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PUBLICATIONS

Peer reviewed Journals

  1. Thiyagarajan Ranganathan, Vijendra Singh and Asokan Thondiyath, 'Theoretical and Experimental Investigations on the Design of a Hybrid Depth Controller for a Standalone Variable Buoyancy System – vBuoy', IEEE Journal of Oceanic Engineering, Oct 2018. (Accepted for publication) DOI:10.1109/JOE.2018.2875576. IF: 2.065.

  2. Thiyagarajan Ranganathan, Vijendra Singh and Asokan Thondiyath, ‘Estimation of Hydrodynamic Parameters for Underwater Systems Using a Simple Offline Regression Method: A Case Study’, Journal of Marine Science and Technology, Springer, Oct. 2018. DOI: 10.1007/s00773-018-0599-2. IF 1.119.

  3. Thiyagarajan Ranganathan, Vijendra Singh, Ranjith Nair, and Asokan Thondiyath, ‘Design of a Controllable Variable Buoyancy Module and its Performance Analysis as a Cascaded System for Selective Underwater Deployment’, Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for Maritime Environment, vol. 231, no. 4, pp.888-901, Jan. 2017. DOI:10.1177/1475090216688819 IF: 1.310.

  4. Thiyagarajan Ranganathan, Ridhi Puppala and Asokan Thondiyath, ‘Design Optimisation and Performance Investigations of a Novel Underwater Glider, RoBuoy’. (Manuscript under preparation)

Patents

  1. Gaurav Sant, Sharu Bhagavathi Kandy, Torben Gädt, Iman Mehdipour, Thiyagarajan Ranganathan, Samanvaya Srivastava, Paul Seiler.'Thermoresponsive suspension composites for 3D printing', Application Number: US17529763, published on 18/05/2023

  2. Thiyagarajan Ranganathan and Asokan Thondiyath, ‘Controllable Variable Buoyancy System Based on Actuated Flexible Members or Structures and their Uses’, Application Number: 4683/CHE/2015, filed on 04/09/2015, Granted in July 2022.

  3. Thiyagarajan Ranganathan and Asokan Thondiyath, ‘Underwater Glider with Flexible Chamber for Variable Buoyancy’, Application Number: 201741036333, filed on 12/10/2017. (Published)

  4. Thiyagarajan Ranganathan and Asokan Thondiyath, ‘Underwater Manipulator using Variable Buoyancy Actuators’, Application Number: 201741036720, filed on 16/10/2017, Granted in Dec. 2023.

  5. Ganeshram Nandakumar, Thiyagarajan Ranganathan and Asokan Thondiyath, ‘A Multirotor with a Vertically Offset Overlapping Configuration and Uses Thereof’, Application Number: 5621/CHE/2014, Granted in Feb. 2023

Conference Papers

  1. M. R. R, K. Chandrasekaran, T. Ranganathan and A. Thondiyath, "Computational Fluid Dynamic Study on the Effect of Winglet Addition in Flapping Hydrofoils to Evaluate the Propulsive Performance of Wave Gliders," OCEANS 2022 - Chennai, 2022, pp. 1-4, doi: 10.1109/OCEANSChennai45887.2022.9775423.

  2. S. Dey, R. Puppala, N. Govindan, T. Ranganathan and A. Thondiyath, "Towards Mission-Specific Characterization of the Diving Performance of an Underwater Glider," OCEANS 2022 - Chennai, 2022, pp. 1-6, doi: 10.1109/OCEANSChennai45887.2022.9775285.

  3. S. Panigrahi, V. Ashok, V. K. Pediredla, T. Ranganathan and A. Thondiyath, "Mathematical modelling and control of a submersible multi-medium UAV," OCEANS 2022 - Chennai, 2022, pp. 1-9, doi: 10.1109/OCEANSChennai45887.2022.9775252.

  4. Puppala, Ridhi, Nikhil Sivadasan, Abhijeet Vyas, Akshay Molawade, Thiyagarajan Ranganathan, and Asokan Thondiyath. "Design, Estimation of Model Parameters, and Dynamical Study of a Hybrid Aerial-underwater Robot: Acutus." In ICINCO (2), pp. 423-430. 2019.

  5. Thiyagarajan Ranganathan, Sundaravalli Aravazhi, Sambit Mishra and Asokan Thondiyath, ‘Design and Analysis of a Novel Underwater Glider – RoBuoy’, in IEEE International Conference on Robotics and Automation (ICRA’18), Brisbane, QLD, 2018, pp. 2089-2094. DOI: 10.1109/ICRA.2018.8462921.

  6. Abhijeet Vyas, Akshay Molawade, Nikhil Sivadasan, Ridhi Puppala, Thiyagarajan Ranganathan and Asokan Thondiyath, ‘Design and Dynamic Analysis of a Novel Hybrid Aerial - Underwater Robot – Acutus’, Submitted to OCEANS 2019. (Under Review).

  7. Thiyagarajan Ranganathan and Asokan Thondiyath, ‘Design and Analysis of Cascaded Variable Buoyancy Systems for Selective Underwater Deployment’, in Proceedings of the 13th International Conference on Informatics in Control, Automation and Robotics (ICINCO 2016), Lisbon, Portugal, 2016, vol. 2, pp. 319–326.  DOI: 10.5220/0005979903190326

  8. Thiyagarajan Ranganathan, John Pattery, and Asokan Thondiyath, ‘Design and Analysis of Cable-Connected Metallic Bellows as Variable Buoyancy Modules’, in IEEE International Conference on Underwater Technology (UT), Chennai, India, 2015. DOI: 10.1109/UT.2015.7108289

  9. Ganeshram Nandakumar, Thiyagarajan Ranganathan, B. J. Arjun, and Asokan Thondiyath, ‘Design and Analysis of a Novel Quadrotor System - VOOPS ,’ in IEEE International Conference on Robotics and Automation (ICRA’15), Seattle, WA USA, 2015, pp. 1692–1697. DOI: 10.1109/ICRA.2015.7139415

  10. Thiyagarajan Ranganathan, Silla Pavan Kumar and Asokan Thondiyath, ‘Design and Analysis of an Underwater Quadrotor –AQUAD’ in IEEE International Conference on Underwater Technology (UT), Chennai, India, 2015. DOI: 10.1109/UT.2015.7108290

  11. Jiyo S. Athertya, Thiyagarajan Ranganathan, Saravana Kumar G, ‘Segmentation of Lumbar Vertebrae from MRI using Expectation Maximization and Hidden Markov Random Fields,’ 2nd International Conference on Biomedical Systems, Signals and Images, IIT-Madras, Chennai, 2016.

  12. Thiyagarajan Ranganathan and Asokan Thondiyath, Poster presentation on ‘Variable Buoyancy Mechanisms for AUVs’, International Workshop on Underwater Technologies, NIOT Chennai, 2014.

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