ship structure
Fatigue Strength Analysis of Small Waterplane Area Twin Hull
The fatigue of ship structures is an important problem influencing the safety of ship structures. At present,the main classification societies in the world have issued their own fatigue assessment rules of ship structures as the guidance notes. But the subject of fatigue strength evaluation in the many classification society rules is mainly focus on large [...]
Hot Stress Fatigue Strength Research Based on Common Structural Rules for Bulk Carriers
Ship as complex structure, when used in complex loading environment, we care about not only strength, stiffness and stability , but also the use life in the normal condition ,this use life is called ship fatigue problem. The fatigue of ship structure is process of time. Ship structure fatigue is a process, which means with [...]
Fatigue Strength Assessment Research on CSR and Design Against Fatigue Failure
Common Structural Rules for Bulk Carriers and Oil Tankers (CSR) which was developed by IACS has gone into effect on 1st April 2006 and unified the building standard of Bulk Carriers and Oil Tankers, but on fatigue assessment method there are still some differences between Bulk Carriers and Oil Tankers. The main content in this [...]
The Method Research on Ultimate Strength of Ship Structure Based on IACS Rules
Plates in ship structure due to the support of around frames will not be destroyed immediately after compressive buckling, but still bearing some compressive loads until collapse. The maximum load capacity just before collapse happenes is called ultimate strength. It can make full use of structure post-buckling performance, reflect the true strength margin, and satisfy [...]
Ultimate Strength Analysis of Ship Structure Based on Idealized Structural Unit Method
The ultimate strength of ship structures indicates the limits of ship’s carrying capacity.It has always been widespread concerned in the field of the ship mechanics. Through years of development, there are many theories of hull ultimate strength calculation. Ideal structural unit method (ISUM) is one kind of the theories.Compared to other theories, ISUM has advantages [...]
Design Wave Approach for the Fatigue Assessment of Bulk Carrier Structures
Fatigue damage is one of the main failure modes of ship and marine structures. With the development of technology, fatigue damage problem has become a vital research field in ship building and ocean engineering. Presently, methods for the fatigue assessment proposed by classification society are divided into two parts, one is the simplified method, and [...]
The Study on Modal Parameters Identification for Ship Structures Based on Ambient Excitation
Modal parameters are very important factors on dynamic performance of structures. Whether the modal parameters are proper influences the performance of structures directly. While, the traditional methods of experimental modal test can’t be very satisfactory because of the difficulty in getting the complete information of input and output, and the difficulty in exciting such big [...]
Research on Fatigue Assessment Method of Ship Structures
In recent years, along with the highly developed economy of our country, the international trade and transportation of cargo increase greatly. Ship as the main means of transport have become increasingly onerous in its work At the same time, there appear all kinds of metal problem which can result in vast personnel and economic loss.Among [...]