Digital twin structure test system and method based on a 3D printing platform

A technology of structural testing and 3D printing, applied in auxiliary molding equipment, ceramic molding machines, manufacturing tools, etc., can solve problems such as geological structure simulation accuracy errors, difficult structural models, unfavorable model tests, etc., to achieve easy operation and avoid light Insufficient, the effect of avoiding errors

Active Publication Date: 2020-01-14
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The processing of traditional structural models mainly relies on manpower, which is not only time-consuming and costly, but also has large errors in the simulation accuracy of geological structures, which is not conducive to the development of model tests
In addition, there are also great limitations in the simulation of the construction and lining process and the effect analysis of different treatment measures
For example, the construction process of tunnel excavation, the real-time simulation of surrounding rock lining, the timing of support during tunnel TBM excavation, the simulation of advanced preventive measures for tunnel rockburst and jamming, etc., are difficult to realize with traditional structural models.

Method used

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  • Digital twin structure test system and method based on a 3D printing platform
  • Digital twin structure test system and method based on a 3D printing platform

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Effect test

Embodiment 1

[0046] Embodiment 1 of the present invention provides a digital twin structure test system based on a 3D printing platform, its structure is as follows figure 1 As shown, the digital twin structural test system based on the 3D printing platform includes:

[0047] Printing platform 1, structural printing component 2, feeding component 3, tunneling component 4, loading device 5, structural model 6, micro sensor 7, high-speed camera 8, data acquisition card 9, industrial computer 10.

[0048] The structure and function of each component of the digital twin structural test system based on the 3D printing platform are as follows:

[0049] The printing platform 1 is composed of a 6m×4m×4m steel material frame structure. The bottom of the printing platform 1 is a continuous flat plate, and four beams are arranged horizontally on the top for fixing the loading device 5 and the high-speed camera 8 . A mounting frame is arranged on the left side of the printing platform 1 , and the wid...

Embodiment 2

[0072] Embodiment 2 of the present invention provides a digital twin structure test method based on a 3D printing platform, and its implementation process is as follows figure 2 shown, including the following steps:

[0073] In step S101, the working machine 10 starts the structural printing command through the printing controller 10.1 to control the structural printing component 2 to perform hierarchical printing. The structure printing command contains: a structure printing command signal, node units of the structure model, and node unit coordinate information. The node units and node unit coordinate information of the structural model are obtained according to the 3D printing file in STL format acquired by the industrial computer 10 .

[0074] The structural printing component 2 receives the structural printing command, starts printing the large-scale structural model 6 in the space of the printing platform 1, and moves the moving path of the printing head 2.1 according t...

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Abstract

The invention relates to a digital twin structure test system and method based on a 3D printing platform. An industrial personal computer starts a structure printing command to control a structure printing component to perform layered printing; when a printing layer is confirmed to reach the lower interface or the upper interface of the excavation section of a tunnel, a feeding switching command is sent to control a feeding component to be switched into an additive feeding mechanism, the industrial personal computer continuously monitors to send out a printing command by a sensor after confirming that the feeding switch is completed, and a printing head is controlled to move to a pre-determined measuring control point position of the test to perform printing of the micro sensor; the microsensor on all measuring control point positions is monitored to complete printing, the feeding switching command is sent, and after a feeding switching concrete supplying device is monitored, the structural printing command is sent to control the printing head of the structure printing component continues structural printing until all node units in a structure model are traversed. According to thedigital twin structure test system and method based on the 3D printing platform, the structure model can be quickly and finely printed, and the micro sensor embedded in the structure model can also be printed.

Description

technical field [0001] The invention relates to the field of laboratory structural model test systems, in particular to a digital twin structure test system and method based on a 3D printing platform. Background technique [0002] Intelligent construction is an important way to ensure the safety and efficiency (construction and operation) of rock mass structural engineering, and structural model testing is one of the main basis for ensuring structural safety and design. The processing of traditional structural models mainly relies on manpower, which is not only very time-consuming and costly, but also has large errors in the simulation accuracy of geological structures, which is not conducive to the development of model tests. In addition, there are also great limitations in the simulation of the construction and lining process and the effect analysis of different treatment measures. For example, the construction process of tunnel excavation, the real-time simulation of sur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B28B17/00B33Y10/00B33Y30/00
CPCB28B1/001B28B17/0063B28B17/0081B33Y10/00B33Y30/00
Inventor 刘耀儒张凯侯少康郑双凌杨强
Owner TSINGHUA UNIV
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