INTERNATIONAL DEVELOPMENT AND VALIDATION OF A DISTRIBUTED SIMULATION FOR NAVAL SHIP REPLENISHMENT AT SEA

2021 ◽  
Vol 161 (A1) ◽  
Author(s):  
K McTaggart ◽  
D Tozzi ◽  
G Henry ◽  
F Valdenazzi ◽  
N Stuntz
Keyword(s):  
International Development ◽  
Hydrodynamic Interaction ◽  
Distributed Simulation ◽  
Simulation Models ◽  
Lessons Learned ◽  
Ship Motions ◽  
The United Kingdom ◽  
High Level ◽  
Development And Validation ◽  
Replenishment At Sea

Navies from Canada, France, Germany, Italy, and the United Kingdom collaborated to develop and validate a distributed simulation of ship replenishment at sea. The simulation models the seaway, ship motions including hydrodynamic interaction effects between ships, and the transfer of a solid payload between ships using replenishment gear. The simulation was developed using the High Level Architecture (HLA), which facilitates sharing of data and synchronization of simulation time among software components on networked computers. Simulation results were validated using experimental data. The project demonstrated successful application of distributed simulation to complex naval platform systems. Lessons learned are shared for several areas, including seaway modelling, ship hydrodynamic interaction, and planning of model tests and sea trials for simulation validation.

International Development and Validation of a Distributed Simulation for Naval Ship Replenishment at Sea

2019 ◽  
Vol 161 (A1) ◽  
Keyword(s):  
International Development ◽  
Hydrodynamic Interaction ◽  
Distributed Simulation ◽  
Simulation Models ◽  
Lessons Learned ◽  
Ship Motions ◽  
The United Kingdom ◽  
High Level ◽  
Development And Validation ◽  
Replenishment At Sea

Navies from Canada, France, Germany, Italy, and the United Kingdom collaborated to develop and validate a distributed simulation of ship replenishment at sea. The simulation models the seaway, ship motions including hydrodynamic interaction effects between ships, and the transfer of a solid payload between ships using replenishment gear. The simulation was developed using the High Level Architecture (HLA), which facilitates sharing of data and synchronization of simulation time among software components on networked computers. Simulation results were validated using experimental data. The project demonstrated successful application of distributed simulation to complex naval platform systems. Lessons learned are shared for several areas, including seaway modelling, ship hydrodynamic interaction, and planning of model tests and sea trials for simulation validation.

Physics-Based Modelling of Ship Replenishment at Sea Using Distributed Simulation

2009 ◽  
Author(s):  
K. A. McTaggart ◽  
R. G. Langlois
Keyword(s):  
Time Management ◽  
Data Exchange ◽  
Distributed Simulation ◽  
Ship Motions ◽  
High Level Architecture ◽  
Detailed Modelling ◽  
Naval Operations ◽  
Physics Based Simulation ◽  
High Level ◽  
Replenishment At Sea

Replenishment at sea is essential for sustainment of naval operations away from home ports. This paper describes physics-based simulation of the transfer of solid payloads between two ships. For a given operational scenario, the simulation can determine whether events such as breakage of replenishment gear or immersion of payload in the ocean will occur. The simulation includes detailed modelling of the replenishment gear and ship motions. Distributed simulation using the High Level Architecture facilitates time management and data exchange among simulation components.

scholarly journals Multiple Resolution Modeling: A Particular Case of Distributed Simulation

Information ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 469
Author(s):  
Mario Marin ◽  
Gene Lee ◽  
Jaeho Kim
Keyword(s):  
Distributed Simulation ◽  
Research Area ◽  
Simulation System ◽  
Lessons Learned ◽  
Point Of View ◽  
High Level Architecture ◽  
Unique Form ◽  
The Future ◽  
New Research ◽  
High Level

Multiple resolution modeling (MRM) is the future of distributed simulation. This article describes different definitions and notions related to MRM. MRM is a relatively new research area, and there is a demand for simulator integration from a modeling complexity point of view. This article also analyzes a taxonomy based on the experience of the researchers in detail. Finally, an example that uses the high-level architecture (HLA) is explained to illustrate the above definitions and, in particular, to look at the problems that are common to these distributed simulation configurations. The steps required to build an MRM distributed simulation system are introduced. The conclusions describe the lessons learned for this unique form of distributed simulation.

DISTRIBUTED MANUFACTURING SIMULATION AS AN ENABLING TECHNOLOGY FOR THE DIGITAL FACTORY

2003 ◽  
Vol 02 (01) ◽  
pp. 111-126 ◽  
Author(s):  
STEFFEN STRASSBURGER ◽  
GÜNTER SCHMIDGALL ◽  
SIEGMAR HAASIS
Keyword(s):  
Supply Chains ◽  
Distributed Simulation ◽  
Simulation Models ◽  
Organizational Level ◽  
Digital Factory ◽  
Distributed Modeling ◽  
Wide Range ◽  
Simulation Paradigm ◽  
Manufacturing Applications ◽  
High Level

In this article the technological possibilities offered by the interoperability standard High Level Architecture (HLA) are introduced and discussed. The main focus is hereby on manufacturing applications, but the same approach is applicable to a wide range of other scenarios, e.g. in the area of supply chains, logistics, product simulation etc. Especially for challenging objectives like the digital factory which many enterprises are currently facing, simulation applications are gaining growing importance. While simulations nowadays are often still applied for isolated problems, the consideration of the global context has a growing importance. A solution for solving this problem is offered by the distributed simulation paradigm: simulations are no longer single purpose applications. Rather, individual simulation models can be combined with each other for serving different purposes. Coupled simulations of different parts of a factory can be used to perform global optimizations. The same paradigm can be used for entire supply chains. For applying the distributed simulation paradigm, technological as well as organizational aspects have to be considered. On the technological side, it is necessary to integrate a certain interoperability standard into the tools which need to be coupled with each other. On the organizational level, an enterprise wide process has to be established, which defines how distributed modeling and simulation shall be applied. This article discusses solutions for both issues and illustrates them using a practical application scenario.

Managing Complex Vehicle System Simulation Models for Automotive System Development

2004 ◽  
Vol 4 (4) ◽  
pp. 372-378 ◽  
Author(s):  
Mark Jennings ◽  
Ravi Rangan
Keyword(s):  
Hybrid Electric Vehicle ◽  
System Development ◽  
System Modeling ◽  
Simulation Models ◽  
Ford Motor Company ◽  
Product Lifecycle Management ◽  
Lessons Learned ◽  
Model Management ◽  
Pilot Implementation ◽  
High Level

A Model Management System (MMS) for vehicle dynamic system modeling is described, including lessons learned from a pilot implementation at Ford Motor Company. For complex vehicle systems, early phases of product development (requirements analysis and high-level conceptual design) drive innovation, cost, quality, and timing. These phases have received little attention relative to product lifecycle management. Selected system model architectures are reviewed with elements of model configuration and application to hybrid electric vehicle development. The examples establish MMS requirements, leading to a reference information model promoting collaboration, reuse, and process autonomy.

Two Novel Adams Model Encapsulation Methods in HLA Based Collaborative Product Development

2011 ◽  
Vol 130-134 ◽  
pp. 1085-1091
Author(s):  
Cheng Ma ◽  
Tian Yuan Xiao ◽  
Wen Hui Fan ◽  
Hong Bo Sun ◽  
Ying Chao Yue
Keyword(s):  
Distributed Simulation ◽  
Simulation Models ◽  
Simulation Software ◽  
Third Party ◽  
Interactive Simulation ◽  
High Level Architecture ◽  
High Level ◽  
Multi Body ◽  
Conclusion Section ◽  
Encapsulation Methods

As a well-known standard of distributed simulation, High Level Architecture (HLA) has adopted as basic framework in most distributed interactive simulation (DIS) systems. At the same time, DIS always involves multiple disciplinary simulation models which are supported by different software. And these software are not always compatible with HLA. For example, though widely used in mechanical kinetics and kinematics simulations, ADAMS, a multi-body kinetics simulation software cannot directly support HLA. To address this issue, this paper analyses redevelopment of legacy systems and models (such as Adams models) in DIS environment and proposes two encapsulation methods which is based on third-party software and user-defined subroutines respectively. A case study demonstrates the feasibility of the proposed methods. And a brief comparison is also given in conclusion section.

Nutrition Embedding Evaluation Programme: An Evaluation Technical Assistance Model for Supporting Civil Society Organizations to Conduct Quality Nutrition Impact Evaluations

2019 ◽  
Vol 43 (6) ◽  
pp. 396-425
Author(s):  
Monica Kothari ◽  
Dionne Mackison ◽  
Carolyn Hemminger ◽  
Sandrine Fimbi ◽  
Denise Lionetti ◽  
...  
Keyword(s):  
Civil Society ◽  
International Development ◽  
Technical Assistance ◽  
Evidence Base ◽  
Lessons Learned ◽  
Civil Society Organizations ◽  
The United Kingdom ◽  
Evaluation Programme ◽  
Best Value

The Nutrition Embedding Evaluation Programme (NEEP) was a global 4-year program (2013–2017) funded by the United Kingdom Department for International Development created to respond to gaps in the nutrition evidence base. The NEEP implementing agency—PATH—provided grants and evaluation technical assistance (ETA) to civil society organizations (CSOs) from 12 countries to conduct robust nutrition-related impact evaluations. The programmatic approach of having an intermediary agent to manage the funding and ETA mechanisms for nutrition impact evaluations is rare and therefore provides a unique opportunity to understand its effectiveness. Over the program duration, NEEP collected lessons learned that were analyzed and disaggregated into key themes considered critical for the completion of high-quality impact evaluations. From these lessons learned, NEEP provides an ETA program model that can be replicated or adapted to other international development sectors. This model highlights the key role of the three tiers (donor, ETA manager, and CSOs) in ensuring the best value for money and effective technical support for conducting impact evaluations and fostering the importance of knowledge uptake and evaluative culture for maximum knowledge diffusion. In this way, global research can be targeted to approaches that provide options to collaborate with the program implementers and contribute to a holistic evidence base to inform policy and programmatic decisions.

The Viewable Distributed Simulation Linkage Development Tool Based on Factory Mechanism

2011 ◽  
Vol 58-60 ◽  
pp. 1813-1818
Author(s):  
Yuan Zhang ◽  
Li Min Zhang
Keyword(s):  
Basic Characteristic ◽  
Distributed Simulation ◽  
Simulation Models ◽  
High Level Architecture ◽  
General Development ◽  
Integration Platform ◽  
Development Tool ◽  
Development Direction ◽  
High Level ◽  
Engine Development

High level architecture (HLA) establishes a common simulation technology framework, which supports the linkage between different simulation models, and represents the latest development direction of the distributed simulated. Considering the unity and telescopic expandability of the network linkage interface, the simulation linkage engine development tool was designed and realized. Firstly, the basic characteristic of simulation linkage platform were analyzed, and then the solution of simulation linkage engine was provided during the design and development, finally, the viewable and general development tool supporting the distributed simulation linkage was designed, which provided a high-effective, flexible and shortcut integration platform.

Responding to the needs of survivors of sexual violence: Do we know what works?

2014 ◽  
Vol 96 (894) ◽  
pp. 585-600 ◽  
Author(s):  
Doris Schopper
Keyword(s):  
New York ◽  
Sexual Violence ◽  
International Development ◽  
The United States ◽  
Lessons Learned ◽  
Call To Action ◽  
Non Governmental Organizations ◽  
Concrete Action ◽  
The Uk ◽  
High Level

During the past twelve months, the issue of sexual violence in conflict and emergencies has received an unprecedented amount of attention at the highest political and institutional levels. In 2013, the United Kingdom's Department for International Development (DFID) launched a Call to Action to mobilize donors, UN agencies, non-governmental organizations (NGOs) and other stakeholders on protecting women and girls in humanitarian emergencies, culminating in the high-level event “Protecting Girls and Women in Emergencies” in November 2013. As of August 2014, over forty partners (including governments, United Nations (UN) agencies and NGOs) had made commitments to the Call to Action. Furthermore, in June 2014 the “Global Summit to End Sexual Violence in Conflict”, co-chaired by the UK Foreign Secretary and Angelina Jolie, Special Envoy for the UN High Commissioner for Refugees (UNHCR), gathered 1,700 delegates and 129 country delegations. In his summary, the chair of the Global Summit states: “We must apply the lessons we have learned and move from condemnation to concrete action. We must all live up to the commitments we have made.”1In September 2014, the United States organized a Call to Action event in New York during the UN General Assembly with the purpose of sharing progress on commitments made in November 2013. It thus seems that efforts to raise awareness about sexual violence in conflict and emergencies and advocate for a much stronger commitment to action are well under way. But is this enough? Is there enough evidence from lessons learned to allow us to increase and improve our response?

scholarly journals Review of Recent Drilling Projects in Unconventional Geothermal Resources at Campi Flegrei Caldera, Cornubian Batholith and Williston Sedimentary Basin

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3306
Author(s):  
Renato Somma ◽  
Daniela Blessent ◽  
Jasmin Raymond ◽  
Madeline Constance ◽  
Lucy Cotton ◽  
...  
Keyword(s):  
Renewable Energy Sources ◽  
Lessons Learned ◽  
Campi Flegrei ◽  
Geothermal Resources ◽  
Scientific Drilling ◽  
Pilot Hole ◽  
The United Kingdom ◽  
Extensional Faulting ◽  
Drilling Site ◽  
Drilling Project

Unconventional geothermal resource development can contribute to increase power generation from renewable energy sources in countries without conventional hydrothermal reservoirs, which are usually associated with magmatic activity and extensional faulting, as well as to expand the generation in those regions where conventional resources are already used. Three recent drilling experiences focused on the characterization of unconventional resources are described and compared: the Campi Flegrei Deep Drilling Project (CFDDP) in Italy, the United Downs Deep Geothermal Power (UDDGP) project in the United Kingdom, and the DEEP Earth Energy Production in Canada. The main aspects of each project are described (geology, drilling, data collection, communication strategies) and compared to discuss challenges encountered at the tree sites considered, including a scientific drilling project (CFDDP) and two industrial ones (UDDGP and DEEP). The first project, at the first stage of pilot hole, although not reaching deep supercritical targets, showed extremely high, very rare thermal gradients even at shallow depths. Although each project has its own history, as well as social and economic context, the lessons learned at each drilling site can be used to further facilitate geothermal energy development.

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