A test device and test method for simulating complex loads based on electromagnetic field
A test device and electromagnetic field technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of applying surface load, difficult model components, and difficulty in changing the load size, etc., to achieve a wide range of applications, easy implementation, and adjustment easy effect
Inactive Publication Date: 2017-12-12
CHINA UNIV OF MINING & TECH
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Problems solved by technology
However, the traditional static loading is mainly realized by means of concentrated load or uniformly distributed load. The number realizes multi-point loading, and cannot generate continuous signals
Practice has proved that due to the limitations of the current load simulation technology, there is still a certain difference between the model test results and the actual engineering, and the purpose of accurately predicting the system performance has not been achieved.
[0004] It is difficult to apply surface loads to model members with uneven surfaces by using the existing load simulation technology, and it is impossible to simulate various complex loads
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[0030] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.
[0031] Such as Figure 1 to Figure 6 As shown, the test device for simulating complex loads based on electromagnetic fields includes a load simulation structure 1 and a current controller 3. The load simulation structure 1 includes a frame structure, a substrate 103 and a group of electromagnetic coils, and the substrate 103 can be arranged on each surface of the frame structure. On the substrate, there are mounting holes for fixing the electromagnetic coils, and each group of electromagnetic coils is connected with the current controller 3 .
[0032] The specific structure is that the frame structure is a cubic frame structure, and the frame structure includes a group of beams and columns 101 and a group of connecting joints 102. The connecting joints 102 are provided with three jacks, and the...
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The invention discloses a test device for simulating complicated loads based on an electromagnetic field, and a test method using the test device; the test device comprises a load simulation structure and a current controller, wherein the load simulation structure comprises a frame structure, a substrate and a set of electromagnetic coils; the substrate can be arranged on every surface of the frame structure; mounting holes used for fixing the electromagnetic coils are formed in the substrate; the set of electromagnetic coils are respectively connected with the current controller. The test method for a non-ferromagnetic model structure comprises the following steps: sticking magnetic induction material onto the surface of the tested model structure to be loaded; putting the model structure to be tested into the frame structure; switching on the current of the electromagnetic coils, adjusting the current passing through the electromagnetic coils by the current controller, and simulating the load condition. After the device and the method are adopted, various complicated static loads and dynamic loads are accurately simulated by using electromagnetic force and can act on the model structure in an all-round manner; the test device is capable of simulating various complicated loads.
Description
technical field [0001] The invention relates to the technical field of mechanical testing, in particular to a test device and a test method for simulating complex loads based on electromagnetic fields. Background technique [0002] Model testing is an important means of research in engineering fields such as machinery, vehicles, water conservancy, transportation, and construction. For some key projects, large components, bridges, high-rise buildings, etc., the whole or partial model test must be done before and after the design. [0003] By carrying out various unfavorable load tests on the model components, the static effect and dynamic response of the model components are obtained in order to check the design defects. However, the traditional static loading is mainly realized by means of concentrated load or uniformly distributed load. The number realizes multi-point loading, and cannot generate continuous signals. Practice has proved that due to the limitations of the ...
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IPC IPC(8): G01N3/08
CPCG01N3/08
Inventor 周国庆姜忠宇季雨坤李瑞林韩有民
Owner CHINA UNIV OF MINING & TECH