一种船用吸力帆分段制造焊接收缩与装配偏差补偿方法
By constructing a thermodynamic segmented model and optimizing welding path planning, combined with a digital twin model, the problems of welding shrinkage deformation and assembly deviation in the manufacturing of marine suction sails were solved, achieving high-precision manufacturing adjustments and improving the stability and accuracy of the overall structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CONTIOCEAN (NANTONG) E P EQUIP CO LTD
- Filing Date
- 2026-04-29
- Publication Date
- 2026-07-17
AI Technical Summary
In the manufacturing process of marine suction sails, the dimensional deviations caused by welding shrinkage deformation cannot be effectively predicted and controlled, affecting the accuracy and stability of the overall structure. Especially in the assembly of complex curved surface structures, the cumulative effect of deviations is serious, leading to misalignment or gaps, affecting strength and sealing.
A thermodynamic piecewise model is constructed using the finite difference method to obtain the temperature distribution field and initial shrinkage vector. The prediction model is then trained using the support vector machine algorithm to generate a shrinkage deformation distribution map, optimize the welding path planning, and simulate the assembly and fitting process using 3D scanning data fusion and mesh deformation algorithms to determine the deviation correction matrix. Virtual force field constraints are applied to correct the geometry and generate a digital twin model.
It significantly improves welding deformation control and assembly accuracy, provides an efficient and precise manufacturing adjustment solution, ensures that the overall accuracy meets the standards, and solves the complex problems of welding shrinkage deformation and assembly deviation.
Smart Images
Figure CN122113286B_ABST