基于多维约束非线性模型预测控制的增材制造控制方法
By employing a multidimensional constrained nonlinear model predictive control method, the problems of heat accumulation and thermal degradation in soft material additive manufacturing were solved. This method enabled coordinated control of heating power and printing speed, ensuring the molding quality and hardware safety of soft materials and improving the steady-state control accuracy of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- ZHEJIANG UNIV
- Filing Date
- 2026-06-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing additive manufacturing of soft materials suffers from problems such as heat accumulation and irreversible thermal degradation caused by single-variable control, neglect of the coupling effect between mechanical motion parameters and thermodynamics, and mismatch of linear models under high-temperature conditions, leading to material scorching, carbonization, and thermal stress warping.
A multidimensional constrained nonlinear model predictive control method is adopted. By constructing a nonlinear differential predictive model that couples heating power and printing speed, a higher-order thermal radiation term is introduced, and a multi-objective cost function and dynamic physical boundary constraints are set to achieve dynamic coordinated control of heating power and printing speed.
It effectively suppressed thermal overshoot, ensured the molding quality of soft materials, improved the steady-state control accuracy of the system and the operational safety of the hardware, and achieved an efficient printing process.
Smart Images
Figure CN122401908A_ABST