On Standardized Model Integration : Automated Validation in Aircraft System Simulation

Abstract

Designing modern aircraft is not an easy task. Today, it is not enough to optimize aircraft sub-systems at a sub-system level. Instead, a holistic approach is taken whereby the constituent sub-systems need to be designed for the best joint performance. The State-of-the-Art (SotA) in simulating and exchanging simulation models is moving forward at a fast pace. As such, the feasible use of simulation models has increased and additional benefits can be exploited, such as analysing coupled sub-systems in simulators. Furthermore, if aircraft sub-system simulation models are to be utilized to their fullest extent, opensource tooling and the use of open standards, interoperability between domain specific modeling tools, alongside robust and automated processes for model Verification and Validation (V&V) are required.

Realizing Interoperability between MBSE Domains in Aircraft System Development

“…See Sections 2.1 and 2.2 for descriptions of the relevant aspects of the respective standards. In short, the FMI standard concerns the export of models for integration in simulator [13] applications, and the SSP standard primarily focuses on the definition and export of simulators for integration into simulator applications at a higher level of abstraction or for exploitation in different frames of reference.…”

Engineering Domain Interoperability Using the System Structure and Parameterization (SSP) Standard

“…The SSP (Modelica Association 2019) and FMI (FMI Development Group 2020) standards provide standardized formats for establishing interoperability between the different levels of abstraction. The FMI standard concern the export of models for integration in simulator (Hällqvist 2019) applications and the SSP standard primarily focuses on the definition and export of simulators for integration into simulator applications at a higher level of abstraction or for exploitation in different frames of reference. The term Model here refers to mathematical simulation models as specified by Ljung (Ljung and Glad 2004) and Fritzon in (Peter Fritzson 2004).…”

“…The term Model here refers to mathematical simulation models as specified by Ljung (Ljung and Glad 2004) and Fritzon in (Peter Fritzson 2004). A simulator here is also seen as a mathematical simulation model composed of several connected models or simulators exported from a lower level of hierarchy (Hällqvist 2019). The V&V activities are seen as bottom up, a view that is in line with the Validation Level per Level approach as described by (International Council on Systems Engineering 2015).…”

On the Realization of Credible Simulations in Aircraft Development : Efficient and Independent Validation Enabled by Automation

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This thesis serves as a continuation of the licentiate thesis On Standardized Model Integration: Automated Model Validation in Aircraft Systems Simulation [1] which was defended by the author of this thesis in the spring of 2020. Publishing and defending a licentiate thesis is, in Sweden, seen as an important step towards completing a doctoral degree.

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“…The licentiate thesis aims to summarize the post graduate students progress, in a format made publicly available for opposition, in order to stake out a detailed direction for continued research. This thesis expands on the author's licentiate thesis and, consequently, reuses a notable part of the information published in [1].…”