Pareto Optimal Controller for Hybrid Simulation

Verma, Mohit; Stefanaki, Aikaterini; Sivaselvan, M. V.; Rajasankar, J.; Iyer, Nagesh R.

doi:10.3850/978-981-09-1139-3_350

Cited by 1 publication

(2 citation statements)

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“…(This feedback linearization formulation has evolved over the past few years. The concept was first proposed in Verma (2018) 17 and has been implemented as an impedance matrix, that is suitable for passivity‐based stability analysis, in this paper. Additional details are presented in Section 6.)…”

Section: Base‐isolated Fluid‐filled Vessel Mil Configurationmentioning

confidence: 99%

“…This feedback representation enables formulation of an impedance matrix, with recognizable transfer functions, for a highly nonlinear system. Although the concept of feedback linearization is not new (see Verma (2018) 17 ), this paper presents it as an impedance matrix that is suitable for passivity‐based stability analysis. This development has made the technique more systematic and effective.…”

Section: Closing Remarksmentioning

confidence: 99%

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Impedance‐matching model‐in‐the‐loop simulation

Parsi

Sivaselvan

Whittaker

2023

Earthq Engng Struct Dyn

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Impedance matching is a novel approach to executing model‐in‐the‐loop (MIL) simulations. The concept, key features, and sample applications of this approach have been described in a series of publications. This paper advances theory and implementation for impedance‐matching MIL by: (1) developing a feedback linearization technique for implementing MIL for nonlinear virtual systems, (2) systematically characterizing MIL performance‐stability tradeoffs using three design‐oriented criteria—performance: defined as closeness of the controlled‐actuator impedance to the virtual‐boundary impedance; control effort: low controller response at high frequencies to reduce sensitivity to measurement noise and uncertainties in the actuator model; and stability: pursued using passivity of the controlled actuator system, and (3) assessing, through experimentation, the robustness of two ways to estimate feedback reaction force from the test article. These fundamental advancements to MIL are described using a one‐dimensional configuration consisting of a fluid‐filled cylindrical vessel as the physical test article and a uniaxial hydraulic shake table controlled to imitate different seismic isolation systems at the base of the vessel.

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Section: Base‐isolated Fluid‐filled Vessel Mil Configurationmentioning

confidence: 99%

Section: Closing Remarksmentioning

confidence: 99%