A digital twin feasibility study (Part II): Non-deterministic predictions of fatigue life using in-situ diagnostics and prognostics

Abstract Comprehensive in situ (designed-in) diagnostic capabilities have been incorporated into digital microelectronic systems for years, yet similar capabilities are not commonly incorporated into the design of analog microelectronics. And as feature sizes shrink and back end interconnect metallization becomes more complex, the need for effective diagnostics for analog circuits becomes ever more critical. This paper presents concepts for incorporating in situ diagnostic capability into analog circuit designs. Aspects of analog diagnostic system architecture are discussed as well as nodal measurement scenarios for common signal types. As microelectronic feature sizes continue to shrink, diagnostic capabilities such as those presented here will become essential to the process of fault localization in analog circuits.

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Systems of In Situ Diagnostics of Plasma-Surface Interaction in a Mephist-1 Tokamak

Russian Physics Journal ◽

10.1007/s11182-021-02309-2 ◽

2021 ◽

Author(s):

V. A. Kurnaev ◽

V. E. Nikolaeva ◽

S. A. Krat ◽

E. D. Vovchenko ◽

A. V. Kaziev ◽

...

Keyword(s):

Surface Interaction ◽

Plasma Surface ◽

In Situ Diagnostics

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Investigating the influence mechanism of hydrogen partial pressure on fracture toughness and fatigue life by in-situ hydrogen permeation

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2021.03.183 ◽

2021 ◽

Author(s):

Shuai Zhang ◽

Juan Li ◽

Teng An ◽

Shuqi Zheng ◽

Ke Yang ◽

...

Keyword(s):

Fracture Toughness ◽

Fatigue Life ◽

Partial Pressure ◽

Hydrogen Permeation ◽

Hydrogen Partial Pressure ◽

Influence Mechanism

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Poly(ethylene carbonate) as a surface-eroding biomaterial for in situ forming parenteral drug delivery systems: A feasibility study

European Journal of Pharmaceutics and Biopharmaceutics ◽

10.1016/j.ejpb.2010.07.009 ◽

2010 ◽

Vol 76 (2) ◽

pp. 222-229 ◽

Cited By ~ 19

Author(s):

Yu Liu ◽

Annette Kemmer ◽

Klaus Keim ◽

Catherine Curdy ◽

Holger Petersen ◽

...

Keyword(s):

Drug Delivery ◽

Feasibility Study ◽

Drug Delivery Systems ◽

Ethylene Carbonate ◽

Delivery Systems ◽

In Situ Forming ◽

Parenteral Drug Delivery ◽

Poly Ethylene ◽

Parenteral Drug

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In-situ Diagnostics of Composite Filament Material Suitable for Bi-Polar Plate Using Additive Manufacturing

ECS Transactions ◽

10.1149/10408.0283ecst ◽

2021 ◽

Vol 104 (8) ◽

pp. 283-292

Author(s):

David Alexander ◽

Jake Pellicotte ◽

Alejandro Mejia ◽

Caitlin Benway ◽

Calvin Maurice Stewart ◽

...

Keyword(s):

Additive Manufacturing ◽

Composite Filament ◽

In Situ Diagnostics

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Boosting the Capabilities of Gas Stand Data Acquisition and Control Systems by Using a Digital Twin Based on a Holistic Turbocharger Model

10.1115/icef2021-66745 ◽

2021 ◽

Author(s):

José R. Serrano ◽

Luis Miguel García-Cuevas ◽

Vishnu Samala ◽

Juan Antonio López-Carrillo ◽

Holger Mai

Keyword(s):

Data Acquisition ◽

Control Systems ◽

Heat Fluxes ◽

Testing Time ◽

Time Saving ◽

Digital Twin ◽

Dimensional Modeling ◽

On Line ◽

And Control

Abstract During the last decade, increasingly advanced turbocharger models have been developed for sizing, engine matching and one-dimensional modeling. This work goes further and, instead of using these models for turbocharged engines design or analysis, it implements them in the data acquisition and control system of a turbocharger gas stand. This way, interesting new capabilities arise. The paper shows that there are important synergies between advanced turbocharger gas stand data acquisition and control systems and the modern turbocharger holistic models that have not been deeply exploited until now. They can be summarized as: on-line heat fluxes analysis, in-situ outlier testing points detection, testing time saving and using digital-twin techniques to monitor turbocharger health during testing.

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