An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis

An improved finite difference type numerical method to solve partial differential equations for one-dimensional (1-D) structure is proposed. This numerical scheme is a kind of a single-step, second-order accurate and implicit method. The stability, consistency, and convergence are examined analytica...

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Main Authors: Sung-Hoon Kim, Youn-sik Park
Format: Article
Language:English
Published: Wiley 1994-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.3233/SAV-1994-1607
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author Sung-Hoon Kim
Youn-sik Park
author_facet Sung-Hoon Kim
Youn-sik Park
author_sort Sung-Hoon Kim
collection DOAJ
description An improved finite difference type numerical method to solve partial differential equations for one-dimensional (1-D) structure is proposed. This numerical scheme is a kind of a single-step, second-order accurate and implicit method. The stability, consistency, and convergence are examined analytically with a second-order hyperbolic partial differential equation. Since the proposed numerical scheme automatically satisfies the natural boundary conditions and at the same time, all the partial differential terms at boundary points are directly interpretable to their physical meanings, the proposed numerical scheme has merits in computing 1-D structural dynamic motion over the existing finite difference numeric methods. Using a numerical example, the suggested method was proven to be more accurate and effective than the well-known central difference method. The only limitation of this method is that it is applicable to only 1-D structure.
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series Shock and Vibration
spelling doaj-art-8997d4977eb44277ae93b95888c224a32025-02-03T05:58:11ZengWileyShock and Vibration1070-96221875-92031994-01-011656958310.3233/SAV-1994-1607An Improved Finite Difference Type Numerical Method for Structural Dynamic AnalysisSung-Hoon Kim0Youn-sik Park1Center for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Taejon 305-707, KoreaCenter for Noise and Vibration Control (NOVIC), Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Science Town, Taejon 305-707, KoreaAn improved finite difference type numerical method to solve partial differential equations for one-dimensional (1-D) structure is proposed. This numerical scheme is a kind of a single-step, second-order accurate and implicit method. The stability, consistency, and convergence are examined analytically with a second-order hyperbolic partial differential equation. Since the proposed numerical scheme automatically satisfies the natural boundary conditions and at the same time, all the partial differential terms at boundary points are directly interpretable to their physical meanings, the proposed numerical scheme has merits in computing 1-D structural dynamic motion over the existing finite difference numeric methods. Using a numerical example, the suggested method was proven to be more accurate and effective than the well-known central difference method. The only limitation of this method is that it is applicable to only 1-D structure.http://dx.doi.org/10.3233/SAV-1994-1607
spellingShingle Sung-Hoon Kim
Youn-sik Park
An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis
Shock and Vibration
title An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis
title_full An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis
title_fullStr An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis
title_full_unstemmed An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis
title_short An Improved Finite Difference Type Numerical Method for Structural Dynamic Analysis
title_sort improved finite difference type numerical method for structural dynamic analysis
url http://dx.doi.org/10.3233/SAV-1994-1607
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