Cargo vessel’s propulsion system torsional vibration calculation

Cargo vessel’s propulsion system torsional vibration calculation

A cargo vessel propulsion system torsional vibration calculation has been delivered to our customer! Some of the data was not provided by the manufacturer, but experienced IMT team filled the gaps by the statistical data and additional preliminary calculations. The standard Class recommendation for torsional vibratory loads from 3-blade propeller was too big for this …

Shaft alignment calculation for power plant turbine shafting

Shaft alignment calculation for power plant turbine shafting

The customer’s requirement was to provide the zero moment and shear force in all couplings. We developed the special calculation that searches for the bearings vertical offsets solution in order to provide such conditions. The ShaftDesigner software is unique in this; it holds all calculations together based on the single model. Of course, the user …

Tug’s propulsion system torsional vibration calculation

Tug’s propulsion system torsional vibration calculation

Another successful project is completed by our team while in quarantine! This time it was a tug’s Torsional Vibration Calculation. The project included four-stroke diesel engine, flexible coupling, gearbox, propeller shaft and five-blade propeller. Despite the lack of all information about the installation, our experienced engineers managed to fill the missing parts with help of …

ShaftDesigner 1.9.20 released

ShaftDesigner 1.9.20 released

  The ShaftDesigner software is continuously improved even in the quarantine conditions. We just updated our users with new 1.9.20 version of ShaftDesigner. The main changes took place in the Torsional Vibration module: new torque-dependent acceptance criteria for vibratory torque and power loss; reducing pressure at a cylinder on a constant value; orders information in …

ShaftDesigner 1.9.19 released

ShaftDesigner 1.9.19 released

  It was really efficient February for IMT! Yesterday we updated our costumers with the next ShaftDesigner 1.9.19 version after implementing their requests and improve the software. The most critical improvements are significant speed-up of vibrations calculation due to more efficiently using system resources, at least 2 times on heavy projects. We also continue to …

ShaftDesigner 1.9.17 released

ShaftDesigner 1.9.17 released

        Recently, Intellectual Maritime Technologies released the next regular update 1.9.17 for ShaftDesigner Users.  – The Torsional vibration module received significant updates: a wide range of improvements in the user interface, reporting, some bug fixing, etc. – The Alignment module was also improved: clarification of acceptance criteria according to classes, Jack-Up test …

Shaft Alignment in a dry dock

Shaft Alignment in a dry dock

  Dr. Yuriy Batrak, May 2019 SHAFT ALIGNMENT IN A DRY DOCK Recently our company IMT was asked to deal with the problem of rapid wear of the intermediate shaft line bearings. Many assumptions were considered regarding the possible causes of failures. According to the presented shaft alignment calculation, there should be no problems. Moreover, …

Optimal offsets calculation

Optimal offsets calculation

Reliability of the marine propulsion shafting depends on shaft alignment design (initial bearings’ offsets). The optimal solution should not only meet all requirements of manufacturers and classifications societies but also tolerate inevitable errors and inaccuracies of shaft alignment design and implementation as much as possible. Offset Explorer is a unique tool of ShaftDesigner software finding …

Shaft alignment application: Basics

Shaft alignment application: Basics

Safety first. Shaft alignment design is not an ordinary calculation and implies the presence of certain acceptance criteria that the initial offsets should satisfy. Complying the acceptance criteria is a prerequisite for safe operation. The more thorough the design states are assigned and the acceptance criteria are selected, the greater the guarantee that the shafting …