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A squirrel cage vibration plate coupled particle bed experimental device and experimental method

An experimental device and vibrating plate technology, which is applied in vibration testing, measuring devices, testing of machines/structural components, etc., can solve problems such as blanks in mechanism analysis, achieve high deformation recognition sensitivity, reduce experimental errors, and mature testing technology.

Active Publication Date: 2021-08-17
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the mechanism analysis of the dynamic effective mass and nonlinear dynamic behavior of the particle-plate coupling system is still blank at present, so it is particularly important for the present invention to propose a test device and method for a vibrating plate coupling particle bed

Method used

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  • A squirrel cage vibration plate coupled particle bed experimental device and experimental method
  • A squirrel cage vibration plate coupled particle bed experimental device and experimental method
  • A squirrel cage vibration plate coupled particle bed experimental device and experimental method

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] Such as Figure 1 to Figure 3 As shown, a squirrel-cage vibrating plate coupling particle bed experimental device includes an outer drum 1, a vibrator 5, a vibrating plate 2, a squirrel cage 10, an exciting rod 4, a force sensor 3, a strain gauge 9, and a particle bed 8. Lock nut 7; the outer drum 1 and the vibrator 5 are tightly connected to the workbench 11 through bolts, the vibrator 5 is located in the inner cavity of the outer drum 1 and the axial direction of the two coincides, so The outer side of the vibrator 5 is coaxially equipped with a squirrel cage 10, and the squirrel cage 10 is located in the inner cavity of the outer drum 1. One end of the squirrel cage 10 is fixed on the workbench 11 through the positioning notch 6 to prevent the vibration of the vibrator 5. The lower squirrel cage 10 moves, and the other end is connec...

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Abstract

A squirrel-cage vibrating plate coupling particle bed experimental device and experimental method, including an outer drum, a vibrator, and an exciting rod; the outer drum and the vibrator are fastened to a workbench through bolts, and the exciter A squirrel cage is set coaxially outside the vibrator. One end of the squirrel cage is fixed to the workbench through a positioning notch, and the other end is connected to the vibrating plate. The upper surface of the vibrating plate is coupled with a particle bed. One end of the vibrating rod is connected to the vibrator , the other end is connected to the vibrating plate, a force sensor is installed on the excitation rod, the force sensor is connected to the force collector located outside the outer drum through the first wire, and the arc spokes of the squirrel cage are pasted with strain gauges, The strain gauge is connected with the strain collector located outside the outer drum through the second wire. The squirrel cage structure of the present invention can provide the vibrating plate with less rigidity while ensuring the stability of the axial movement of the vibrating plate, and then generate the vibration amplitude that meets the research requirements, and satisfy the test of the nonlinear dynamic response of the vibrating plate-particle material coupling system need.

Description

technical field [0001] The invention belongs to the technical field of engineering test devices, and in particular relates to a squirrel-cage vibrating plate coupling particle bed experimental device and an experimental method. Background technique [0002] Granular matter is closely connected with people's life. The movement of a single particle in granular matter obeys Newton's law and the law of energy conservation, and the research methods for its various mechanical behaviors are relatively mature. When a large number of particles are stacked together to form a particle bed, the particle bed moves or flows as a whole under the action of an external force, forming a particle flow, which exhibits complex solid-liquid phase transition characteristics. The research on its characteristics and mechanism faces many challenges and has become a recent trend Research hotspots of researchers in related fields. Particle flow phenomena widely exist in human activities and natural di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/02
CPCG01M7/02
Inventor 董金录王延庆陈京贝费洪柱李健
Owner NORTHEASTERN UNIV LIAONING
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