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TRIM

d. TRIM. Definisi: adalah perbedaan antara sarat depan (haluan) dan sarat belakang (buritan). W. W. w. W. Next. W. Trimming moment. W. Kapal duduk rata (even keel) Beban ‘w’ bergeser ke w 1 dengan jarak d Memen yang timbul adalah w x d Titik berat baji berpindah dari g ke g’

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TRIM

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  1. d TRIM • Definisi: adalah perbedaan antara sarat depan (haluan) dan sarat belakang (buritan) W W w W Next W Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar

  2. Trimming moment W • Kapal duduk rata (even keel) • Beban ‘w’ bergeser ke w1 dengan jarak d • Memen yang timbul adalah w x d • Titik berat baji berpindah dari g ke g’ • Sedangakan GG1 x W = w x d • Maka GG1 = (w x d)/W ML d G1 G g’ g F B B1 w w Next Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar W

  3. Center of Floatation (c.o.f) W • Disebut juga ‘tipping-center’, yaitu titik dimana kapal berputar secara membujur (trimming)  titik F • c.o.f tidak selalu di tengah-tengah membujur kapal (amidship) • c.o.f dihitung dari AP, FP, atau CL • ML adalah perpotongan antara BM dan B1M secara membujur  BML = IL/V • Bidan air bentuk kotak IL = (BL3)/12 • Kapal dengan bidang air berbentuk kotak  BML = BL3/12V ML Penjelasan, klik disini d G1 G g’ g F B B1 w w Next Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar W

  4. Penjelasan tentang BML • Kapal bentuk kotak: BML = IL/V = (BL3)/(12V) = (BL3)/(12 x L x B x d) = L2/12d • Kapal bentuk prisma: BML = IL/V = (BL3)/(12x1/2xLxBxd) = L2/6d • Pada stabilitas membujur BG terlalu kecil dibandingkan dengan BML atau GML. Oleh karena itu dalam menghitung MCTC, BML dapat diganti dengan GML Return Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar

  5. Moment to Change Trim per Cm (MCTC) • GG1 = (w x d)/W = GML x Tgn.  Tgn. = t/L • Bila t = 1 cm  Tgn. = 1/100.L • Untuk merobah trim 1 cm  w x d = MCT 1 cm = MCTC = (W x GML x 1/100.L) atau (W x GML)/100.L W ML  ℓ t = 1 cm w w F L1 W1 L G G1 B B1 Next  W Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar

  6. Next Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar

  7. Next Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar

  8. Next Created by: Capt. Hadi Supriyono, Sp.1, MM Dedicated to: PIP Makassar

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