CN116448362A - Vibration control method, vibration control device, and storage medium for multi-layered frame structure - Google Patents
Vibration control method, vibration control device, and storage medium for multi-layered frame structure Download PDFInfo
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The embodiment of the invention provides a vibration control method, a vibration control device and a storage medium for a multi-layer frame structure, and belongs to the technical field of building structure detection. The vibration control method for a multi-layered frame structure includes: detecting a first vibration parameter value indicating the actual vibration condition of each detection area for a plurality of detection areas preset by the multi-layer frame structure; comparing and analyzing according to the first vibration parameter value of each detection area and a preset vibration threshold value, and determining the detection area needing vibration control; and determining a vibration control measure for the detection area where vibration control is required. The embodiment of the invention provides a general vibration control method for a multi-layer frame structure, which can comprehensively and effectively solve the problem of vibration of all areas of a building.
Description
Technical Field
The invention relates to the technical field of building structure detection, in particular to a vibration control method, a vibration control device and a storage medium of a multi-layer frame structure.
Background
Vibration problems of power plants are common in industrial or residential buildings. For example, power equipment such as fans, motors, crushers, shakers, hammers, rolling mills, etc. for industrial production, power equipment such as exhaust fans, air conditioners, etc. in civil buildings are liable to cause vertical vibrations of multi-story houses.
Along with the high-speed development of economy, large, heavy, extra heavy and high-running-strength power equipment is widely introduced into industrial plants, and more power equipment is added to civil buildings because of the requirements of environmental protection, energy conservation and the like. The productivity is improved, the disturbance force of the equipment is also increased sharply, and the problem of abnormal structure vibration is more and more remarkable. The structure is fatigued and aged under the action of repeated dynamic load, the dynamic performance of the structure is changed, the abnormal vibration of the structure is more obvious, and the abnormal vibration of industrial and civil buildings becomes a problem to be solved. In the existing solutions to abnormal vibration of buildings, an error vibration control scheme is often provided because of inaccurate, incomplete and the like analysis, or the proposed vibration scheme can not comprehensively and effectively solve the vibration problem of all areas of the buildings, and multiple times of vibration treatment is often required, so that the treatment period is longer and the cost is higher.
Disclosure of Invention
The embodiment of the invention aims to provide a vibration control method for a multi-layer frame structure, which can comprehensively and effectively solve the problem of vibration of all areas of a building.
In order to achieve the above object, an embodiment of the present invention provides a vibration control method for a multi-layered frame structure, including: detecting a first vibration parameter value indicating the actual vibration condition of each detection area for a plurality of detection areas preset by the multi-layer frame structure; comparing and analyzing according to the first vibration parameter value of each detection area and a preset vibration threshold value, and determining the detection area needing vibration control; and determining a vibration control measure for the detection area where vibration control is required.
Optionally, for each layer of the multi-layer frame structure, a space surrounded by four adjacent main beams is used as a detection area, and a geometric center of each detection area is used as a detection point for detecting the first vibration parameter value.
Optionally, the first vibration parameter value includes a first vertical self-vibration frequency value and a first vertical vibration speed response amplitude that are actually detected, the preset vibration threshold includes a power equipment operation frequency value of a power equipment that generates vibration and a vibration speed allowable value of the multi-layer frame structure, and the determining, according to the comparison analysis performed by the first vibration parameter value of each detection area and the preset vibration threshold, a detection area that needs to be vibration controlled includes: and determining that vibration control is required for the detection area when the difference value between the first vertical self-vibration frequency value and the power equipment operation frequency value is smaller than the preset percentage of the power equipment operation frequency value or the response amplitude of the first vertical vibration speed is larger than the allowable vibration speed value for each detection area.
Optionally, the vibration control measures include one or more of varying floor thickness, varying beam height, varying floor span, varying beam span.
Optionally, the vibration control method for a multi-layered frame structure further includes: applying the determined vibration control measure to a preset finite element simulation model of the multi-layered frame structure; calculating a second vibration parameter value of each detection area according to the preset finite element simulation model; and comparing and analyzing according to the calculated second vibration parameter value and the preset vibration threshold value, and determining whether the vibration control measure is effective.
Optionally, before the determined vibration control measure is applied to the preset finite element simulation model of the multi-layer frame structure, the vibration control method for a multi-layer frame structure further includes: constructing a finite element model of the multi-layer frame structure; obtaining a third vibration parameter value of each detection area based on the finite element model; and performing comparison analysis according to the actually detected first vibration parameter value and the third vibration parameter value obtained based on the finite element model, and correcting the finite element model.
Optionally, the third vibration parameter value includes a third vertical self-vibration frequency value and a third vertical vibration velocity response amplitude, and the comparing and analyzing the first vibration parameter value detected in practice and the third vibration parameter value obtained based on the finite element model, and correcting the finite element model includes: for each detection area, when the difference value between the third vertical self-vibration frequency value and the first vertical self-vibration frequency value is larger than the preset percentage of the first vertical self-vibration frequency value, correcting the parameters of the finite element model; and correcting the dynamic load of the finite element model when the difference between the third vertical vibration speed response amplitude and the first vertical vibration speed response amplitude is greater than a preset percentage of the first vertical vibration speed response amplitude.
Optionally, the second vibration parameter value includes a second vertical self-vibration frequency value and a second vertical vibration velocity response amplitude, and the determining, according to the comparison analysis performed between the calculated second vibration parameter value and the preset vibration threshold, whether the vibration control measure is effective includes: for each detection area, when the difference value between the second vertical self-vibration frequency value and the power equipment operation frequency value is larger than a preset percentage of the power equipment operation frequency value and the response amplitude of the second vertical vibration speed is smaller than the allowable vibration speed value, determining that the vibration control measure is effective; and otherwise, adjusting the vibration control measure to be effective.
The embodiment of the invention also provides a vibration control device for a multi-layer frame structure, which comprises: the vibration control system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the vibration control method for the multi-layer frame structure.
The embodiment of the invention also provides a machine-readable storage medium, wherein the machine-readable storage medium is stored with instructions, and the instructions enable a machine to execute the vibration control method for the multi-layer frame structure.
Through the technical scheme, the embodiment of the invention detects the first vibration parameter value indicating the actual vibration condition of each detection area for a plurality of detection areas preset by the multi-layer frame structure, determines the detection area needing vibration control, and determines the vibration control measure for the detection area needing vibration control. The universal vibration control method for the multi-layer frame structure can comprehensively and effectively solve the vibration problem of all areas of a building.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
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The accompanying drawings are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain, without limitation, the embodiments of the invention. In the drawings:
fig. 1 is a schematic flow chart of a vibration control method for a multi-layered frame structure according to an embodiment of the present invention; and
FIG. 2 is an exemplary flow chart for verifying vibration control measures.
Detailed Description
The following describes the detailed implementation of the embodiments of the present invention with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Fig. 1 is a schematic flow chart of a vibration control method for a multi-layered frame structure according to an embodiment of the present invention, please refer to fig. 1, wherein the vibration control method for a multi-layered frame structure may include the following steps:
step S110: and detecting a first vibration parameter value indicating the actual vibration condition of each detection area for a plurality of detection areas preset by the multi-layer frame structure.
In the embodiment of the invention, for each layer of frame structure in the multi-layer frame structure, a space surrounded by four adjacent main beams is used as a detection area, and the geometric center of each detection area is used as a detection point for detecting the first vibration parameter value.
By way of example, for each of the multi-layer frame structures, a space defined by four adjacent main beams may be used as a detection area, and each detection area may be named, for example, as Q ij Where i denotes an i-th layer frame structure, and j denotes a j-th detection region of the i-th layer. The geometric center of each detection area may be taken as a detection point for detecting the first vibration parameter value, for example, the first vibration parameter value indicating the actual vibration condition of each detection area may be obtained by a vibration sensor arranged at the geometric center position of the area of each detection area, and the first vibration parameter value includes, for example, the actual detected first vertical self-vibrationFrequency value f ij And a first vertical vibration velocity response amplitude V ij Etc.
Step S120: and comparing and analyzing according to the first vibration parameter value of each detection area and a preset vibration threshold value, and determining the detection area needing vibration control.
The first vibration parameter value may include a first vertical self-vibration frequency value and a first vertical vibration speed response amplitude that are actually detected, and the preset vibration threshold may include a power equipment operation frequency value of a power equipment generating vibration and a vibration speed allowable value of the multi-layer frame structure. Preferably, step S120 may include: and determining that vibration control is required for the detection area when the difference value between the first vertical self-vibration frequency value and the power equipment operation frequency value is smaller than the preset percentage of the power equipment operation frequency value or the response amplitude of the first vertical vibration speed is larger than the allowable vibration speed value for each detection area.
By way of example, a first value f of the vertical natural frequency measured for each detection zone ij And a power plant operating frequency value f e Comparing the first vertical vibration velocity response amplitude V obtained by actual measurement of each detection area ij Comparing with the allowable value (e.g. 10 mm/s) of vibration speed, taking the preset percentage of 20% as an example, when the vibration speed is equal to the allowable valueOr V ij >A detection area of 10mm/s was determined to be required for vibration control. Then, the detection area that does not satisfy the above condition does not need to take vibration control measures.
The above-mentioned preset percentage and the preset percentage appearing later can be determined according to the data obtained by a large amount of engineering practice, and will not be described in detail later.
Step S130: and determining vibration control measures for the detection area needing vibration control.
Preferred vibration control measures of embodiments of the present invention include one or more of varying floor thickness, varying beam height, varying floor span, varying beam span.
In connection with the above example, the vibration control measures are determined for the detection areas where vibration control is required, and for example, the floor spans may be changed to 1/N (N is, for example, greater than 1). Different control measures can also be used for each detection area that needs to be vibration controlled, for example, the vibration control measures determined by one or more detection areas are: the beam section height is changed and the floor span is changed, for example, the beam section height becomes k times (k is, for example, greater than 1) the original floor span becomes 1/2 the original floor span.
Referring to fig. 2, preferably, the vibration control method for a multi-layered frame structure may further include the steps of:
step S210: the determined vibration control measures are applied in a preset finite element simulation model of the multi-layered frame structure.
Preferably, before step S210, the vibration control method for a multi-layered frame structure may further include: constructing a finite element model of the multi-layer frame structure; obtaining a third vibration parameter value of each detection area based on the finite element model; and performing comparison analysis according to the actually detected first vibration parameter value and the third vibration parameter value obtained based on the finite element model, and correcting the finite element model.
By way of illustration, a corresponding finite element model is constructed from the overall frame structure characteristics of the multi-layered frame structure, and vibration characteristics and dynamic response analyses are performed. For example, by using the existing finite element analysis software, a finite element model of the multi-layer frame structure to be subjected to vibration characteristics and dynamic response analysis is established, and a third vibration parameter value of each detection area is calculated, wherein the third vibration parameter value may include a third vertical self-vibration frequency value f' ij And a third vertical vibration velocity response amplitude V' ij . For example, based on the finite element model, analysis of the natural vibration characteristics of the frame structure may be performed, and a third vertical natural vibration frequency value f 'of each detection region may be calculated' ij The method comprises the steps of carrying out a first treatment on the surface of the By being matched withThe finite element model inputs the vibration load P (f) of the power equipment e ) Performing dynamic analysis to obtain a third vertical vibration speed response amplitude V 'of each detection area' ij . Further, the first vertical self-vibration frequency value f obtained by actually measuring each detection area can be obtained ij And the third vertical self-vibration frequency value f 'obtained through calculation' ij Comparing the first vertical vibration velocity response amplitude V obtained by actual measurement of each detection area ij And the third vertical vibration velocity response amplitude V 'obtained through calculation' ij And comparing, and correcting the finite element model.
Preferably, the third vibration parameter value includes a third vertical self-vibration frequency value and a third vertical vibration velocity response amplitude, and the comparing and analyzing the third vibration parameter value according to the actually detected first vibration parameter value and the third vibration parameter value obtained based on the finite element model, and correcting the finite element model may include: for each detection area, when the difference value between the third vertical self-vibration frequency value and the first vertical self-vibration frequency value is larger than the preset percentage of the first vertical self-vibration frequency value, correcting the parameters of the finite element model; and correcting the dynamic load of the finite element model when the difference between the third vertical vibration speed response amplitude and the first vertical vibration speed response amplitude is greater than a preset percentage of the first vertical vibration speed response amplitude.
With the above example, for each detection area, when (e.g., 15%) modifying parameters of the finite element model; when-> (e.g., 15%) in the repairAnd the dynamic load of the finite element model is positive. Further, recalculating based on the corrected finite element model to obtain a third vibration parameter value of each detection area; and according to the actually detected first vibration parameter value and the third vibration parameter value obtained based on the finite element model, performing comparison analysis, and correcting the finite element model until all detection areas meet ∈>(e.g., 15%), and (e.g., 15%), then the finite element model may be used for kinetic analysis, which is considered to be accurate and reliable based on the finite element model analysis results.
In connection with the above example, the vibration control measures determined in step S130 are applied to the above finite element simulation model, and vibration characteristics and dynamic response analyses are performed again on the frame structure.
Step S220: and calculating a second vibration parameter value of each detection area according to the preset finite element simulation model.
Wherein the second vibration parameter value comprises, for example, a second vertical self-vibration frequency value f ij And a second vertical vibration velocity response amplitude V ij Etc. With the above example in mind, based on the finite element model to which the vibration control measures are applied, vibration characteristics and dynamic response analyses are re-performed on the frame structure: the self-vibration characteristic analysis of the frame structure can be carried out, and the second vertical self-vibration frequency value f' of each detection area is obtained through calculation ij The method comprises the steps of carrying out a first treatment on the surface of the By inputting the power plant vibration load P (f) to the finite element model e ) Performing dynamic analysis to obtain a second vertical vibration speed response amplitude V' of each detection area ij 。
Step S230: and comparing and analyzing according to the calculated second vibration parameter value and the preset vibration threshold value, and determining whether the vibration control measure is effective.
The second vibration parameter value preferably includes a second vertical self-vibration frequency value and a second vertical vibration speed response amplitude. Preferably, step S230 may include: for each detection area, when the difference value between the second vertical self-vibration frequency value and the power equipment operation frequency value is larger than a preset percentage of the power equipment operation frequency value and the response amplitude of the second vertical vibration speed is smaller than the allowable vibration speed value, determining that the vibration control measure is effective; and otherwise, adjusting the vibration control measure to be effective.
With the above example, the second vertical self-vibration frequency value f' of each detection area obtained by the recalculation analysis is adopted ij With power plant operating frequency f e Comparing the first vertical vibration velocity response amplitude V' of each detection area obtained by recalculation analysis ij Comparing with a permissible vibration speed value (for example, 10 mm/s):
if all detection areas meet(e.g., 20%) and V ij And less than or equal to 10mm/S, the vibration control measure determined in the step S130 is considered to be effective; if present(e.g., 20%) or V ij >If the detection area is 10mm/S, adjusting the vibration control measure, and repeating the steps S130-S230 until all detection areas meet +.>And V' ij ≤10mm/s。
Accordingly, the embodiment of the invention detects the first vibration parameter value indicating the actual vibration condition of each detection area for a plurality of detection areas preset in the multi-layer frame structure, determines the detection area needing to be subjected to vibration control, and determines the vibration control measure for the detection area needing to be subjected to vibration control. A general vibration control method for a multi-layered frame structure is provided. Further, by performing multiple and comprehensive comparative analysis and verification on the self-vibration frequency, vibration response and vibration control measures of each detection area of the multi-layer frame structure, effective vibration control can be performed on all detection areas of the multi-layer frame structure; the embodiment of the invention has the characteristics of comprehensiveness, accuracy, reliability and good universality, and can realize the vertical vibration control of all detection areas of the multi-layer frame structure at one time without secondary treatment.
Embodiments of the present invention are verified with one application example. For example, a three-layer reinforced concrete frame structure, two layers of which are provided with a power plant, the power plant of the power plant has the operating frequency f for example e =15 Hz, vibration load P (f e ) The amplitude was 2.5kN. When the power equipment is used, the vertical vibration and vibration feeling of the partial area of the three-layer reinforced concrete frame structure are obvious.
When there are a plurality of power apparatuses, the vibration control measure determination may be performed for each power apparatus separately.
According to step S110, for each of the three-layer frame structure, a space surrounded by four adjacent main beams can be used as a detection area, which is named as Q ij . For example, the frame structure may have a total of three layers, e.g., 4 detection zones for each layer, and a total of 12 detection zones, designated as column 1 of Table 1 below. Acquiring a first vibration parameter value indicative of an actual vibration condition of each detection region by a vibration sensor arranged at a region geometric center position of each detection region, for example, actually detecting to obtain a first vertical self-vibration frequency value f of each detection region ij And a first vertical vibration velocity response amplitude V ij As shown in columns 2 and 4 of table 1 below.
Further, a corresponding finite element model can be constructed according to the integral characteristics of the frame structure of the multi-layer frame structure, vibration characteristics and dynamic response analysis are carried out, and three vertical self-vibration frequency values f 'of each detection area are obtained through calculation' ij And a third vertical vibration velocity response amplitude V' ij The following tableColumn 1, 3 and column 5.
Table 1 results of comparing measured and calculated vibration parameters for each test area
| Detection area | f ij /Hz | f′ ij /Hz | V ij /(mm/s) | V′ ij /(mm/s) |
| Q 11 | 10.2 | 10.3 | 5.2 | 4.9 |
| Q 12 | 10.9 | 10.5 | 5.4 | 5.5 |
| Q 13 | 11.1 | 10.9 | 3.2 | 3.3 |
| Q 14 | 11.1 | 10.4 | 3.0 | 3.4 |
| Q 21 | 11.7 | 11.9 | 12.5 | 13.0 |
| Q 22 | 14.5 | 14.6 | 24.2 | 25.6 |
| Q 23 | 12.1 | 12.3 | 8.9 | 9.4 |
| Q 24 | 11.5 | 11.4 | 7.8 | 8.5 |
| Q 31 | 9.2 | 9.4 | 6.4 | 6.8 |
| Q 32 | 9.6 | 9.9 | 6.8 | 6.8 |
| Q 33 | 9.5 | 9.9 | 8.2 | 8.5 |
| Q 34 | 9.8 | 9.7 | 7.4 | 7.7 |
In the above example, the first vertical self-vibration frequency value f obtained by actually measuring each detection area may be used ij And the third vertical self-vibration frequency value f 'obtained through calculation' ij Comparing the first vertical vibration velocity response amplitude V obtained by actual measurement of each detection area ij And the third vertical vibration velocity response amplitude V 'obtained through calculation' ij Comparison is performed:
from the data in table 1, it can be seen that: all detection areas of the frame structure meet (e.g., 15%), and->(e.g., 15%), the finite element model and analysis results are determined to be accurate and reliable, dynamic analysis can be performed using the finite element model.
According to step S120, each detection region is definedThe measured first vertical self-vibration frequency value f ij And a power plant operating frequency value f e (15 Hz) and comparing the measured first vertical vibration velocity response amplitude V of each detection region ij Comparison analysis with allowable vibration speed (e.g., 10 mm/s): determining presence ofOr V ij >A detection area of 10mm/s requires vibration control. For example, as shown in Table 1, the detection region Q 21 、Q 22 、Q 23 Vibration control is required.
According to step S120, for the detection region Q 21 And Q 23 For example, vibration control measures are taken to change the floor spans, for example, the floor spans are all 1/2 of the original floor spans; for the detection area Q 22 The domain adopts vibration control measures that change the beam section height and change the floor span, for example, the beam section height becomes 1.5 times the original and the floor span becomes 1/2 of the original.
According to steps S210-S220, applying the vibration control measure to the finite element simulation model, and recalculating and analyzing to obtain a second vertical self-vibration frequency value f' of each detection area ij And a second vertical vibration velocity response amplitude V ij The calculation results are shown in Table 2.
Table 2 vibration parameter calculation results for each detection area after recalculation
| Detection area | f″ ij /Hz | V″ ij /(mm/s) |
| Q 11 | 10.5 | 4.8 |
| Q 12 | 10.7 | 5.1 |
| Q 13 | 10.7 | 3.7 |
| Q 14 | 10.8 | 3.6 |
| Q 21 | 19.4 | 4.3 |
| Q 22 | 21.6 | 5.8 |
| Q 23 | 19.1 | 4.1 |
| Q 24 | 13.9 | 17.5 |
| Q 31 | 9.3 | 6.7 |
| Q 32 | 9.8 | 6.2 |
| Q 33 | 9.2 | 8.1 |
| Q 34 | 9.5 | 7.2 |
According to step S230, it is determined whether the vibration control measure is effective:
divide the detection area Q 24 Except for the rest detection areas, all satisfy(e.g., 20%) and V ij The requirement of less than or equal to 10 mm/s; detection region Q 24 ，/> (e.g., 20%) and V ij ＝17.5mm/s>10mm/s, determining the detection area Q 24 Vibration control is required.
According to step S130, for the detection region Q 24 Vibration control measures such as changing the beam span are taken, for example, changing the beam span to 1/2 of the original.
According to step S230, the detection region Q is to be checked 21 、Q 22 、Q 23 Q and Q 24 Substituting vibration control measures of the detection regions into a frame structure integral finite element model, performing calculation and analysis again to obtain a second vertical self-vibration frequency value of each detection region, and marking the second vertical self-vibration frequency value as f '' ij And a second vertical vibration velocity response amplitude, noted V '' ij The calculation results are shown in Table 3.
Table 3 results of vibration parameter calculation for each detection area after re-calculation
| Detection area | f″′ ij /Hz | V″′ ij /(mm/s) |
| Q 11 | 10.6 | 4.5 |
| Q 12 | 10.2 | 4.8 |
| Q 13 | 10.5 | 3.6 |
| Q 14 | 10.4 | 3.7 |
| 2 21 | 20.2 | 4.1 |
| Q 22 | 22.9 | 5.1 |
| Q 23 | 19.8 | 3.7 |
| Q 24 | 19.2 | 6.4 |
| Q 31 | 9.5 | 6.8 |
| Q 32 | 10.1 | 6.4 |
| Q 33 | 10.2 | 8.3 |
| Q 34 | 9.7 | 7.4 |
According to step S230, it is determined whether the vibration control measure is effective:
all detection areas satisfy(e.g., 20%) and V ij The requirement of less than or equal to 10mm/s, the vibration control measures described above are considered to be effective, and the final vibration control measures for the frame structure are determined as: for the detection area Q 21 And Q 23 Adopting vibration control measures for changing the floor spans, wherein the floor spans are changed to 1/2 of the original floor spans; for the detection area Q 22 Adopts vibration control measures of changing the height of the beam section and changing the span of the floor, the height of the beam section is changed to 1.5 times of the original height, and the span of the floor is changed1/2 of the original one; for the detection area Q 24 And adopting vibration control measures for changing the beam span, wherein the beam span is changed to 1/2 of the original beam span.
Accordingly, the embodiment of the invention can realize comprehensive, accurate, reliable and effective vibration control on all areas of the multi-layer frame structure at one time by carrying out multiple and comprehensive comparative analysis and verification on the self-vibration frequency, the vibration response and the vibration control measures of each detection area of the multi-layer frame structure.
The embodiment of the invention also provides a vibration control device for a multi-layer frame structure, which comprises: the vibration control system comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the processor executes the computer program to realize the vibration control method for the multi-layer frame structure in the steps S110-S130.
Embodiments of the present invention also provide a machine-readable storage medium having stored thereon instructions for causing a machine to perform the vibration control method for a multi-layered frame structure described in steps S110-S130.
It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In one typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include volatile memory in a computer-readable medium, random Access Memory (RAM) and/or nonvolatile memory, etc., such as Read Only Memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.
Computer readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises an element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (10)
1. A vibration control method for a multi-layered frame structure, characterized by comprising:
detecting a first vibration parameter value indicating the actual vibration condition of each detection area for a plurality of detection areas preset by the multi-layer frame structure;
comparing and analyzing according to the first vibration parameter value of each detection area and a preset vibration threshold value, and determining the detection area needing vibration control; and
and determining vibration control measures for the detection area needing vibration control.
2. The vibration control method for a multi-layered frame structure according to claim 1, wherein for each layered frame structure in the multi-layered frame structure, a space surrounded by four adjacent main beams is used as a detection area, and a geometric center of each detection area is used as a detection point for detecting the first vibration parameter value.
3. The vibration control method for a multi-layered frame structure according to claim 1, wherein the first vibration parameter value includes a first vertical self-vibration frequency value and a first vertical vibration velocity response amplitude that are actually detected, the preset vibration threshold value includes a power equipment operation frequency value of a power equipment that generates vibration and a vibration velocity tolerance value of the multi-layered frame structure, and the determining a detection area that needs vibration control based on the first vibration parameter value of each detection area and the preset vibration threshold value includes:
and determining that vibration control is required for the detection area when the difference value between the first vertical self-vibration frequency value and the power equipment operation frequency value is smaller than the preset percentage of the power equipment operation frequency value or the response amplitude of the first vertical vibration speed is larger than the allowable vibration speed value for each detection area.
4. The vibration control method for a multi-layered frame structure according to claim 1, wherein the vibration control measures include one or more of changing floor thickness, changing beam height, changing floor span, changing beam span.
5. The vibration control method for a multi-layered frame structure according to claim 3, characterized in that the vibration control method for a multi-layered frame structure further comprises:
applying the determined vibration control measure to a preset finite element simulation model of the multi-layered frame structure;
calculating a second vibration parameter value of each detection area according to the preset finite element simulation model; and
and comparing and analyzing according to the calculated second vibration parameter value and the preset vibration threshold value, and determining whether the vibration control measure is effective.
6. The vibration control method for a multi-layered frame structure according to claim 5, wherein before said applying the determined vibration control measure in a preset finite element simulation model of the multi-layered frame structure, the vibration control method for a multi-layered frame structure further comprises:
constructing a finite element model of the multi-layer frame structure;
obtaining a third vibration parameter value of each detection area based on the finite element model; and
and comparing and analyzing the first vibration parameter value detected actually and the third vibration parameter value obtained based on the finite element model, and correcting the finite element model.
7. The vibration control method for a multi-layered frame structure according to claim 6, wherein the third vibration parameter value includes a third vertical self-vibration frequency value and a third vertical vibration velocity response amplitude, the comparing analysis is performed on the first vibration parameter value that is actually detected and the third vibration parameter value that is obtained based on the finite element model, and the correcting the finite element model includes:
for each detection area, when the difference value between the third vertical self-vibration frequency value and the first vertical self-vibration frequency value is larger than the preset percentage of the first vertical self-vibration frequency value, correcting the parameters of the finite element model; and
and when the difference value between the third vertical vibration speed response amplitude and the first vertical vibration speed response amplitude is larger than the preset percentage of the first vertical vibration speed response amplitude, correcting the dynamic load of the finite element model.
8. The vibration control method for a multi-layered frame structure according to claim 5, wherein the second vibration parameter value includes a second vertical self-vibration frequency value and a second vertical vibration velocity response amplitude, wherein the determining whether the vibration control measure is effective based on the comparison analysis of the calculated second vibration parameter value and the preset vibration threshold value includes:
for each detection area, when the difference value between the second vertical self-vibration frequency value and the power equipment operation frequency value is larger than a preset percentage of the power equipment operation frequency value and the response amplitude of the second vertical vibration speed is smaller than the allowable vibration speed value, determining that the vibration control measure is effective; and
otherwise, the vibration control measure is adjusted to be effective.
9. A vibration control device for a multi-layered frame structure, the vibration control device comprising: a memory, a processor and a computer program stored on the memory and executable on the processor, the processor executing the computer program to implement the vibration control method for a multi-layered frame structure according to any one of claims 1 to 8.
10. A machine-readable storage medium having stored thereon instructions that cause a machine to perform the vibration control method for a multi-layered frame structure according to any one of claims 1-8.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139969A (en) * | 1994-01-28 | 1997-01-08 | 纽约州立大学研究基金会 | Improved method and apparatus for real-time structure parameter modification |
| CN204286430U (en) * | 2014-12-09 | 2015-04-22 | 新疆建设职业技术学院 | A kind of distributed wireless skyscraper tilt and vibration monitoring sensor |
| CN106448429A (en) * | 2016-09-23 | 2017-02-22 | 大连理工大学 | Multilayer frame teaching experiment model and experiment method thereof |
| CN109056429A (en) * | 2018-09-06 | 2018-12-21 | 西南交通大学 | Half active damping method and apparatus of floating plate track fundamental frequency |
| CN110501130A (en) * | 2019-09-21 | 2019-11-26 | 中冶建筑研究总院有限公司 | A kind of diagnosis of dynamic calculation and abnormal vibrations for superstructure and administering method |
| CN112130599A (en) * | 2020-08-28 | 2020-12-25 | 同济大学 | Cable multi-mode vibration control method considering damper performance frequency dependency |
| CN112698572A (en) * | 2020-12-22 | 2021-04-23 | 西安交通大学 | Structural vibration control method, medium and equipment based on reinforcement learning |
| CN215106202U (en) * | 2021-01-08 | 2021-12-10 | 中铁二院工程集团有限责任公司 | Suspended floor damping structure of high-rise building |
| CN113802623A (en) * | 2021-10-25 | 2021-12-17 | 苏悦 | Earthquake-resistant reinforcing method for building foundation |
-
2023
- 2023-04-20 CN CN202310430292.1A patent/CN116448362B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1139969A (en) * | 1994-01-28 | 1997-01-08 | 纽约州立大学研究基金会 | Improved method and apparatus for real-time structure parameter modification |
| CN204286430U (en) * | 2014-12-09 | 2015-04-22 | 新疆建设职业技术学院 | A kind of distributed wireless skyscraper tilt and vibration monitoring sensor |
| CN106448429A (en) * | 2016-09-23 | 2017-02-22 | 大连理工大学 | Multilayer frame teaching experiment model and experiment method thereof |
| CN109056429A (en) * | 2018-09-06 | 2018-12-21 | 西南交通大学 | Half active damping method and apparatus of floating plate track fundamental frequency |
| CN110501130A (en) * | 2019-09-21 | 2019-11-26 | 中冶建筑研究总院有限公司 | A kind of diagnosis of dynamic calculation and abnormal vibrations for superstructure and administering method |
| CN112130599A (en) * | 2020-08-28 | 2020-12-25 | 同济大学 | Cable multi-mode vibration control method considering damper performance frequency dependency |
| CN112698572A (en) * | 2020-12-22 | 2021-04-23 | 西安交通大学 | Structural vibration control method, medium and equipment based on reinforcement learning |
| CN215106202U (en) * | 2021-01-08 | 2021-12-10 | 中铁二院工程集团有限责任公司 | Suspended floor damping structure of high-rise building |
| CN113802623A (en) * | 2021-10-25 | 2021-12-17 | 苏悦 | Earthquake-resistant reinforcing method for building foundation |
Non-Patent Citations (1)
| Title |
|---|
| 张海龙: "多层选煤厂房楼板振动检测与控制研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》, no. 4 * |
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