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Multi-drop-hammer millisecond delay loading experiment system

A loading experiment, millisecond-level technology, applied in measurement devices, impact testing, testing of machine/structural components, etc., can solve problems that do not conform to the nature of mechanics

Inactive Publication Date: 2015-02-11
HOHAI UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method uses a single drop hammer impact, which does not conform to the mechanical nature of environmental loads, and can only be used as a generalized study

Method used

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  • Multi-drop-hammer millisecond delay loading experiment system
  • Multi-drop-hammer millisecond delay loading experiment system
  • Multi-drop-hammer millisecond delay loading experiment system

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Experimental program
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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the technical scheme of invention is described in detail:

[0019] Such as figure 1 The multi-drop hammer millisecond-level delayed loading experiment system shown includes an electromagnet lifting guide wheel box, a single-chip microcomputer, a hoist, 5 drop hammer devices, and drop hammer lifting guide wheel A and drop weight lifting guide wheel B arranged at the same height. The drop weight lifting guide wheel A and the dropping weight lifting guide wheel B are fixedly connected with the tripod through the connecting shaft at the center thereof. The two ends of the rope pass through the guide rails of the drop weight lifting guide wheel A and the drop weight lifting guide wheel B and are fixedly connected with the left and right side walls of the electromagnet lifting guide wheel box respectively. Drop hammer lifting guide wheel A is a double guide wheel.

[0020] Such as figure 2 The drop hammer device shown: the h...

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Abstract

The invention discloses a multi-drop-hammer millisecond delay loading experiment system, and belongs to the technical field of drop hammer impact experiments. The multi-drop-hammer millisecond delay loading experiment system comprises an electromagnet lifting guide wheel box, a single chip microcomputer, a winch, a plurality of drop hammer devices and two drop hammer lifting guide wheels arranged at a same height. Each of the drop hammer devices comprises a drop hammer, a sucker electromagnet and a control rope penetrating through centers of the drop hammer and the sucker electromagnet. By means of the multi-drop-hammer millisecond delay loading experiment system, the loading experiment in high-frequency vibration conditions is achieved; and millisecond delay switch of a plurality of electromagnet circuits is achieved through a multi-millisecond delay circuit, and accordingly, impulse sequence loads are formed, and actual environmental loads are simulated.

Description

technical field [0001] The invention discloses a multi-drop hammer millisecond-level delayed loading experiment system, which belongs to the technical field of drop hammer impact experiments. Background technique [0002] Buildings (structures) have to bear various environmental loads during their service life, for example, the collapse of the structure in the demolition blasting construction, the dynamic compaction construction around the structure, the impact load of the explosion and the impact load caused by accidents, etc., these events The generated energy spreads around in the form of waves, and the structure will vibrate when the waves arrive, and in severe cases, damage will occur, resulting in disasters. [0003] Because the research content of this experiment involves the production and life safety of human beings, it has attracted the attention of many scholars. Environmental excitation is a typical phenomenon of multiple shocks at high loading rates. There are ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M7/08
Inventor 刘军池恩安赵明生王众
Owner HOHAI UNIV
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