This paper aims to design a practical adhesive connection structure between the composite deckhouse and the steel main hull, and to evaluate the load-bearing property and failure behavior of local joints under the overall structural loads acting on the deckhouse.

Using the submodeling approach, the local joint region is coupled with the whole deckhouse model, and a parametric analysis is conducted on the adhesive layer through numerical simulations focused on the composite-to-steel slot connection scheme. Subsequently, the mechanical response characteristics of the connection area at the base of the deckhouse under splash loading conditions are evaluated, and a localized destructive test is conducted to investigate the failure modes of a real-size connection specimen.

The calculation results show that under splash-induced loading, the stresses in all parts of the adhesive connection structure remain below the ultimate material strength, maintaining a reasonable safety margin. When the load reaches approximately 3-fold the standard design load, initial damage mainly occurs at the corner of the stiffening beam skin. At around 10-fold the standard design load, the stiffening beam skin fails almost completely. Moreover, the damage features observed in the actual loading tests accord well with the results obtained from the refined local joint model.

This proposed slot adhesive connection structure is reliable and effective in meeting the strength requirements for the connection between the composite deckhouse and the steel main hull, and provides a useful reference for the engineering application of composite superstructures in the shipbuilding industry.

As the core system of an unmanned surface vehicle, the autonomous control system (ACS) is responsible for coordinating other systems to achieve combat missions, which is the key to unmanned surface ship technology.

First, based on the physiological structure and cognitive mechanism of the nervous system, this paper proposes six bionic revelations for the ACS. Furthermore, based on such revelations, a system architecture and its typical ACS case are proposed as the biomimetic of the central and peripheral nervous system. Finally, a design scheme for the ACS architecture that composed of eight functional modules with service-oriented architecture is obtained which draws upon the information processing of the human brain.

The bionic physical architecture and functional architecture is achieved.

This study can provide useful references for the overall construction, system design and equipment development of the ACS for medium to large unmanned surface ships.