Composite Shaft Advantages:

  • 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)
A color-coded 3D model displays the distribution along an elongated object. A color scale on the left ranges from blue to red. A red-colored area is shown in the center of the object. A coordinate axis is located at the bottom right for orientation.
A large cylindrical apparatus with various mechanical components and sensors is mounted horizontally. The object is situated in a technical environment.

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.