Numerical control air pressure flexible loading experimental device
A flexible loading and experimental device technology, applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve the problems of inability to carry out flexible loading of numerical control air pressure, inability to carry out numerical control air pressure loading, etc., to achieve convenient real-time dynamic observation of air pressure changes , Guarantee long-term pressurization and sustainability, and the effect of multiple loading functions
Inactive Publication Date: 2010-09-29
SHANDONG UNIV
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Problems solved by technology
Although its loading is in the form of air pressure, it cannot be loaded by numerical control air pressure
[0007] (4) "Journal of Rock Mechanics and Engineering", No. 21, 2004, introduced a plane strain roadway model loading control system, which uses hydraulic jacks for rigid loading, and cannot perform flexible loading with numerical control air pressure
Its loading adopts rigid loading of hydraulic jack, and cannot carry out flexible loading of numeri
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[0038] The present invention will be further described below in conjunction with the drawings and embodiments.
[0039] Figure 1-3 In, a numerical control pneumatic flexible loading experimental device, which includes a pneumatic loading and unloading device, a visual human-computer interaction interface 21 and a pneumatic numerical control system. The pneumatic loading and unloading device acts on the inside and outside of the experimental model 27. The numerical control system is connected, and the pneumatic numerical control system is connected to the visual human-computer interaction interface 21 through a cable 29.
[0040] The operator inputs the designed air pressure value or air pressure change curve through the visual human-machine interface 21, and the air pressure numerical control system automatically controls the air pressure loading at the inner and outer boundaries of the experimental model 27 after reading the pressure command, and dynamically monitors and displays...
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The invention relates to a numerical control air pressure flexible loading experimental device, comprising an air loading and unloading device, a visual man-machine interactive interface and an air pressure numerical control system, wherein, the air pressure loading and unloading device is used in the internal part and external part of an experimental model; the air loading and unloading device is connected with the air pressure numerical control system through a line; and the air pressure numerical control system is connected with the visual man-machine interactive interface through a line. When the invention is used, operators input an air-pressure value or an air pressure variation curve through the visual man-machine interactive interface; and the air pressure numerical control system automatically controls air pressure loading of the internal boundary and external boundary of the experimental model after reading an air pressure instruction, and dynamically monitors, displays and stores the air pressure variation in real time. The air pressure flexible loading device effectively realizes air pressure loading digitization, visualization and automation of the structural model. The invention has the advantages of evenly distributed boundary stress, no environmental pollution, high precision, accurate control, convenience, shortcut, digitization, visualization and automation and wide application range and the like.
Description
technical field [0001] The invention relates to a loading experiment device, in particular to a numerically controlled air pressure flexible loading experiment device. Background technique [0002] With the rapid development of transportation infrastructure and the development of underground resources, underground caverns, as a main type of underground structure, have been widely used in the fields of hydropower, transportation, resources, and energy. At the same time, the construction safety of underground caverns is also affected. more and more attention and attention. With the deepening of underground engineering and the improvement of project scale, the engineering geological conditions and hydrogeological conditions of the rock mass in the proposed underground engineering area are becoming more and more complex. In addition to research and numerical calculation methods, it is necessary to rely more on model experiments to analyze and evaluate the stability of surroundi...
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Inventor 张强勇陈旭光李术才贾超刘健张宁
Owner SHANDONG UNIV
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