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Flexible structure elastoplasticity sub-collision experimental platform

A technology of collision experiment and experimental platform, applied in the field of collision dynamics, can solve the problem of less observation and recording platform, etc., and achieve the effect of comprehensive research data

Pending Publication Date: 2018-06-01
NO 719 RES INST CHINA SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing collision test platforms are for capturing and analyzing macroscopic collisions, and there are relatively few observation and recording platforms for secondary collision phenomena. To study the mechanism of secondary collisions by means of experiments, a set of reasonable design and accurate data collection is required. experiment platform

Method used

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  • Flexible structure elastoplasticity sub-collision experimental platform
  • Flexible structure elastoplasticity sub-collision experimental platform

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Experimental program
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Embodiment 1

[0024] An elastoplastic sub-collision test platform for a flexible structure, the test platform includes a first test platform for dropping test balls, a second test platform for collisions and a measurement unit for measuring and collecting experimental data generated during the collision process system.

[0025] Wherein, the first experimental platform includes a flat plate 1 , a guide sleeve 2 and a bracket 3 . Flat plate 1 has a horizontal plate-like structure, on which there are through holes with equal distances and equal diameters; the outer diameter of the upper part of the guide sleeve 2 is greater than the outer diameter of the through hole, and the height is greater than the depth of the through hole; the outer diameter of the lower part of the guide sleeve 2 and the diameter of the through hole Matching, it can be inserted into the through hole and the height is less than or equal to the depth of the through hole. The upper and lower inner diameters of the guide sl...

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Abstract

The invention relates to a flexible structure elastoplasticity sub-collision experimental platform, and belongs to the field of collision dynamics. In the experimental platform, the bottom of a support is fixed to a bottom plate, and the top horizontally supports and fixes or clamps four corners of a flat plate. The lower part of a guiding sleeve is inserted into a through hole of the flat plate,and thus a first experimental platform body is formed; the bottom of a bearing vertical column is fixed to the bottom plate, the top supports and fixes two clamping mechanisms, bulges of the clampingmechanisms are located in a groove slideway, and an upper clamping flat plate and a lower clamping flat plate horizontally fix and clamp a sliding plate through bolts, thus a second experimental platform body is formed, and the sliding plate is always located below the flat plate. A laser displacement sensor in a measuring system is fixed to the bottom plate. A collision dynamics mechanism studiedthrough the experimental data obtained from the platform fits more in with engineering practices. By using a through hole in the sliding plate, collision phenomena can be observed at different speeds, and also the defect that an existing experimental device can only measure central collision can be greatly improved; eccentric collision experiments can be conducted, so that ball and plate collision mechanism study data is more comprehensive and reliable.

Description

technical field [0001] The invention relates to a flexible structure elastic-plastic secondary collision experiment platform, in particular to a flexible structure viscous and elastic-plastic secondary collision experiment platform based on a multi-plate composite vibration isolation platform, which belongs to the field of collision dynamics. Background technique [0002] The collision problem between flexible structures is a kind of classic dynamic problem, which widely exists in the field of engineering. Exploring the mechanism of collisions and calculating the dynamic response caused by collisions between flexible bodies is becoming more and more important for improving the stability and controllability of the long-term operation of the structural system and effectively reducing the damage caused by collisions. When Timoshenko studied the collision dynamics of a rigid ball and a flexible beam, he first proved the existence of sub-collisions theoretically. Usually, a coll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/00
CPCG01N19/00
Inventor 王巧李琼玥夏孟龙
Owner NO 719 RES INST CHINA SHIPBUILDING IND
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