共 6 条
EXACT STATIC AND DYNAMIC STIFFNESS MATRICES FOR GENERAL VARIABLE CROSS-SECTION MEMBERS
被引:44
作者:
EISENBERGER, M
机构:
[1] Department of Civil Engineering, Carnegie Mellon University, Pittsburgh, PA
关键词:
D O I:
10.2514/3.25173
中图分类号:
V [航空、航天];
学科分类号:
08 ;
0825 ;
摘要:
This paper concerns the formulation of a new finite-element method for the solution of beams with variable cross section. Using only one element, it is possible to derive the exact static and dynamic stiffness matrices (up to the accuracy of the computer) for any polynomial variation of axial, torsional, and bending stiffnesses along the beam. Examples are given for the accuracy and efficiency of the method. © 1990 American Institute of Aeronautics and Astronautics, Inc., All rights reserved.
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页码:1105 / 1109
页数:5
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