Download or read book Multibody Dynamics Simulation in Network distributed Environments written by Fan-Chung Tseng and published by . This book was released on 2000 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Advanced Methodology for Network distributed Simulation written by Jinzhong Wang and published by . This book was released on 2005 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distributed Simulation Using a Real time Shared Memory Network written by Donald L. Simon and published by . This book was released on 1993 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Distributed Simulation Environment for Multibody Physics written by Jen-Diann Chiou and published by . This book was released on 1998 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Multibody System Dynamics written by Werner Schiehlen and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The German Research Council (DFG) decided 1987 to establish a nationwide five year research project devoted to dynamics of multibody systems. In this project universities and research centers cooperated with the goal to develop a general pur pose multibody system software package. This concept provides the opportunity to use a modular structure of the software, i.e. different multibody formalisms may be combined with different simulation programmes via standardized interfaces. For the DFG project the database RSYST was chosen using standard FORTRAN 77 and an object oriented multibody system datamodel was defined. The project included • research on the fundamentals of the method of multibody systems, • concepts for new formalisms of dynamical analysis, • development of efficient numerical algorithms and • realization of a powerful software package of multibody systems. These goals required an interdisciplinary cooperation between mathematics, compu ter science, mechanics, and control theory. ix X After a rigorous reviewing process the following research institutions participated in the project (under the responsibility of leading scientists): Technical University of Aachen (Prof. G. Sedlacek) Technical University of Darmstadt (Prof. P. Hagedorn) University of Duisburg M. Hiller) (Prof.

Download or read book Proceedings of the ASME Design Engineering Division written by and published by . This book was released on 2003 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distributed Dynamic System Simulation Using a Computer Network written by Paul Arthur Grygier and published by . This book was released on 1988 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the ASME Design Engineering Division 2003 written by and published by . This book was released on 2003 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Multi body Dynamic Modeling of Multi legged Robots written by Abhijit Mahapatra and published by Springer Nature. This book was released on 2020-02-27 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the development of an integrated approach for generating the path and gait of realistic hexapod robotic systems. It discusses in detail locomation with straight-ahead, crab and turning motion capabilities in varying terrains, like sloping surfaces, staircases, and various user-defined rough terrains. It also presents computer simulations and validation using Virtual Prototyping (VP) tools and real-world experiments. The book also explores improving solutions by applying the developed nonlinear, constrained inverse dynamics model of the system formulated as a coupled dynamical problem based on the Newton–Euler (NE) approach and taking into account realistic environmental conditions. The approach is developed on the basis of rigid multi-body modelling and the concept that there is no change in the configuration of the system in the short time span of collisions.

Download or read book Proceedings of the European Simulation Multiconference written by and published by . This book was released on 1996 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Multi layered Scheme for Distributed Simulations on the Cloud Environment written by SHICHAO. GUAN and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Distributed Simulation of Synthetic Environments and Wireless Networks written by and published by . This book was released on 1999 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research is to provide a decision aid that allows engineers, scientists and battle managers to simulate complex situations and facilitate rapid and informed planning. Specifically, we are developing mechanisms to facilitate the decision process in battle management. Often, very large systems may need to be modeled such as an entire combat theater or a large airspace. The problem with large systems is that a single simulation run may take hours to complete. In order to reduce execution time, one can decompose a sequential simulation into a collection of many interacting programs distributed over multiple processors. This approach is called parallel simulation. To ensure correctness, we require that parallel execution generates the same result as a sequential execution. This technology enables off-line decision aid simulations to be transformed into real time decision aids for time critical situations without loss of model accuracy. To build fast, efficient and powerful simulators we need parallel algorithms that: (1) hide computational latencies for image generation in virtual environments, (2) allow effective what if and alternative scenario analysis and decision making in time critical situations, (3) maximize forward progress via background execution, (4) implement interactive visualization techniques that provide insight into parallel simulation execution to prevent potential bottlenecks, and (5) provide for geographically distributed (WAN) environments and exploit the capabilities of high performance interconnections to deliver real time results. To address these issues the development and integration of new mechanisms for interactive parallel discrete event simulations are presented, implemented and evaluated.

Download or read book Computer Supported Cooperative Work in Design III written by Weiming Shen and published by Springer. This book was released on 2007-08-04 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-proceedings of the 10th International Conference on Computer Supported Cooperative Work in Design, CSCWD 2006, held in Nanjing, China in May 2006. Among topics covered are CSCW techniques and methods, collaborative design, collaborative manufacturing and enterprise collaboration, Web services, knowledge management, security and privacy in CSCW systems, workflow management, and e-learning.

Download or read book Modelling Simulating and Emulating Distributed Applications in Swarms of Cyber Physical Systems Deployed in Dynamic Networks written by Bruno Chianca Ferreira and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research field in distributed systems has witnessed a recent growing interest in wireless mobile distributed computing, i.e. distributed algorithms deployed in dynamic networks. Such systems introduce new challenges due to their time-varying topologies, which hinder the performance and safety guarantees of algorithms that are fundamental building blocks of more complex distributed algorithms. The main focus of this work is to establish different ways to study such systems via emulation and simulation and to propose some techniques to deploy applications in dynamic networks. We evaluated different data flow paradigms, such as many-to-many distributed storage, one-many computational offloading, and many-to-many decentralized swarm control and data load-balancing.We adopted the quantitative approach as a cornerstone methodology, using simulation and emulation to collect data for analysis. Even though there are many discrete simulators in the state-of-the-art, there was a gap for emulation tools applied to mobile ad hoc computing. Some important features were missing, such as a full-scale emulated deployment environment where prototypes coexist with off-the-shelf applications and more options for mobility control. This work proposes MACE, a framework that enables the emulation of mobile distributed applications in a virtual environment so that the scenarios and topologies composed by mobile wireless nodes can be easily modified. Since emulation requires that the tests run in wall time, the need for a fast simulator arose. Therefore, we designed, implemented and validated a fluid model that simulates traffic flow in mobile ad hoc networks. With this model, we finally implemented a simulation tool that enables fast algorithm and parameter analysis and can potentially be embedded in constrained nodes for in-flight mission re-evaluation. The fluid model can scale to large topologies with hundreds of nodes and could complete experiments running stress workloads with simulation time shorter than the simulation time horizon. It can also be configured with bounded and unbounded network queues, use mixed mobility models and control laws, and model different applications running in the application layer mixed with synthetic traffic injection. By studying different control laws, we can reduce the probability of enduring network partitions and enhance the traffic balance to reduce the formation of bottlenecks that hinder the application's performance.Our work also encompassed the proposal of some applications related to the domain of UTM, such as optimized edge-assisted offloading algorithms for swarms of UAVs that can be potentially used for UTM Distributed Detect and Avoid systems. Moreover, we also propose a distributed position tracking data layer for very low-level airspace using State Machine Replication and could achieve low end-to-end latencies even with a high number of replicas.

Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Oata Analysis and Synthesis (CINOAS) * at Purdue. University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 33 (thesis year 1988) a total of 13,273 theses titles from 23 Canadian and 1 85 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 33 reports theses submitted in 1988, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.

Download or read book Web Authentication using Third Parties in Untrusted Environments written by Anna Vapen and published by Linköping University Electronic Press. This book was released on 2016-08-22 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the increasing personalization of the Web, many websites allow users to create their own personal accounts. This has resulted in Web users often having many accounts on different websites, to which they need to authenticate in order to gain access. Unfortunately, there are several security problems connected to the use and re-use of passwords, the most prevalent authentication method currently in use, including eavesdropping and replay attacks. Several alternative methods have been proposed to address these shortcomings, including the use of hardware authentication devices. However, these more secure authentication methods are often not adapted for mobile Web users who use different devices in different places and in untrusted environments, such as public Wi-Fi networks, to access their accounts. We have designed a method for comparing, evaluating and designing authentication solutions suitable for mobile users and untrusted environments. Our method leverages the fact that mobile users often bring their own cell phones, and also takes into account different levels of security adapted for different services on the Web. Another important trend in the authentication landscape is that an increasing number of websites use third-party authentication. This is a solution where users have an account on a single system, the identity provider, and this one account can then be used with multiple other websites. In addition to requiring fewer passwords, these services can also in some cases implement authentication with higher security than passwords can provide. How websites select their third-party identity providers has privacy and security implications for end users. To better understand the security and privacy risks with these services, we present a data collection methodology that we have used to identify and capture third-party authentication usage on the Web. We have also characterized the third-party authentication landscape based on our collected data, outlining which types of third-parties are used by which types of sites, and how usage differs across the world. Using a combination of large-scale crawling, longitudinal manual testing, and in-depth login tests, our characterization and analysis has also allowed us to discover interesting structural properties of the landscape, differences in the cross-site relationships, and how the use of third-party authentication is changing over time. Finally, we have also outlined what information is shared between websites in third-party authentication, dened risk classes based on shared data, and proled privacy leakage risks associated with websites and their identity providers sharing data with each other. Our ndings show how websites can strengthen the privacy of their users based on how these websites select and combine their third-parties and the data they allow to be shared.