Ship segment construction precision control method based on digital twin

Abstract

The invention discloses a ship segment construction precision control method based on the digital twin. The ship segment construction precision control method comprises the following steps of 1) constructing a ship segment digital twin body; 2) collecting sensory data of ship segments in the construction process, sending the sensory data to the digital twin body, and conducting updating; 3) fusingthe sensory data with technology information in the construction process to form twin data, and calculating the segment accuracy of all ship segments; 4) calculating a deviation between the total accuracy in the actual construction process and the accuracy in the theoretical construction process; 5) conducting accuracy compensation according to the above deviation; and 6) judging whether the accuracy requirement is met or not. By utilizing the digital twin technology, a segmented digital twin model of the ship segment construction process is constructed, real-time simulation and monitoring ofthe ship segment construction process are achieved, the problem about synergy between the technology and the accuracy in the ship segment construction process is well solved, and the quality of shipsegment construction is improved.

Description

technical field [0001] The present invention relates to a method for controlling the accuracy of ship segmented construction, in particular to a method for controlling the accuracy of ship segmented construction based on digital twins. Background technique [0002] Digital twin technology refers to the digitalization of objects in the physical world to build an identical entity in the digital world, so as to realize the understanding, analysis and optimization of physical entities. Apply digital twin technology to the process of ship segmental construction, construct a twin model of ship segmental construction, obtain and analyze real-time status information during the segmental construction process, and the segmental construction twin model will make corresponding dynamics based on real-time information Operation status, realize state simulation and monitoring of ship construction process, process optimization, fault prediction, and meet the requirements of intelligent and ...

AI Technical Summary

Problems solved by technology

[0003] At present, shipbuilding mainly has the following shortcomings: 1. The data measurement accuracy is low, and the data measurement time is long

Due to the large hull segments, shipbuilding still relies on manual labor as the main form of work, and the accuracy of the measurement equipment is not high, so it is difficult to collect high-accuracy segmented outer plate data

Second, the deformation phenomenon is more obvious during the construction process

During the welding process, material shrinkage, disordered order, etc. will cause serious deformation problems, which cannot be controlled, and it is impossible to accurately judge by relying on the experience of workers

3. The segmented construction period is long, the processing process is complex, and there are many procedures, there will be processing errors and assembly errors, and eventually a large cumulative error will occur

Images