Field intelligent vibration control system

Abstract

The invention provides an intelligent vibration control system for a site. The intelligent vibration control system comprises a vibration source vibration monitoring module, a protected site vibration monitoring module, a vibration damper module and a processing control module, the vibration source vibration monitoring module and the protected site vibration monitoring module can detect information such as the vibration frequency, the vibration speed and the vibration acceleration of a site and transmit real-time monitoring data to the processing control module. The processing control module analyzes and calculates the collected data, sends out a corresponding instruction and transmits the instruction to the damping device module; the vibration damping device module comprises a lattice type concrete structure and a water pump, and the heights of liquid filled in different lattices in the lattice type concrete structure can be adjusted according to instructions so as to control vibration of different frequencies. The field intelligent vibration control system provided by the invention is wide in applicable vibration source frequency range and good in vibration control effect; the controllable range of the field is large, and vibration control can be achieved on the field with the large depth and width.

Description

Technical Field

[0001] The invention belongs to the technical field of vibration control, and in particular relates to an intelligent site vibration control system. Background Art

[0002] The maximum design centrifugal acceleration of Zhejiang University's ultra-gravity centrifuge simulation and experimental device is 1500 g, which exceeds the maximum design acceleration of other existing ultra-gravity centrifuges in the world. Large centrifugal rotating devices generate huge periodic vibrations during operation. The vibrations are transmitted through the surrounding soil and will have adverse effects on nearby residents and office buildings. my country and related international standards have made clear requirements for vibration comfort indicators of 1~80 Hz, and the centrifuge vibration frequency range just falls within the above range. The wide frequency range brings considerable difficulties to vibration control.

[0003] In order to suppress the propagation of vibration in the site, one of the existing methods of site vibration control is the vibration isolation trench. The vibration isolation trench is to dig a certain depth of soil between the vibration source and the protected building. The depth of the vibration isolation trench has the greatest impact on the vibration isolation effect. The greater the depth, the more significant the vibration isolation effect. However, the deeper the vibration isolation trench, the more solid the support device is required, the worse the vibration isolation effect is, and the more complicated the construction is. Schmid proposed the concept of WIB in the 1990s. He proposed that the vibration in the soil layer can be isolated by artificially building "artificial bedrock" in the foundation soil, that is, by making the soil layer rigid. Later, people called this type of "artificial bedrock" vibration isolation measure wave damping block or WIB vibration isolation. However, WIB vibration isolation still has the problem that it is only effective for vibrations of a specific frequency. Once the WIB is installed, its frequency is difficult to adjust according to the characteristics of different vibration sources. However, in actual engineering, when the soil conditions deviate greatly from the design estimate, the vibration wave may change during the transmission process, making the actual vibration reduction effect less than expected. Summary of the invention

[0004] The purpose of the present invention is to provide a site intelligent vibration control system in view of the above-mentioned shortcomings.

[0005] To this end, the above-mentioned purpose of the present invention is achieved through the following technical solutions: A site intelligent vibration control system, comprising: a vibration source vibration monitoring module, a protected site vibration monitoring module, a vibration reduction device module and a processing control module; The vibration source vibration monitoring module is used to monitor the vibration characteristics of the vibration source in real time and feed back the real-time monitoring data to the processing control module; The protected site vibration monitoring module is used to monitor the vibration characteristics of the protected site in real time and feed back the real-time monitoring data to the processing control module; The vibration reduction device module is arranged in the land between the vibration source and the protected site, and the vibration reduction device module comprises a lattice concrete structure and a water pump, wherein the interior of the lattice concrete structure is divided into a plurality of grids in the horizontal and vertical directions, and water is injected or discharged into the grids through the water pump to change the natural frequency of the lattice concrete structure; Water is added or drained into the grids through a water pump to adjust the water capacity in different grids to change the natural frequency of different grids and realize vibration control of different frequencies. The water pump can be one or more; if one water pump is used, an electric control valve can be set on each grid to cooperate with the water pump; if multiple water pumps are used, each grid can correspond to one water pump.

[0006] The processing control module is used to perform real-time calculation and processing on the real-time monitoring data (including the real-time monitoring data of the vibration of the vibration source and the real-time monitoring data of the vibration of the protected site), and according to the distance between the vibration source and the protected site, the soil characteristics of the site, and the vibration characteristics of the vibration source, so as to obtain the vibration influence of the vibration source on the protected site, and at the same time send corresponding control instructions to the vibration reduction device module to inject or release water to preliminarily adjust and control the vibration reduction device module; then, according to the vibration characteristic monitoring results of the protected site, the vibration reduction device module is controlled in real time, and it is continuously iterated to achieve site vibration control.

[0007] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions: As a preferred technical solution of the present invention: the grids in the lattice-type concrete structure are independent of each other and are respectively provided with water pipe branches that can be charged and discharged, and each grid is individually provided with an electric-controlled valve; the water pipe branches are collected and connected to a water pipe main that can be charged and discharged, and the water pipe main is connected to a water reservoir via a water pump.

[0008] As a preferred technical solution of the present invention: water level sensors are respectively arranged in the grids, and the water level sensors are used to monitor the water level information in the grids and feed back the water level information to the processing control module.

[0009] As a preferred technical solution of the present invention: a certain amount of water is pre-stored in each cell.

[0010] As a preferred technical solution of the present invention: the lattice-type concrete structure is arranged along one side of the protected site.

[0011] As a preferred technical solution of the present invention: the lattice-type concrete structure is arranged in multiple directions along the circumference of the protected site.

[0012] As a preferred technical solution of the present invention: the lattice-type concrete structure is in strip shape as a whole.

[0013] As a preferred technical solution of the present invention: the vibration source vibration monitoring module is a vibration sensor, and the vibration sensor is used to monitor the vibration frequency, vibration speed and vibration acceleration of the site where the vibration source is located.

[0014] As a preferred technical solution of the present invention: the vibration monitoring module of the protected site is a vibration sensor, and the vibration sensor is used to monitor the vibration frequency, vibration speed and vibration acceleration of the protected site.

[0015] The present invention provides an intelligent vibration control system for a site. The vibration monitoring module of the vibration source and the vibration monitoring module of the protected site can detect the vibration frequency, vibration speed, vibration acceleration and other information of the site, and transmit the real-time monitoring data to the processing control module; the processing control module can analyze and calculate the collected data, and issue corresponding instructions to transmit to the vibration reduction device module; the vibration reduction device module includes a lattice-type concrete structure and a water pump, and can adjust the height of the liquid filled in different grids in the lattice-type concrete structure according to the instructions to achieve vibration control of different frequencies. The intelligent vibration control system for a site provided by the present invention is applicable to a wide range of vibration source frequencies and has a good vibration control effect; the site has a large controllable range, and can achieve vibration control for sites with larger depths and widths; it can suppress the propagation of large vibrations of different frequencies to surrounding sites, and is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A cross-sectional view of a site intelligent vibration control system proposed by the present invention; Figure 2 A typical plan layout diagram of a site intelligent vibration control system proposed by the present invention; In the figure: 1-vibration source, 2-vibration source vibration sensor, 3-processing control module, 4-water pump, 5-water reservoir, 6-lattice concrete structure, 7-protected site vibration sensor, 8-water level sensor, 91-water pipe main; 92-water pipe branch, 10-protected building. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and implementation examples: In this implementation case: the vibration frequency and acceleration of the vibration source are monitored in real time by the vibration source vibration sensor 2 (corresponding to the vibration source vibration monitoring module), and at the same time, the protected site vibration sensor 7 (corresponding to the protected site vibration monitoring module) monitors the vibration frequency and acceleration of the protected site (that is, the site where the protected building 10 is located) at this time, and the vibration acceleration of the vibration source 1 and the protected site are synchronously transmitted to the processing control module 3, and the processing control module 3 calculates and analyzes the corresponding vibration response law.

[0018] The vibration reduction device module includes a lattice concrete structure 6 and a water pump 4. The interior of the lattice concrete structure 6 is divided into a plurality of grids in the horizontal and vertical directions. The grids are independent of each other and are respectively provided with water pipe branches 92 capable of charging and discharging water. At the same time, each grid is individually provided with an electric control valve (not shown in the figure); the water pipe branches 92 are connected to a water pipe main pipe 91 capable of charging and discharging water after being collected, and the water pipe main pipe 91 is connected to a water reservoir 5 through a water pump 4. A water level sensor 8 is provided in each grid, and the water level information in the grid is monitored by the water level sensor 8.

[0019] The vibration reduction device module is started according to the vibration acceleration of the protected site, that is, the water level in the grid of the lattice concrete structure 6 is adjusted by injecting or draining water through the water pump 4, and the vibration acceleration change of the protected site is monitored in real time. The water level change in the grid of the lattice concrete structure 6 and the vibration acceleration of the protected site are synchronously transmitted to the processing control module 3, and the processing control module 3 calculates and analyzes the response law between the vibration acceleration of the vibration source 1, the water level in the grid of the lattice concrete structure 6, and the vibration acceleration of the protected site. According to this response law and the vibration requirements of the protected site, the purpose of controlling the site vibration is achieved by adjusting the water level in the grid of the lattice concrete structure 6.

[0020] The above description is only used to illustrate a specific implementation case of the present invention, and is not used to limit the applicable scope of the present invention. All equivalent changes or modifications made by those skilled in the art without departing from the spirit and principle of the present invention shall still be covered by the scope of the claims of the present invention.

Claims

1. A site intelligent vibration control system, characterized by: The system comprises: a vibration source vibration monitoring module, a protected site vibration monitoring module, a vibration reduction device module and a processing control module; The vibration source vibration monitoring module is used to monitor the vibration characteristics of the vibration source in real time and feed back the real-time monitoring data to the processing control module; The protected site vibration monitoring module is used to monitor the vibration characteristics of the protected site in real time and feed back the real-time monitoring data to the processing control module; The vibration reduction device module is arranged in the land between the vibration source and the protected site, and the vibration reduction device module comprises a lattice concrete structure and a water pump, wherein the interior of the lattice concrete structure is divided into a plurality of grids in the horizontal and vertical directions, and water is injected or discharged into the grids through the water pump to change the natural frequency of the lattice concrete structure; The processing control module is used to perform real-time calculation and processing on the real-time monitoring data according to the distance between the vibration source and the protected site, the soil characteristics of the site, and the vibration characteristics of the vibration source, so as to obtain the vibration impact of the vibration source on the protected site, and at the same time send corresponding control instructions to the vibration reduction device module to inject or release water to preliminarily adjust and control the vibration reduction device module; then, according to the vibration characteristic monitoring results of the protected site, the vibration reduction device module is controlled in real time, and it is continuously iterated to achieve site vibration control.

2. The site intelligent vibration control system according to claim 1 is characterized in that: The grids in the lattice-type concrete structure are independent of each other and are respectively provided with water pipe branches that can be charged and discharged. At the same time, each grid is individually provided with an electric control valve; the water pipe branches are collected and connected to a water pipe main that can be charged and discharged, and the water pipe main is connected to a water reservoir via a water pump.

3. The site intelligent vibration control system according to claim 1 or 2, characterized in that: Water level sensors are respectively arranged in the grids, and the water level sensors are used to monitor the water level information in the grids and feed back the water level information to the processing control module.

4. The intelligent site vibration control system according to claim 1 or 2, characterized in that: A certain amount of water is pre-stored in each cell.

5. The site intelligent vibration control system according to claim 1 is characterized in that: The lattice concrete structure is arranged along one side of the protected site.

6. The site intelligent vibration control system according to claim 1, characterized in that: The lattice concrete structure is arranged in multiple directions along the periphery of the protected site.

7. The intelligent site vibration control system according to claim 1, 5 or 6, characterized in that: The lattice concrete structure is in strip shape as a whole.

8. The site intelligent vibration control system according to claim 1 is characterized in that: The vibration source vibration monitoring module is a vibration sensor, and the vibration sensor is used to monitor the vibration frequency, vibration speed, and vibration acceleration of the site where the vibration source is located.

9. The intelligent site vibration control system according to claim 1, characterized in that: The protected site vibration monitoring module is a vibration sensor, and the vibration sensor is used to monitor the vibration frequency, vibration speed, and vibration acceleration of the protected site.

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