Device and method for testing dynamic characteristics of magnetic suspension low-positioned structure
A test device and a technology of dynamic characteristics, which are applied in the dynamic characteristic test device and field of maglev low-rise structures, can solve the problems of unclear action frequency and dynamic load loading mode, and the inability to maglev low-rise structure dynamic characteristics, etc., to achieve easy disassembly, The effect of convenient transportation
Pending Publication Date: 2022-07-12
SOUTHWEST JIAOTONG UNIV
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Second, the frequency of action of the maglev train on the low-rise structure and the way of dynamic load loading are not
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The invention discloses a device and a method for testing the dynamic characteristics of a magnetic suspension low-positioned structure. The device comprises a model test box and a low-positioned structure model arranged in the model test box, the loading system is arranged above the model test box and is used for applying a mechanical load to a span in the low structure model; the monitoring device is used for measuring the internal parameter change of the low structure model in the loading process; and the circulating rainfall system is used for simulating circulating rainfall. According to the invention, the circulating rainfall system is arranged, so that the dynamic characteristic test of the magnetic suspension low-mounted structure under the natural working condition and the rainfall working condition can be realized, and rainwater can be recycled; meanwhile, the rainwater recycling volume is measured, and data support is provided for the permeability characteristics of the low-structure roadbed under the heavy rainfall condition.
Description
technical field [0001] The invention relates to a geotechnical test device and a test method, in particular to a dynamic characteristic test device and a test method of a magnetic suspension low-position structure. Background technique [0002] The maglev train has no mechanical contact with the track structure, so it has the advantages of low vibration, low noise, and fast acceleration. Due to the small suspension gap between the maglev train and the track structure, the deformation control of the low-lying structure is extremely strict. Industry experts generally believe that the maglev traffic should pass in the form of a viaduct structure, and a low-lying structure should not be used. However, for some road sections with good stratum characteristics and small filling height, it is more economical to use the low-lying structure to pass. The low-lying structure of maglev traffic is composed of two parts: the rail-bearing beam and the subgrade under the beam. The train str...
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Login to View More IPC IPC(8): G01M17/08
CPCG01M17/08
Inventor 王武斌董敏琪丁兆锋李艳东黄志超邓志兴
Owner SOUTHWEST JIAOTONG UNIV