January 2020
Manuscript accepted for publication in Mechanics Based Design of Structures and Machines, impact factor 1.98: Rajendra K. Praharaj, N.Datta, "Dynamic response spectra of fractionally damped viscoelastic beams subjected to moving load".
IIT Kharagpur funding (INR 3 lacs) approved for the project "In house Horizontal-axis Wind Turbine(CAWT) suitable for power generation at low wind spreads: design, fabrication, assembly, testing".
February 2020
Manuscript accepted in OMAE2020, 39th International Conference on Ocean, Offshore & Arctic Engineering, Diplomat Beach Resort, Fort Lauderdale, Florida, June 28 – July 3, 2020.
R.K. Praharaj, N.Datta, "Application of Fractional Calculus in Modelling Viscoelastic Foundation of Ship Structures for Passive Vibration Control".
Vortex-induced Vibration (VIV) Oscillator generating electrical energy in the Circulation Channel, Dept of Ocean Engineering and Naval Architecture, IIT KGP. Credits : PhD Scholars Mr. Y. Omkar Venkata and Mr. Naveen Karri. For more info : https://youtu.be/x12KyRMoQwY.
March 2020
Team Vortex, comprising of IIT KGP PhD students Mr. Y. Omkar Venkata (OENA) and Mr. Naveen Karri (RM School of Engineering Entrepreneurship), wins the Silver Award of INR 2,50,000/- at the KPIT Sparkle 2020, Feb 29 - Mar 1, 2020 at Pimpri-Chinchwad College of Engineering (PPCOE). The work was on extraction of hydrokinetic energy in rivers/canals by enhancing vortex-induced vibrations about a bluff body.
News link : FB link :
Technical video links :
(2) https://www.youtube.com/watch?
Manuscript accepted for publication in Proceedings of 27th International Congress on Sound and Vibration (ICSV27) Prague, Czech Republic, 12 to 16 July 2020.
A.R. Krishnanunni, N.Datta, "A Simplified Procedure to Calculate the Natural Frequencies of a Small Wind Turbine Blade with Centrifugal Loads".
Manuscript accepted for publication in Proceedings of 27th International Congress on Sound and Vibration (ICSV27) Prague, Czech Republic, 12 to 16 July 2020.
A.R. Krishnanunni, N.Datta, "A Simplified Procedure to Calculate the Natural Frequencies of a Small Wind Turbine Blade with Centrifugal Loads".
Wind Turbine Blade Fabrication begins :
April 2020 (Lockdown)
Manuscript preparation begins : A.R. Krishnanunni, N.Datta, "Bi-directional flexural vibration of centrifugally-stiffened wind turbine blade modeled as a tapered twisted cantilever beam using semi-analytical approach : dynamic response to turbulent loads."
New article published in www.womensweb.in
https://www.womensweb.in/2020/04/what-your-daughter-in-law-is-not-how-to-be-a-21st-century-man-part-4-apr20wk2sr/
ARK : Athrey Ranjith Krishnanunni, DS : Diwakar Swaroop, HSC : Hrushikesh Suresh Chambhare, ND : Nabanita Datta
Lockdown announced : a new lifestyle begins!
April 2020 (Lockdown)
Manuscript preparation begins : A.R. Krishnanunni, N.Datta, "Bi-directional flexural vibration of centrifugally-stiffened wind turbine blade modeled as a tapered twisted cantilever beam using semi-analytical approach : dynamic response to turbulent loads."
New article published in www.womensweb.in
https://www.womensweb.in/2020/04/what-your-daughter-in-law-is-not-how-to-be-a-21st-century-man-part-4-apr20wk2sr/
Manuscript accepted for publication in Power 2020 Power Conference, Anaheim, California, USA, Aug 02-06, 2020 : Athrey R. Krishnanunni, N. Datta, Hrushikesh S. Chambhare, Diwakar Swaroop, “Basic Design and Blade Structural Analysis of a Small Horizontal-Axis Wind Turbine for Low Wind Speeds”. Special Thanks to Prof. Dhrubajyoti Sen, Prof. Prasun Jana, Prof. Chetan Mistry, Prof. Mohd. Rabius Sunny, Prof. D. Kastha, Prof. S. Jayanarayanan, and Prof. Debalay Chakrabarti.
New article published in www.womensweb.in
https://www.womensweb.in/2020/05/what-your-daughter-is-not-parenting-may20wk1sr/
Manuscript accepted for publication in the Journal of Mechanical Engineering Science (Part C). (2020) : R.K. Praharaj and N. Datta, “Dynamic response of Euler-Bernoulli beam resting on fractionally damped viscoelastic foundation subjected to a moving point load”.
Internships begin :
(1) Mr. Yash Goyal : Solar-powered ultrasonic pest repellent machine.
(2) Mr. Unnikrishnan Nambiar : Business plan of Coastal wind turbine.
(3) Mr. Siddharth Mohapatra : Bio-Gas plant for Prembazar Dairy.
(4) Mr. Umang Agarwal : Solar-powered lawn mower.
(5) Ms. Anshika Shristi : Jute-based biodegradable sanitary pad.
Manuscript accepted for publication in Mechanics Based Design of Structures and Machines, An International Journal (2020) : Rajendra Kr. Praharaj, N. Datta, "Dynamic response of plates resting on a fractional viscoelastic foundation and subjected to a moving load".
June 2020 (Lockdown)
Manuscript accepted for publication in Computational and Applied Mathematics, Elsevier (Impact factor 1.9) : Rajendra K. Praharaj and N. Datta, “On the transient response of the plates resting on fractionally damped viscoelastic foundation".
Family crisis : Mother detected with bile duct cancer. She had been complaining of acid reflux, nausea, vomiting since last three months. Having lost all appetite, she became a skeletal version of herself.
This month was spent looking after my mother.
Mother's chemotherapy begins at Eastern Command Hospital, Kolkata. Yes, it is tough on a 70-yr-old. The mid-cycle nadir saw her hospitalized for a few days. It took her another two weeks to restore her energy and stabilize her immunity.
New Project Student Mr. Saumitra S. Joshi : Bicycle-powered Road-Broom
August 2020
Mother's 2nd round of chemotherapy. This time it is oral chemotherapy. But she developed acute jaundice and this chemo was stopped in two days. She began having wheatgrass (gehun ka jawara), giloy (guduchi), apart from kaalmegh. The jaundice disappeared within 3 days. Her health improved steadily. She started regaining her lost energy slowly. Her appetite improved and so did her independence.
New subject matter expert (SME) joins the biogas plant project : Prof. (Retd.) D.D. Kar.
New Project Student Ms.Yashada Mache : biogas plant civil works design.
Biogas plant ground work : Site visit.
September 2020
Mother's oral chemotherapy restarts. Below are the pictures are the final time that she cooked in the kitchen.
Wind Turbine Project : Supporting Structure (Tower and Foundation) construction by Contract Mr. Sudip Das.
Promoted as Associate Professor at IIT Kharagpur.
October 2020
Wind Turbine Project : Electrical infrastructure works contract given to Mr. Badal Dey.
Blade fabrication begins : The 35 bulkheads of the blade fixed in sequence with individual pitch angles.
Made profits in the Bombay Stock market for the first time.
Restarted working out after 7 months.
Family Crisis Again : Mother hospitalized with cancer-complications. Post discharge, we appointed a 24/7 nurse to look after her.
November 2020
Began running. Started Loving it.
Wind Turbine Project : Electrical infrastructure works completed.
My mother's condition deteriorated further. Ascites continued. My brother-in-law drained her belly after every few days.
Blade fabrication Progress : with 35 bulkheads, the 3.3 m long blade was shaped with cloth, resin, and chalk.
Made profits in the Bombay Stock market again.
Bio-gas plant project : First survey for raw material (4 tonnes per day assured).
December 2020
Progress in projects (i) Biogas plant and (ii) Electric lawn mower.
December 2020
Progress in projects (i) Biogas plant and (ii) Electric lawn mower.
Blade Fabrication Progress : mould-making process at final stage, with putty-smearing for the final shape.
Bio-gas plant project : Second survey for raw material (12 tonnes per day assured).
Nacelle fabrication begins. Hardware procurement for the wind turbine continues.
Equipment procurement for the wind turbine begins.
Formally stopped doctoral guidance at IIT KGP. Quit academic research forever, after ten long years. That part of my life was long over in mid-2017. Only some hangover activities were lingering.
Continued to run 3 times a week, and restarted yoga after 5 years (loving it, once again!).
Continued to run 3 times a week, and restarted yoga after 5 years (loving it, once again!).
This was the last time my mother came to the dining room for lunch, 24 days before she passed away.
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Year Summary
Year Summary
An age comes when we outgrow our parents. We can survive happily without them. Their presence is a bonus. Just like any other relationship, this blood-relationship also needs to be moved on from, sooner or later.
Finally, for the first time, 14 years after receiving a Dual Degree in Engineering/Technology, do I feel like an engineer! Lag raha hain, abhi tak sab drama chal raha thha.
Finally, for the first time, 14 years after receiving a Dual Degree in Engineering/Technology, do I feel like an engineer! Lag raha hain, abhi tak sab drama chal raha thha.
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