|
Category I
|
– obligatory data, lack of
which renders impossible any calculations.
|
|
Category II
|
– very important
additional data, taking in account of which may results in substantial
quantitative and qualitative changes.
|
|
Category III
|
– descriptions of shaft
alignment and operating conditions that enable goal-seeking behavior to
derive more relevant results for shaft alignment procedure and ensure more safe
propulsion shafting operation.
|
|
|
|
Pos
|
Name
|
Category
|
|
I
|
II
|
III
|
I. GENERAL
|
|
1
|
Ship Type and
main particulars
|
|
|
*
|
|
2
|
Ship
Class
|
|
|
*
|
|
3
|
Is
the ship newbuilded or repaired
|
|
|
*
|
|
4
|
If
the ship is repaired set out the cause of the repair including description of
the damage nature and conditions
|
|
|
*
|
|
5
|
List
of main operating conditions
|
|
|
*
|
|
6
|
Assumed
alignment conditions
|
|
*
|
|
|
7
|
Assumed
alignment technique
|
|
|
*
|
|
8
|
Shaft alignment
procedure limitations
|
|
*
|
|
|
9
|
Other
special conditions
|
|
|
*
|
II. SHAFTING
|
|
1
|
General
Arrangement of propulsion shafting
|
*
|
|
|
|
2
|
Drawings
of the shafts specifying their lengths and diameters
|
*
|
|
|
|
3
|
Masses
and center of gravity for heavy equipment associated with the shafting
|
*
|
|
|
|
4
|
Information
about filling of the shaft bore (oil, rods etc.)
|
|
*
|
|
|
5
|
Information
regarding propeller shaft liner (material, thickness)
|
|
*
|
|
III. BEARINGS
|
|
1
|
Stern tube
drawing
|
|
*
|
|
|
2
|
Material
and dimensions of the stern tube bearing bushes
|
*
|
|
|
|
3
|
Stern
tube bearing lubricator (water, oil)
|
|
*
|
|
|
4
|
Permissible
loads for intermediate bearings specified by manufacturer
|
*
|
|
|
|
5
|
If
permissible loads for intermediate bearings are unknown material and
dimensions of bearing bushes
|
*
|
|
|
|
6
|
Thermal growth
at the bearings place
|
*
|
|
|
|
7
|
Compliance
of the stools
|
|
|
*
|
|
8
|
Wear down rate
|
|
|
*
|
IV. PROPELLER
|
|
1
|
Weight in the
air
|
*
|
|
|
|
2
|
Material
|
*
|
|
|
|
3
|
In
the case of CPP weight of the blades and hub volume (hub dimensions)
|
*
|
|
|
|
4
|
Percent
of submergence during shaft alignment
|
*
|
|
|
|
5
|
Percent
of submergence in operation
|
|
*
|
|
|
6
|
Vertical
and horizontal hydrodynamic moments in operation (thrust value and
eccentricity)
|
|
*
|
|
V. ENGINE
|
|
1
|
Type
|
|
|
*
|
|
2
|
Static
thrust load Diagram (for low speed engines)
|
*
|
|
|
|
3
|
Deflectional
and angular compliances at the thrust-shaft flange (for low speed engines)
|
*
|
|
|
|
4
|
Crankshaft
dimensions, allowable loads for engine bearings and allowable stress in
crankshaft if data of item 2, 3 for low speed engines are not available
|
*
|
|
|
|
5
|
Weight
of flywheel
|
*
|
|
|
|
6
|
Thermal
growth
|
*
|
|
|
|
7
|
Additional
loads on crankshaft in operation
|
|
|
*
|
VI. GEAR BOX
|
|
1
|
Output
shaft drawing specifying shaft lengths and diameters
|
*
|
|
|
|
2
|
Weight
of the wheel
|
*
|
|
|
|
3
|
Permissible
loads for gear box bearings specified by manufacturer
|
*
|
|
|
|
4
|
Allowable
difference of loads on output shaft bearings
|
|
*
|
|
|
5
|
Thermal
growth
|
*
|
|
|
|
6
|
For
one pinion helical gear:
−
Power of pinion
−
Pitch diameter of wheel
−
Speed of wheel
−
Transverse pressure angle of gear wheel
−
Helix angle of gear
|
|
|
*
|
VII. COUPLINGS AND SLEEVES
|
|
1
|
Weight
and center of gravity
|
*
|
|
|
|
2
|
Allowable
misalignment for flexible couplings
|
|
*
|
|
|
3
|
Angular
compliance for flexible couplings
|
*
|
|
|
VIII. HULL
|
|
1
|
Design
and scantlings of double bottom structures
|
|
*
|
|
|
2
|
Draughts
in main operating conditions including full load and ballast conditions
|
|
*
|
