Real-Time Simulation Technologies: Principles, Methodologies, and Applications

Popovici, Katalin; Mosterman, Pieter J.

doi:10.1201/b12667

Cited by 18 publications

(4 citation statements)

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“…This is as opposed to a 'soft' real-time environment where fixed timestep duration may in fact exhibit very slight variation in length, not measurable by the control software itself (e.g. [41,42]). Currently, actuation control hardware is not designed with DHT in mind.…”

Section: Roles and Challenges Of Dht In Earthquake Engineeringmentioning

confidence: 99%

Geographically distributed hybrid testing & collaboration between geotechnical centrifuge and structures laboratories

Ojaghi

Martínez

Dietz

et al. 2018

Earthq. Eng. Eng. Vib.

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. (DHT) is an experimental technique designed to capitalise on advances in modern networking infrastructure to overcome traditional laboratory capacity limitations. By coupling the heterogeneous test apparatus and computational resources of geographically distributed laboratories, DHT provides the means to take on complex, multi-disciplinary challenges with new forms of communication and collaboration. To introduce the opportunity and practicability afforded by DHT, here an exemplar multi-site test is addressed in which a dedicated fibre network and suite of custom software is used to connect the geotechnical centrifuge at the University of Cambridge with a variety of structural dynamics loading apparatus at the University of Oxford and the University of Bristol. While centrifuge time-scaling prevents real-time rates of loading in this test, such experiments may be used to gain valuable insights into physical phenomena, test procedure and accuracy. These and other related experiments have led to the development of the real-time DHT technique and the creation of a flexible framework that aims to facilitate future distributed tests within the UK and beyond. As a further example, a real-time DHT experiment between structural labs using this framework for testing across the Internet is also presented.

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Section: Roles and Challenges Of Dht In Earthquake Engineeringmentioning

confidence: 99%

Geographically distributed hybrid testing & collaboration between geotechnical centrifuge and structures laboratories

Ojaghi

Martínez

Dietz

et al. 2018

Earthq. Eng. Eng. Vib.

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show abstract

“…In terms of flexibility, the best option is the Co-Simulation FMU, described in Figure 4b, since it carries over to the new simulation environment the solver of the original modelling tool, allowing to introduce any model into any FMU-compatible tool. Unfortunately, that flexibility may increase the simulation time, since it exploits a "fixed-step" numerical integrator, which is generally slower than a "variable-step" one [43]. The Model Exchange FMU, reported in Figure 4a, reduces such a disadvantage, thanks to the absence of the solver in the FMU and resorting to the solver of the simulation environment of the destination tool.…”

Section: Multi-system Integrationmentioning

confidence: 99%

An Orchestration Method for Integrated Multi-Disciplinary Simulation in Digital Twin Applications

Brusa,

Dagna,

Delprete

et al. 2023

Aerospace

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In recent years, the methodology of Model-Based System Engineering (MBSE) has become relevant to the design of complex products, especially when safety critical systems need to be addressed. It allows, in fact, the deployment of product development directly through some digital models, allowing an effective traceability of requirements, being allocated upon the system functions, components, and parts. This approach enhances the designer capabilities in controlling the product development, manufacturing and after-market services. However, the application of such a methodology requires overcoming several technological barriers, especially in terms of models integration. The interoperability and management of several models—developed within different software to cover multiple levels of detail across several technical disciplines—is still very difficult, despite the level of maturation achieved by Systems Engineering. This paper describes a possible approach to provide such a connection between tools to allow a complete multi-disciplinary and heterogeneous simulation to analyse complex systems, such as safety-critical ones, which are typical of aerospace applications. Such an application is within a defined industrial context, placing particular attention on the compatibility of the approach with the legacy processes and tools.

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“…Proceedings of the 20th IFAC World Congress Toulouse, France, July 9-14, 2017 (Popovici and Mosterman (2012)), therefore aspects like computational speed and synchronization of events are crucial.…”

Section: The Dynacar Environmentmentioning

confidence: 99%

“…5 shows the overall system architecture. The proposed IVDC is designed to run at 100 Hz, a rate often used for control loops in automotive applications and vehicle dynamics application (Popovici and Mosterman (2012)). The reference development platform for control architecture design is a Workstation-class Notebook (HP ZBook 15 G2) which is equipped with Intel Core i7 4710MQ Processor.…”

Section: Fig 4 Dynacar Setupmentioning

confidence: 99%

Real-time Performance and Safety Validation of an Integrated Vehicle Dynamic Control Strategy

Rachman

Idriz

et al. 2017

IFAC-PapersOnLine

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The state of the art in automotive control has proposed several analytical, simulation and experimental studies of longitudinal adaptive cruise control strategies, and of lateral control strategies. However, methodical integration of these two strategies is to a large extent missing, as well as validation in real-time computing environment of the safety and performance of longitudinal and lateral integrated solutions. This work proposes a real-time validation of an integrated vehicle dynamic control strategy, designed to create safe interaction between longitudinal and lateral controllers: the integrated system is designed, implemented and tested through Dynacar, a real-time simulation environment for the development and validation of vehicle embedded functionalities. The results show that the proposed integrated controller satisfies the performance in terms of real-time computation, path tracking and collision avoidance for various driving situations.

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Real-Time Simulation Technologies: Principles, Methodologies, and Applications

Cited by 18 publications

References 0 publications

Geographically distributed hybrid testing & collaboration between geotechnical centrifuge and structures laboratories

Geographically distributed hybrid testing & collaboration between geotechnical centrifuge and structures laboratories

An Orchestration Method for Integrated Multi-Disciplinary Simulation in Digital Twin Applications

Real-time Performance and Safety Validation of an Integrated Vehicle Dynamic Control Strategy

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