Large-tonnage Salvage Chain Simultaneously Enhancing Platform

In this paper, through the improvement of the existing lifting systems, the actuators of chain synchronous lifting system which have a passive heave compensation system h ave been designed. The system compensate for the heave motion of the vessel through t he waves and ship motion prediction control, so the barge remains relatively static state or make its heave motion greatly reduced at high sea conditions, to meet the wreck salva ge requirements under different sea conditions.At first,design a chain enhance the level of the implementing mechanism with heav e compensation equipment. The mechanism can overcome the low efficiency with low 1 ifting speed of ordinary cable and big cost of reconstruction of barge.It can also achieve a smooth lifting under adverse sea conditions to insure the safety and efficiency during t he lifting process.Secondly, in order to verify the safety and reliability of the design, we need get the wreck lifting force to do strength check.In this thesis,we use ADAMS to do dynamic si mulation analysis for wreck model and get lifting forces at different sea conditions. By a nalyzing the ADAMS simulation results, find the greatest shipwreck different sea condit ions heave lifting force.Then using ANSYS and ADAMS data interface to import data into ANSYS force c arried chains and lifting systems heave compensation system critical components of the force strength check.Finally, in order for this article to verify the design, the design of a small experime ntal platform, with two sets of six degrees of freedom swing to simulate barge heave, ve rify the compensation effect of the compensating system.