tailieunhanh - Ship structural design

Nó sẽ cung cấp một nguồn tài nguyên vô giá để thực hành các kỹ sư hàng hải và ra nước ngoài làm việc trong lĩnh vực dầu khí cũng như những nghiên cứu thiết kế kết cấu biển. Phạm vi bảo hiểm tiêu chuẩn mệt mỏi và gãy xương tạo thành một cơ sở hạn nhà nước thiết kế và đánh giá lại cấu trúc hiện có và hỗ trợ việc xác định các yêu cầu về vật liệu và kiểm tra. Ứng dụng mô tả đánh giá rủi ro cho các ngành công nghiệp biển và ngoài khơi,. | f Alexandria University Faculty of Engineering Department of Naval Architecture Marine Engineering Ship Structural Design-1 4 2 50 100 2 MR5-311 Instructor Dr. Khaled I. Atua Sat. 10 30 Wed. 8 30 7. Hull girder loads and response. 2. Statistical representation of wave loads. 3. Geometric characteristics of ship hull sections. 4. Hull girder shear and bending stresses. 5. Failure theories. 6. Classification society s rule strength requirements. 7. Computer applications to ship structural design. 1 1- Hull Girder Loads and Responses LOADS ON SHIPS Classifying the loads 1. Level of structure at which they act hull girder - hull module - principal member - local Member LOCAL Figure Levels of structural analysis. 2. How they vary with time Static -slowly varying - rapidly varying. Static or essentially static loads 1. Ail of the Stillwater loads external and internal pressures buoyancy and bulk cargo all weights. 2. Dry docking loads. 3. Thermal loads Slowly varying loads 1. The wave-induced dynamic pressure distribution on the hull due to the combination of wave encounter and the resulting ship motion. 2. Sloshing of liquid cargoes. 3. Shipping of green seas on deck. 4. Wave slap on sides and on foredecks. 5. Inertia loads especially on masts and other elongated structures and also on decks and frames at the attachment points for containers and other heavy objects. 6. Launching and berthing loads. 7. Ice-breaking loads at the hull girder level . Rapidly varying loads 1. Slamming. 2. Forced mechanical vibration pressure pulses from the propeller. 3. Other dynamic loads as discussed later. Slowly Varying Loads Wave induced dynamic pressure the effect is the wave-induced hull ghder bending moment MW. In the static hull module analysis these wave induced hull gừder stresses together with the still water hull girder stresses constitute the loads at the ends of the module. Of the other slowly varying loads which were listed previously loads 2 through 5 should also .