Need all answers ,JEE 504 – Principles of Naval Architecture – Assignment ...

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Need all answers ,JEE 504 – Principles of Naval Architecture – Assignment  __________________________________________________________________________________  1    JEE 504 PRINCIPLES OF NAVAL ARCHITECTURE    Final Project Date range: 12th May to 06th June 2022  This project forms 50% of the subject’s total marks. This project is in two part (A) and (B).   Student’s report is to be submitted on-line (PDF files)   __________________________________________________________________________________  Part (A): Hydrostatic Analysis (50%)  The offset table of 88.2m bulk carrier is provided, and the main particulars of the ship are as follows:  LWL (St.0-15) 84 m  BWL (Max) 15.27 m  Displacement 4206 t  KB 2.055m  KG 5.88 m  LCG 45.2 m  T 3.91 m 1. Using the offset table and associated data, determine the best estimates for the following hull  form data at the ship’s design draft (3.91m):  BMT,  KMT,  BML,  KML,  LCF,  TPC  and  MCTC 2. Draw a GZ curve using the cross-curve given in the 2nd page of the excel offset table, where  formulas and GZ table is provided. Investigate if the ship stability complies with the “Criteria for  the righting lever curve properties”, sub-section 2.2 of International Code on Intact Stability, 2008  (IS Code). The IS Code is accessible through IMO Codes from Regs4ships website:  (http://dmr.regs4ships.com/australia/)  (continue next page)  __________________________________________________________________________________  http://dmr.regs4ships.com/australia/ JEE 504 – Principles of Naval Architecture – Assignment  __________________________________________________________________________________  2    Interpretations Required of Students:  Provide a concise assessment of the vessel’s probable sensitivities to GZ curve if additional loads are  either loaded to or discharged from the vessel during port operation, based on any of the values you  have determined above. Guidance for Students:    An approach recommended to this part of the project is as follows:   1. Set up a spreadsheet to determine the values required similar to Assignment-1  2. Refer to page two of the excel sheet and read out the GZ values for the given displacement.  3. Correct the extracted GZ value for the given KG since the default value for the GZ table is 6m and  complete the GZ table using two formulas given.  4. Draw the GZ curve and check if it complies with the Righting-Lever criteria given in IS-Code. You  may need to measure the area under the curve using Simpson’s rules.  ________________________________________  Part (B): Structural Analysis (50%) For the midship-frame of the ship given in Part(A), calculate the thickness of plates and section  modulus of the stiffeners, webframes and girders. For these calculations, you can refer to “Steel  vessels under 90m in length” rules accessible from ABS website: https://ww2.eagle.org/en.html  ABS>Rules & Resources>Rules & Guides.  1. Draw a midship frame to include plates, stiffeners, webframes and girders for the bottom  shell, double bottom, side and deck plating. 2. Determine the followings, when the ship is subject to a sagging moment of 80 MNm:  a) the bending stress at the upper deck edge and lower chine when the vessel heels 15°;  b) the angle of heel for which the bending stress is maximum;  c) the maximum bending stress occurring in part (b);  d) the inclination of the neutral axis at the angle of maximum bending stress.  (continue next page)  __________________________________________________________________________________  https://ww2.eagle.org/en.html JEE 504 – Principles of Naval Architecture – Assignment  __________________________________________________________________________________  3    Guidance to Students:   1. Set up a spreadsheet to perform scantling (structural calculation) for the midship frame.  2. Prepare a report for the scantling with reference to the sections and equations from the  rules, which have been extracted.  3. Perform the scantling for bottom, double bottom (inner bottom), side and deck.  4. Specify the thickness and section modulus of the plates, frames (stiffeners), webframes and  girders.  5. Provide a midship frame drawing with sufficient texts and dimensions. You may draw a half  of the midship frame since it would be symmetrical.  6. The following assumptions should be considered:  a) The position of double bottom should be determined by ABS rule.  b) Use Longitudinal frame spacing for the bottom, double bottom, side and deck.  c) The Frame spacing in bottom, side and deck is 600 mm.  d) The Webframe spacing in bottom, side and deck is 2400 mm.  e) The distance of midship frame from the next and previous bulkheads is 4800 mm.  f) Maximum five girders could be set for bottom and deck. Interpretation Required of Students:  Given that the midship-frame being designed is subject to maximum bending stress, what limitations  would you have suggested for the maximum permanent deflection or any other aspect of the  structural design and reasons why? Guidance for Students:   Keep your response(s) to this last part (suggestions on limitations) concise.  No more than half an A4  page is expected, but if students do want to provide more than that, it would be perfectly  acceptable.  ________________________________________ __________________________________________________________________________________    Offset table 		WL0	WL1	WL2	WL3	WL4	WL5	WL6	WL7	WL8	WL9	WL10	WL11	WL12	WL13	WL14	WL15	WL16	WL17	WL18	WL19	WL20	WL21	WL22	WL23	WL24	WL25 	Stations	0.000	0.003	0.006	0.009	0.012	0.015	0.018	0.021	0.024	0.027	0.031	0.034	0.037	0.040	0.043	0.046	0.049	0.052	0.055	0.058	0.061	0.067	0.073	0.079	0.085	0.092 	0 (AP)	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.021	0.042	0.053	0.059	0.067	0.070	0.072	0.073	0.073		LWL (St.0-15)	84 m 	0.5	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.000	0.003	0.023	0.045	0.058	0.066	0.071	0.075	0.078	0.081	0.083	0.084	0.084	0.084		BWL (Max)	15.27 m 	1.0	0.001	0.005	0.006	0.008	0.009	0.009	0.010	0.011	0.012	0.013	0.017	0.026	0.042	0.056	0.066	0.073	0.078	0.081	0.084	0.085	0.087	0.088	0.089	0.089	0.089	0.089		Displacement	4206 t 	1.5	0.004	0.011	0.015	0.017	0.020	0.022	0.025	0.029	0.034	0.042	0.053	0.063	0.071	0.077	0.081	0.084	0.086	0.088	0.089	0.090	0.090	0.091	0.091	0.091	0.091	0.091		KB	2.055 m 	2.0	0.007	0.019	0.024	0.029	0.034	0.040	0.045	0.052	0.059	0.067	0.073	0.079	0.082	0.086	0.088	0.089	0.090	0.091	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092		KG	5.88 m 	3.0	0.015	0.035	0.047	0.058	0.066	0.073	0.077	0.081	0.084	0.086	0.088	0.089	0.090	0.091	0.091	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092		LCG	45.2 m 	4.0	0.023	0.058	0.074	0.080	0.084	0.087	0.088	0.089	0.090	0.091	0.091	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092		T	3.91 m 	5.0	0.035	0.082	0.087	0.089	0.090	0.091	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	6.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	7.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	8.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	9.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	10.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	11.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	12.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	13.0	0.080	0.087	0.090	0.091	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092	0.092 	13.5	0.051	0.072	0.078	0.081	0.082	0.084	0.084	0.085	0.086	0.086	0.086	0.086	0.087	0.087	0.087	0.087	0.088	0.088	0.088	0.088	0.088	0.089	0.089	0.089	0.090	0.090 	14.0	0.032	0.050	0.056	0.061	0.065	0.067	0.069	0.070	0.072	0.073	0.073	0.074	0.075	0.075	0.076	0.077	0.077	0.077	0.078	0.078	0.079	0.079	0.080	0.081	0.081	0.082 	14.5	0.011	0.028	0.034	0.038	0.042	0.045	0.047	0.048	0.050	0.051	0.052	0.053	0.054	0.055	0.056	0.057	0.058	0.058	0.059	0.060	0.060	0.062	0.063	0.064	0.065	0.066 	15 (FP)	0.000	0.000	0.005	0.009	0.012	0.014	0.016	0.018	0.019	0.020	0.021	0.021	0.022	0.023	0.023	0.024	0.025	0.025	0.026	0.026	0.027	0.028	0.029	0.031	0.033	0.036 	Note: 		The above set of data is an offset table of a model ship. 		In order to convert it to a ship scale, you need to calculate the svcale factor by dividing the half of the ship's beam (15.27/2) by the half of the model's beam (0.092). 		This scale factor (83) should be multiplied to the above offset table to get the shi's offset table.  		Foe the sake of simplification, the forward part of the ship is excluded from the offset table where there are more complications.  Cross Curve 																			Roll Angle (Deg.)	Tabulated GZ [m]	Corrections	Corrected GZ [m] Righting Lever Diagram Righting Lever	 Heel Angle [Deg] GZ [m] Cross Curves 15 Deg.	161.874	439.09300000000002	735.94200000000001	1044.3440000000001	1359.944	1681.2650000000001	2007.461	2338.6	2674.8539999999998	3016.49	3363.9229999999998	3716.422	4074.3040000000001	4438.42	4808.152	5182.8729999999996	5562.21	5.7119999999999997	4.8559999999999999	4.2359999999999998	3.762	3.375	3.0449999999999999	2.7559999999999998	2.5230000000000001	2.343	2.1989999999999998	2.093	2.0089999999999999	1.9410000000000001	1.889	1.847	1.8149999999999999	1.7909999999999999	30 Deg.	161.874	439.09300000000002	735.94200000000001	1044.3440000000001	1359.944	1681.2650000000001	2007.461	2338.6	2674.8539999999998	3016.49	3363.9229999999998	3716.422	4074.3040000000001	4438.42	4808.152	5182.8729999999996	5562.21	5.8879999999999999	5.5330000000000004	5.2629999999999999	5.0339999999999998	4.8280000000000003	4.6630000000000003	4.5140000000000002	4.3879999999999999	4.274	4.17	4.0739999999999998	3.9830000000000001	3.8820000000000001	3.766	3.6379999999999999	3.504	3.3660000000000001	45 Deg.	161.874	439.09300000000002	735.94200000000001	1044.3440000000001	1359.944	1681.2650000000001	2007.461	2338.6	2674.8539999999998	3016.49	3363.9229999999998	3716.422	4074.3040000000001	4438.42	4808.152	5182.8729999999996	5562.21	5.4029999999999996	5.4130000000000003	5.4169999999999998	5.4160000000000004	5.4109999999999996	5.4059999999999997	5.3949999999999996	5.359	5.2910000000000004	5.1980000000000004	5.0880000000000001	4.9660000000000002	4.835	4.6959999999999997	4.5490000000000004	4.3959999999999999	4.2350000000000003	60 Deg.	161.874	439.09300000000002	735.94200000000001	1044.3440000000001	1359.944	1681.2650000000001	2007.461	2338.6	2674.8539999999998	3016.49	3363.9229999999998	3716.422	4074.3040000000001	4438.42	4808.152	5182.8729999999996	5562.21	4.55	4.9160000000000004	5.1820000000000004	5.3940000000000001	5.5209999999999999	5.5570000000000004	5.5389999999999997	5.4889999999999999	5.4160000000000004	5.3289999999999997	5.2320000000000002	5.1260000000000003	5.0140000000000002	4.899	4.782	4.6630000000000003	4.5410000000000004	75 Deg.	161.874	439.09300000000002	735.94200000000001	1044.3440000000001	1359.944	1681.2650000000001	2007.461	2338.6	2674.8539999999998	3016.49	3363.9229999999998	3716.422	4074.3040000000001	4438.42	4808.152	5182.8729999999996	5562.21	3.645	4.4459999999999997	4.843	4.9889999999999999	5.0380000000000003	5.0430000000000001	5.0220000000000002	4.9870000000000001	4.9429999999999996	4.891	4.835	4.7750000000000004	4.7119999999999997	4.6459999999999999	4.577	4.5090000000000003	4.4429999999999996	90 Deg.	161.874	439.09300000000002	735.94200000000001	1044.3440000000001	1359.944	1681.2650000000001	2007.461	2338.6	2674.8539999999998	3016.49	3363.9229999999998	3716.422	4074.3040000000001	4438.42	4808.152	5182.8729999999996	5562.21	4.2590000000000003	4.1580000000000004	4.117	4.0949999999999998	4.0830000000000002	4.0739999999999998	4.0670000000000002	4.0609999999999999	4.056	4.0510000000000002	4.0460000000000003	4.0410000000000004	4.0359999999999996	4.03	4.024	4.0179999999999998	4.0119999999999996	Displacement in tonnes GZ righting lever in m   Hydrolysis Analysis    Part a  1.   a. BMT = Transverse metacentric radius measured from center of buoyancy  BMT = Transverse Moment of inertia/Volume immersed in the water  Length of the ship (L)  = 84 m  Breadth(B) = 15.27 m  Transverse Moment of inertia = L * B*B*B/12  Transverse Moment of inertia = 84 * 15.27*15.27*15.27/12 = 24923.85 m4  Density of water = 1t/m3  Displacement = 4206 t

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