Cited by Lee Sonogan
Knowledge of the internal structure of an object or device under investigation proceeds from the basic idea of constructing its dynamic behavioral relations governed by a set of differential/algebraic equations that characterize its response. These equations can be partial differential equations leading to finite element or finite difference relations requiring a complex numerical solution on a super computer or ordinary differential equations requiring sophisticated numerical integration techniques to obtain the desired solution. Discrete dynamic systems evolving from digitized data acquisition are typically captured by sampled-data (continuous-to-discrete) representations characterized by a set of difference equations specifying the underlying system dynamics. In any case, with a mathematical description in hand, Grey-Box modeling techniques have evolved, concerned with the estimation of model parameters embedded in a prescribed set of equations (the system) governing its behavior, while capturing the underlying physical phenomenology of the problem at hand.
Publication: U.S. Department of Energy Office of Scientific and Technical Information (Peer-Reviewed Journal)
Pub Date: 7 Jun, 2021 Doi: https://www.osti.gov/biblio/1806417
Keywords: Pragmatic Mass/Spring, Load Resistance, Grey-Box Approach, Vibration Design.
https://www.osti.gov/biblio/1806417 (Plenty more sections and references in this research article)