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Sand flow model test system for drop tower platform

A technology of flow model and test system, which is applied in the field of sand flow simulation test system, can solve problems such as lack of

Active Publication Date: 2014-10-22
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of effective research on this in China at present, which has a certain degree of blindness.

Method used

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  • Sand flow model test system for drop tower platform
  • Sand flow model test system for drop tower platform
  • Sand flow model test system for drop tower platform

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Embodiment

[0030] Based on the drop tower platform and according to the characteristics of the drop tower test system, the present invention designs and develops a set of model test system suitable for microgravity drop tower test. The drop chamber is the main place for the drop tower test. Compared with the test under conventional gravity, the special limitations of the drop tower equipment need to be considered in the microgravity test in the drop tower. In this embodiment, a single cabin is used for the microgravity test, and the load space in the cabin is a cylindrical space with a diameter of 850 mm and a height of 1000 mm. Therefore, the overall experimental equipment of the system of the present invention must adapt to this space limitation, such as figure 1 The shown schematic diagram of the structure of a single cabin includes a suction head 81, a cabin body 82, an in-chamber test platform 83, an in-chamber power supply 84, and a shroud 85 from top to bottom. Since the method of...

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Abstract

The invention relates to a simulation test system in the technical field of engineering geology, and particularly to a sand flowing model testing system for a drop tower platform. The model testing system comprises lamplight, a double-layer frame platform, two model boxes, a high-speed camera monitoring system and a circuit control system. After a test is started, a control room sends out a signal, a power supply of a direct-current motor is switched on, the motor drives a baffle to rotate after being energized, and at present, rock-soil particle materials inside a sand box perform free fluidization motion in the model boxes. Butt joint of the system and a control system of the drop tower test platform can be achieved; the flowing of the particle materials inside the model boxes can be realized through the remote control of the control room; and the whole moving process of the particle materials can be observed clearly by the aid of a video observation system, and at the same time, the flowing configuration and the duration time can be obtained.

Description

technical field [0001] The invention relates to a simulation test system in the technical field of engineering geology, in particular to a simulation test system for sand flow that can be used on a drop tower platform. Background technique [0002] Microgravity and its experimental facilities for microgravity research drop tower equipment introduction: [0003] Microgravity refers to a level of gravity significantly lower than the conventional Earth's surface (1g = 980cm / s 2 ) stress environment. [0004] The 100-meter drop tower of the National Microgravity Experiment (NMLC) Laboratory of the Institute of Mechanics, Chinese Academy of Sciences was built in 2003. Because the microgravity drop tower facility can obtain a few seconds of microgravity time, it is the most important and most economical ground-based microstructure for microgravity scientific research. The gravity experiment facility is also the main test base for microgravity research in my country. The total he...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/00
Inventor 黄雨王冬毛无卫
Owner TONGJI UNIV
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