Towards a comprehensive framework for simulation-based design validation of vehicle systems. (6th December 2012)

• Record Type: Journal Article
• Authors: Kokkolaras, M.; Hulbert, G.; Papalambros, P.; Mourelatos, Z.; Yang, R.J.; Brudnak, M.; Gorsich, D.
• Is Part Of: International journal of vehicle design. Volume 61:Number 1/2/3/4(2013)
• Page Start: 233
• Page End: 248
• Publication Date: 2012-12-06
• Subjects: simulation -- dynamic systems -- validation metrics -- probabilistic principal component analysis -- Bayesian interval-based hypothesis testing -- confidence quantification -- sequential design optimisation -- calibration-based validation; Motor vehicles -- Design and construction -- Periodicals; 629.231
• Languages: English
• ISSNs: 0143-3369

Abstract

We present an overview of our most recent and ongoing research efforts to develop a comprehensive framework for simulation-based design validation of vehicle systems. Specifically, we present the three major building blocks of our framework: (1) the introduction of an appropriate validation metric for dealing with the multivariate functional data that are the output of dynamic vehicle systems; (2) the robust implementation of a Bayesian interval-based hypothesis testing technique for quantifying the confidence in simulation models used for design under uncertainty; (3) the development of a sequential design optimisation and calibration-based validation methodology that addresses the inadequacy of current validation practices in simulation-based design optimisation. We present a simple yet illustrative example and discuss the techniques being developed currently that will complete the proposed framework.