Topic
Modeling and simulation
About: Modeling and simulation is a research topic. Over the lifetime, 10273 publications have been published within this topic receiving 111550 citations.
Papers published on a yearly basis
Papers
More filters
01 Jan 1997
TL;DR: In this article, the authors describe the goals, practices, and methodologies of the Siemens Semiconductor Division's Factory Modeling and Simulation team, which is used to implement simulation, capacity analysis, and cost analysis at factories throughout the division, both wafer fabrication and back-end operations.
Abstract: This paper describes the goals, practices, and methodologies of the Siemens Semiconductor Division's Factory Modeling and Simulation team. The team's charter is to implement performance modeling capability (simulation, capacity analysis, and cost analysis) at factories throughout the division, both wafer fabrication and back-end operations. Findings of recent modeling activities are discussed, along with applications of simulation and a hierarchical modeling approach. The authors wish to use articles such as th is to initiate discussions with other organizations using modeling techniques to analyze factory performance.
28 citations
TL;DR: This article implements a projection method based on active sets as well as a barrier method and a Moreau Yosida regularization, and compares these methods by a program that optimizes the discrete version of the given problem.
Abstract: In Neitzel et al. (Strategies for time-dependent PDE control using an integrated modeling and simulation environment. Part one: problems without inequality constraints. Technical Report 408, Matheon, Berlin, 2007) we have shown how time-dependent optimal control for partial differential equations can be realized in a modern high-level modeling and simulation package. In this article we extend our approach to (state) constrained problems. “Pure” state constraints in a function space setting lead to non-regular Lagrange multipliers (if they exist), i.e. the Lagrange multipliers are in general Borel measures. This will be overcome by different regularization techniques. To implement inequality constraints, active set methods and barrier methods are widely in use. We show how these techniques can be realized in a modeling and simulation package. We implement a projection method based on active sets as well as a barrier method and a Moreau Yosida regularization, and compare these methods by a program that optimizes the discrete version of the given problem.
28 citations
TL;DR: In this paper, a modeling method and algorithm for point contact non-smooth multibody system based on the 2D LuGre friction model is presented, and the effectivity of the parameter identification method is verified by a numerical simulating example.
28 citations
TL;DR: In this article, a two-dimensional physical and electrochemical model of a lithium-ion secondary battery is presented, where the transport processes and charge transfer reactions in a five layered single cell consisting of current collectors, electrode layers and separator are described by a system of partial differential equations which is solved with Comsol Multiphysics®, a modeling and simulation tool based on the finite element method.
28 citations
29 Dec 2009
TL;DR: In this article, a detailed heliostat field model was linked to a dynamic receiver model by coupling both simulation tools and a second coupling was established to a tool hosting a control panel of the heliastat field.
Abstract: The start-up of the PS10 power plant in Seville, Spain, in 2007 marked the entrance of solar tower power plants into the commercial state. Questions about the right operational strategy, particularly during unsteady operation states, come to the fore, and therewith the need to carry out transient simulations of entire tower power plants including the heliostat field. Meeting this necessity, the presented simulation approach opens the way to transient full plant simulations of solar tower power plants. A detailed heliostat field model was linked to a dynamic receiver model by coupling both simulation tools. A second coupling was established to a tool hosting a control panel of the heliostat field model. With this simulation approach, a start-up procedure and a tracking stop were simulated delivering different transient behaviors of local absorber temperatures and mass flows.
28 citations