'Natural', 'kinematic' and 'elastic' displacements of underconstrained structures

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作者：
Israel Inst of Technology, Haifa, Israel [1 ]
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来源：
Int J Solids Struct | / 8卷 / 911-930期
关键词：
Degrees of freedom (mechanics) - Elasticity - Kinetic theory - Prestressing - Stability - Vibrations (mechanical);
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摘要：
Analysis of pin-bars assemblies in which the number of degrees of freedom is greater than equilibrium matrix rank (underconstrained structures) is carried out. Some approaches to the linear analysis of statics, stability and vibrations are presented. It is shown that the main feature of underconstrained structures is a dominant role of initial equilibrium state of prestressing.
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