检索结果-内蒙古大学图书馆

8th International conference on Structural Dynamics (EURODYN)

作者： Racic, Vitomir Pavic, Aleksandar Univ Sheffield Dept Civil & Struct Engn Sheffield S1 3JD S Yorkshire England

ISBN: (纸本)9789076019314

A mathematical model has been developed to generate stochastic synthetic vertical force signals induced by a single person jumping. The model is based on a unique database of experimentally measured individual jumping loads which has the most extensive range of possible jumping frequencies. The ability to replicate many of the temporal and spectral features of real jumping loads gives this model a definite advantage over the conventional half-sine models coupled with Fourier series analysis. This includes modelling of the omnipresent lack of symmetry of individual jumping pulses and jump-by-jump variations in amplitudes and timing. The model therefore belongs to a new generation of synthetic narrow band jumping loads which simulate reality better. The proposed mathematical concept for characterisation of near-periodic jumping pulses may be utilised in vibration serviceability assessment of civil engineering assembly structures, such as grandstands, spectator galleries, footbridges and concert or gym floors, to estimate more realistically dynamic structural response due to people jumping.

关键词： vibration serviceability human-structure dynamic interaction jumping modelling force load stadia grandstands floors footbridges

来源：评论

学校读者我要写书评

暂无评论

Solar cell mathematical modelling comparing single and double diode under three parameter approach

Solar cell mathematical modelling comparing single and doubl...

引用

2021 IEEE PES Innovative Smart Grid Technologies conference - Latin America, ISGT Latin America 2021

作者： Montufar, Marcelo Pavon, Wilson Jaramillo, Manuel Simani, Silvio Universidad Politécnica Salesiana Department of Electrical Engineering Quito Ecuador Università Degli Studi di Ferrara Department of Electrical Engineering Ferrara Italy

ISBN: (纸本)9781665444217

This paper presents a solar cell mathematical modelling and its irradiance and temperature influence, varying Rs parameter for I-V curve. The study has considered two study cases, a single and a double diode solar cell, solving by Newton Raphson iterative technique. In both scenarios, the solar cell is represented by schematic models, where the currents are defined by Kirchhoff's law. The solar cells equations describe the shortcircuit current and open-circuit voltage behaviour in I-V curves. The module Sunergy CSUN225-60M is implemented MatlabSimulink comparing the model development for the proposes mathematical model. The results show that irradiance and temperature have direct impact in photogenerated current, and open-circuit voltage, while Rs parameter only affects inversely the maximum power point. © 2021 IEEE.

关键词： Diodes

来源：评论

学校读者我要写书评

暂无评论

A fuzzy-based model to measure supplier performance with lean attributes

A fuzzy-based model to measure supplier performance with lea...

引用

Asia modelling Symposium 2010: 4th International conference on mathematical modelling and Computer Simulation, AMS2010

作者： Behrouzi, Farzad Wong, Kuan Yew Kuah, Chuen Tse Dept. Manufacturing and Industrial Engineering Faculty of Mechanical Engineering Universiti Teknologi Malaysia 81310 UTM Skudai Malaysia

ISBN: (纸本)9780769540627

Nowadays, outsourcing as a strategic goal is becoming a critical success factor used by different organizations in order to provide high quality, and low price products for their customers. In this context, supplier selection has become an extremely important decision for companies. Management and human resource researchers have focused more on qualitative aspects and conceptual models, whereas engineering science researchers have developed quantitative and full-mathematical models and techniques. Since it is important to consider both aspects of supplier performance, this paper develops a fuzzy-based model to evaluate the leanness of supplier performance. The model presented here, gives a single unit-less score, which clearly shows the leanness of supplier performance. Based on the final score, managers can easily decide on supplier selection. The model includes a systematic measurement of supplier performance with six characteristics: flexible, dynamic, fuzzy logical, continuous improvement, easy to use, and single unit-less (dimensionless) score. © 2010 IEEE.

关键词： Fuzzy logic

来源：评论

学校读者我要写书评

暂无评论

modelling elasticity in solids using active cubes - Application to simulated operations 1st

Modelling elasticity in solids using active cubes - Applicat...

引用

1st International conference on Computer Vision, Virtual Reality, and Robotics in Medicine, CVRMed 1995

作者： Bro-Nielsen, Morten INRIA Epidaure group 2004 route des Lucioles Sophia Antipolis cedex06902 France Institute of Mathematical Modelling Technical University of Denmark Bldg. 321 LyngbyDK-2800 Denmark

ISBN: (纸本)9783540591207

This paper describes an approach to elastic modelling of human tissue based on the use of 3D solid active models - active cubes [2] - and a shape description based on the metric tensor in a solid. Active cubes are used because they provide a natural parameterization of the surface and the interior of the given object when deformed to match the object's shape. Using the metric tensor to store the shape of the deformed active cube the elastic behaviour of the object in response to applied forces or subject to constraints is modelled by minimizing an energy based on the metric tensor. The application of this approach to modelling the elastic deformation of human tissue in response to movement of bones is demonstrated. © Springer-Verlag Berlin Heidelberg 1995.

关键词： Tensors

来源：评论

学校读者我要写书评

暂无评论

Automation and cognition: A methodological process for humancentred design to minimize errors 12th

Automation and cognition: A methodological process for human...

引用

12th International conference on Integrated Modeling and Analysis in Applied Control and Automation, IMAACA 2019

作者： Mercantini, Jean-Marc Domaine Universitaire de Saint Jérôme Avenue Escadrille Normandie-Niemen Marseille Cedex 20 13397 France

ISBN: (纸本)9788885741324

Disturbances undergone by a complex system can come as much from its external environment as from the internal elements which constitute it. Complex systems are understood in this study as composed of intelligent machines and humans (IMH), and being in charge to accomplish complex tasks in a collaborative way. Performances of these systems, in terms of robustness, adaptation and resilience, strongly depend on the behaviour of the IMH duo. The works that are the subject of this paper focus on the study of the IMH duo and propose a methodological process using jointly cognitive approaches with formal modelling and simulation to analyse, design and control complex systems. For those systems, human beings are necessarily implied in their global behaviour "including stability", what crucially calls for a better understanding of their behaviour facing diverse complex situations: normal situations, risky situations, critical and accidental situations. Tools and methods proposed by cognitive Sciences, Cognitive engineering and Knowledge engineering allow to take into account the different mechanisms involved in human behaviour to enrich complex system models for a better design and control to munimize human errors. © 12th International conference on Integrated Modeling and Analysis in Applied Control and Automation. All rights reserved.

关键词： Errors

来源：评论

学校读者我要写书评

暂无评论

Application of the CAMEL process simulator to the dynamic simulation of gas turbines

引用

ENERGY CONVERSION AND MANAGEMENT 2007年第11期48卷 2792-2801页

作者： Cennerilli, S. Sciubba, E. Univ Roma 1 La Sapienza Dept Mech & Aeronaut Engn I-00184 Rome Italy

This work presents the development of a modular code for the dynamic simulation of a single-shaft gas turbine and an application to a 50 kW machine. The simulation package, CAMEL (R), is a modular object-oriented process simulator for energy conversion systems, conceived and developed in the last decade by the Authors' group at the Mechanical and Aeronautical engineering Department of the University of Roma 1 "La Sapienza", the advantages of an object-oriented approach being the flexibility and the user-friendly interface. The component library of the original (steady-state) code has been augmented by implementing the dynamic models of all of the gas-turbine components: the method is still based on a classical black-box modelling and each component can be assembled as in an engineering process scheme in which the connections between two elements represent either a mechanical power coupling or a working fluid stream. In order to obtain an accurate description of the gas-turbine phenomenology, each component is described by a non/linear set of both algebraic and first-order differential-equations. The global non-linear system is advanced in time by means of a fourth-order Runge-Kutta method. The paper provides a description of the mathematical model adopted for the simulation. A complete dynamic simulation of a 50 kW gas-turbine plant is performed, starting from steady-state operation. Both variable and fixed rotational velocity are considered. The program has been tested both in a steady-state off-design simulation and in a fully dynamic simulation. In all tests the code performed properly, reproducing with good accuracy the behaviour of the real gas turbine. (C) 2007 Elsevier Ltd. All rights reserved.

关键词： dynamic modelling dynamic simulation object-oriented simulation

来源：评论

学校读者我要写书评

暂无评论

Simulation of Multi-agent Manufacturing Systems using Agent-based modelling Platforms

Simulation of Multi-agent Manufacturing Systems using Agent-...

引用

9th IEEE International conference on Industrial Informatics (INDIN)

作者： Barbosa, Jose Leitao, Paulo Polytech Inst Braganca P-5301857 Braganca Portugal

ISBN: (纸本)9781457704345

Multi-agent systems (MAS) are driving the way to design and engineer control solutions that exhibit flexibility, adaptation and reconfigurability, which are important advantages over traditional centralized systems. The understanding, design and testing of such distributed agent-based approaches, and particularly those exhibiting self-* properties, are usually a hard task. Simulation assumes a crucial role to analyse the behaviour of MAS solutions during the design phase and before its deployment into the real operation. Particularly, Agent-Based modelling (ABM) tools are well suited to simulate MAS systems that exhibit complex phenomena, like emergent behaviour and self-organization. This paper discusses the simulation of agent-based manufacturing systems and introduces the advantages of using ABM tools. The NetLogo platform is used to illustrate the benefits of such tools in the manufacturing world on the specification of a MAS system for a washing machine production line.

关键词： ABM tools Analytical models Computational modeling Control systems MAS solutions Manufacturing mathematical model NetLogo platform Production Solid modeling agent-based modelling platforms design phase distributed agent-based approaches manufacturing systems multi-agent systems multiagent manufacturing systems production engineering computing washing machine production line washing machines

来源：评论

学校读者我要写书评

暂无评论

Using neuro-genetic methods for modelling heterogeneous interacting agents

Using neuro-genetic methods for modelling heterogeneous inte...

引用

Decision and Simulation in engineering and Management Science - International conference on modelling and Simulation, ICMS'04

作者： Georgescu, V. Faculty of Economics University of Craiova 01100 Craiova Romania

ISBN: (纸本)8468878677

Multi-agent modelling is a relatively new research area intending to build a more realistic theory of financial markets, which are viewed as complex evolutionary systems. Instead of assuming market efficiency or rational expectations of the market participants, as it is done in the standard equilibrium theory of financial markets, multi-agent models typically incorporate theories of human behaviour that tolerate bounded rationality, several kind of interactions and imperfect information. Such an approach is more likely to reflect the conditions of real-world financial markets. Neural networks, genetic algorithms or hybrid approaches are typically used when modelling heterogeneous interacting agents. The aim of this paper is to evaluate the recent developments in this area and to point out the explanatory role and the predictive power of multi-agent models.

关键词： Multi agent systems

来源：评论

学校读者我要写书评

暂无评论

Explainability in human-Robot Teaming 25

Explainability in Human-Robot Teaming

引用

25th KES International conference on Knowledge-Based and Intelligent Information & engineering Systems (KES)

作者： Dehkordi, Maryam Banitalebi Mansy, Reda Zaraki, Abolfazl Singh, Arpit Setchi, Rossitza Cardiff Univ Res Ctr AI Robot & Human Machine Syst IROHMS Cardiff CF24 3AA Wales

In human-robot teaming, one of the crucial keys for the team's success is that the robot and human teammates can collaborate accordingly in a coordinated manner. Each teammate should be aware of what the other teammate is going to perform and likely to need. In this context, a robot is expected to understand human teammate intention and performance and explain its actions and decisions and its rationale to its teammate In addition, the capability to model the expectation of a human teammate empowers the robot to collaborate with human understandably and expectedly, leading to effective teaming. Through forming mental modelling, the robot can understand the impact of its own behaviour on the mental model of the human. In addition, the desirable traits in human-robot teaming, including fluent behaviour, adaptability, trust-building, effective communication, and explainability, can be achieved through mental modelling. In this work, we introduce a scenario for human-robot teaming considering all the five desirable traits in teaming with the main focus on explainability and effective communication. Using a general model reconciliation, the expectation of the human teammate of the robot can be modelled, and the explanation can be generated. In a considered scenario including Care-O-bot 4 service robot and a human teammate, we assume that the robot detects the human's current task (analysing his body gesture) and predicts his following action and his expectation from the robot. In a reciprocal interdependence task, the robot coordinates his behaviour and acts accordingly by picking up the relevant tool. Through explanation and communication robot further offers the outcome of his decision to the human teammate and adapts its action by handing the tool to the human upon his desire. (C) 2021 The Authors. Published by Elsevier B.V.

关键词： human-robot teaming mental model explanation expectation trust

来源：评论

学校读者我要写书评

暂无评论

Formal Requirements and Constraints modelling in FORM-L for the engineering of Complex Socio-Technical Systems 27

Formal Requirements and Constraints Modelling in FORM-L for ...

引用

IEEE 27th International Requirements engineering conference (REW)

作者： Thuy Nguyen EDF R&D 6 Quai Watier Chatou France

ISBN: (纸本)9781728151656

Socio-technical systems combine behaviour and actions from human operators, physical processes (e.g., thermodynamic or electromagnetism), computing and data communication. One often uses expression "cyber-physical system", or "systems of systems" in the case of systems composed of socio-technical systems of their own that each have different stakeholders, owners and lifecycles, but that must cooperate in order to achieve what none can achieve independently. Complex systems are systems that require the cooperation and coordination of multiple individuals, multiple teams, multiple engineering disciplines and multiple stakeholders to be fully understood in all necessary aspects. This coordination must be ensured all along the lifetime of the system, from scoping studies that aim at determining the nature of the system needed, to deconstruction. For systems such as power plants or passenger aircrafts, this lifetime may cover several decades, during which the system needs to be operated, maintained, retrofitted and upgraded, by multiple successive generations. EDF has developed a FOrmal Requirements modelling Language (FORM-L) to help address this issue for what concerns dynamic phenomena. This paper provides a brief introduction to FORM-L and its underlying methodology, illustrated with short examples.

关键词： Model-Based Systems engineering Requirements engineering Formal Requirements modelling Simulation Formal Analysis Verification & Validation Socio-Technical Syystems Systems of Systems Cyber-Physical Systems Complex systems Justification Frameworks

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：