VI Semester NAVAL ARCHITECTURE

Transcription

1 VI Semester NAVAL ARCHITECTURE Total No. of hours / week = 6 Total No. of weeks / Semester = 16 Total No. of hours / Semester = 96 Objectives : * The course contents have been framed to enable the students to possess knowledge of the general aspects of ship geometry, stability and numerical methods of calculating various ship s form, hydrostatic aspects, strength aspects, longitudinal stability and trim. Scheme of Instruction and Examination: Subject Instruction Examination NAVAL ARCHITECTURE Topics and Allocation Hours / Week Hours / Semester 6 96 Internal Assessment Marks Board Exam UNIT TOPIC TIME ( Hours) I Hydrostatic Calculations 18 II Geometry of Ships, Centre of Gravity 18 III Transverse Stability 16 IV Strength of Ships 16 V Longitudinal Stability and Trim 16 Revision, Test 12 Total 96 Total Detailed Syllabus UNIT I HYDROSTATIC CALCULATIONS Definitions: Water-plane Area, Displacement Light displacement; Load displacement, Tonnes Per Centimetre Immersion, Derivation of TPC immersion of a vessel in Sea-water and Fresh water. Centre of flotation, Centre of buoyancy, Appendages, reserve buoyancy Some useful Tools: Simpson s first, second, third Rules and Three Ten Minus One Moment Rule. Trapezoidal Rule, Tchebycheff s Rule Applications: Applications of Simpson s Rule: Calculation of Water-plane Area, TPC in sea-water and fresh water, Centroid of water-plane area LCF, Light displacement and Load displacement, L.C.B., K.B. Moment of Inertia of water-planes and transverse sections of ships. Bulk Heads calculation of area, liquid pressure and center of pressure. Application of Trapezoidal Rule: calculation of water - plane area.

2 Application of Tchebycheff s Rule: calculation of water - plane area. UNIT II 2.1. GEOMETRY OF SHIPS Co-efficients of form Wetted surface area. Calculation of wetted surface area using Body Plan and calculation of quantity of steel for fabrication and construction of ships. Taylor s formula and Denny s formula Similar Figures / Ships CENTRE OF GRAVITY Position of center of gravity V.C.G.; L.C.G., Shift in center of gravity of a vessel due to, ( a ) addition or loading of masses, ( b ) removing or discharging masses, ( c ) shifting or movement of masses, and ( d ) suspended mass Final K.G. Problems on LCG, shift in Centre of Gravity and final KG. UNIT III TRANSEVERSE STABILITY Definitions: Heel, List, Meta-centre, Meta-centric height, Intact stability, Stiff and Tender ships, Angle of Loll Statical stability at small angles of heel, Righting Lever, Righting Moment, Moments of statical stability, derivation of KB, BM and KM for vessels of simple configurations (boxshaped barges and vessels of triangular prisms only). Derivation of minimum K.M. and the draught at which it occurs for box-shaped barges only. Calculation of K.B., B.M., K.M., K.G., and G.M., for vessels of simple configurations (boxshaped barges and vessels of triangular prisms only.) Inclining Experiment, Calculation of initial meta-centric height, Curves of statical stability Effects of free surface of liquids on stability Calculating the effect of free surface of liquids, Stability at large angles of heel, Stability of a wall-sided ship, Dynamical stability. UNIT IV STRENGTH OF SHIPS 4.1. Trochoidal waves, Relationship between line of orbit centres and the undisturbed surface Longitudinal Stresses in Still Water, Longitudinal Stresses in Waves, Buoyancy Curves, Curves of load, curves of buoyancy and weight, Curves of Shear Forces and Bending Moment, Standard Conditions Sagging and Hogging. Calculation of hull girder section modulus and stresses induced on deck and heel check on mid-ship section modulus. Problems on vessels of simple configurations. ( Box Shaped )

3 UNIT V LONGITUDINAL STABILITY and TRIM 5.1. Definitions: Longitudinal B.M., Longitudinal G.M., Longitudinal Meta-centric Height, TRIM, Moment to change trim 1 cm ( MCT 1 cm ), Change of trim, Bilging, Permeability, True mean draught Derivations: Total TRIM change, MCT 1 cm, Change in mean draught due to change in density, Fresh Water Allowance, Docking Stability, Loss of stability due to grounding Applications: Change of L.C.B., with change of trim, Change of trim due to adding and /or removing masses, bilging and permeability. Change in draughts due to: ( a ) bilging mid-ship compartment, and ( b ) bilging an end compartment.

4 Marine Auxiliary Machinery Total No. of hours / week = 6 Total No. of weeks / Semester = 16 Total No. of hours / Semester = 96 Objectives : Scheme of Instruction and Examination: Subject Instruction Examination Marine Auxiliary Machinery Topics and Allocation Hours / Week Hours / Semester 6 96 Internal Assessment Marks Board Exam UNIT TOPIC TIME ( Hours) I Evaporators, Pollution Preventions & Deck Machinery 18 II Blowers and Compressors, Steering Gears, Dry Docking and other Ship Board Equipments 18 III Ship Board Equipments & Pumps 16 IV Marine Refrigeration, Ventilation and A.C.Plants 16 V Piping Systems, Noise and Vibrations 16 Revision, Test 12 Total 96 Total

5 Detailed Syllabus UNIT: I EVAPORATORS, POLLUTION PREVENTIONS AND DECK MACHINERY Evaporators: Construction and operation of different types of evaporators fresh water generators and distillers. Pollution prevention oily bilge separators their construction and operation - use of cealescers, prevention of oil pollution and various internal requirements (MARPOL ACT) Deck machinery - type of deck machinery used in ships - e.g. winch and wind lass, their requirements operation and maintenance. UNIT: II BLOWERS AND COMPRESSORS, STEERING GEARS, DRY DOCKING AND OTHER SHIP BOARD EQUIPMENTS Construction and operation of Blowers and compressors used on board ships - uses of compressed air - steering gears - Construction and operation of various types of steering machinery. Telemeter systems - transmitters and receivers, variable delivery pumps used in steering gears axial and radial displacement types. Hunting action of steering gear. Emergency steering arrangement. Dry docking methods of dry docking of ships - Inspection and routine overhauling of under water fittings and hull.. Removal and fitting of propellers. UNIT: III SHIP BOARD EQUIPMENTS, PUMPS Ship board equipments - Incinerators, sewage, treatment plant - Engine room crane, chain blocks tackles, Anchor tackles, Anchor chain its testing and survey requirements. Different types of ship stabilizer - Bow thrusters hull protection arrangements. Different types of bearings used for marine machineries. Various Pumps used in ships-types of pumps in general-ballast pumps bilge pumps cargo pumps condensate pumps -condensor circulating pumps drain pumps -feed pumpsliquid ring pump-primary coolant pumps rotary pumps -gear pumps lobe pumps screw pumps UNIT IV: MARINE REFRIGERATION, VENTILATION AND A.C.PLANTS Design and constructional details of various equipment for refrigeration and Air conditioning. Refrigerants used in marinepractice and their justification. Control of temperature in various rooms in Cargo or domestic plants, Ventilation necessity Marine Ventilation- - International requirements of ventilation-air conditioning-introduction-operation and maintenance of equipments- control in Humidity in AC plants, operation and maintenance of plants - control and safety equipment. UNIT V: PIPING SYSTEMS - NOISE AND VIBRATIONS Piping Systems-Ballast systems-bilge systems brine cooling systems -cargo oil systems condensate systems drain systems firemain systems - fresh water systems fuel oil systems hot water systems - lubricating oil systems main feed systems main steam systems overflow systems refrigeration piping systems sea water systems - steam heating systems - vents Vibration and Noise -Elements of aerodynamics and hydrodynamic sound, Noise source on ships and noise suppression techniques - Noise level measurement - various modes of vibration in a ship (i.e. free, forced, Damped, transverse, longitudinal, torsional ) - their sources and effect Resonance and critical speed, structure borne and air borne, vibration, antivibration mountings of machineries, detuners, dampers with reference to torsional vibrations dampers, use of Torsiographs.

6 Unit I Emergency First Aid and Fire Fighting Structure and functioning of Human Body Circulatory system (Heart and Blood Vessels) The Respiratory System The Digestive system and abdomen The urinary System The Nervous system Autonomous nervous system Skin The Skeletal System The muscular system Fractures Signs & Symptoms Management Infection using bandages using splints. Unit II Wounds Management External and internal bleeding Signs & symptoms if bleeding bring the side of the wound together and press firmly infection Management Dressings Adhesive Dressings Nom-adhesive Dressings Gauze Dressing Improvised Dressing Application of dressings Burns and Scalds Degree of Burns The estimation of percentage of burns Results of burns Management of minor Burns and scalds Management of serious burns and scalds management of chemical burns Burns of eye Alkali burns Air way Pain Relief Temperature Maintenance Infection Foreign bodies in the eye Treatment Management Pressure Points (Arteries). Unit III Shock Causes Signs and Symptoms Management for shock Diarrhoea vomiting and dehydration Signs and symptoms Unconsciousness Degree of unconsciousness Causes for unconsciousness First aid in unconsciousness Heart Attack Contributing factors Symptoms Signs Complication to be avoided First Aid Strokes Contributing factors Signs and symptoms First Aid. Choking Signs and Symptoms First Aid (Heimlich s manoeuvre) Poisoning Types of Poisons Principles in treating poisoning Important Alcohol Poisoning Acute Alcohol poisoning Complications Prognosis Management. Unit IV Drugs poisoning Barbiturates Management prophylactic Curative Aspiring Poisoning Prognosis Curative Morphine Poisoning Curative foot poisoning Clinical findings complication Recovery is complete Treatment Mouth to mouth type. Artificial respiration important diagnosis Procedure - External Heart Compression Cause for heart attack to stop Diagnosis First Aid Important Cardio-pulmonary resuscitation Place the victim on his back on a hard surface Airway Breathing Circulation - Unit V Chemistry of Fire Fire Triangle Fire Extinguishers The Bureau of Indian Standard Classification Water type extinguishers Chemical foam type Soda Acid Type Extinguishers Dry Power Type Fire Extinguishers Carbon dioxide type Fire Extinguishers Halon type Fire Extinguishers - Fire Extinguishers and personal Safety Fire Detectors Fire man outfit Fire Hydrant Pumps Hoses and nozzle Spray System.

7 Rule of The Road Unit I General Application Responsibility General Definitions Look-out Safe speed Risk of collision Action to avoid collision Narrow channels Traffic separation schemes sailing vessels Overtaking Head-On Situation Crossing Situation Action by give-way vessel Action by stand-on vessel responsibilities between vessels conduct of vessels in restricted visibility Light and shapes Definitions Visibility of Lights Power-driven vessels underway Towing and Pushing Sailing vessels underway and vessels under oars Fishing vessels. Unit II Vessels not under command or restricted in their ability to man-oeuvre Vessels constrained by their draught pilot vessels Anchored vessels and vessels aground Seaplanes Sound and light signals Definitions Equipment for sound signals Manoeuvring and warning signals - sound signals in restricted visibility Signals to attract attention Distress signals Exemptions Positioning and Technical details of lights and shapes Definition Vertical Positioning and spacing of lights Horizontal positioning and spacing of Lights Details of location of direction-indicating lights for vessels, Dredgers and vessels Engaged in underwater operations Screens for sidelights shapes Colour specification of lights intensity of Lights Horizontal sectors Vertical sectors Intensity of Non-electric Lights Manoeuvring light High-speed craft Approval. Unit III Additional signals for fishing vessels fishing in close proximity signals for trawlers Signals for purse seiners Technical details of sound signal alliances whistles Frequencies and range of audibility Limits of fundamental frequencies Sound signal intensity and range of audibility Positioning of whistles Fitting of more than one whistle combined whistle systems Bell or gong intensity of signal Construction Approval Distress signals. Unit IV I.M.O. s Guidance for the uniform application of certain rules of the 1972 collision regulations clarification of the definition vessel constrained by her draught, - Clarification of the application of the word underway, - Clarification of the implication of the words not to impede as appearing Clarification of the relation between Clarification of the transference within a lane Clarification on the use of inshore traffic zones by small vessels clarification of the relation between Basic Principles to be observed in keeping a navigational watch Fitness for duty - Navigation Look-out Navigation with pilot embarked Protection of the marine environment. Unit V International Association of lighthouse authorities maritime buoyage system General principles of the system Lateral Marks Cardinal Marks isolated danger mark safe water marks Special Marks New dangers Maritime buoyge system rules Scope Type of marks Method of characterizing marks Definition of Conventional direction of buoyage - Buoyage Regions - Description of lateral marks used in region.

8 Emergency First Aid Emergency First Aid and Fire Fighting Practical 1. Demonstration and method of the Treatments 2. Fractures 3. Burns and Scalds 4. Dehydration 5. Unconsciousness 6. Heart Attack 7. Strokes 8. Poisoning 9. Cardio Pulmonary Resuscitations Fire Fighting I. Demonstration of Fire Extinguishing Fire in the Fire Demonstration Centre in the Campus. II. Type of Extinguisher Demonstration with Fire man outfit 1. Fire Triangle 2. Fire Extinguishers 3. Water type extinguishers 4. Chemical foam type 5. Soda Acid Type Extinguishers 6. Dry Power Type Fire Extinguishers 7. Carbon dioxide type Fire Extinguishers 8. Fire Detectors 9. Fire man outfit 10. Fire Hydrant 11.Pumps 12. Hoses and nozzle 13. Spray System. 14. Fire Man outfit

9 Handling and Demonstration of 1. Lights and shapes 2. Sound and Light Signals 3. Risk of Collision 4. Action to avoid collision 5. Towing and pushing 6. Positioning and Lights and shapes 7. Buoy-age System 8. Different types of buoyage 9. International Code of Signal 10. Semaphore signal Rule of The Road Practical

10 Marine Auxiliary Machinery Lab Demonstration Handling 1. Winch and wind lass. 2. Oily bilge separators 3. Steering machinery Telemeter System 4. Work of delivery pumps 5. Construction and Demonstration steering emergency 6. Paint & Shipping Corroded 7. Removal and fitting of propellers 8. Dismantling and over hauling of bilge pumps drain pumps -feed pumps-liquid ring pump 9. Installation of piping system ballast system brine cooling system cargo oil system 10. Refrigeration and Air conditioning component-compressors condensers regulating.

11 Project Work All Project Works must be based on Maine oriented programs

12 Sea Based Training (60 Days in vessel Training) In order to make the students of Marine Engineering Programs Seaworthy a special type of in vessel training in the sea is an integral part of this program. Hence a sixty days sea trip in a vessel fitted with Marine Engine (Not Less than 30ft over All length) This Sea going Training is a must on completion of VI Semester Academic Program. (Preferably Training should be between I st June to 31 st July of the following Academic Year. Necessary Documentary evidence must be produced to DTE before the Diploma Issued.