academic profile of dr. sachin waigaonkar 1. …bits-pilani.ac.in/uploads/cv_sdw.pdf · raghav...
Post on 17-May-2018
221 Views
Preview:
TRANSCRIPT
ACADEMIC PROFILE OF Dr. SACHIN WAIGAONKAR
1. PERSONAL
2. EDUCATIONAL
Degree
University/ Institution
Year Subjects/ Area of
Specialization
%of Marks/ Division/Grade
Remarks
B.E.(MECH) Dr. BAMU A’bad
1998 Mechanical 72 Distinction
M.E.(Prod) Pune University, COEP
2000 Production Engg. 69 First Div
Ph.D BITS Pilani 2010 Polymer and Composite Materials
NA NA
3. PRESENT EMPLOYMENT DETAILS
Designation Organization From To Roles and responsibilities Assistant Professor
BITS Pilani Goa campus
1/6/2011
Till Date
Teaching UG and WILP courses in Mechanical engineering, Research in Polymer and Composite Materials
Name WAIGAONKAR SACHIN DAMODHARRAO
Address for Correspondence Department Of Mechanical Engg.
BITS Pilani K K Birla Goa Campus
Zuarinagar Goa,India-403726
Email sdw@goa.bits-pilani.ac.in
Phone 91-832-2580118
Mobile 91-9422388190
4. TEACHING EXPERIENCE
Duration Organization Area(s) 16/7/2004 to Till Date (9 years) BITS Pilani Goa
Campus Manufacturing Engineering
1/7/2000 to 15/7/2004 (4 years 15 days)
LTCOE, Mumbai Mechanical Engineering
5. COURSES TAUGHT First Degree (UG Level):
• Production Techniques-I (Revised Curriculum)
• Production Techniques ( Old Curriculum)
• Quality Control, Assurance and Reliability
• Workshop Practice
• Thermodynamics
Higher Degree (PG Level):
• Material Technology and Testing
• Product Design
Work Integrated Learning Programme (WILP):
• Flexible Manufacturing System ( On line Lecture Series)
6. CURRENT AREAS OF RESEARCH: Rotational Moulding of Thermoplastics
with nanoscale composites, Structure-property-Processibility studies of Polymeric and
Composite Materials, Manufacturing Engineering, Design and Analysis of Experiments.
7. RESEARCH PROJECTS
7.1. Experimental Investigations of Rotational Moulding Process Using Nano-Scale
Fumed Silica Composites.
Funding Agency: Department of Science and Technology (DST), Govt. of India.
Period: 2012-2015.
Grant Sanctioned: INR 17 Lakhs
7.2. Rotational Moulding of LLDPE using Nano scale Fumed Silica Composites.
Funding Agency: MHRD / UGC (Start up Grant).
Period: 2012-2015.
Grant Sanctioned: INR 6 Lakhs.
7.3. FIST Project under the thrust area of Polymer and Composite Material
Processing.
Funding Agency: DST/BITS Pilani Goa Campus.
Period: 2012-2017.
Grant Sanctioned: INR 18 Lakhs
7.4. Research Initiation Grant on Rotational Moulding of Plastics
Funding Agency: BITS Pilani Goa Campus.
Period: 2012-2014.
Grant Sanctioned: INR 2 Lakhs.
8. CONSULTANCY PROJECTS 8.1. Analysis of FRP Sectional Panel Tanks
Organization: BTCL Composites Goa
Period: 2 months (2013)
Amount: INR 50,000
Principle Investigator: Prof. BJC Babu
8.2. Thermo-structural Analysis of Sea Harrier Platform Organization: Indian Navy
Period: 6 months (2010)
Amount: INR 50,000
Principle Investigator: Prof. BJC Babu
9. PUBLISHED PAPERS IN JOURNALS 1. PL. Ramkumar, D.M. Kulkarni and Sachin D. Waigonkar (2013). Effect of Cycle Time
on Mechanical Properties of LLDPE during rotational moulding process. Journal of
Polymer Research (Accepted).
2. Raghav Bansal and Sachin Waigaokar (2012): Thermal Analysis of Rotational
Moulding Process: An Application to Multilayer Moulding, Journal of Manufacturing
Engineering, Vol.7 (3), pp 158-163.
3. Babu B.J.C., Waigaonkar S.D. and Rajput A. (2011): Experimental investigations and
optimization of processibility of sheet molding compound, Journal of Polymer
Engineering, Vol. 31 (2-3), 309-317.
4. Waigaonkar S.D., Babu B.J.C. and Rajput A. (2011): Six sigma DOE approach: a
case study of rotational moulding process, International journal of Six Sigma and
Competitive Advantage, Vol.6 (4), 256-277.
5. Waigaonkar S.D., Babu B.J.C. and Rajput A. (2011): Curing studies of unsaturated
polyester resin used in FRP products, Indian Journal of Engineering and Material
Sciences, Vol.18, pp.31-39.
6. Waigaonkar S.D., Babu B.J.C. and Rajput A. (2011): Parametric optimization to
enhance impact strength of rotationally molded products: A six sigma approach,
Journal of Manufacturing Technology Research, vol.3 (1-2).
7. Waigaonkar S.D., Babu B.J.C. and Durai Prabhakaran R.T. (2008): A new approach
of resin selection in rotational molding, Journal of Reinforced Plastics and
Composites, Vol. 27, pp. 1021 – 1037.
8. Waigaonkar S.D. and Babu B.J.C. (2008): Application of concurrent engineering for rotationally molded fuel tanks, Rotoworld (formerly Rotation), Vol.4 (4), pp.72-77.
10. PUBLISHED PAPERS IN NATIONAL AND INTERNATIONAL CONFERENCES
10.1 International Conference Held Abroad:
1. Waigaonkar S.D., Babu B.J.C. and Rajput A. (2011): Experimental
Investigations and Optimisation of Curing of Unsaturated Polyester Resin.
Composites-2011 organized by American Composites manufacturers Association
(ACMA), Ft. Lauderdale, Florida, USA, pp.55-61.
10.2 International Conference Held in India:
1. Sachin Waigaonkar and BJC Babu (2012): Compression Moulding Technique
for FRP fasteners and Sectional Panel Tanks. International Conference on Wind
Energy: Materials, Engineering and Policies, organized by Technical University
of Denmark (DTU) and BITS Pilani Hyderabad Campus pp.23-30.
2. Waigaonkar S.D., Babu B.J.C. and Rajput A. (2010): Investigating impact
strength of roto-molded products: a comparison of DOE with Shainin Variable Search Technique. Proceedings of 2nd International Conference on Polymer Processing and Characterization, Institute of Macromolecular Science and
Engineering Kerala, pp. 156-162.
3. Babu B.J.C., Waigaonkar S.D. and Rajput A.(2010): Experimental investigations
and optimization of processibility of glass fiber-polyester resin molding
compound, Proceedings of 2nd International Conference on Polymer Processing
and Characterization, Institute of Macromolecular Science and Engineering
Kerala, pp.60-66.
4. Waigaonkar S.D. and Babu B.J.C. (2008): DFX analysis of rotationally molded
fuel tanks, Proceedings of 2nd International and 23rd AIMTDR Conference, IIT
Madras, Chennai, pp. 1003-1008.
5. Waigaonkar S.D. and Babu B.J.C. (2007): Modeling of rotational molding
process using Shining Variable Search Technique, Proceedings of International
conference on Advancements in Mechanical Engineering (ICAME-2007), MIT
Manipal.
6. Waigaonkar S.D., Navale L.G. and Kajale S.R. (2000): Optimisation of Magnetic
abrasive Finishing Process, Proceedings of 19th AIMTDR Conference, IIT
Madras, Chennai, pp. 110-116.
10.3 National Conference
1. Raghav Bansal and Sachin Waigaokar (2012): Thermal Analysis of Rotational
Moulding Process: An Application to Multilayer Moulding, 3rd National Conference
on Recent Advances in Manufacturing, NIT Surat.
Note: The above conference paper has been accepted by Journal of
Manufacturing Engineering
11. IMPORTANT CONFERENCES/ WORKSHOPS ATTENDED
1. Future Composites Technology for Wind Mill Blades, IIT Delhi October 8-9, 2012.
2. Short term course on ‘Micromanufacturing’ at IIT Kanpur 2010
3. 4th Annual ARM SARD conference at Goa (Association of Rotational Moulders –South Asia Regional Development) 2007
4. 3rd Annual ARM SARD conference at Mumbai2006
5. Workshop on Industrial Automation at ISBT Goa, 2006
6. 7th National Convention of ISTE, Science Technology and Spirituality, 2003
12. AWARDS AND RECOGNITIONS
DST Travel Grant for Young Scientist to attend the conference in USA.
13. ADMINISTRATIVE EXPERIENCE
Designation Organization From To Roles and responsibilities
Nucleus
Member
Central
Workshop
BITS Pilani K K
Birla Goa Campus
2008 2013
Workshop equipments purchases,
maintenance, human resources
planning, Lab scheduling, etc.
Annexure-1
Major Projects Worked Upon (Related to Polymer and Composites Processing)
1. Study of Sheet Moulding Compounds for producing FRP fasteners.
In this project, we have produced fasteners (bolts and nut) made out of sheet
moulding compounds (SMC). Such fasteners can be extremely useful in corrosive
environments where conventional steel fasteners limit their applicability. Though
commercially pultruded fasteners are available, compression moulding was not
used to produce such components till date. It results in very short cycle times and a
near net shaped product. The subtasks to produce these fasteners included: • Preparation of SMC: SMC was prepared using Unsaturated Polyester (UP) resin
and Glass Fiber reinforcements along with other fillers and additives. Devices like
sigma mixer and rolling mill were used to ensure better impregnation of glass fibers
with the resin.
• Study of maturation quality of SMC: Extensive experimentation using Statistical
DOE techniques were employed to get optimal maturation quality (tack-free
condition) of SMC prepeg. Built simple testing devices in laboratory to assess the
maturation quality.
• Study of Curing of the resin: Curing of UP resin was also monitored and modeled
using DOE methods. Regression equations were established which were
subsequently used to optimise the process performance in terms of gel time and
peak exothermic temperature. This ensured optimal cycle time and product quality
(by preventing cracking of polymer).
After testing in corrosive environments, we have found that these fasteners gave
excellent results. They are being tested in field at surrounding chemical industries in Goa
region at present. This project was sponsored by Department of Science and technology
(DST), Govt. of India (SR/S3/ME/37/2005 dated 19/04/2007). The Components produced
and their X ray (showing Glass Fiber Orientation is shown in Fig. 1 and Fig. 2
Fig. 1 M14x2 FRP bolts produced Fig. 2 X ray of bolts to study fiber orientation
2. Rotational Moulding of LLDPE
Rotational moulding is a potential process used to produce hollow plastics products at
a low cost. It offers several advantages I terms of mechanical properties. We have
investigated this process and the major contribution towards this research is as
follows:
• The investigations for thermoplastics polymer processing have been carried out
for a typical rotational moulding process. For this purpose LLDPE was used as
material and the impact strength was selected as one of the quality measures of
the product. Six-sigma technique has been applied through the ‘Define, Measure,
Analyze, Improve and Control i.e. ‘DMAIC’ algorithm of six sigma. The oven
temperature, oven time, powder particle size and cooling media were selected as
model parameters. Applications of Design of Experiment (DOE) method for this
process revealed the non-linear effects of process variables on the impact
strength.
• The automobile industry is looking forward to rotational moulding on account of its
ability to produce complex hollow parts at a low cost. As an emerging application
of this process, a fuel tank was selected for a case study. Considering the
importance of appropriate resin selection for such products, a ‘Multiple Attribute
based Decision Making’ (MADM) selection procedure based on ‘Technique of
Order Preference by Similarity to Ideal Solution’ (TOPSIS) was explored to assist
the rotomoulder to select suitable resin from a long list. The selection was also
compared with other graphical methods of decision making.
• Concurrent engineering studies were carried out to compare and select the
appropriate materials for design of a rotationally moulded fuel tank. This method is
based simultaneous consideration of the several aspects of design commonly
identified as ‘DFX’. Along with the polymeric materials, the existing metal forming
process of making fuel tanks from cold drawn steel sheets was accounted for a
comprehensive analysis. The principles of graph theory were used to obtain each
‘DFX’ aspect, using a ‘Permanent function’ approach. The comparison of the
materials was done based on values of permanent functions.
• As a part of this study, Finite Element Analysis has been done to find the transient
temperature distribution in a Typical Rotational Moulding Process. A 1000 L
overhead water tank was taken for analysis. This tank is made up from LLDPE
material. The mould is modeled using PrO_E software which was subsequently
analysed in special software Rotosim. The temperature distribution within the
mould was predicted along with the thickness distribution of the polymer. Finally
conditions were predicted to obtain the optimal thickness. The simulation studies
have shown close agreement with the industrial findings at M/s GMI Zarahk
Moulderes Pvt. Ltd. Verna, Goa. Following figures shows the details of the
simulation studies performed.
Fig. 3 Simulation Environment for Process
Fig. 4 Transient Temperature Distribution in the Process
Fig. 5 Thickness Distribution of Polymer (LLDPE) in Tank
3. Analysis of FRP Sectional Panel Tanks
This project was carried out for BTCL Composites, Goa who manufacture FRP
sectional Panel tanks. These panels are made from GF/PE resin composites by
compression moulding process. The design thickness and stiffness features have been
simulated using Finite element Analysis using ANSYS 13.0. Singapore Standards SS 245:
1992 were used for this purpose. Different loading conditions like hydrostatic, wind and
seismic were considering during this design analysis. With this analysis, it is possible to
decide the thickness of panel and hence design the mould for compression moulding
process. It also assists to prevent the excessive deflection and failure of the panel tanks
under loading conditions. Fig. 6represents the meshed model of FRP panel while
deflection predicted under hydrostatic loading conditions for such panel is shown in
Fig. 7.
Fig. 6 Design of FRP sectional Panel tanks Fig. 7 Analysis of FRP sectional Panel tanks
Annexure-2
Experimental Facilities Created at BITS Pilani K K Birla Goa Campus
Following is the list of a few polymer processing and testing equipments to facilitate the
research work in this area:
1. Dynamic Mechanical Analyser (DMA) with Gas Cooling Accessory (GCA):
Make TA instruments, USA. As polymers are visco-elastic in nature, DMA is used
to investigate their dynamic mechanical properties. It is used to determine the
mechanical properties as a function of temperature, time and frequency. Herein the
samples are subjected to sinusoidal force which results in similar deformation. By
evaluating the course of deformation over time, the viscoelastic behavior materials
like storage modulus, loss modulus and loss factor (tan δ) can be calculated.
2. Melt Flow Indexer: Make Dynisco, USA. The Melt flow of the polymer blends is
determined as per ASTM-1238 using the MFI tester manufactured by
3. Lab scale single screw extruder with Torque Rheometer: To melt blend
polymers with proposed additives, masterbatches and investigate their torque
rheometric properties.
4. Lab Scale Rotational Moulding Machine: An electrically heated biaxial lab scale
rotational moulding machine to take trials of rotational mouldings.
5. Lab Scale Compression Moulding Press: A compression moulding press of 32 T
will be used to get the sheets of polymer and FRP composites.
6. Tensile Testing machine (0-10 KN): The tensile testing of the plastics and
composite samples cut using standard set of dies. Same machine can be used to
conduct the Flexural testing.
7. Impact Testing: Izod and Charpy impact testing of the specimens is done using
this machine.
8. HDT VICAT softening point: This is used to obtain the heat deflection
temperature and VICAT softening of the polymers.
Annexure-3
Significant Contributions and Achievements
1. Involved in laboratory developments like Central Workshop, Pneumatics,
Hydraulic Machines, etc. at BITS Pilani, K.K. Birla-Goa Campus.
2. As a part of ‘Production Techniques’ course at UG level, developed experimental set-
ups and plans for conducting practicals in CNC machining, non conventional
machining, pneumatics, alignment testing of machine tools, casting and plastic
processing. A laboratory manual was also prepared for the above.
3. Conducted a short term course on CNC programming at BITS Pilani, K.K. Birla-Goa
Campus.
4. Developed an experimental set-up for the DST project on Sheet Moulding
Compounds (SMC). It included the integration of hydraulic press (32 Ton capacity)
with the electro pneumatic actuators. The work included design and fabrication of dies
and a specially constructed softness indicator (produced in house) to monitor the
maturation quality of SMC. The other facility also included a sigma mixer (25 L) and a
two roll mill for proper impregnation of SMC.
5. Developed experimental set-up to study rotational moulding of plastics. It included a
lab scale electrically heated oven with different moulds and a dart impact testing
apparatus (produced in house).
6. Selected for the award of International Travel Support Scheme (IST) of DST (Young
Scientist) for presenting the paper in international conference viz. ‘Composites -2011’
organized by American Composites manufacturers Association (ACMA) at Ft.
Lauderdale Florida, USA during February2-4,2011.
7. Delivered a talk on ‘Design and Analysis of Experiments’ in workshop on
Research Methodologies at BITS Pilani, K.K Birla, Goa Campus.
8. Worked as Reviewer for Computational Material Science and International Journal of
Materials Engineering Innovation.
9. Working as member of Doctoral Advisory Committee (DAC) at Bits Pilani -K.K. Birla
Goa Campus and reviewed two Ph.D. theses as DAC member.
10. Involved in organisation of Indo-Russian Workshop on Tropical Problems in Solid
Mechanics at BITS Pilani, K.K Birla, Goa Campus.
11. Co-ordinated the Practice School activities of institute at Mishra Dhatu Nigam Ltd.
(MIDHANI), Hyderabad and Care Hospitals, Hyderabad.
12. Visited Grasim Industries and Grasim Chemicals Nagda, Madhya Pradesh to identify
the practice school projects for BITS Students and to make the practice school
program more effective. .
13. Worked as proctor for the on line admission test of BITS (BITSAT-2010).
14. Presently working as nucleus member of Central Workshop. Here the main activities
include recruiting and allotting technical staff in workshop as well as other labs,
scheduling maintenance activities for different machines, scheduling workshop for
different fabrication related activities, etc.
15. Worked as nucleus member of ‘Student Activity Center (SAC)’. Here the role included
the coordination of sports activities and monitoring the sport facilities of the institute.
16. Worked as panel member of syllabus revision committee (Manufacturing Engineering,
in particular) at YCCE, Nagpur.
17. Worked as a member of Educational Audit Team for the Educational Audit conducted
at Navy Children School, Vasco Goa.
(Dr. Sachin Waigaonkar)
top related