ALIGNMENT & MEASUREMENT
THE ALIGNMENT OF ENGINES AND
Stresses and vibrations created by
As a leading leading OEM’s OEM’s of propu propulsio lsionn syste systems, ms, from
PROPELLER SHAFTS IS CRITICAL
misaligned rotating shafts will not only lead to
engines, gears, propellers, and propeller shafts
IN SHIPBUILDING AND MARINE
breakdowns in the engines’ shaft assembly,
to seals & bearings, we have full knowledge and
MAINTENANCE.
but can also cause damage to struts and
understanding of propulsion systems.
hulls. Vessel engine drive systems do not
Our worldwide services organization supported by our global engineering
remain in alignment for life and need to be
capacities allows us to provide prompt and
periodically checked and realigned in order to
accurate solutions for all propulsion system
reduce wear and prevent damage.
alignment issues.
Stern tube arrangement
Shaft
Rudder arrangement
Shaft line
ALIGNMENT & MEASUREMENT SERVICES Propulsion systems need periodically to be checked and realigned
Intermediate shaft bearings
Main engine
Generator sets
Component
Stern tube
Our measurement capabilities • • • •
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Load distribution Edge loading in bearings Geometrical alignment Straightness of stern tube, using the Wärtsilä gyro laser system Alignment of stern tube, using the Wärtsilä gyro laser system
Our repair solutions •
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Propeller shaft / intermediate shaft
Geometrical alignment Straightness of shaft, using the gyro laser system Alignment of shaftline, using the gyro laser system Position of bearings, using the gyro laser system Slope in stern tube bearings, using the gyro laser system Bending moments, using strain gauges Shaft whirling, using high speed data acquisition system Dynamic behavior of shaft Can even be done without dismantling •
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Realignment of stern tube & bearings, including positioning Repair of damaged bearings (remetalling of white metal) In-situ machining of stern tube We perform work supervision and commissioning We supply OEM parts Realignment of shaftline and bearings, including re-chocking We repair bended shaft with class approved cold straightening technology We perform work supervision and commissioning We supply OEM parts
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Engines
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Gear box
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Shaft generator
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Measurement of engine alignment, with laser Measurement of engine straightness and twist with Wärtsilä gyro laser Measurement of main bearing loads, with Wärtsilä bearing load system Measurement of vibrations (linear & torsional vibration) Crankshaft deflection, journals inclination & straightness using the Wärtsilä inclinometer system Bearing cap landing surfaces Alignment of gearbox in relation to connected components Measurement of bearing loads, with the Wärtsilä bearing load system Measurement of vibrations Measurement of gearwheel alignment Measurement of gear forces Measurement of generator alignment with laser Measurement of vibrations and imbalance
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Rudder
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Rudder position in 3D shape Rudder stock straightness Nozzle positioning and alignment Steering gear alignment
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Hull
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Measurement of hull deflection from afloat to keel block condition Measurement of hull structure with 3D laser
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Realignment, including re-chocking In-situ machining of damaged crankshafts In-situ balancing of coupling In-situ machining of bearing cap landing surfaces We perform work supervision and commissioning We supply OEM parts Repair with OEM parts Realignment, including re-chocking We perform work supervision and commissioning
Realignment, including re-chocking In-situ balancing of rotor and coupling We perform work supervision and commissioning Alignment of bearings Alignment of steering equipment Repair bended shaft by class approved cold straightening technology In-situ machining We perform work supervision and commissioning We supply OEM parts Design capabilities
MEASUREMENT CAPABILITIES AND REPAIR SOLUTIONS To investigate and determine causes of excessive wear, noise, vibrations, and damages to complete propulsion train systems, we perform full geometrical measurements of all components concerned.
THE UNEXPECTED CAN BE EXPENSIVE
OUR SERVICES COVER THE ENTIRE PROCESS:
To prevent damages or prepare an optimum schedule for coming drydocks, our online monitoring system completed by regular onboard inspections performed by our
By class approved methodology Measure
senior engineers provides our customers with complete, updated information on the system alignment situation. Our report includes all measurement
Analysis
Calculation of alignment and vibration according to class requirements By senior technical expert
records and recommendations for the operation and maintenance of the
Record of measurement
installation. Reporting
Proposal of corrective actions
WE ARE NEVER TOO FAR AWAY TO HELP Our Wärtsilä services offices located in 160
By class appproved methodology
locations in 70 countries, in addition to our alignment capability in Europe, America and Asia, enable the best and quickest solutions
Corrective action
By OEM’s engineering With OEM parts
for our customers, whenever, wherever.
Cold straightening & reconditioning of propeller shafts , intermediate shafts, and rudder stocks in our facilities. All repairs fulfill rules and regulations in accordance with the classification societies
WÄRTSILÄ ® is a registered trademark. Copyright © 2011 Wärtsilä Corporation. Specifications are subject to change without prior notice.
WARTSIL A.COM
