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Equivalent mechanical parameter measurement system for granular media

A granular medium and mechanical parameter technology, applied in the field of mechanical parameter measurement system, can solve the problems of high experimental cost and complex structure, and achieve the effect of reducing design and manufacturing costs and simple structure

Inactive Publication Date: 2012-02-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problems of complex structure and high experimental cost existing in the existing granular medium equivalent kinetic parameter measurement device, the present invention provides a granular medium equivalent mechanical parameter measurement system, which has a simple structure, adjustable volume, and can meet the requirements of scaling. Experimental requirements

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  • Equivalent mechanical parameter measurement system for granular media
  • Equivalent mechanical parameter measurement system for granular media
  • Equivalent mechanical parameter measurement system for granular media

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Embodiment Construction

[0031] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] figure 2 An example of the system for measuring equivalent kinetic parameters of granular media of the present invention is shown, in which the rigid open container 1 is shown in a cross-sectional view. The cavity of the rigid open container 1 is constituted by side walls 6 and a bottom plate 10 . The side wall 6 is a closed structure surrounded by four rectangular plates (combined image 3 ). One of the rectangular plates is perpendicular to two of the other rectangular plates, or two of the rectangular plates are parallel, and the two parallel rectangular plates are perpendicular to the other two parallel rectangular plates, so that the The shape of the cavity is a cuboid. figure 2 The specific geometric dimensions of the rigid open container 1 in the shown embodiment are: the thickness of the rigid side wall 6 is 10mm, and th...

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Abstract

The invention provides an equivalent mechanical parameter measurement system, which comprises a rigid open container containing granular media and a volume regulating plate. A cavity of the rigid open container is rectangular, a pressure sensor and a displacement sensor are arranged on the lateral wall of the cavity, a granular medium pressure transmission component is arranged in the cavity movably, one side of the granular medium pressure transmission component contacts and presses the pressure sensor and the displacement sensor, the space on the other side of the granular medium pressure transmission component part in the cavity is used for containing granular media, and the volume regulating plate is used for regulating volume of the space for containing the granular media. The equivalent mechanical parameter measurement system is simple in structure, low in cost and capable of applying to measurement of equivalent mechanical parameters of the granular media widely.

Description

technical field [0001] The invention belongs to a mechanical parameter measurement system, in particular to a system for measuring the mechanical parameters of granular media required by different particle sizes and different ratios. Background technique [0002] Granular media (or bulk) widely exist in production and life. When designing granular media containers, it is necessary to understand the mechanical properties of granular media. For example, when designing a barn, it is necessary to calculate and analyze the grain as a continuous mechanical medium to evaluate its pressure on the barn wall. The use of experiments to measure the equivalent mechanical parameters of bulk media is a key step to solve the above problems. [0003] There are many methods for measuring the equivalent mechanical parameters of granular media, mainly including dynamic measurement and static measurement. Dynamic measurement is mainly to deduce material parameters by measuring the dynamic resp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/00
Inventor 马少鹏刘程林马沁巍蔡小兵苏煜王洪涛孙立斌
Owner BEIJING INSTITUTE OF TECHNOLOGYGY