Fig.1

Overall schematic diagram of curved beam system

Fig.2

Schematic diagram of end plate structure

Fig.3

Schematic diagram of longitudinal beam structure

Fig.4

Salvage frame of end plate and longitudinal beam

Fig.5

Structure of curved beam

Fig.6

Cutter head for salvage

Fig.7

Installation of cutter head into curved beam

Fig.8

Rear propulsion device

Fig.9

Structure of launcher

Fig.10

Geometric model of longitudinal beam structure

Fig.11

Geometric model of integral structure of longitudinal beam and curved beam

Tab.1

Results of finite element calculation

Fig.12

Load and boundary condition of working condition 5

Fig.13

Cloud diagram of equivalent stress of shell element of working condition 5 (full model result)

Fig.14

Cloud diagram of equivalent stress of shell element of working condition 5 (full model result)

Fig.15

Cloud diagram of total deformation of working condition 5

Fig.16

Cloud diagram of buckling results of working condition 5

Fig.17

Machining of end plate

Fig.18

A pair of curved beams machined on a vertical lathe

Fig.19

Assembly of end plate and longitudinal beam

Fig.20

Testing of launcher and curved beam

Fig.21

Launch of end plate and longitudinal beam composite frame

Fig.22

Installation of curved beam into launcher

Fig.23

Lifting launcher into water

Fig.24

Installation of curved beam (sludge pump for sludge discharge)

Fig.25

Completion of installation of curved beam

Fig.26

Lifting of ancient ship out of water surface

Fig.27

Landing of ancient ship and curved beam system onshore