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1 PERHITUNGAN STABILITAS ( FINAL STABILITY ) NAMA PONTON : PONTON 8.4m TYPE : PONTON CATAMARAN PEMILIK : - I. Ukuran Utama Ponton : Panjang seluruhnya (Loa) = 8.4 m Panjang garis tegak (Lpp) = 8.4 m Lebar (B) = 6.2 m Tinggi (H) = 1.4 m II. Penilaian Stabilitas Penilaian stabilitas didasarkan pada tabel analisa stabilitas dengan berbagai kondisi simulasi operasi. III. Berat dan Tititk berat kapal kosong Berat dan titik berat kapal kosong dibagi menjadi dua bagian, yaitu : 1. Berat konstruksi 2. Berat excavator dan beban yang diangkat excavator. Perhitungan berat dan titik berat pada tiap-tiap bagian konstruksi dihitung berdasarkan estimasi berat konstruksi, berat excavator dihitung dari data spesifikasi dari maker, perlengkapan dihitung berdasarkan perkiraan. Untuk perhitungan tersebut didasarkan pada gambar dan dokumen pendukung antara lain sebagai berikut : 1. Rencana Umum 2. Rencana konstruksi 3. Data spesifikasi excavator. Dengan hasil sebagai berikut : Berat kapal kosong = 11 ton (approx.) Titik berat terhadap garis tegak buritan ( AP-G ) = 4.2 ton (approx.) Titik berat terhadap dasar ( KG ) = 0.75 m (approx.)

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analisa stabilitas ponton yang bertujuan untuk mengetahui batas aman olah gerak excavator.

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Page 1: analisa Stabilitas Ponton 8.4m

1

PERHITUNGAN STABILITAS ( FINAL STABILITY )

NAMA PONTON : PONTON 8.4m

TYPE : PONTON CATAMARAN

PEMILIK : -

I. Ukuran Utama Ponton :

Panjang seluruhnya (Loa) = 8.4 m

Panjang garis tegak (Lpp) = 8.4 m

Lebar (B) = 6.2 m

Tinggi (H) = 1.4 m

II. Penilaian Stabilitas

Penilaian stabilitas didasarkan pada tabel analisa stabilitas dengan berbagai kondisi

simulasi operasi.

III. Berat dan Tititk berat kapal kosong

Berat dan titik berat kapal kosong dibagi menjadi dua bagian, yaitu :

1. Berat konstruksi

2. Berat excavator dan beban yang diangkat excavator.

Perhitungan berat dan titik berat pada tiap-tiap bagian konstruksi dihitung berdasarkan

estimasi berat konstruksi, berat excavator dihitung dari data spesifikasi dari maker,

perlengkapan dihitung berdasarkan perkiraan.

Untuk perhitungan tersebut didasarkan pada gambar dan dokumen pendukung antara

lain sebagai berikut :

1. Rencana Umum

2. Rencana konstruksi

3. Data spesifikasi excavator.

Dengan hasil sebagai berikut :

Berat kapal kosong = 11 ton (approx.)

Titik berat terhadap garis tegak buritan ( AP-G ) = 4.2 ton (approx.)

Titik berat terhadap dasar ( KG ) = 0.75 m (approx.)

Page 2: analisa Stabilitas Ponton 8.4m

2

IV. Rencana Tangki-tangki dan Perlengkapan

Rencana tangki-tangki dan perlengkapan untuk perhitungan stabilitas ini dapat dilihat

pada gambar rencana umum.

V. Perhitungan stabilitas

Perhitungan stabilitas yang dilakukan dengan berbagai simulasi kondisi operasi

ponton, adalah sebagai berikut :

1. Kondisi ponton kosong dengan excavator diatasnya, tanpa beban kerja excavator.

2. Kondisi ponton kosong dengan excavator diatasnya, dan excavator bekerja pada

maksimum reach at ground level.

3. Kondisi ponton kosong dengan excavator diatasnya, dan excavator bekerja pada

maksimum loadingheight.

4. Kondisi ponton kosong dengan excavator diatasnya, dan excavator bekerja pada

maksimum depth cut.

Masing-masing dihitung dengan kondisi siap compartement / tangki yang ada pada

ponton dalam kondisi kosong tanpa muatan atau beban didalamnya.

Page 3: analisa Stabilitas Ponton 8.4m

3

HYDRASTATIC TABEL

Page 4: analisa Stabilitas Ponton 8.4m

4

Hydrostatics - FINISH PLAN_PONTON PU_8.4_hydrostatic tables Damage Case - Intact Fixed Trim = 0 m (+ve by stern) Relative Density (specific gravity) = 1.025; (Density = 1.0252 tonne/m^3) Draft Amidsh. m 0.000 0.156 0.311 0.467 Displacement tonne 0.0000 4.593 9.72 15.38 Heel to Starboard degrees

0.0 0.0 0.0 0.0

Draft at FP m 0.000 0.156 0.311 0.467 Draft at AP m 0.000 0.156 0.311 0.467 Draft at LCF m 0.000 0.156 0.311 0.467 Trim (+ve by stern) m 0.000 0.000 0.000 0.000 WL Length m 7.200 7.511 7.822 8.133 WL Beam m 0.000 5.459 5.719 5.978 Wetted Area m^2 0.000 33.836 40.630 47.727 Waterpl. Area m^2 0.000 30.490 33.780 37.233 Prismatic Coeff. 0.000 0.976 0.959 0.943 Block Coeff. 0.000 0.945 0.902 0.863 Midship Area Coeff. 0.000 0.968 0.940 0.915 Waterpl. Area Coeff. 0.000 1.000 1.000 1.000 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

KB m 0.000 0.079 0.161 0.245 KG m 0.700 0.700 0.700 0.700 BMt m 0.000 22.348 12.675 9.530 BML m 0.000 31.994 18.176 13.686 GMt m -0.700 21.727 12.136 9.075 GML m -0.700 31.373 17.637 13.231 KMt m 0.000 22.427 12.836 9.775 KML m 0.000 32.073 18.337 13.931 Immersion (TPc) tonne/cm

0.000 0.313 0.346 0.382

MTc tonne.m 0.000 0.172 0.204 0.242 RM at 1deg = GMt.Disp.sin(1) tonne.m

0.000 1.742 2.058 2.435

Max deck inclination deg

0.0 0.0 0.0 0.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0

Page 5: analisa Stabilitas Ponton 8.4m

5

Draft Amidsh. m 0.622 0.778 0.933 1.089 Displacement tonne 21.59 28.02 34.45 40.88 Heel to Starboard degrees

0.0 0.0 0.0 0.0

Draft at FP m 0.622 0.778 0.933 1.089 Draft at AP m 0.622 0.778 0.933 1.089 Draft at LCF m 0.622 0.778 0.933 1.089 Trim (+ve by stern) m 0.000 0.000 0.000 0.000 WL Length m 8.400 8.400 8.400 8.400 WL Beam m 6.200 6.200 6.200 6.200 Wetted Area m^2 55.027 61.747 68.467 75.187 Waterpl. Area m^2 40.320 40.320 40.320 40.320 Prismatic Coeff. 0.933 0.948 0.957 0.964 Block Coeff. 0.840 0.872 0.893 0.908 Midship Area Coeff. 0.900 0.920 0.933 0.943 Waterpl. Area Coeff. 1.000 1.000 1.000 1.000 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

KB m 0.332 0.416 0.498 0.579 KG m 0.700 0.700 0.700 0.700 BMt m 7.830 6.033 4.907 4.135 BML m 11.256 8.673 7.055 5.945 GMt m 7.461 5.749 4.705 4.014 GML m 10.888 8.390 6.853 5.824 KMt m 8.161 6.449 5.405 4.714 KML m 11.588 9.090 7.553 6.524 Immersion (TPc) tonne/cm

0.413 0.413 0.413 0.413

MTc tonne.m 0.280 0.280 0.281 0.283 RM at 1deg = GMt.Disp.sin(1) tonne.m

2.812 2.812 2.829 2.864

Max deck inclination deg

0.0 0.0 0.0 0.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0

Draft Amidsh. m 1.244 1.400 Displacement tonne 47.31 53.7 Heel to Starboard degrees

0.0 0.0

Draft at FP m 1.244 1.400 Draft at AP m 1.244 1.400 Draft at LCF m 1.244 1.400 Trim (+ve by stern) m 0.000 0.000 WL Length m 8.400 8.400

Page 6: analisa Stabilitas Ponton 8.4m

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WL Beam m 6.200 6.200 Wetted Area m^2 81.907 88.627 Waterpl. Area m^2 40.320 40.320 Prismatic Coeff. 0.968 0.972 Block Coeff. 0.920 0.929 Midship Area Coeff. 0.950 0.955 Waterpl. Area Coeff. 1.000 1.000 LCB from Amidsh. (+ve fwd) m

0.000 0.000

LCF from Amidsh. (+ve fwd) m

0.000 0.000

KB m 0.659 0.738 KG m 0.700 0.700 BMt m 3.573 3.146 BML m 5.137 4.523 GMt m 3.532 3.184 GML m 5.096 4.561 KMt m 4.232 3.884 KML m 5.796 5.261 Immersion (TPc) tonne/cm

0.413 0.413

MTc tonne.m 0.287 0.292 RM at 1deg = GMt.Disp.sin(1) tonne.m

2.917 2.986

Max deck inclination deg

0.0 0.0

Trim angle (+ve by stern) deg

0.0 0.0

Page 7: analisa Stabilitas Ponton 8.4m

7

0

0.25

0.5

0.75

1

1.25

0 10 20 30 40 50 60 70 80 90

0 10 20 30 40 50 60 70 80 90

-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

0 4 8 12 16 20 24 28 32 36

0 5 10 15 20 25 30 35 40 45

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45

Disp.

Wet. Area

WPA

LCB

LCF

KB

KMt

KML

Immersion (TPc)

MTc

Displacement tonne

Draft    m

Area m^2

LCB, LCF, KB m

KMt m

KML m

Immersion tonne/cm

Moment to Trim tonne.m

Page 8: analisa Stabilitas Ponton 8.4m

8

PERHITUNGAN STABILITAS

Page 9: analisa Stabilitas Ponton 8.4m

9

Stability Calculation - FINISH PLAN_PONTON PU_8.4m Loadcase - FINISH PLAN_loadcase_no load_8.4m.htk Damage Case - Intact Free to Trim Relative Density (specific gravity) = 1.025; (Density = 1.0252 tonne/m^3) Fluid analysis method: Use corrected VCG Item Name

Quantity Weight tonne

Long.Arm m

Vert.Arm m Trans.Arm m

FS Mom.

tonne.m Lightship 1 11.00 4.200 0.750 0.000 0.000 APT.S 0% 0.0000 1.249 0.802 1.861 0.000 MT.S 0% 0.0000 4.200 0.774 1.855 0.000 FPT.S 0% 0.0000 7.151 0.802 1.861 0.000 APT.P 0% 0.0000 1.249 0.802 -1.861 0.000 MT.P 0% 0.0000 4.200 0.774 -1.855 0.000 FPT.P 0% 0.0000 7.151 0.802 -1.861 0.000 Excavator 1 21.45 4.200 1.500 0.000 0.000 Total

Weight= 32.45 LCG=4.

200 VCG=1.246 TCG=0.0

00 0

FS corr.=0 VCG fluid=1.246

-0.5

-0.25

0

0.25

0.5

0.75

1

1.25

0 10 20 30 40 50 60 70 80 90

Max GZ = 1.164 m at 22.7 deg.3.1.2.4: Initial GMt GM at 0.0 deg = 4.437 m

Heel to Starboard deg.

GZ    m

Heel to Starboard degrees

0.0 10.0 20.0 30.0 40.0 50.0

Displacement tonne

32.45 32.45 32.45 32.45 32.45 32.45

Draft at FP m 0.885 0.879 0.920 1.122 1.449 1.856

Page 10: analisa Stabilitas Ponton 8.4m

10

Draft at AP m 0.885 0.879 0.920 1.122 1.449 1.856 WL Length m 8.400 8.400 8.400 8.400 8.400 8.400 Immersed Depth m

0.885 1.317 1.754 2.272 2.781 3.184

WL Beam m 6.200 6.098 4.386 2.383 2.222 2.073 Wetted Area m^2 66.374 65.915 75.707 82.145 81.774 81.893 Waterpl. Area m^2

40.320 38.958 23.260 11.337 10.688 10.724

Prismatic Coeff. 0.955 0.955 0.963 0.967 0.968 0.969 Block Coeff. 0.887 0.612 0.742 1.155 1.011 0.887 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

VCB from DWL m

-0.412 -0.479 -0.711 -1.108 -1.539 -1.904

GZ m 0.000 0.761 1.149 1.074 0.856 0.611 LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

TCF to zero pt. m 0.000 0.303 -0.377 -0.945 -0.634 -0.316 Max deck inclination deg

0.0 10.0 20.0 30.0 40.0 50.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0 0.0 0.0

Heel to Starboard degrees

60.0 70.0 80.0 90.0

Displacement tonne

32.45 32.45 32.45 32.45

Draft at FP m 2.438 3.459 6.324 N/A Draft at AP m 2.438 3.459 6.324 N/A WL Length m 8.400 8.400 8.400 8.400 Immersed Depth m

3.604 3.891 4.047 4.080

WL Beam m 1.916 1.746 1.572 1.500 Wetted Area m^2 82.525 83.860 83.972 84.077 Waterpl. Area m^2

11.467 13.021 12.424 12.236

Prismatic Coeff. 0.970 0.971 0.973 0.974 Block Coeff. 0.739 0.607 0.611 0.616 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

VCB from DWL m

-2.192 -2.390 -2.505 -2.546

GZ m 0.348 0.078 -0.193 -0.459 LCF from 0.000 0.000 0.000 0.000

Page 11: analisa Stabilitas Ponton 8.4m

11

Amidsh. (+ve fwd) m TCF to zero pt. m 0.021 0.385 0.585 0.766 Max deck inclination deg

60.0 70.0 80.0 90.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0

Code Criteria Value Units Actual Status A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 30

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

30.0 deg 30.0

angle of vanishing stability

72.9 deg

shall not be less than (>=)

3.151 m.deg 25.318 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 40

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first downflooding angle

n/a deg

Page 12: analisa Stabilitas Ponton 8.4m

12

angle of vanishing stability

72.9 deg

shall not be less than (>=)

5.157 m.deg 34.999 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 30 to 40

Pass

from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first downflooding angle

n/a deg

angle of vanishing stability

72.9 deg

shall not be less than (>=)

1.719 m.deg 9.680 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.2: Max GZ at 30 or greater

Pass

in the range from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

180.0 deg 180.0

angle of max. GZ

22.7 deg

Page 13: analisa Stabilitas Ponton 8.4m

13

shall not be less than (>=)

0.200 m 1.074 Pass

Intermediate values

angle at which this GZ occurs

deg 30.0

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.3: Angle of maximum GZ

Fail

shall not be less than (>=)

25.0 deg 22.7 Fail

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.4: Initial GMt

Pass

spec. heel angle

0.0 deg

shall not be less than (>=)

0.150 m 4.437 Pass

Page 14: analisa Stabilitas Ponton 8.4m

14

Stability Calculation - FINISH PLAN_PONTON PU_8.5m Loadcase - FINISH PLAN_loadcase_max. loading heigh_8.4m.htk Damage Case - Intact Free to Trim Relative Density (specific gravity) = 1.025; (Density = 1.0252 tonne/m^3) Fluid analysis method: Use corrected VCG Item Name

Quantity Weight tonne

Long.Arm m

Vert.Arm m Trans.Arm m

FS Mom.

tonne.m Lightship 1 11.00 4.200 0.750 0.000 0.000 APT.S 0% 0.0000 1.249 0.802 1.861 0.000 MT.S 0% 0.0000 4.200 0.774 1.855 0.000 FPT.S 0% 0.0000 7.151 0.802 1.861 0.000 APT.P 0% 0.0000 1.249 0.802 -1.861 0.000 MT.P 0% 0.0000 4.200 0.774 -1.855 0.000 FPT.P 0% 0.0000 7.151 0.802 -1.861 0.000 Excavator 1 21.45 4.200 1.500 0.000 0.000 Beban Kerja

1 1.000 4.200 6.600 -4.900 0.000

Total Weight=

33.45 LCG=4.200

VCG=1.406 TCG=-0.146

0

FS corr.=0 VCG fluid=1.406

-0.75

-0.5

-0.25

0

0.25

0.5

0.75

1

1.25

0 10 20 30 40 50 60 70 80 90

Max GZ = 1.174 m at 20.9 deg.3.1.2.4: Initial GMt GM at 0.0 deg = 4.134 m

Heel to Starboard deg.

GZ    m

Heel to Starboard degrees

0.0 10.0 20.0 30.0 40.0 50.0

Displacement 33.45 33.45 33.45 33.45 33.45 33.45

Page 15: analisa Stabilitas Ponton 8.4m

15

tonne Draft at FP m 0.909 0.904 0.965 1.215 1.560 1.988 Draft at AP m 0.909 0.904 0.965 1.215 1.560 1.988 WL Length m 8.400 8.400 8.400 8.400 8.400 8.400 Immersed Depth m

0.909 1.342 1.796 2.352 2.866 3.270

WL Beam m 6.200 6.117 4.344 2.523 2.324 2.145 Wetted Area m^2 67.419 67.023 78.384 84.329 83.912 84.049 Waterpl. Area m^2

40.320 39.179 22.958 12.896 12.146 12.177

Prismatic Coeff. 0.956 0.956 0.963 0.966 0.968 0.969 Block Coeff. 0.890 0.617 0.758 1.018 0.895 0.789 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

VCB from DWL m

-0.424 -0.489 -0.731 -1.154 -1.577 -1.931

GZ m 0.146 0.857 1.171 1.041 0.796 0.526 LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

TCF to zero pt. m 0.000 0.291 -0.538 -0.989 -0.647 -0.300 Max deck inclination deg

0.0 10.0 20.0 30.0 40.0 50.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0 0.0 0.0

Heel to Starboard degrees

60.0 70.0 80.0 90.0

Displacement tonne

33.45 33.45 33.45 33.45

Draft at FP m 2.597 3.678 6.776 N/A Draft at AP m 2.597 3.678 6.776 N/A WL Length m 8.400 8.400 8.400 8.400 Immersed Depth m

3.683 3.966 4.125 4.160

WL Beam m 1.962 1.773 1.586 1.500 Wetted Area m^2 84.765 85.341 85.455 85.560 Waterpl. Area m^2

13.011 13.021 12.424 12.236

Prismatic Coeff. 0.970 0.971 0.973 0.974 Block Coeff. 0.660 0.614 0.618 0.623 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

VCB from DWL m

-2.205 -2.392 -2.508 -2.549

Page 16: analisa Stabilitas Ponton 8.4m

16

GZ m 0.242 -0.048 -0.339 -0.620 LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

TCF to zero pt. m 0.068 0.358 0.571 0.766 Max deck inclination deg

60.0 70.0 80.0 90.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0

Code Criteria Value Units Actual Status A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 30

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

30.0 deg 30.0

angle of vanishing stability

68.3 deg

shall not be less than (>=)

3.151 m.deg 27.063 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 40

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first n/a deg

Page 17: analisa Stabilitas Ponton 8.4m

17

downflooding angle

angle of vanishing stability

68.3 deg

shall not be less than (>=)

5.157 m.deg 36.272 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 30 to 40

Pass

from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first downflooding angle

n/a deg

angle of vanishing stability

68.3 deg

shall not be less than (>=)

1.719 m.deg 9.209 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.2: Max GZ at 30 or greater

Pass

in the range from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

180.0 deg 180.0

Page 18: analisa Stabilitas Ponton 8.4m

18

angle of max. GZ

20.9 deg

shall not be less than (>=)

0.200 m 1.041 Pass

Intermediate values

angle at which this GZ occurs

deg 30.0

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.3: Angle of maximum GZ

Fail

shall not be less than (>=)

25.0 deg 20.9 Fail

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.4: Initial GMt

Pass

spec. heel angle

0.0 deg

shall not be less than (>=)

0.150 m 4.134 Pass

Page 19: analisa Stabilitas Ponton 8.4m

19

Stability Calculation - FINISH PLAN_PONTON PU_8.4m Loadcase - FINISH PLAN_loadcase_max. reach_8.4m.htk Damage Case - Intact Free to Trim Relative Density (specific gravity) = 1.025; (Density = 1.0252 tonne/m^3) Fluid analysis method: Use corrected VCG Item Name

Quantity Weight tonne

Long.Arm m

Vert.Arm m Trans.Arm m

FS Mom.

tonne.m Lightship 1 11.00 4.200 0.750 0.000 0.000 APT.S 0% 0.0000 1.249 0.802 1.861 0.000 MT.S 0% 0.0000 4.200 0.774 1.855 0.000 FPT.S 0% 0.0000 7.151 0.802 1.861 0.000 APT.P 0% 0.0000 1.249 0.802 -1.861 0.000 MT.P 0% 0.0000 4.200 0.774 -1.855 0.000 FPT.P 0% 0.0000 7.151 0.802 -1.861 0.000 Excavator 1 21.45 4.200 1.500 0.000 0.000 Beban Kerja

1 1.000 4.200 1.500 -9.710 0.000

Total Weight=

33.45 LCG=4.200

VCG=1.253 TCG=-0.290

0

FS corr.=0 VCG fluid=1.253

-0.5

-0.25

0

0.25

0.5

0.75

1

1.25

1.5

0 10 20 30 40 50 60 70 80 90

Max GZ = 1.363 m at 21.8 deg.3.1.2.4: Initial GMt GM at 0.0 deg = 4.286 m

Heel to Starboard deg.

GZ    m

Heel to Starboard degrees

0.0 10.0 20.0 30.0 40.0 50.0

Displacement tonne

33.45 33.45 33.45 33.45 33.45 33.45

Page 20: analisa Stabilitas Ponton 8.4m

20

Draft at FP m 0.909 0.904 0.965 1.215 1.560 1.988 Draft at AP m 0.909 0.904 0.965 1.215 1.560 1.988 WL Length m 8.400 8.400 8.400 8.400 8.400 8.400 Immersed Depth m

0.909 1.342 1.796 2.352 2.866 3.270

WL Beam m 6.200 6.117 4.344 2.523 2.324 2.145 Wetted Area m^2 67.419 67.023 78.384 84.329 83.912 84.049 Waterpl. Area m^2

40.320 39.179 22.958 12.896 12.146 12.177

Prismatic Coeff. 0.956 0.956 0.963 0.966 0.968 0.969 Block Coeff. 0.890 0.617 0.758 1.018 0.895 0.789 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

VCB from DWL m

-0.424 -0.489 -0.731 -1.154 -1.577 -1.931

GZ m 0.290 1.025 1.359 1.242 1.004 0.736 LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

TCF to zero pt. m 0.000 0.291 -0.538 -0.989 -0.647 -0.300 Max deck inclination deg

0.0 10.0 20.0 30.0 40.0 50.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0 0.0 0.0

Heel to Starboard degrees

60.0 70.0 80.0 90.0

Displacement tonne

33.45 33.45 33.45 33.45

Draft at FP m 2.597 3.678 6.776 N/A Draft at AP m 2.597 3.678 6.776 N/A WL Length m 8.400 8.400 8.400 8.400 Immersed Depth m

3.683 3.966 4.125 4.160

WL Beam m 1.962 1.773 1.586 1.500 Wetted Area m^2 84.765 85.341 85.455 85.560 Waterpl. Area m^2

13.011 13.021 12.424 12.236

Prismatic Coeff. 0.970 0.971 0.973 0.974 Block Coeff. 0.660 0.614 0.618 0.623 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

VCB from DWL m

-2.205 -2.392 -2.508 -2.549

GZ m 0.446 0.144 -0.163 -0.467

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21

LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

TCF to zero pt. m 0.068 0.358 0.571 0.766 Max deck inclination deg

60.0 70.0 80.0 90.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0

Code Criteria Value Units Actual Status A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 30

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

30.0 deg 30.0

angle of vanishing stability

74.7 deg

shall not be less than (>=)

3.151 m.deg 32.352 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 40

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first downfloodin

n/a deg

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22

g angle angle of

vanishing stability

74.7 deg

shall not be less than (>=)

5.157 m.deg 43.610 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 30 to 40

Pass

from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first downflooding angle

n/a deg

angle of vanishing stability

74.7 deg

shall not be less than (>=)

1.719 m.deg 11.258 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.2: Max GZ at 30 or greater

Pass

in the range from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

180.0 deg 180.0

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23

angle of max. GZ

21.8 deg

shall not be less than (>=)

0.200 m 1.242 Pass

Intermediate values

angle at which this GZ occurs

deg 30.0

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.3: Angle of maximum GZ

Fail

shall not be less than (>=)

25.0 deg 21.8 Fail

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.4: Initial GMt

Pass

spec. heel angle

0.0 deg

shall not be less than (>=)

0.150 m 4.286 Pass

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24

Stability Calculation - FINISH PLAN_PONTON PU_8_hydrostatic tables Loadcase - FINISH PLAN_loadcase_max. depth cut_8.4m.htk Damage Case - Intact Free to Trim Relative Density (specific gravity) = 1.025; (Density = 1.0252 tonne/m^3) Fluid analysis method: Use corrected VCG Item Name

Quantity Weight tonne

Long.Arm m

Vert.Arm m Trans.Arm m

FS Mom.

tonne.m Lightship 1 11.00 4.200 0.750 0.000 0.000 APT.S 0% 0.0000 1.249 0.802 1.861 0.000 MT.S 0% 0.0000 4.200 0.774 1.855 0.000 FPT.S 0% 0.0000 7.151 0.802 1.861 0.000 APT.P 0% 0.0000 1.249 0.802 -1.861 0.000 MT.P 0% 0.0000 4.200 0.774 -1.855 0.000 FPT.P 0% 0.0000 7.151 0.802 -1.861 0.000 Excavator 1 21.45 4.200 1.500 0.000 0.000 Beban Kerja

1 1.000 4.200 -5.140 -4.855 0.000

Total Weight=

33.45 LCG=4.200

VCG=1.055 TCG=-0.145

0

FS corr.=0 VCG fluid=1.055

-0.5

-0.25

0

0.25

0.5

0.75

1

1.25

1.5

0 10 20 30 40 50 60 70 80 90

Max GZ = 1.303 m at 22.7 deg.3.1.2.4: Initial GMt GM at 0.0 deg = 4.485 m

Heel to Starboard deg.

GZ    m

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Heel to Starboard degrees

0.0 10.0 20.0 30.0 40.0 50.0

Displacement tonne

33.45 33.45 33.45 33.45 33.45 33.45

Draft at FP m 0.909 0.904 0.965 1.215 1.560 1.988 Draft at AP m 0.909 0.904 0.965 1.215 1.560 1.988 WL Length m 8.400 8.400 8.400 8.400 8.400 8.400 Immersed Depth m

0.909 1.342 1.796 2.352 2.866 3.270

WL Beam m 6.200 6.117 4.344 2.523 2.324 2.145 Wetted Area m^2 67.419 67.023 78.384 84.329 83.912 84.049 Waterpl. Area m^2

40.320 39.179 22.958 12.896 12.146 12.177

Prismatic Coeff. 0.956 0.956 0.963 0.966 0.968 0.969 Block Coeff. 0.890 0.617 0.758 1.018 0.895 0.789 LCB from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

VCB from DWL m

-0.424 -0.489 -0.731 -1.154 -1.577 -1.931

GZ m 0.145 0.917 1.290 1.215 1.021 0.794 LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000 0.000 0.000

TCF to zero pt. m 0.000 0.291 -0.538 -0.989 -0.647 -0.300 Max deck inclination deg

0.0 10.0 20.0 30.0 40.0 50.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0 0.0 0.0

Heel to Starboard degrees

60.0 70.0 80.0 90.0

Displacement tonne

33.45 33.45 33.45 33.45

Draft at FP m 2.597 3.678 6.776 N/A Draft at AP m 2.597 3.678 6.776 N/A WL Length m 8.400 8.400 8.400 8.400 Immersed Depth m

3.683 3.966 4.125 4.160

WL Beam m 1.962 1.773 1.586 1.500 Wetted Area m^2 84.765 85.341 85.455 85.560 Waterpl. Area m^2

13.011 13.021 12.424 12.236

Prismatic Coeff. 0.970 0.971 0.973 0.974 Block Coeff. 0.660 0.614 0.618 0.623 LCB from Amidsh. (+ve

0.000 0.000 0.000 0.000

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26

fwd) m VCB from DWL m

-2.205 -2.392 -2.508 -2.549

GZ m 0.545 0.281 0.007 -0.269 LCF from Amidsh. (+ve fwd) m

0.000 0.000 0.000 0.000

TCF to zero pt. m 0.068 0.358 0.571 0.766 Max deck inclination deg

60.0 70.0 80.0 90.0

Trim angle (+ve by stern) deg

0.0 0.0 0.0 0.0

Code Criteria Value Units Actual Status A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 30

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

spec. heel angle

30.0 deg 30.0

angle of vanishing stability

80.2 deg

shall not be less than (>=)

3.151 m.deg 29.719 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 0 to 40

Pass

from the greater of

spec. heel angle

0.0 deg 0.0

to the lesser of

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27

spec. heel angle

40.0 deg 40.0

first downflooding angle

n/a deg

angle of vanishing stability

80.2 deg

shall not be less than (>=)

5.157 m.deg 40.927 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.1: Area 30 to 40

Pass

from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser of

spec. heel angle

40.0 deg 40.0

first downflooding angle

n/a deg

angle of vanishing stability

80.2 deg

shall not be less than (>=)

1.719 m.deg 11.208 Pass

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.2: Max GZ at 30 or greater

Pass

in the range from the greater of

spec. heel angle

30.0 deg 30.0

to the lesser

Page 28: analisa Stabilitas Ponton 8.4m

28

of spec. heel

angle 180.0 deg 180.0

angle of max. GZ

22.7 deg

shall not be less than (>=)

0.200 m 1.215 Pass

Intermediate values

angle at which this GZ occurs

deg 30.0

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.3: Angle of maximum GZ

Fail

shall not be less than (>=)

25.0 deg 22.7 Fail

A.749(18) Ch3 - Design criteria applicable to all ships

3.1.2.4: Initial GMt

Pass

spec. heel angle

0.0 deg

shall not be less than (>=)

0.150 m 4.485 Pass

Page 29: analisa Stabilitas Ponton 8.4m

29

LAMPIRAN

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30

REACH EXCAVATOR WORKING

RANGES

Reach Excavator Working Ranges Reach (R) boom configuration

!

2

3

1 7 6

! !

!

!!

!

!

!

4

5 !

!

! !

!

Boom Options Reach 5.68 m (18'7")

Stick Options R2.9B1 m (9'7") 1 Maximum Digging Depth 6580 mm (21'7") 2 Maximum Reach at Ground Level 9710 mm (31'10") 3 Maximum Cutting Height 9360 mm (30'9") 4 Maximum Loading Height 6640 mm (21'9") 5 Minimum Loading Height 2310 mm (7'7") 6 Maximum Depth Cut for 2440 m (8') Level Bottom 6400 mm (21'0") 7 Maximum Vertical Wall Digging Depth 5800 mm (19'0")

Bucket Digging Force (SAE) 137.5 kN (30,910 lb) (ISO) 155.6 kN (34,980 lb)

Stick Digging Force (SAE) 105.6 kN (23,740 lb) (ISO) 109.9 kN (24,710 lb)

All measurements are approximate

320D Hydraulic Excavator specifications 15

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31

EXCAVATOR WORKING RANGES MAXIMUM DEPTH CUTTING

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32

EXCAVATOR WORKING RANGES MAXIMUM LOADING HEIGH

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33

EXCAVATOR WORKING RANGES MAXIMUM REACH