Paper Title:
Difference and Application of Matrix Displacement Method and Finite Element Method in the Truss Structure Analysis
  Abstract

This article analyses the theories of two methods of matrix displacement and finite element, and the application of calculation in the actual structure. Then it explores the subtle differences between them: Matrix displacement method can only be used for analysis with known unit nodes force-unit nodes of the relationship between the displacement of the truss structure, and not the continuous body structure. The major differences between both are the establishment of the basic principle and solution of the emphasis. Establishing total stiffness matrix according to the geometric property of the structure and then forming integral force vector via loading conditions when matrix displacement method is used to solve the unit fixed-end force. It’s necessary to stack fixed end force; While finite element method mainly bases on the known load and the material nature of structure after structure discretization. Node force or node stress is directly got by the derivation of displacement, but the fixed end force is lost, which dropping the accuracy of the stress. To solve plane frame structure and get structural internal force, the distinguish is checked on the example.

  Info
Periodical
Chapter
Chapter 1: The Basic of Mechanics and Research Methods
Edited by
Huixuan Zhang, Ye Han, Fuxiao Chen and Jiuba Wen
Pages
112-117
DOI
10.4028/www.scientific.net/AMM.117-119.112
Citation
H. Cheng, X. C. Yan, "Difference and Application of Matrix Displacement Method and Finite Element Method in the Truss Structure Analysis", Applied Mechanics and Materials, Vols. 117-119, pp. 112-117, 2012
Online since
October 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Chang Feng Yuan, Guang Ming Yu, Qian Qian Zhao, Jing Bo Zou, Xiao Ming Guan
Abstract:Underground engineering construction in the city can not avoid bringing about perturbation on the surrounding rock and soil and then endanger...
3606
Authors: Hua Gu, Gen Hua Yan
Abstract:During electricity generation in the power station, the dynamic pulsating loads bring about vibration on penstock and expansion joint...
2892
Authors: Lu Ping Yi, Jing Ji
Chapter 3: Mechanics Engineering and Applied Mechanics
Abstract:Research on the mechanical properties of variable diameter Independent pile under the combined action of wind, wave and flow is carried out....
861