 40(46), 16605-16617.
17. Lalith M. K., Dinesh A., Unnikrishnan S., Radhakrishnan A., Srihari S., Ratna Kishore V., Modeling of homogeneous mixture formation and combustion in GDI engine with negative valve overlap, ISRN Mechanical Engineering, 2013, 2013.
18. Jithin E. V., Kishore V. R., Varghese R. J., Three-dimensional simulations of steady perforated-plate stabilized propane-air premixed flames, Energy and Fuels, 2014, 28(8), 5415-5425.
19. Ratna Kishore V., Muchahary R., Ray A., Ravi M. R., Adiabatic burning velocity of H2/O2 mixtures diluted with CO2/N2/Ar, International Journal of Hydrogen Energy, 2009, 34(19), 8378-8388.
20. Ratna Kishore V., Ravi M. R., Ray A., Adiabatic burning velocity and cellular flame characteristics of H2-CO-CO2-air mixtures, Combustion and Flame, 2011, 158(11), 2149-2164.
21. Akram M., Kishore V. R., Kumar S., Laminar burning velocity of propane/CO2/N2-air mixtures at elevated temperatures, Energy and Fuels, 2012, 26(9), 5509-5518.
22. Ratna Kishore V., Duhan N., Ravi M. R., Ray A., Measurement of adiabatic burning velocity in natural gas-like mixtures, Experimental Thermal and Fluid Science, 2008, 33(1), 10-16.

Collaborators

1. Prof. Sudarshan Kumar (IITB)
2. Dr. Bhupendra Khandelwal (University of Sheffield)
3. Prof. Subhah Chander (NIT Jalander)
4. Prof. M. R. Ravi (IITD)
5. Dr. C. Prathap (IIST, Trivandrum)
6. Dr. P. Parthasarathy (NIT Surathkal)

The simulation lab is located inside and a part of the CAD/CAM lab in the main building. The lab has 15 high end computers (HP-64 bit systems, 8 GB RAM, i5 2500@ 3.3 GHz) with LAN connection. The software available are ANSYS, FLUENT, ABAQUS, COMSOL Multiphysics, ARENA, MATLAB and ADAMS. The lab is used by students to perform numerical simulations of structures subjected to mechanical, thermal, fluid, electrical, electromagnetic loads/fields. The lab serves the computational and simulation needs of the UG, PG and PhD students working in various fields of engineering. Submissions to the central computing facility (HPC) can be made from the simulation lab.

• Induction Furnace
• High Vacuum Furnace
• Multipurpose Heat Treatment Furnace