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Spatial structure integral model test cable force self-balanced loading control method

An overall model and space structure technology, applied in the testing of machines/structural components, electrical program control, program control in sequence/logic controllers, etc., can solve problems such as difficulty in model loading, and achieve strong adaptability and simple operation Effect

Inactive Publication Date: 2009-11-11
TSINGHUA UNIV
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Problems solved by technology

[0005] The present invention proposes a cable force self-balancing loading control method for the overall model of a space structure, which solves the problem of difficult loading of the overall model of a large-span structure by establishing a "chassis beam-cable-model" integrated self-balancing loading system; Computer control technology implements dual control of "displacement loading-internal force fine-tuning" on the cable, which can accurately and conveniently achieve the predetermined graded loading target for the test model

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  • Spatial structure integral model test cable force self-balanced loading control method
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  • Spatial structure integral model test cable force self-balanced loading control method

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Embodiment Construction

[0044] A self-balancing loading control method of cable force for the overall model test of a space structure, based on an integrated self-balancing loading system composed of chassis beams, cables and test models, in a data input module, loading simulation analysis module, displacement loading In the loading control system composed of the control module and the internal force fine-tuning control module, it is realized according to specific steps. Among them, the cable displacement loading device adopts a commercially available electric hoist.

[0045] Attached below Figure 1~3 The control method of cable force self-balancing loading for the overall model test of the space structure is described in detail.

[0046] Such as figure 1 As shown, the integrated self-balancing loading system is composed of the test model 1, the cable 2 and the chassis beam 3, and includes a cable displacement loading device 4 capable of controlling the shortening of the cable, and a strain gauge ...

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Abstract

The invention relates to a spatial structure integral model test cable force self-balanced loading control method which belongs to the technical field of structural engineering. The method is based on an integral self-balanced loading system formed by a test model, a bracing cable, a base plate girder, a bracing cable displacement loading device and a strain gauge force plate and is realized in a loading control system formed by a data input module, a loading simulation analysis module, a displacement loading control module and an internal force fine-adjustment control module according to specific steps. The method is high in adaptability and simple in operation, is suitable for the large-sized model test loading and can accurately realize the predetermined step loading target through the dual control technologies of displacement loading and internal force fine-adjustment.

Description

technical field [0001] The invention relates to a cable force self-balancing loading control method for an overall model test of a space structure, and belongs to the technical field of structural engineering. technical background [0002] In recent years, the engineering construction projects of new space structures have developed rapidly in our country, but the research work on its design theory has lagged behind seriously, which has brought certain obstacles to its promotion and application. For this reason, structural designers often require the overall model test of the structure. Through the test to study its instability and failure mechanism, find weak parts, examine its stiffness change and its ultimate bearing capacity, the rationality of the structural design can be verified, and for the structure Design provides a basis for the study of new structural forms and the development of new structural theories. [0003] When people determine the proportion of the overal...

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Application Information

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IPC IPC(8): G01M19/00G01N3/00G05B19/04G01M99/00
Inventor 郭彦林王小安窦超
Owner TSINGHUA UNIV
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