Structure mechanics combined experimental device

An experimental device, a technology of structural mechanics, applied in teaching models, educational appliances, instruments, etc., can solve the problems of the absence of hinge joints and the increase of bending moments, and achieve easy management, reduce influence, and enrich experimental teaching methods. Effect

Inactive Publication Date: 2008-11-12
YANTAI UNIV +1
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Problems solved by technology

[0004] 2. The ideal hinge point can only bear the axial force but not the bending moment, but the ideal hinge point does not exist. Due to the existence of friction and other reasons in actual engineering, the hinge point can not only bear a certain bending moment, but also As the axial force increases, the bending moment it can withstand also increases.

Method used

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  • Structure mechanics combined experimental device
  • Structure mechanics combined experimental device
  • Structure mechanics combined experimental device

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Embodiment Construction

[0025] The present invention is implemented like this:

[0026] 1. The node part is in figure 2 , image 3 , Figure 5 , Figure 6 Among the joints shown, the joint is composed of upper and lower joint plates, and the adjusting bolts (12-1, 5) of the bar (12) are clamped by the arc surfaces of the upper and lower plates, and the upper and lower joints The plates are connected by bolts, the lower plate is a threaded hole, and the upper plate is a through hole. figure 2 is the general hinge point, image 3 , Figure 5 is the general fixation point, Figure 6 is the hinge point of the support. The difference between the hinge point and the consolidation point is that the upper and lower walls of the hinge point are both hinge point disks, and at least one of the upper and lower walls of the consolidation point is a consolidation point disk. The difference between the general joint and the support joint is that the support joint can be hinged with the adjustable support ...

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Abstract

The invention relates to the field of experiment-teaching equipment of 'Structural Mechanics' in colleges and universities; the products of the invention are mainly applied to the experiment teaching of rigid frames, trusses and combined structures in beam structures; the invention is characterized in that: a node plate adopts a split structure, the trusses are arranged between two node plates, a weak connection with a particular shape is arranged on an articulated node plate, and a relatively ideal articulating node can be obtained by utilizing the mechanical property that the weak connection can transmit a relatively large axial force but only can transmit a very small bending moment. By choosing a reasonable connecting way between a rigid node plate and the trusses, the influences on the testing result made by the size effect of the rigid node plate is reduced and a relatively ideal rigid node can be obtained. The node property and the support property can be transferred conveniently. All the tests can realize electrical testing by using the computer data collecting and analyzing. The application of the computer data collecting and analyzing system not only facilitate data collection, but also enriches the experiment-teaching means, which is beneficial for carrying out open experiment-teaching.

Description

technical field [0001] The invention relates to the field of experimental teaching equipment for "Structural Mechanics" in colleges and universities. The product is mainly used in the experimental teaching of rigid frames, trusses and combined structures in bar structures. Background technique [0002] The main task of structural mechanics is to study the internal force and deformation of the structure under the action of external force and other external factors, the strength, stiffness, stability and dynamic response of the structure, and the composition law of the structure according to the principles of mechanics. The main research object of "Structural Mechanics" in colleges and universities is the rod structure, which is composed of rods, nodes, supports and so on. In theoretical analysis, the rod is simplified as an axis with a certain rigidity, which can bear bending moment, axial force and shear force; the joints and supports are simplified as connection points with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/00
Inventor 吴江龙袁苗苗褚福运董锟
Owner YANTAI UNIV
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