Shaft Aligment Procedure

Wärtsilä France

3 Bd de la loireB.P. 97511

44275 NANTES CEDEX 9France

Tel: +33 (0)2 40 41 16 02Fax: +33 (0)2 40 41 16 00E-mail: [email protected]

TECHNICAL SPECIFICATION

SHAFT ALIGNMENT PROCEDURE

B 27/08/09 R. Hoguin C. Binet

A 30/04/09 R. Hoguin

- 28/04/09 R. Hoguin Y. Tanguy

REVISION Date Written by Checked by Approved by

Project: 5038 Ref. document: B001980290

mailto:[email protected]



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CHANGES MADE TO DATE TO THE SPECIFICATION

Revision Changes made- 1st editionA Temporary support was down 0.5 mm down from Centre line. All change is

highlighted.B Modif. according. to “GL 09-066713/CGur” Notification; . § 3.8.2 / 4.3

revised, § 3.8.4 added, more check added. All change is highlighted.



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CONTENT

1. SUBJECT .............................................................................................................................42. REFERENCES .....................................................................................................................43. alignment data.....................................................................................................................4

3.1. Preliminary notes. ......................................................................................................................... 4

3.1.1. Introduction........................................................................................................................... 43.1.2. Geometrical consideration ..................................................................................................... 5

3.2. Thermal expansion influencing the alignment of the gearbox. ....................................................... 6

3.3. Aft bracket bearing........................................................................................................................ 6

3.4. Stern tube bearings........................................................................................................................ 6

3.5. Inboard bearing ............................................................................................................................. 7

3.6. Temporary supports ...................................................................................................................... 8

3.7. Embarking of the shafts................................................................................................................. 8

3.8. Assembling ................................................................................................................................... 8

3.8.1. First step assembling. ............................................................................................................ 93.8.2. Second step assembling. ........................................................................................................ 93.8.3. Third step assembling. ......................................................................................................... 133.8.4. Assembling data .................................................................................................................. 16

4. Checking of final alignment of the inboard shaftline bearing in afloat condition. ......184.1. Required equipment .................................................................................................................... 18

4.1.1. Special care to be taken ....................................................................................................... 184.1.2. Measurement ....................................................................................................................... 194.1.3. Alignment check ................................................................................................................. 20

4.2. Measurement JL1........................................................................................................................ 23

4.3. Measurement JL2........................................................................................................................ 26

........................................................................................................................................................... 27Appendix 1…………………………………………………………………………………………………..28

Appendix 2…………………………………………………………………………………………………..32



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1. SUBJECT

The purpose of this technical note is to give a procedure for the alignment of the shaft line

bearings of the Colombian Offshore Patrol Vessel, based on the shaft alignment calculations.

2. REFERENCES

Shafting arrangement drawing : DAAN000109 rev C.

Shaft alignment calculations : B001980285 rev 0.

3. ALIGNMENT DATA

Before any set up, the Bearings dimensions have to be checked. The Bearing

clearances have to be calculated from bearings and shaft dimensions.

3.1. Preliminary notes.

3.1.1. Introduction

The proposed alignment procedure is based on the assumption that the alignment is

done from aft to forward end of the shaft line. The alignment of the inboard shaft line

bearings and of the gearbox is assumed to be done with the ship in afloat condition.

This section describes the procedure for assembling the shaft in such way that the

correct alignment is achieved.

This procedure is intended as a general guidance for shipyards using Gap & Sag

method for shaft alignment. The shipyard however will always remain responsible for

the execution and final performance of the shafting system. This has to be done after as

much as possible of the ship’s structure is completed.

In alignment condition, open shaft, there will be no oil film between the shaft and the

Inboard bearing.



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3.1.2. Geometrical consideration

A reference Sight Line shall be used by the Yard, concentric with Stern tube (“SealPerpendicular to shaft” will be ensured). The Aft bracket, Aft and Fwd Stern Tubebearings should be aligned, by the yard, with offsets in relation to this Sight Line aspointed out on the sketch 1. This has to be done after the ship structure is completelyset up.

Fig1:



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The mounting surface for the PSE seal base shall be located according to requirements

of the drawing H78498-01 and the Technical manual for PSE.

3.2. Thermal expansion influencing the alignment of the gearbox.

The alignment procedure is assumed to be made in cold condition at 20° C. the thermal

offset of the gearbox is described in the alignment calculation note B001980285.

3.3. Aft bracket bearing

The Aft bracket bearing housing can be installed parallel to the shaft centre line in the

horizontal plane.

First adjust the bearing centreline exactly on the shaft line centreline. Using jack screws

at each end of the bearing, move the bearing up by half the bearing clearance to

compensate the bearing clearance.

The bearing housing shall be installed with a vertical slope of 0.15*10-3 rad. In this

condition, the relative vertical slope of the shaft in the bearing is in the limit of ±0.3*10-3

rad at all ship speeds.

Move the aft end of the bearing down by 0.04 mm

Move the forward end of the bearing up by 0.04 mm

For Portside & Starboard Aft Bracket bearings, this slope is shown on the Fig1.

The bearing has then the right vertical slope.

Pour the chockfast.

3.4. Stern tube bearings

The aft Stern tube Bearing Housing can be installed parallel to the shaft centre line in

the horizontal plane.



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First adjust the bearing centreline exactly on the shaft-line centreline.

Using jack screws at each end of the bearing, move the bearing up by half the bearing

clearance to compensate the bearing clearance.

The bearing housing shall be installed without a vertical slope.

Pour the chockfast.

For Portside & Starboard Stern tube bearings, this clearance is shown on the Fig1.

3.5. Inboard bearing

The complete Bearing, excepted for the upper housing can be installed parallel to the

shaft centre line in the horizontal plane (refer to Fig 2).

For detail of installation of the bearing see Bearing Supplier manual, reference TM-LSB

{issue C}.

As soon as Gap and Sag and Jack load measurements are achieved, pour the

Chockfast.

Fig: 2



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3.6. Temporary supports

A temporary support shall be installed at the forward end of the Propeller shaft, 840 mm

afterward of the Fwd end of the Propeller shaft. It is used for the connection of the Stern

tube shaft with the propeller shaft.

The second temporary support shall be installed at the forward end of the Intermediate

shaft, 765 mm afterward of the Fwd end of the intermediate shaft. It is used for the

connection of the Stern Tube shaft with the intermediate shaft and the intermediate

shaft with the Gear Box shaft.

The temporary support shall be equipped with a device to measure the load (Hydraulic

jack for instance).

3.7. Embarking of the shafts

Refer to instruction manual.

The Propeller shaft is supported by the aft bracket bearing and the first temporary

support close to the forward end.

The stern tube shaft is supported by the aft and Fwd stern tube bearings.

The intermediate shaft is supported the Inboard bearing and the second temporary

support close to the forward end.

3.8. Assembling

The Gap & Sag dimensions are to be measured very accurately by clock gauges in 0,01

mm. It is most advisable to mount one axial and one radial rotary dial gauges on a

rotating support, turning around the flange or shaft.

Rotate the support of the dial gauge slowly and record the deflection on top, bottom,

port and starboard. The location, where the dial gauge reading is taken must be clearly

marked so the measurement can be re-taken at exactly the same spot.



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The radial measured deflection (top and bottom) divided by two shows the radial offset

(Sag), whereas the recorded value on port and starboard must be equal.

The axial measured deflection (Difference between top and bottom) too can be carried

out by shims measurements that show the axial offset (Gap), whereas the recorded

value on port and starboard must be equal.

3.8.1. First step assembling.

The propeller shaft is set up in its final position, completely assembled. The Stern Tube

Shaft and the Aft sleeve coupling are in its parking position. Connect the oil pipes

Put the propeller shaft and the Stern tube shaft in their final axial position.

Connect the propeller shaft with the Stern Tube shaft by mounting the hydraulic sleeve

coupling. Refer to instruction manual.

Remove the first temporary support.

Insert the non split parts of the PSE seal on the shaft. Refer to instruction manual.

Achieve the final mounting of the PSE seal. Refer to the Technical manual for PSE.

The propeller shaft has to be axially secured in its position and then launch the ship.

Launch the ship.

3.8.2. Second step assembling.

At this stage the ship is afloat.

Put the sleeve coupling in the parking position on the aft end of the Intermediate shaft

which is 350 mm fwd of its final position and temporarily secured by achieving a push

up of approx 16 mm.



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The intermediate shaft is set up in its parking position, supported by the temporary

support and the Inboard bearing, allowing the connection of the oil pipes. Pull the

intermediate shaft in its final position toward the propeller shaft without wearing on the

inboard bearing. Refer to Instruction Manual (IPI: CPP-MP/01439).

Put the Hydraulic Flange coupling in its final position on the Fwd end of the intermediate

shaft.

The Sag dimension is to be measured very accurately by clock gauges in 0.01 mm. It is

most advisable to rigidly mount the radial rotary dial gauge to the end side of the shaft,

slowly rotate and record the deflection on top, bottom, port and starboard.

The location, where the dial gauge reading is taken must be clearly marked so the

measurement can be re-taken at exactly the same spot.



The axial measured deflection (Difference between top and bottom) can be carried out

by shims measurements that show the axial offset (Gap).

The axial measured deflection (Difference between top and bottom) shows the axial

offset ( Gap).

By adjusting the vertically the Inboard bearing and the Temporary support, the distance

between the shafts end has to be as stated in the following fig:



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Fig: 3

With Gap = 0.11 mm and Sag= 2.63 mm.

A pre-position of the Gear Box has to be achieved, With Gap = 0.15 mm and Sag= 1.39

mm between the hydraulic flange coupling and the GB flange.

The input files of the “Gap & Sag” calculation is carried forward in the appendix1.

The coordinates system which is used for all calculation is described the appendix 2.



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Connect the Stern Tube shaft with the Intermediate shaft by mounting the hydraulic

sleeve coupling. Refer to instruction manual.

3.8.3. Third step assembling.

The propeller and intermediate shaft are set up in their final position, completely

assembled.

Check the load of the temporary support that should be ~ 8 kN.

Put the Hydraulic Flange coupling in the parking position on the Fwd end of the

intermediate shaft which is ~ {135 mm<L1< 185 mm} aft of its final position and

temporarily secured by achieving a push up of approx 8 mm (L1 is the measured

dimension as stated in drawing DAAN000166).

Fasten the oil pipes together. Refer to Instruction Manual (IPI: CPP-MP/01439).

Put the flange coupling in the final position -10 mm Afterward, on the Fwd end of the

Intermediate shaft.

The yard can now proceed to position and align the gearbox to the shaft line until the

calculated Gap and Sag values have been reached.

The Gap and Sag dimension are to be measured very accurately by clock gauges in

0.01 mm. It is most advisable to rigidly mount one radial and one axial rotary dial gauge



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to the flange of the gearbox output and rotate the gearbox output shaft slowly and

record the deflection on top, bottom, port and starboard. The location, where the dial

gauge reading is taken must be clearly marked so the measurement can be re-taken at

exactly the same spot.



The axial measured deflection (Difference between top and bottom) shows the axial

offset ( Gap).

By adjusting the vertically the Gearbox, the distance between the flange ends has to be

as stated in the following fig:

Fig: 4

With Gap = 10.02 mm and Sag= 1.66 mm.



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As the dimension between the Fwd end of the intermediate shaft and the Gear Box

flange is able to vary from 135 to 185 mm, the Gap & Sag are calculated and the

tolerances are summarized in the following table:

TABLE 1

L1 (GB/ Shaft space) 135 mm 160 mm 185 mmGap (axial offset) 10.02 mm 10.02 mm 10.02 mmSag (radial offset) 1.67 mm 1.66 mm 1.65 mm

After measurement, the coupling has to be pulled along the shaft in its final position and

the flanges of the coupling and of the gear box have to be connected. Refer to

instruction manual.

Remove the temporary support then achieve the complete set up of the Inboard Bearing

according to the manual, reference TM-LSB. Adjusted by jack bolts, the bearing will be

set parallel to the centre line of the shaft thus resulting an absolute slope of -0.37 mrad

with the reference Sight Line described in § 3.1.2.

3.8.4. Assembling data

All the measurement achieved during the assembling steps is noted in the following

table:



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TABLE 2

Units mm; Prop/Inter shaft Inter/GB shaft FC spa. LoadkN Gap Sag Gap Sag L1 TS1

Measur. §3.8.2 /Measur. §3.8.3 / /

__________



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4. CHECKING OF FINAL ALIGNMENT OF THE INBOARD SHAFTLINE BEARING INAFLOAT CONDITION.

In order to check the alignment, the jack loads test close to the inboard shaft line’s

bearings and to the Aft Bearing of the Gear box can be performed.

4.1. Required equipment

2 Dial gauges with magnetic supports with an accuracy of 0.01mm and a total

capacity of 3 mm

The hydraulic or screw jacks with a capacity of 20000 N, a minimum stroke of 20

mm.

The pressure gauges with a capacity corresponding to the required pressure to

have a force of 20000 N in the jack

or the load cells with capacity of 20000 N in the jacks, the required accuracy for

these tools is 1% of the total range.

1 set of filler gauges 0.025 mm to 0.5 mm as long as possible

4.1.1. Special care to be taken

The measurement of the jack load will only be valid if the following preliminary checks have

been done:

The shaft line is laying on the bearings placed according to the drawing

The jack is positioned at the indicated position

During the lift of the shaft, it will not come in contact with the top part of one

bearing

During the lift of the shaft, it will not come in contact with any metallic part of a

shaft accessory as shaft seal, bulkhead seal, etc…



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4.1.2. Measurement

The jack is placed below the shaft

One dial gauge is placed above the shaft opposite to the jack (12 o’clock)

One dial gauge is placed at the same location at 3 o’clock position.

Fig: 5

It is wise to perform an initial lifting of the shaft in order to establish oil film between

shaft and bearing surface before recording the results.

Adjust the dial gauge to zero.

Jack up the shaft by steps of 0.01 up to 0.3 mm for JL1 and up to 0.1 mm for JL2.

At each step, record the lift and the load on the jack

Pull the shaft down by steps corresponding to the reverse direction of jacking up to

zero position

At each step, record the indication of the dial gauge and the load on the jack.

Plot the graph lift versus load in up and down directions

Compare the graphs (jacking up and jacking down) with the theoretical one.

The shape of the graph shall be similar to the shape of the theoretical one.

Jack Load MeasurementMeasurement

Load in N

Measurement in mm

Bearing



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The slope of the upper part of the graph (second segment) shall be the same as the

theoretical one with a tolerance of ± 10%

Draw a line between the upper parts of the jacking up and jacking down graphs.

The measured jack load can be read at the intersection of this line with the load axis.

4.1.3. Alignment check

The exact location of the first Jack-1’s load measurement shall be 320 mm Forwardof the centre line of the Inboard bearing.

Fig: 6



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The theoretical jack load value and the correction factor to get the actual bearing load

are given below:

Fig: 7

The exact location of the jack 2’s load measurement shall be 43 mm forward of the

forward side of the Gear box flange. The values are given as follow:



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Fig: 8

The following table can be used to record the results of the jack load test.

The following theoretical graph can be used to plot the measured values and have a

direct comparison of the slope of the graphs.



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4.2. Measurement JL1Jack load measurement 320 mm Fwd of the Inboard bearing – page 1/2.

Ambient temperature ----°C Sunshine on hull Yes / No

Vessel afloat Yes / No Propeller submerged Fully / ----%

Draft aft -------m Draft fwd -------m

Wanted lift Dial gauge readinglifting

Measuredlifting force

lifting

Dial gauge readinglowering


lowering

1/100 mm Vertical1/100 mm

Horizontal1/100 mm N Vertical

1/100 mmHorizontal1/100 mm N

0123456789

1011121314151617181920



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Jack load measurement 320 mm Fwd of the Inboard bearing – page 2/2.






lifting



lowering




21222324252627282930

TECHNICAL SPECIFICATIONSHAFT ALIGNMENT PROCEDURE

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0PV. Jack load Measurement 320 mm Forward ofthe Inboard bearing,

0

0,02

0,04

0,06

0,08

0,1

0,12

0,14

0,16

0,18

0,2

0 2000 4000 6000 8000 10000 12000

Jack Load (N)

Jack

offs

et (m

m) Load Transfer

Jack Influence Numberzero lift load

B001980290/ Rev.: B /

4.3. Measurement JL2Jack load measurement 43 mm Fwd of the forward side of GB flange/ page 1.






lifting



lowering




0123456789

101112131415

After the Jack load measurement has been performed, a final report showing the

alignment data as per the Table 2 (§ 3.8.4) and Jack Load measurement has to be

drawn up. This document is submitted to Wärtsilä, when the results are accepted,

pour the chockfast and complete the final assembly of the Inboard bearing and Gear

box.



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0PV. Jack load Measurement 43 mm Fwdthe Fwd side of the GB flange,

0

0,01

0,02

0,03

0,04

0 2000 4000 6000 8000 10000

Jack Load (N)

Jack

off

set (

mm

) Load TransferJack Influence Numberzero lift load



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Appendix 1================================= INPUT =================================== 1 /analysis 2 /************General information****************/ 3 installation="5038" 4 engine_builder="Wärtsilä" 5 shipyard="COLOMBIA" 6 hullnr="59" 7 class="GL; Noations +100 N5 Aux NH 'Offshore Patrol Vessel' +MC AUT Aux NM." 8 calcnr="Proc-Alignt-water-2009-04-23" 9 shaft_drawing="DAAN000109" 10 name="Richard Hoguin" 11 12 /****************Gap & Sag Jack load ********/ 13 type=shafting 14 openshaft=(OKC2,FL2) 15 openshaft=(FL2) 16 jackplot=(Inb4,JL1) 17 jackplot=(gb_b5,JL2) 18 19 20 /***********Modelling of Shaft Line************/ 21 /node 22 od_b 23 sh_end 24 n14 25 gb_b6 y_clear=0.05e-3y_offset=(0.025e-3-1.7e-3) 26 ge_whe2 27 ge_whe 28 ge_whe1 29 gb_b5 y_clear=0.05e-3y_offset=(0.025e-3-1.7e-3) 30 n13 31 JL2 32 FL3 33 FL2 34 FL1 35 FC1_2 36 FC1_1 37 TS2 y_clear=0.1e-6 38 con10 39 n12 40 ND 41 ND_1 42 43 con9 44 n11 45 JL1 46 n10 47 con8 48 Inb4 y_clear=0.6e-3 y_offset=(0.3e-3) 49 Inb4_1 50 conB4 51 con7 52 n9



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53 OKC2 54 n8 55 con6 56 m_lin3 57 n7 58 PSE 59 fwd_b3 y_clear=0.8e-3 y_offset=(0.4e-3) 60 fwd5 61 con4 62 m_lin2 63 mid_b2 y_clear=0.8e-3 y_offset=(0.4e-3) 64 m_lin1 65 OKC1 66 li2 67 con2 68 n5 69 con1 70 n4 71 aft_b1_2 72 n3 73 aft_b1 74 b1_stat y_clear=0.85e-3 y_offset=(0.425e-3) 75 aft_b1_1 76 fl_cov 77 sha_flan 78 n2 79 prop 80 n1 81 82 83 /element 84 /***********Propeller Shaft***************************************************/ 85 shaft=(n1,prop) l=0.467 da=0.580 di=0.240 rho=1 86 shaft=(prop,n2) l=0.258 da=0.586 di=0.75*0.586 rho=1 87 shaft=(n2,sha_flan) l=0.075 da=0.561 di=0.104 rho=1 88 shaft=(sha_flan,fl_cov) l=0.039 da=0.230 di=0.100 rho=53320 89 shaft=(fl_cov,aft_b1_1) l=0.261 da=0.230 di=0.100 rho=9860 90 shaft=(aft_b1_1,b1_stat) l=0.138 da=0.230 di=0.065 rho=9510 91 shaft=(b1_stat,aft_b1) l=0.122 da=0.230 di=0.065 rho=9510 92 shaft=(aft_b1,n3) l=0.045 da=0.230 di=0.065 rho=9510 93 shaft=(n3,aft_b1_2) l=0.250 da=0.229 di=0.065 rho=9600 94 shaft=(aft_b1_2,n4) l=0.350 da=0.229 di=0.065 rho=9600 95 cone=(n4,con1) l=0.038 da_fwd=0.215 da_aft=0.229 di=0.065 rho=7100 96 shaft=(con1,n5) l=3.292 da=0.215 di=0.065 rho=7120 97 cone=(n5,con2) l=0.030 da_fwd=0.222 da_aft=0.215 di=0.065 rho=7110 98 shaft=(con2,li2) l=0.200 da=0.222 di=0.065 rho=9110 99 shaft=(li2,OKC1) l=0.600 da=0.220 di=0.065 rho=7110 100 /***************Stern tube Shaft************************************************/ 101 shaft=(OKC1,m_lin1) l=0.735 da=0.22 di=0.065 rho=7110 102 shaft=(m_lin1,mid_b2) l=0.402 da=0.221 di=0.065 rho=9200 103 shaft=(mid_b2,m_lin2) l=0.398 da=0.221 di=0.065 rho=9200 104 cone=(m_lin2,con4)l=0.029 da_fwd=0.215 da_aft=0.221 di=0.065rho=7110 105 shaft=(con4,fwd5) l=5.741 da=0.215 di=0.065 rho=7110 106 shaft=(fwd5,fwd_b3) l=0.369 da=0.215 di=0.065 rho=9770 107 shaft=(fwd_b3,PSE) l=0.427 da=0.215 di=0.065 rho=9770



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108 /******************** SW ===> Air ******************************/ 109 shaft=(PSE,n7) l=0.050 da=0.215 di=0.065 rho=16430 110 shaft=(n7,m_lin3) l=0.054 da=0.215 di=0.065 rho=11290 111 cone=(m_lin3,con6)l=0.039da_fwd=0.200 da_aft=0.215 di=0.065rho=8280 112 shaft=(con6,n8) l=0.179 da=0.200 di=0.065 rho=8320 113 shaft=(n8,OKC2) l=0.577 da=0.200 di=0.065 rho=8320 114 shaft=(OKC2,n9) l=0.600 da=0.200 di=0.065 rho=8320 115 cone=(n9,con7) l=0.024 da_fwd=0.19 da_aft=0.2 di=0.065 rho=8350 116 shaft=(con7,conB4) l=1.169 da=0.19 di=0.065 rho=8380 117 cone=(conB4,Inb4_1) l=0.016 da_fwd=0.195 da_aft=0.19 di=0.065rho=8360 118 shaft=(Inb4_1,Inb4) l=0.3 da=0.195 di=0.065 rho=8350 119 shaft=(Inb4,con8) l=0.3 da=0.195 di=0.065 rho=8350 120 cone=(con8,n10) l=0.017 da_fwd=0.19 da_aft=0.195 di=0.065 rho=8360 121 shaft=(n10,JL1) l=0.003 da=0.19 di=0.065 rho=8380 122 shaft=(JL1,n11) l=2.383 da=0.19 di=0.065 rho=8380 123 cone=(n11,con9) l=0.017 da_fwd=0.195 da_aft=0.190 di=0.065 rho=8360 124 shaft=(con9,ND_1) l=0.1975da=0.195 di=0.065 rho=8350 125 shaft=(ND_1,ND) l=0.05 da=0.195 di=0.065 rho=11800 126 shaft=(ND,n12) l=0.1535da=0.195 di=0.065 rho=8350 127 cone=(n12,con10) l=0.017da_fwd=0.2 da_aft=0.195 di=0.065 rho=8340 128 shaft=(con10,TS2) l=0.218 da=0.200 di=0.065 rho=8320 129 shaft=(TS2,FC1_1) l=0.219 da=0.200 di=0.065 rho=8320 130 shaft=(FC1_1,FC1_2) l=0.554 da=0.200 di=0.065 rho=21320 131 shaft=(FC1_2,FL1) l=0.112 da=0.315 di=0.287 rho=13020 132 flange=(FL1,FL2) l=0.04 da=0.46 di=0.287 rho=8520 133 /************************************G-Box****************************/ 134 flange=(FL2,FL3) l=0.05 da=0.46 di=0.065 rho=7930 135 shaft=(FL3,JL2) l=0.043 da=0.24 di=0.065 rho=8170 136 shaft=(JL2,n13) l=0.122 da=0.24 di=0.065 rho=8170 137 shaft=(n13,gb_b5) l=0.075 da=0.28 di=0.065 rho=8080 138 shaft=(gb_b5,ge_whe1) l=0.115 da=0.28 di=0.065 rho=8080 139 shaft=(ge_whe1,ge_whe) l=0.125 da=0.29 di=0.065 rho=8060 140 shaft=(ge_whe,ge_whe2) l=0.125 da=0.29 di=0.065 rho=8060 141 shaft=(ge_whe2,gb_b6) l=0.105 da=0.28 di=0.065 rho=8080 142 shaft=(gb_b6,n14) l=0.085 da=0.28 di=0.065 rho=8080 143 shaft=(n14,sh_end) l=0.314 da=0.14 di=0.065 rho=8950 144 shaft=(sh_end,od_b) l=0.3 da=0.148 di=0.07 rho=1 145 146 /***************************************mass************************/ 147 mass=(ge_whe) m=995 jx=106.3 148 mass=(od_b) m=44 jx=1.5 149 150 sleevecpl=(OKC1) m=265 jx=5.9 jz=2.95 e_mass=0.04dx_open=0.350 151 sleevecpl=(OKC2) m=205 jx=4.01 jz=2. e_mass=-0.043dx_open=0.35 152 153 /*************************bearing************************************/ 154 bearing=(b1_stat) c_stat=5.0e9 155 bearing=(mid_b2) c_stat=3.05e9 156 bearing=(fwd_b3) c_stat=1.83e9 157 bearing=(Inb4) c_stat=1e9 158 bearing=(gb_b5) c_stat=5e9 159 bearing=(gb_b6) c_stat=5e9 160 bearing=(TS2) c_support=1e9 161 162 /******************* Hub=4D650D ***************************************/



B001980290/ Rev.: B /

Wärtsilä Defence

163 164 propeller=(prop) blade=4 da=2.6 pdratio=1.288 aratio=0.76 165 m_hub=1262 e_hub=0.01421 m_blade=154 e_blade=0.051 166 buoyancy= 0.13jx=650 jx_air=426 qv=0.01

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B001980290/ Rev.: B /

Wärtsilä Defence

Appendix 2

Coordinates System.

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Shaft Aligment Procedure

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Transcript of Shaft Aligment Procedure