2024-06-17T16:14:25Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00030685
2023-01-16T04:24:16Z
320:2524:2525:2529
A BASIC STUDY ON A HYBRID STRUCTURE CONSISTING OF CABLES AND RIGID STRUCTURES
WU, Minger
101879
HANGAI, Yasuhiko
101880
OHMORI, Hiroshi
101881
hybrid structure
tension structure
cable structure
rigid structure
generalized inverse
equilibrated stress
pre-stress introduction
stability
static analysis
vibration analysis
2000-03-31
In the paper, a new type of hybrid structure consisting of cables and rigid structures is proposed. In the hybrid structure, cables are used as tensile members, rigid structures are used as compressive members. Rigid structures in the hybrid structure may have arbitrary shapes, such as lines, circles, cubes, and so on. Initial stress is introduced in the system to provide enough geometric stiffness, so that the proposed hybrid structure is named "Hybrid Structure Stabilized by Tension". In the first step of the paper, kinematic relations and equilibrium relations are formulated for cables and rigid structures and then for the hybrid structure. The kinematic equations and the equilibrium equations are called basic equations. In the basic equations, the degrees of freedom of rigid structures are not considered by using the displacements of the centers of gravity as usual, but by using the displacements of the nodes on their surfaces which are connected with cable members. To this end, generalized inverse is effectively used in the paper. By using these basic relations, the following items about the hybrid structure are studied.<br/>(1) Classification of stable and unstable hybrid structures<br/>(2) Introduction of pre-stress for stability and initial stiffness<br/>(3) Stress and displacement analysis under static loads<br/>(4) Vibration analysis<br/>(5) In order to examine the validity of the theoretical analyses, experiments on a hybrid structure model are done as follows: i) the introduction of pre-stress, ii) static loading experiment.
departmental bulletin paper
School of Engineering, Nagoya University
2000-03-31
Memoirs of the School of Engineering, Nagoya University
2
51
160
194
0919-0805
eng