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CN-122016210-A - Vibrating table test device and test method for overweight materials

CN122016210ACN 122016210 ACN122016210 ACN 122016210ACN-122016210-A

Abstract

The invention discloses a vibrating table test device and a test method for overweight materials, belonging to the technical field of equipment design and test science, the device comprises an overweight material container scale model, a model support, an earthquake simulation vibrating table, a laser displacement sensor, a high-speed camera, a first support, an acceleration sensor, a three-dimensional scanner, a micro-pressure sensor, a strain gauge and a data acquisition device. The method comprises the steps of loading, starting, processing and analyzing. According to the invention, the shaking form and wave height change of the overweight material and multisource data such as dynamic pressure distribution, displacement, acceleration and strain of the container model are collected simultaneously, so that the omnibearing monitoring of the coupling vibration response of the overweight material and the container is realized, a system support is provided for revealing an interaction mechanism of the overweight material and the container, and a detailed basis is provided for subsequent theoretical analysis, numerical simulation verification and anti-seismic design.

Inventors

  • DUAN YAOYAO
  • HU XUEWEI
  • YANG JING

Assignees

  • 昆明理工大学

Dates

Publication Date
20260512
Application Date
20260305

Claims (9)

  1. 1. The utility model provides a vibrating table test device for overweight material, includes overweight material container scale model (1), model support (2), earthquake simulation shaking table (3), laser displacement sensor (4), high-speed camera (5), first support (6), acceleration sensor (7), three-dimensional scanner (8), micro-pressure sensor (9), foil gage (10) and data acquisition device (11), characterized by be equipped with model support (2) on earthquake simulation shaking table (3), be equipped with overweight material container scale model (1) on model support (2), the material of overweight material container scale model (1) is transparent material, earthquake simulation shaking table (3) both sides are equipped with first support (6) respectively, are equipped with laser displacement sensor (4), high-speed camera (5) on first support (6), and laser displacement sensor (4) are corresponding with overweight material container scale model (1) side upper portion's displacement observation portion (12), high-speed camera (5) are towards overweight material container scale model (1) side, acceleration sensor (7), acceleration sensor (9) are located overweight material container scale model (1) side wall respectively, the three-dimensional scanner (8) is arranged on a second support (13) above the overweight material container scale model (1), the three-dimensional scanner (8) is vertically downward, the end part of the second support (13) is fixedly connected with the upper end of the first support (6), and the data acquisition device (11) is electrically connected with the laser displacement sensor (4), the high-speed camera (5), the acceleration sensor (7), the micro-pressure sensor (9) and the strain gauge (10) respectively.
  2. 2. The vibrating table test device for overweight materials according to claim 1, wherein the height-to-diameter ratio of the overweight material container scale model (1) is 1-5:1, and the thickness is 0.01-0.06 m.
  3. 3. The vibrating table test device for overweight materials according to claim 1, wherein the number of the laser displacement sensors (4) is 1-3, one laser displacement sensor (4) corresponds to one displacement observation portion (12), the number of the acceleration sensors (7) is 1-3, the number of the micro-pressure sensors (9) is 3-6, and the number of the strain gauges (10) is at least 6.
  4. 4. A vibrating table test device for overweight materials according to claim 1, 2 or 3, further comprising a high-wave instrument (14), gao Boyi (14) being longitudinally arranged in the overweight material container scale model (1), gao Boyi (14) being electrically connected to the data acquisition device (11).
  5. 5. A test method of a vibrating table test device for overweight materials according to any of claims 1 to 4, characterized by comprising the steps of: s1, loading overweight materials into an overweight material container scale model (1); S2, starting a seismic simulation vibration table (3), wherein the seismic simulation vibration table (3) outputs sine waves of 0.1 Hz-50 Hz to sweep the overweight material container scale model (1), the excellent frequency of the seismic waves output by the seismic simulation vibration table (3) is 0.1 Hz-10 Hz, the acceleration amplitude is 0.1 g-1 g, during the working period of the seismic simulation vibration table (3), a laser displacement sensor (4) is used for monitoring the displacement of a displacement observation part (12), a high-speed camera (5) is used for shooting the material motion state of the side face of the overweight material container scale model (1), an acceleration sensor (7) is used for monitoring the acceleration of the overweight material container scale model (1), a three-dimensional scanner (8) is used for scanning the surface morphology of the overweight material, a micro-pressure sensor (9) is used for measuring the dynamic pressure of the overweight material container scale model (1), a strain gauge (10) is used for measuring the strain of the overweight material container scale model (1), and a data acquisition device (11) is used for acquiring the data of the laser displacement sensor (4), the acceleration sensor (7) and the strain gauge (10); S3, processing and analyzing the acquired data.
  6. 6. Test method according to claim 5, characterized in that the overweight material is overweight liquid, or overweight liquid, solid particles.
  7. 7. The test method according to claim 6, wherein the overweight liquid has a density of 0.9g/cm 3 ～10g/cm 3 , a viscosity of 0.001 Pa.s-0.03 Pa.s, a solid particle density of 2.5g/cm 3-8 g/cm3 and a particle size of 1 mm-60 mm.
  8. 8. The test method according to claim 6 or 7, wherein when the overweight material is overweight liquid or solid particles, the overweight liquid layer (15), the overweight liquid-solid mixed layer (16) and the solid particle layer (17) are sequentially arranged in the overweight material container scale model (1) from bottom to top.
  9. 9. Test method according to claim 6 or 7, characterized in that when the overweight material is an overweight liquid, the test device further comprises a high-wave meter (14), gao Boyi (14) for measuring the sloshing wave height of the overweight liquid.

Description

Vibrating table test device and test method for overweight materials Technical Field The invention belongs to the technical field of equipment design and test science, and particularly relates to a vibrating table test device and a test method for overweight materials. Background The overweight material is overweight liquid, overweight liquid and solid mixed medium composed of overweight liquid and solid particles, and the storage container of the overweight liquid and solid mixed medium is usually provided with a metallurgical kiln, an overweight liquid storage structure, an overweight liquid-solid mixed layer storage structure and the like. If the earthquake belt is overlapped with the metallurgical industry gathering area, when an earthquake happens, the storage container is easily affected by the earthquake, hidden dangers such as structural fracture, material leakage and the like exist, and the risk of safety accidents and the environmental risk are high, so that serious threat is caused to the regional ecological environment and the health of surrounding residents. The overweight material storage container belongs to a special structure and is mainly characterized by heavy weight, high gravity center, high overturning risk and the like, the weight of the overweight material is far greater than the dead weight of the container structure, and the overweight material is used as live load and part of a system to influence the mechanical behavior and dynamic characteristics of the container structure. Under the action of earthquake, overweight materials can oscillate, hydrodynamic pressure can be generated on the container wall, especially solid particles of overweight liquid-solid mixed media can collide with the container wall, and the earthquake response of the container influences the oscillating behavior of the overweight materials, namely the coupling vibration effect of the overweight materials, so that system vibration can be aggravated, and the risks of container damage and internal medium overflow are increased. Therefore, developing the dynamic response research aiming at overweight materials and containers thereof under the action of earthquake has important significance for guaranteeing the earthquake safety of related industrial facilities. Currently, the vibrating table test is one of the main means for researching the seismic response of a structure. However, most of the existing vibrating table test devices are designed aiming at conventional structures or common fluids, and lack special equipment specially used for simulating the dynamic behavior of overweight materials (particularly high-density liquid and liquid-solid mixed media) under the action of earthquakes. On one hand, the conventional equipment is difficult to realize effective simulation of coupling vibration between the overweight material and the container, on the other hand, the existing monitoring means are concentrated on acquisition of single physical quantity, and cannot synchronously acquire multi-source information such as material shaking form, dynamic pressure distribution, container deformation and acceleration response, and the interaction mechanism between the overweight material and the container is difficult to systematically reveal. Therefore, a special test device capable of integrally monitoring the vibration behavior of overweight materials and the earthquake response of a container thereof is needed, so that the blank of the prior art is filled, and the precision and the efficiency of the earthquake-resistant research of the overweight material structure are improved. Disclosure of Invention In order to solve the technical problem of how to realize integrated monitoring of the vibration behavior of overweight materials and the earthquake response of a container thereof, the first aim of the invention is to provide a vibration table test device for overweight materials. The second object of the invention is to provide a test method of the vibrating table test device for overweight materials. The first object of the invention is realized by comprising an overweight material container scale model, a model support, an earthquake simulation vibration table, a laser displacement sensor, a high-speed camera, a first support, an acceleration sensor, a three-dimensional scanner, a micro-pressure sensor, a strain gauge and a data acquisition device, wherein the model support is arranged on the earthquake simulation vibration table, the overweight material container scale model is arranged on the model support, the overweight material container scale model is made of transparent materials, the first supports are respectively arranged on two sides of the earthquake simulation vibration table, the first supports are respectively provided with the laser displacement sensor and the high-speed camera, the laser displacement sensor corresponds to a displacement observation part on the upper part of the side surface of the o