Mass reduction compared to steel shafts of magnitude 2:1 to 5:1
High stiffness > leading to high critical shaft speed and reduces number of bearings
Maintenance free, corrosion resistant
Tunable and low torsional stiffness, low mass moment of inertia, accurate prediction of torsional stiffness
Low material damping factor
Low thermal expansion coefficient
Electric properties: Tunable from electric conductive (CFRP) to electric nonconductive (GFRP)
For each Composite shaft line VULKAN performs for the following analyses
Determination of the strength and stiffness properties of the individual laminate construction of each composite shaft by calculation.
Analysis of the composite shaft failure modes according to DNV-Standard “Type approval of composite shafts and flexible couplings, standard for certification, No. 2.9, type Approval Program No. 1-50. 16”.
Vibration analysis of the shaft system including respective parts of engine, gearbox and water jet by means of FEA (ANSYS).
Alignment analysis with prediction of bearing loads.
Hull deflection analysis.
If necessary, experimental verification is performed by the VULKAN test department which is perfectly equipped for all kinds of tests.
