Germanischer Lloyd Certifies SimulationX

MarineLink.com
Wednesday, May 15, 2013

ITI GmbH today announced that for the first time a marine application of the interdisciplinary simulation software SimulationX has passed Germanischer Lloyd’s (GL) type approval certification.

The SimulationX software module marine propeller for the calculation of ice impact induced loads on the powertrain was designed and developed by ITI in collaboration with GL in accordance with the specifications laid down by GL, the Finnish-Swedish Maritime Administration and the IACS. The software certification conducted by GL proves the software’s high quality standards and is evidence of ITI’s commitment to safe, reliable and energy efficient ship propulsion systems.

According to the new specifications for ice classes that were elaborated by the Finnish and Swedish Maritime Administration, it is required to evaluate the impact of propeller-ice-torque excitation on the drive shaft. The ship’s operational safety and the material’s durability must be demonstrated under various conditions including artic temperatures and critical scenarios. The specifications in question describe three load cases of shock sequences on the propeller as outlined by GL (GL 2012, I – Part 1 – Chapter 2 – Section 13 – Machinery for Ships with Ice Classes), the Finnish-Swedish Maritime Administration/TransportSafetyAgency (TraFi/31298/03.04.01.00/2010) and the IACS (UR I3 Req.2011). The transient simulation of ice impact scenarios has thus become an integral part for shipbuilders and suppliers marking the departure from traditional steady-state analyses used in the past.

By the help of physically correct simulations, SimulationX users predict vibration loads originating from ice impact on the propeller. These extreme conditions are analyzed with SimulationX on a virtual basis over a longer period of time and for various parameter configurations. The simulation results permit reliable evaluations of each component and thus contribute to ensuring safe operation also under arctic conditions. The SimulationX propeller model allows for accurate calculations of torsional vibrations with respect to propeller-ice interactions and the torque loads acting on the powertrain as a consequence of ice impact based on the Baltic and polar ice class definitions. These definitions cover the following ice classes: E1, E2, E3, E4 (GL), IC, IB, IA, IA super (Finnish Marine Administration/TraFi) and PC1, PC2, PC3, PC4, PC5, PC6. PC7 (IACS UR I3, GL).

The model marine propeller was designed for transient and steady-state torsional vibration analyses (TVA) of ship propulsion systems in SimulationX. Both types of calculation can be performed with the same model in one software program. The simulation accounts for propeller inertia, blade excitation as well as various load and damping scenarios. Based on a range of different ice impact scenarios, it is also possible to model ice impact torque on the propeller blades. The propeller is attached to rotatory powertrain models including the conversion of drive torque into flow force and thus into motion. The model can be used for calculations in the time and frequency domains. It is compatible with the simulation software SimulationX. That makes it possible to integrate further model elements, such as shafts, couplings, drive systems and loads, for more advanced torsional vibration analyses. Moreover, SimulationX comes with a broad range of options for visualizing, analyzing and documenting results.

www.itisim.com

www.simulationx.com
 

Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Marine Propulsion

Wärtsilä Reports Healthy Ship Power Sector in Q1 2014

In its interim financial report January to March 2014 Wärtsilä notes healthy development in ship power and services offsetting challenges in power generation markets.

Fishing Vessels Fit with Wärtsilä’s NOx Reducer

Wärtsilä said its new NOx Reducer will be fitted to two new fishing vessels under construction at the Celiktrans yard in Turkey. The ships are owned by HB Grandi,

NCL Spotlights Eco-Smart Cruising Program

On Earth Day, Norwegian Cruise Line NCL) celebrated key achievements from the past year that, as a part of its Eco-Smart Cruising program, help preserve the world's oceans.

Software Solutions

DockMaster 8.0 Beta Program Launched

My-Villages, owner of the DockMaster suite of marine business software, launched DockMaster 8.0 for beta testing, which it calls the most powerful version yet with new navigation,

OSI to Integrate Software for UK Royal Navy

OSI Maritime Systems (OSI) announced the signing of a contract to integrate its flagship software, ECPINS-W Sub, into the U.K. Royal Navy’s T45 Destroyer Integrated Bridge System (IBS).

HHI to Deploy 3DEXPERIENCE Design Platform

Hyundai Heavy Industries Selects Marine & Offshore Industry Solution Experiences for Design and Engineering of Offshore Structures Dassault Systèmes, the 3DEXPERIENCE Company,

 
 
Maritime Contracts Naval Architecture Navigation Pipelines Pod Propulsion Salvage Ship Electronics Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1169 sec (9 req/sec)