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Full-Text Articles in Ocean Engineering
Opportunistic Maintenance Strategy Of A Heave Compensation System For Expected Performance Degradation, Chao Zhang, Yujie Qian, Hongyan Dui, Shaoping Wang, Rentong Chen, Mileta M. Tomovic
Opportunistic Maintenance Strategy Of A Heave Compensation System For Expected Performance Degradation, Chao Zhang, Yujie Qian, Hongyan Dui, Shaoping Wang, Rentong Chen, Mileta M. Tomovic
Engineering Technology Faculty Publications
In the marine industry, heave compensation systems are applied to marine equipment to compensate for the adverse effects of waves and the hydraulic system is usually used as the power system of heave compensation systems. This article introduces importance theory to the opportunistic maintenance (OM) strategy to provide guidance for the maintenance of heave compensation systems. The working principle of a semi-active heave compensation system and the specific working states of its hydraulic components are also first explained. Opportunistic maintenance is applied to the semi-active heave compensation system. Moreover, the joint integrated importance measure (JIIM) between different components at different …
Effect Of Seawater Ageing On Fracture Toughness Of Stitched Glass Fiber/Epoxy Laminates For Marine Applications, Atizaz Hassan, Rafiullah Khan, Numan Khan, Muhammad Aamir, Danil Y. Pimenov, Khaled Giasin
Effect Of Seawater Ageing On Fracture Toughness Of Stitched Glass Fiber/Epoxy Laminates For Marine Applications, Atizaz Hassan, Rafiullah Khan, Numan Khan, Muhammad Aamir, Danil Y. Pimenov, Khaled Giasin
Research outputs 2014 to 2021
Composite materials are used in various industries such as marine, aircraft, automotive, etc. In marine applications, composites are exposed to seawater, which can affect their mechanical properties due to moisture absorption. This work focuses on the durability of composite materials under the short-term effect of seawater ageing. The specimens were prepared from glass fiber/epoxy using a hand lap-up method and stitched in the z-direction with Kevlar fiber. The specimens were submerged in seawater for 24 and 35 days. A significant decrease in maximum load was found as specimen immersion time in seawater increased. The seawater ageing also affected fracture toughness …