Section 2 Particulars to be submitted
Clasification Society 2024 - Version 9.40
Clasifications Register Rules and Regulations - Rules and Regulations for the Classification of Special Service Craft, July 2022 - Part 11 Transmission Systems - Chapter 2 Shafting Systems - Section 2 Particulars to be submitted

Section 2 Particulars to be submitted

Parent topic: Chapter 2 Shafting Systems

2.1 Plans

2.1.1 At least three copies of the following plans are to be submitted:

  • Shafting arrangement.
  • Thrust shaft.
  • Intermediate shafting.
  • Tube shaft, where applicable.
  • Screwshaft.
  • Screwshaft oil gland.
  • Screwshaft protection.
  • Sternbush and arrangement in housing.
  • Couplings.
  • Coupling bolts.
  • Flexible coupling.
  • Cardan shafts.

2.1.2 The shafting arrangement plan is to indicate the relative position of the main engine(s), flywheel, flexible coupling(s), gearing, thrust block, line shafting and bearing(s), sterntube, `A' bracket and propulsion device, as applicable.

2.2 Calculations and specifications

2.2.1 The following calculations and specifications are to be submitted:

  • Calculations, or relevant documentation indicating the suitability of all components for short term high power operation, where applicable.
  • Where undertaken as an alternative to the requirements of this Chapter, fatigue endurance calculations of all components according to Pt 9 General Requirements for Machinery.
  • Vibration analysis and alignment analysis as required by Pt 13 Shaft Vibration and Alignment.
  • The material specifications, including the minimum specified tensile strength of each shaft and coupling component are to be stated. Where corrosion resistant material not included in Table 2.4.1 `A’ Value for use in unprotected screwshaft formula is used for unprotected screwshafts the corrosion fatigue strength in sea-water is to be stated together with the chemical composition and mechanical properties.
  • Where it is proposed to use composite (non-metallic) shafts, details of materials, resin, lay-up procedure and documentary evidence of fatigue endurance strength.
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