2D Simulation of inland vessel manoeuvrings

Transcription

1 D Simulation of inland vessel manoeuvrings B: Budapest Universit of Technolog and Economics Department t of faircraft and Ships Hadházi D., Hargitai L. Cs., Simongáti G. 1

2 D Simulation of inland vessel manoeuvrings Contents 1. Objective. Methodolog 3. Selection of test ship 4. Motion equations 5. Environmental conditions 6. Program structure 7. Validation 8. The simulation program 9. Summar Hadházi D., Hargitai L. Cs., Simongáti G.

3 D Simulation of inland vessel manoeuvrings 1. Objective Research on the navigabilit of newl-designed basin of Baja International Port The problem: Main stream seems to be too close to the basin opening Hadházi D., Hargitai L. Cs., Simongáti G. 3

4 D Simulation of inland vessel manoeuvrings. Metodolog Research possibilities: Model testing Ship and river test together Ship and river test separatel D Computer simulation Hadházi D., Hargitai L. Cs., Simongáti G. 4

5 D Simulation of inland vessel manoeuvrings General Inspectorate of Transport: representative ship with a minimum dimensions of Length: 110m Breadth: 11.4m Draft:.5m 3. Selection of test ship No available detailed design documentation for such a vessel Theoretical test t vessel design Hadházi D., Hargitai L. Cs., Simongáti G. 5

6 D Simulation of inland vessel manoeuvrings 3. Selection of test ship Main dimensions of the accredited, fictive self propelled single screw vessel: Length between perpendiculars: 110,00 m Breadth: 11,4 m Depth:,90 m Max. draft:,50 m Min. draft: 080 0,80 m Displacement b,50 m draft: 853 t Displacement b 0,80 m draft: 847 t Dead weight capacit: 1800 t Main engine: MTU 1 V 4000 M60 power: 130 kw nominal speed: /min Rudder: three blade Jenckel rudder + bow thruster Hadházi D., Hargitai L. Cs., Simongáti G. 6

7 D Simulation of inland vessel manoeuvrings 4. Motion equations Simplification b inland vessels: No pitch No dipping No heeling Motion equations: dvx m m zv dt dv m m zv dt d z z M z dt x F F x dvx d m m v T K x Rx W dt dt dv d m m vx K R W K dt dt d z K k R r W w K dt x OS OS l OS Hadházi D., Hargitai L. Cs., Simongáti G. 7

8 D Simulation of inland vessel manoeuvrings 4. Motion equations Forces acting on the ship: T c K K W W R R x x x * T c c c c Kx víz 1 wv 0,7D n D víz 1 wv 1 A víz D 1 wv víz K 1 Szx Sz Rt 1 t víz levegő c levegő Lwl lat 0 v v v szél szél A w v A szélx szél 1 víz 4 4 T T D 1 wv 4 d x x g Alat x dx dt A korm korm Hadházi D., Hargitai L. Cs., Simongáti G. 8

9 D Simulation of inland vessel manoeuvrings 5. Environmental conditions Wind as wind force on ship, see before Stream of Danube as stream data net (v x, v, depth) Department of Hdraulic and Water Resources Engineering Water depth Flow speed Hadházi D., Hargitai L. Cs., Simongáti G. 9

10 D Simulation of inland vessel manoeuvrings 6. Program structure Flow chart of the program: Start (position & direction) Documentation (damage cause, route) Control (rudder angle, engine charging) Numeric equation solver Visualisatio n Damage? n Ship data (forces) Conditions (nautical, hdro-met.) n Arrival? Documentation (route) Hadházi D., Hargitai L. Cs., Simongáti G. 10

11 7. Validation D Simulation of inland vessel manoeuvrings b zig-zag test results b nautical experts and captains Ship Rudder Course Max.turning Overshoot Course max. speed angle angle speed angle side distance [km/h] [ ] [ ] [ /min] [ ] [m] Same length caravan test results D ship model Hadházi D., Hargitai L. Cs., Simongáti G. 11

12 D Simulation of inland vessel manoeuvrings 8. The simulation program Loading of data for wind, water level, and ship s load cases Hadházi D., Hargitai L. Cs., Simongáti G. 1

13 D Simulation of inland vessel manoeuvrings 8. The simulation program Starting gposition Controll of the ship Hadházi D., Hargitai L. Cs., Simongáti G. 13

14 D Simulation of inland vessel manoeuvrings 8. The simulation program Collision with the bridge Hadházi D., Hargitai L. Cs., Simongáti G. 14

15 D Simulation of inland vessel manoeuvrings 8. The simulation program Grounding Hadházi D., Hargitai L. Cs., Simongáti G. 15

16 D Simulation of inland vessel manoeuvrings 9. Summar Application of the simulation program: The new Baja port navigabilit can be examined b different port arrangements The program can be applied for different ships and nautical environments Accident simulation up to the collision Crew training Different navigation situation stud Hadházi D., Hargitai L. Cs., Simongáti G. 16

17 D Simulation of inland vessel manoeuvrings Thank You for Your Attention Dániel HADHÁZI, Csaba L. HARGITAI, Gőző SIMONGÁTI Budapest Universit of Technolog and Economics, Department t of faircraft and Ships, H-1111, Budapest, Stoczek u. 6. Phone: (36-1) Fax: (36-1) hadhazi@rht.bme.hu hargitai@rht.bme.hu gozo@rht.bme.hu Hadházi D., Hargitai L. Cs., Simongáti G. 17