Adaptive Control of Hot Isostatic Pressing (HIP) for Metal Matrix Composite Fabrication

93621117 Mehra金属基复合材料（MMC）的制造需要使用复杂的制造工艺。热等静压（HIP）是其中的一种工艺，它正成为先进飞机MMC机身结构板加固的关键技术。提出的目标是利用现代控制理论、系统识别和神经网络技术开发一种分层的两级自适应优化控制器。2级控制器最大限度地降低了每单位生产的最终成本，1级控制器调节了HIP过程，以达到2级控制器规定的最佳温度和压力曲线。第一阶段的研究包括(I)最先进的调查（ii）从实际数据中识别1级过程模型（iii）自适应模型预测控制器（MPC）的设计（iv） MPC控制器的测试和(v)二级控制器架构的开发。材料技术领域的领导者IBIS Associates将提供分包支持。工业材料技术公司（IMT）是世界上最大的HIP整合商，已经表示愿意支持第一阶段的努力。＊＊＊

93621117 Mehra Fabrication of Metal Matrix Composites (MMC) requires the use of sophisticated manufacturing processes. One such process is Hot Isostatic Pressing (HIP) which is becoming a key technology for consolidating MMC airframe structural panels for advanced aircraft. The objective of proposed effort is to develop a hierarchical two level adaptive optimizing controller using, techniques of Modern Control Theory, System Identification and Neural Networks. The Level 2 controller minimizes the ultimate cost per unit of production and the Level 1 controller regulates the HIP process to achieve optimal temperature and pressure profiles dictated by the Level 2 controller. Phase I research includes (i) a State-of-The-Art survey (ii) identification of Level 1 process models from real data (iii) the design of an adaptive Model Predictive Controller (MPC) (iv) testing of the MPC controller and (v) development of architecture for Level 2 controller. IBIS Associates, a leader in the field of materials technology will provide subcontract support. Industrial Materials Technologies (IMT), the largest HIP consolidator in the world, has indicated their willingness for supporting the Phase I effort. ***