Transient finite element computations on a variable transputer system

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by
National Aeronautics and Space Administration, National Technical Information Service, distributor , [Washington, DC, Springfield, Va
Computer prog
StatementPatrick J. Smolinski and Ireneusz Lapczyk.
SeriesNASA contractor report -- 189060., NASA contractor report -- NASA CR-189060.
ContributionsLapczyk, Ireneusz., United States. National Aeronautics and Space Administration.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL15397398M

Transient Finite Element Computations on a Variable Transputer System Patrick J. Smolinski and Ireneusz Lapczyk University of Pittsburgh Pittsburgh, Pennsylvania January t) Prepared for Lewis Research Center Under Grant NAG (NASA-CR) COMPUTATIONS ON A (Pittsburoh Univ.) TRANSIENT VAPIA_LE 90 p FINITE ELFMENT TRANSPUT_R SYSTEM.

Get this from a library. Transient finite element computations on a variable transputer system. [Patrick Smolinski; Ireneusz Lapczyk; United States.

National Aeronautics and Space Administration.]. Transient Finite Element Computations on the Transputer System Patrick J. Smolinski University of Pittsburgh Pittsburgh, Pennsylvania February Prepared for Lewis Research Center Under Grant NAG NationalAeronauticsand SpaceAdministration (NASA-CR_I_9) TRANSIENT COMPUTATIQNS NN THE TRANSPUTER Report (#ittsburgh Univ.) 37 FINITE.

Abstract. A parallel program to analyze transient finite element problems was written and implemented on a system of transputer processors.

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The program uses the explicit time integration algorithm which eliminates the need for equation solving, making it more suitable for parallel : Patrick J. Smolinski and Ireneusz Lapczyk. Basically, the convergent results for the steady temperature field are retained by less than 5 iterative steps.

Clearly, the steady solution from the finite element system Eq. is identical to that obtained from the transient finite element system Eq. for sufficiently large time. Download: Download high-res image (KB)Cited by:   The field variables are interpolated by separate functions that have common values at nodes of the element system.

Individual equations of the finite elements are assembled into a large system of equations, from which the unknown field variable values (nodal temperatures) are obtained as solutions. It achieves fast computation of transient.

An algorithm which allows different nodes of the finite element mesh to be integrated with different time steps is presented for second order finite e. The extended finite element method (XFEM) is a numerical technique based on the generalized finite element method (GFEM) and the partition of unity method (PUM).

It extends the classical finite element method by enriching the solution space for solutions to differential equations with discontinuous functions.

This computation may become very large when considering transient dynamic non-linear finite element analysis of reinforced concrete structures. The intricacy of the problem pushes the present computers to the limit of their capabilities even when only one single run of the program is required, making the analyst wait for many hours.

This paper discusses a concurrent finite element formulation for linear and nonlinear transient analysis using an explicit time integration scheme. The formulation has been developed for execution. PDEs and Finite Elements. Version 10 extends its numerical differential equation-solving capabilities to include the finite element method.

Given a PDE, a domain, and boundary conditions, the finite element solution process — including grid and element generation — is fully automated. Stationary and transient solutions to a single PDE or a. The purpose of this paper is to analyze the time-dependent reliability of harmonic drive.,The transient finite element analysis (FEA) of harmonic drive is established to calculate the stress under different loads.

Combined with the residual strength model and random variables, the time-dependent reliability model of harmonic drive is deduced by the stochastic perturbation method and.

a computation example of a simple lumped mass spring system subjected to impact Programming transient explicit finite element analysis with Matlab 65 The initiation of the time march starts from time step 0, with information i.e. a lumped mass spring system. Wolfram Universal Deployment System. Instant deployment across cloud, desktop, mobile, and more.

Finite Element Method User Guide. Solving Partial Differential Equations with Finite Elements. Reaction — FEM-NL-Transient-1D-Single-Reaction B.H.V. Topping's research works with 1, citations and 2, reads, including: CIVIL-COMP NDSolve provides a high-level, one-step interface for solving partial differential equations with the finite element method.

However, you may want to control the steps of the solution process with more detail. The NDSolve`FEM` package provides a lower-level interface that gives extensive control for each part of the solution process.

To use the finite element functions, the package needs to be. a CFD practitioner. Last but not least, simultaneous computation of instantaneous density, velocity, pressure, temperature, and concentration fields is feasible.

Clearly, no experimental technique can capture the evolution of all fl ow variables throughout the domain. However, experiments are still required to determine the values of input. finite element computer program to carry out analyses for the theory presented in previous chapters.

The computer program discussed here may be used to solve any one- two- or three-dimensional linear steady-state or transient problem. The program may also be used to solve non-linear problems as will be discussed in Volume 2. *Finite Element Analysis with Mathematica and Matlab Computations and Practical Applications is an innovative, hands-on and practical introduction to the Finite Element Method that provides a powerful tool for learning this essential analytic method.

Element equations in local coordinate system. Finite Element Computations. Week 3: Part 3. Structural Elements in One dimensional FEM: Bar Element with Computer Programming: Variational statement from governing differential equation; Finite element equation, Element matrices, Assembly, Solution, Post-processing; Numerical example of conical bar under self-weight and axial point Element with Computer Programming: Orthogonal matrix, Element.

This book intend to supply readers with some MATLAB codes for finite element analysis of solids and structures. After a short introduction to MATLAB, the book illustrates the finite element implementation of some problems by simple scripts and functions.

The following problems are discussed: • Discrete systems, such as springs and bars. The finite element incremental heat flow equili- brium equations are derived by substituting the inter- polations of eqs. (5) and (6) into eqs. (2) and (3). As usual, only a single finite element is considered, because the equilibrium equations of the complete system of finite elements.

Abstract: The knowledge of the potential and field distribution in the winding system of a transformer, during transient excitation is vital to its construction.

In this paper the problem of modeling large numbers of winding turns is solved with detailed finite element models. Frequency-dependent phenomena such as skin and proximity effects in the conductors, tan /spl delta/ losses in the.

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An object-oriented application framework for finite element analysis in structural engineering. Finite Element Analysis of Transient Heat Flow be accurate, but would require ten times as much computation as a s time step. A time step of 1 s would finite element analysis is in choosing element sizes and time steps that accurately provide the necessary.

Introduction to the Explicit Finite Element Method for Nonlinear Transient Dynamics is an ideal book for both engineers who require more theoretical discussions and for theoreticians searching for interesting and challenging research topics.

The book also serves as an excellent resource for courses on applied mathematics, applied mechanics, and.

Finite Element Analysis with Mathematica and Matlab Computations and Practical Applications is an innovative, hands-on and practical introduction to the Finite Element Method that provides a powerful tool for learning this essential analytic method. ME Finite Element Analysis in Thermofluids Dr.

Cüneyt Sert Flow Equations in Cartesian and Cylindrical Coordinate Systems Conservation of mass, momentum and energy given in equations (), () and () (or alternatively given in (), () and () for incompressible flows) are valid for any coordinate system.

ANSYS Maxwell is the industry-leading electromagnetic field simulation software for the design and analysis of electric motors, actuators, sensors, transformers and other electromagnetic and electromechanical devices.

I’ll diverge from Gabriel Perlin on this one. FE analysis are (pretty much infinitely) more precise, but take more time to set up. Sometimes, your problem doesn’t justify this time spent.

Description Transient finite element computations on a variable transputer system FB2

If the problem is simple enough or if you just want a quali. Download Finite Element Analysis For Satellite Structures in PDF and EPUB Formats for free. Finite Element Analysis For Satellite Structures Book also available for Read Online, mobi, docx and mobile and kindle reading.This is done to economize on the computer memory storage and computation time.

The system design parameters used are: (a) bearing spacing, (b) bearing stiffness, (c) location of an external damper, and (d) the workpiece diameter. The optimum design variables .Lumped system analysis assumes a uniform temperature distribution throughout the body, which implies that the conduction heat resistance is zero.

Thus, the lumped system analysis is exact when Bi = 0. It is generally accepted that the lumped system analysis is applicable if Bi t t p t RC hA VC.