Presentation
This training course describes the various components of a shaft line and the different types of shafts and their couplings, the importance of shaft alignment and the various methods utilized for shaft alignment. The course provides also a brief introduction to the vibrations that may affect the shaft lines.
Objectives
On completion of the training, students will be able to:
Get familiar and understand the components of a shaft line, know the types of shafts and their couplings, understand the protection required and the shaft line components scantlings and get familiar with the required tests and certification of shaft lines.
Understand the importance of shaft alignment and the factors influencing the alignment, know the different alignment methods currently employed and understand the shaft alignment issues for installations other than the main shafting line.
Understand the different types of vibrations that may affect shaft systems, know the general principles of torsional and axial vibrations and get familiar with the vibration control methods and vibration tests and measurements
Program
Module 1 - Shaft Lines and Propeller
Shaft line components: Shafts, shaft liners, propellers, propeller cap, shaft and intermediate bearings, stern tube, stern tube bushes and seals
Couplings: Flanged couplings, hydraulic couplings, flexible couplings
Design and construction: Propeller shaft key and keyway, shaft materials, couplings materials, coupling bolts, shaft scantlings, shaft monitoring
Inspection and certification: Inspections during construction, material tests, hydrostatic tests, certification, sea trials
Module 2 – Shaft Alignment
Introduction
Alignment calculation
Required information
Factors influencing the alignment: Draught, buoyancy, rigidity of the bearing base, temperature
Alignment methods: Gap and sag method, sighting method, jack-up method, strain gauge method
Alignment verification on board
Shafts for other installations: Alignment techniques, preparation, types of misalignment, alignment methods
Module 3 – Shaft Vibrations
Torsional vibrations
Rules requirements
Vibration damper
Barred speed range
Required documentation
Calculation principles
Axial vibrations
Vibration control and tests
Certificate
On completion of the training program, the student will be awarded:
A Certificate of Shaft Alignment, issued by Bureau Veritas Solutions Marine & Offshore.
The Certificate of Shaft Alignment is obtained after completing the course and passing the online test.