Chip clearance management using a compact aerodynamic thermal model

摘要

Disclosed are systems and methods for controlling an engineering system using fluids. The system and method may include a model processor that generates model output, the model processor for setting the dynamic state of the model processor that is input to the open loop model based on the model operating mode. A state setting module may be included, and the open loop model generates the current model as a function of dynamic state and model input. The constraints on the current model are based on a series of cycle synthesis modules, where each part of the series of cycle synthesis modules models the components of a control system cycle and includes a set of utilities, which are the physical properties associated with the components. Based on the mathematical abstraction, the series of cycle synthesis modules includes a rotator module that estimates the tip clearance between the rotor and the rotor case. The model processor may further include an estimated state module that determines an estimated state of the model based on the model output of the previous state of the open loop model and the current model.