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Funded research projects

Fifteen projects funded by the European Union, the Greek Secretariat for Research and Technology, the Hellenic Foundation for Research and Innovation, classification and industry, spanning 2000 to 2027.

Project portfolio

Long-term programmes and focused industrial studies, most of them with partners from industry and from other universities.

ProjectPeriodFundingCoordinator
SAFeCRAFT
Safe and Efficient Use of Sustainable Fuels in Maritime Transport Applications
1/6/2023 – 31/5/2027EUD. Lyridis, Prof. NTUA
PASITHEA
A Hybrid Autonomous Unmanned Vehicle system
1/12/2023 – 31/11/2026EDFN. Tsouvalis, Prof. NTUA
LH2Craft
Safe and Efficient Marine Transportation of Liquid Hydrogen
1/6/2022 – 31/5/2026EUN. Tsouvalis, Prof. NTUA
i-MARINE
Intelligent adaptive-controllable alignment in marine propulsion systems for performance optimization and failure prevention
12/2019 – 6/2023H.F.R.I. (Phase II)School of Naval Architecture & Marine Engineering, NTUA
Greek Shipbuilding Legacy & Naval History
Promotion, documentation and technical support — the Battles of Navarino and Salamis
1/9/2018 – 31/8/2021GSRT (“Research – Create – Innovate”)A. Ginnis, Assoc. Prof. NTUA
MHI TD025R thrust bearing
Investigation of performance under transient dynamic conditions
1/9/2018 – 31/8/2019Mitsubishi Turbocharger and Engine Europe B.V.C. I. Papadopoulos
MHI TD025R thrust bearing
Design optimization
1/9/2016 – 31/8/2017Mitsubishi Turbocharger and Engine Europe B.V.C. I. Papadopoulos
ECCO-MATE
Experimental and Computational Tools for Combustion Optimization in Marine and Automotive Engines
10/2013 – 9/2017EUM. Founti, Prof. NTUA · L. Kaiktsis, Assoc. Prof. NTUA
TRIBO-MARINE
Tribological Optimization of Marine Propulsion Systems
1/9/2012 – 31/8/2015GSRT — “ARISTEIA”L. Kaiktsis, Assoc. Prof. NTUA
DEYKALION 1/3/2012 – 28/2/2015GSRT — “THALIS”J. Prousalidis, Assoc. Prof. NTUA
MARINELIVE
Marine Electrical Initiative
15/12/2010 – 15/12/2013EUJ. Prousalidis, Assoc. Prof. NTUA
Centre of Excellence in Ship Total Energy – Emissions – Economy 1/2/2010 – 31/1/2014Lloyd’s Register Educational TrustC. Frangopoulos, Prof. NTUA
PYTHAGORAS 1/4/2004 – 31/3/2007EPEAEKI. Georgiou, Assist. Prof. NTUA
SMOKERMEN
Smoke Emissions Reduction in Marine Engines
1/7/2002 – 31/6/2005EUN. Kyrtatos, Prof. NTUA
LIFETIME
Low In Fuel and Emissions Two-stroke Intelligent Marine Engine
1/4/2000 – 31/8/2003EUN. Kyrtatos, Prof. NTUA

Periods, funders and coordinators are reproduced as stated in the group’s project records and CV (June 2025).

i-MARINE: from a digital twin to an instrumented ship

Intelligent adaptive-controllable alignment in marine propulsion systems for performance optimization and failure prevention. Funded by the Hellenic Foundation for Research and Innovation (H.F.R.I., Phase II), December 2019 – June 2023, hosted by the School of Naval Architecture and Marine Engineering, NTUA, with STARBULK as partner.

The project vision was to transform a conventional propulsion shaft arrangement into an intelligent, controllable and adaptive system: one that senses the status of its components, controls its own performance and reacts when behaviour approaches a critical state.

Project goals

  • Develop advanced numerical simulation methods for the behaviour of the ship hull and the propulsion shaft and bearings.
  • Develop intelligent sensors, data acquisition and data processing to determine the present condition of the system components in operation.
  • Develop adaptive control techniques that adjust design and operational parameters for an optimal response.

Key objectives include increased reliability and safety of the vessel and the reduction of propulsion-system failures through on-time awareness of the shafting state.

CAD model of the i-MARINE shaft and bearing prototype
CAD model of the shafting line used for the digital twin and the small-scale prototype of the i-MARINE project.

Scientific methodology

A

Develop an accurate digital twin of a ship’s shafting system.

B

Develop bearing and shafting monitoring procedures.

C

Conduct small-scale experiments to verify the accuracy of the developed models.

D

Implement and test an integrated monitoring platform on a vessel, using the outcome of steps A, B and C.

Models developed

  • Journal bearing modelling — isothermal lubrication, elastohydrodynamic lubrication, isoviscous thermal lubrication and the effect of surface roughness.
  • Shaft alignment modelling — bearing offsets and shaft elastic line.
  • Hull deflection calculation for the loading conditions of the vessel.

Dissemination and knowledge transfer

  • Knowledge-sharing workshops and publications.
  • System documentation.
  • Detailed analysis of relevant digital twins.
  • Proposals for novel applications.

WP5 — bearing monitoring prototype. Over 28 person-months (months 1–6 and 16–42 of the programme) NTUA and STARBULK built and installed a bearing monitoring prototype on board. The preliminary work defined novel applications around shaft-line states: identifying the operating window in which all bearings operate under at least marginally acceptable loads, correlating marginal elastic shaft lines with the calculated bearing reaction forces, raising an on-time alert when the shaft alignment enters a marginally acceptable state, and linking hull-deflection effects with the robustness of each optimal solution. For a reference offset set (aft stern-tube bearing at 0 mm; fore stern-tube, intermediate-shaft and main-engine bearings #9 and #8 at 0, ±0.1, ±0.2, ±0.3, ±0.5 and ±0.8 mm from their initial offsets) the study covered 40,000 scenarios.

CAD model of the instrumented bearing housing of the prototype
Prototype rig: shaft, bearing housing and sensor installation.
Instrumentation installed on the shaft for the sea trials
Instrumentation of the shafting for the onboard campaign.
Multi-bearing shaft alignment test bed used for verification
Small-scale verification on the multi-bearing shaft-alignment test bed.

Prototype set-up: 2 m shaft of 500 mm diameter, instrumented with a triaxial accelerometer, two general-purpose DC LVDTs, a TorqueTrak 10K with strain gauges, an LCD monitor for live data viewing and an Arduino UNO for data storage. Tests and sea trials on board the bulk carrier STAR Cleo were scheduled for 23 March 2023.