Modeling of a Modern Aircraft Through Calibration Techniques

Abstract

NASA is seeking a new baseline aircraft model to assess the state-of-the-art technology for aircraft noise, emissions, and fuel/energy consumption as an update to a 2005 baseline. The process of modeling engine and airframe models as a system has historically required many iterations at NASA between the airframe and engine models. A new internal process presented in this paper contains a method that simultaneously calibrates an airframe and engine model to known data to create an aircraft system model. The work presented in this paper proposes a new framework in creating new aircraft models for future NASA research. This approach is presented as a general outline applicable to any chosen commercial aircraft. As an applied example, the B737 MAX 8 aircraft is chosen as the integrated engine and airframe model subjected to calibration. Initial results show a close match to available data but further refinement in the process is necessary for this ongoing work.

Validation and Calibration of Conceptual Design Tool SUAVE

“…The surrogate model was generated using Gaussian process regression methods, which formulates a continuous function for thrust and TSFC based on the nearby points of the discrete NPSS dataset, using a normal distribution [27]. NPSS was chosen as the propulsion system software due to the extensive use of the tool throughout published literature for both existing and unconventional designs [28]- [32], along with the presence of documented validations [32]- [34], combined with the collective experience of contributors NASA and consortium members such as GE Aviation, Boeing, Rolls-Royce, Lockheed Martin and others [35].…”

Energy Analysis of Fleet Operations Using Green Liquid Hydrogen and Synthetic Kerosene

“…The surrogate model was generated using Gaussian process regression methods, which formulates a continuous function for thrust and SFC based on the nearby points of the discrete NPSS dataset, using a normal distribution [19]. NPSS was chosen as the propulsion system software due to the extensive use of the tool throughout published literature for both existing and unconventional designs [20]- [24], along with the presence of documented validations [24]- [26], combined with the collective experience of contributors NASA and consortium members such as GE Aviation, Boeing, Rolls-Royce, Lockheed Martin and others [27].…”