LiDICS: a light dynamics interface for multi-domain simulation based on the FMI-standard

The assessment of adaptive façades faces several challenges, including the representation of adjustable material and geometric properties within building performance simulation. This paper introduces a methodical and model-based interface dedicated to this issue. Adjustable material and geometric façade properties can be captured and continuously adapted within the building performance simulation using this model, without the need to reinitialise the simulation as required with matrix-based methods. The method comprises two steps: model training and export. Model training transforms ray-tracing-based sampling outcomes into an algebraic function. Model export generates a Functional Mock-up Unit. The LiDICS method is applied to switchable membrane cushion constructions with complementary printing patterns. The model training achieves a high accuracy (r2 = 99.4%). Subsequently, an inter-model validation is conducted using annual simulation from the RADIANCE 3-phase method, likewise resulting in high accuracy (r2 = 98.5%). Lastly, a brief analysis is conducted to compare four operation strategies regarding coupled comfort and energy assessment.