Method for optimizing a vibration damping arrangement

Abstract

The application provides an optimization method of a damping arrangement, comprising the following steps: collecting vibration displacement responses and acceleration responses of a reactor device; fitting the collected vibration displacement responses and acceleration responses of the reactor device by using a sine superposition method to obtain a vibration displacement response formula and an acceleration response formula of the reactor device; performing simulation modeling on the reactor device to obtain a first simulation model; combining the vibration response formula of the reactor device and the acceleration response formula of the reactor device, performing initial layout on a damping structure of the reactor device, and performing simulation modeling on the damping structure of the reactor device on the basis of the first simulation model to obtain a second simulation model; performing vibration loading on the second simulation model, and adjusting the layout mode of the damping structure of the reactor device according to the vibration loading result. Through the technical scheme provided by the application, the technical problem that the damping technology effect of the reactor device in the prior art is poor can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vibration reduction arrangement of electric reactor device, and particularly relates to a vibration reduction arrangement optimization method. BACKGROUND

[0002] At present, with the construction of cross-regional long-distance power transmission and transformation projects and the continuous improvement of voltage levels, the charging capacity of the power transmission line is significantly increased. In order to compensate the charging power of the line, suppress the power frequency overvoltage of the system, and ensure the safe and stable operation of the system, high-voltage shunt reactors (hereinafter referred to as reactors) have become an indispensable electrical device in the ultra-high voltage power grid. The main part of the reactor is composed of a winding and a core. When the reactor is working, the winding electromagnetic force generated by the interaction of the leakage magnetic field and the current, the electromagnetic force borne by the core, and the magnetic strain of the core cause the vibration of the reactor. The vibration is transmitted through the core components and the like, and the vibration wave generated by the vibration is transmitted along the reactor structure to the lower structure. The vibration of the lower structure is transmitted along the plate-wall-column in the structure. When the voltage level of the reactor is higher and the capacity is larger, the vibration amplitude will obviously increase, which not only affects the voltage quality, is not conducive to loss reduction and efficiency increase, but also has a great influence on the normal use of the building, and is easy to cause noise pollution, equipment damage and other safety production accidents.

[0003] At present, for the vibration analysis of 500kV high-voltage shunt reactor device, the empirical formula method is mostly used to predict the vibration response, and only the dynamic response of the floor directly below the reactor device and the structural components is considered, so the analysis accuracy is low and the vibration reduction effect is not obvious. At present, the vibration reduction device for 500kV high-voltage shunt reactor device mainly has the following defects: the accuracy of the equivalent model of the high-voltage shunt reactor is low, which leads to poor vibration reduction effect of the reactor device. SUMMARY

[0004] The main purpose of the present application is to provide a vibration reduction arrangement optimization method to solve the technical problem of poor vibration reduction effect of the reactor device in the prior art.

[0005] In order to achieve the above object, according to one aspect of the present application, a method for optimizing a vibration damping arrangement is provided, comprising: collecting vibration displacement response and acceleration response of a reactor device, fitting the collected vibration displacement response and acceleration response of the reactor device by using a sine superposition method to obtain a vibration displacement response formula and an acceleration response formula of the reactor device; performing simulation modeling on the reactor device to obtain a first simulation model; combining the vibration response formula of the reactor device and the acceleration response formula of the reactor device, performing initial layout on a damping structure of the reactor device, and performing simulation modeling on the damping structure of the reactor device on the basis of the first simulation model to obtain a second simulation model; performing vibration loading on the second simulation model, and adjusting the layout mode of the damping structure of the reactor device according to the vibration loading result.

[0006] Further, the collecting of the vibration displacement response and the acceleration response of the reactor device comprises: collecting displacement response and acceleration response of a body of the reactor device, displacement response and acceleration response of a lower structural beam of the reactor device, and displacement response and acceleration response of a square plate of the reactor device by using a multi-point measurement method.

[0007] Further, the collecting of the vibration displacement response and the acceleration response of the reactor device comprises: a plurality of groups of test points are arranged on the reactor device, each group of test points in the plurality of groups of test points comprises two test points; wherein the two test points comprise a first test point and a second test point, the first test point is arranged below the reactor device, and the first test point is used for testing three-directional acceleration response of a lower structural beam and a square plate of the reactor device in X-axis, Y-axis and Z-axis directions; the second test point is arranged at a middle part of the reactor device, and the second test point is used for testing Z-directional acceleration response of a door hole and a structural beam of the reactor device.

[0008] Further, the fitting of the collected vibration displacement response and acceleration response of the reactor device by using the sine superposition method comprises: according to test data collected by the multi-point measurement, drawing an acceleration time history curve and a frequency spectrum of response; selecting a maximum vibration displacement A of the reactor to obtain the acceleration response of the reactor device as:

[0009] .

[0010] Further, the fitting of the collected vibration displacement response and acceleration response of the reactor device by using the sine superposition method comprises: according to test data collected by the multi-point measurement, drawing a displacement time history curve and a frequency spectrum of response; selecting a maximum vibration displacement A of the reactor to obtain the vibration displacement response of the reactor device as:

[0011] .

[0012] Further, the simulation modeling of the reactor device comprises: adopting a BEAM188 unit to simulate the beam and column of the reactor device, adopting a SOLID64 unit to simulate the body of the reactor device, and adopting a SHELL63 unit to simulate the floor of the reactor device, so as to establish a finite element model.

[0013] Further, the damping structure of the reactor device comprises a damping structure; the simulation modeling of the damping structure of the reactor device further comprises: adopting a spring damping unit COMBIN14 unit to simulate the damping structure; obtaining the first ten order partial vibration modes of the reactor device through modal analysis; wherein, the first four order frequencies are the main frequencies of the damping structure, and the main frequencies of the damping structure are concentrated in 2.94~4.95Hz; the vibration modes after the seventh order are the frequencies of the deformation of the structure floor and wall, and the deformation frequencies of the structure floor and wall are greater than 8.15Hz.

[0014] Further, the optimization method of the damping arrangement further comprises: adopting a cradle arrangement to optimize the damping of the reactor device.

[0015] Further, the optimization method of the damping arrangement further comprises: adopting a cradle arrangement to optimize the damping of the reactor device.

[0016] Further, the optimization method of the damping arrangement further comprises: adopting a cradle arrangement to optimize the damping of the reactor device.

[0017] The technical scheme of the present application effectively combines the formula fitting result and the simulation, and effectively guides the actual arrangement mode by using the simulation result, so as to obtain the optimal damping arrangement mode, thereby effectively improving the damping effect of the reactor device. Therefore, the damping arrangement optimization method provided by the present embodiment can solve the technical problem of poor damping effect of the reactor device in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings constituting a part of the specification of the present application are used to provide a further understanding of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A damping structure arrangement schematic diagram of a reactor device body provided by an embodiment of the present application is shown.

[0020] Wherein, the above drawings comprise the following reference signs:

[0021] 10. The reactor device;

[0022] 21. A first damper; 22. A second damper; 23. A third damper;

[0023] 30. A support frame. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] The embodiment of the present application provides an optimization method of a damping arrangement, which comprises the following steps: collecting vibration displacement responses and acceleration responses of a reactor device 10, fitting the collected vibration displacement responses and acceleration responses of the reactor device 10 by using a sine superposition method to obtain a vibration displacement response formula and an acceleration response formula of the reactor device 10; performing simulation modeling on the reactor device 10 to obtain a first simulation model; combining the vibration response formula of the reactor device 10 and the acceleration response formula of the reactor device 10 to perform initial layout on a damping structure of the reactor device 10, and performing simulation modeling on the damping structure of the reactor device 10 on the basis of the first simulation model to obtain a second simulation model; performing vibration loading on the second simulation model, and adjusting an arrangement mode of the damping structure of the reactor device 10 according to a result of the vibration loading.

[0026] By using the optimization method of the damping arrangement provided in the embodiment, the formula fitting result and the simulation are effectively combined, and the simulation result is effectively used to guide the actual arrangement mode, so that an optimal damping arrangement mode is obtained, and the damping effect of the reactor device 10 is effectively improved. Therefore, by using the optimization method of the damping arrangement provided in the embodiment, the technical problem that the damping technology effect of the reactor device 10 in the prior art is poor can be solved.

[0027] Specifically, the combination of the fitting formula and the simulation analysis in the embodiment can mean that the fitting formula is loaded into the simulation analysis to realize the combination of the fitting formula and the simulation analysis, so that the accuracy of the simulation analysis is effectively improved, and thus it is convenient to effectively provide guiding opinions on the arrangement of the actual damping structure, and thus it is convenient to find an optimal damping structure arrangement mode.

[0028] In the embodiment, the vibration displacement response and the acceleration response of the reactor device 10 are collected, including: collecting the displacement response and the acceleration response of the body of the reactor device 10, the displacement response and the acceleration response of the structural beam below the reactor device 10, and the displacement response and the acceleration response of the square plate of the reactor device 10 by using the multi-point measurement method. In this way, the collection accuracy of the displacement response data and the acceleration response data can be effectively improved, and the test accuracy of the displacement response and the acceleration response of the whole reactor device 10 can be obtained by collecting the acceleration response and the displacement response of different parts of the reactor device 10, so that the fitting accuracy of the fitted vibration displacement response formula and the acceleration response formula can be improved.

[0029] Specifically, the vibration displacement response and the acceleration response of the reactor device 10 are collected in the embodiment, including: a plurality of groups of test points are arranged on the reactor device 10, each group of test points in the plurality of groups of test points includes two test points; wherein the two test points include a first test point and a second test point, the first test point is arranged below the reactor device 10, and the first test point is used to test the three-axis acceleration response of the structural beam and the square plate below the reactor device 10 in the X-axis, Y-axis and Z-axis directions; the second test point is arranged at the middle part of the reactor device 10, and the second test point is used to test the Z-axis acceleration response of the door hole and the structural beam of the reactor device 10. In this way, the test accuracy can be further improved, so that the fitting formula accuracy can be further improved, and accurate design basis can be provided for the initial layout of the damping structure.

[0030] In the embodiment, the collected vibration displacement response and the acceleration response of the reactor device 10 are fitted by using the sine superposition method, including: according to the test data collected by the multi-point measurement, the acceleration time history curve and the response spectrum are drawn; the maximum vibration displacement A of the reactor is selected, and the acceleration response of the reactor device 10 is obtained as:

[0031] .

[0032] In this way, the acceleration response of the reactor device 10 can be predicted by using the above acceleration response fitting formula. Wherein, a is the acceleration, f is the frequency, i is the number of test points, and n is the number of all test points.

[0033] Specifically, the collected vibration displacement response and the acceleration response of the reactor device 10 are fitted by using the sine superposition method, including: according to the test data collected by the multi-point measurement, the displacement time history curve and the response spectrum are drawn; the maximum vibration displacement A of the reactor is selected, and the vibration displacement response of the reactor device 10 is obtained as:

[0034] .

[0035] By using such a method, the displacement response of the reactor device 10 can be conveniently predicted by the displacement response fitting formula, so as to facilitate the initial layout of the damping structure of the reactor device 10. Wherein, x is displacement, f is frequency, i is the number of the measuring point, and n is the number of all measuring points.

[0036] In this embodiment, the reactor device 10 is simulated and modeled, including: using BEAM188 unit to simulate the beams and columns of the reactor device 10, using SOLID64 unit to simulate the body of the reactor device 10, and using SHELL63 unit to simulate the floor of the reactor device 10, so as to establish a finite element model. By using such a method, the simulation model of the reactor device 10 can be conveniently optimized, and the accuracy of the simulation result can be improved.

[0037] Specifically, the damping structure of the reactor device 10 in this embodiment includes a damping structure; the simulation modeling of the damping structure of the reactor device 10 further includes: using a spring damping unit COMBIN14 unit to simulate the damping structure; obtaining the first ten order mode shapes of the reactor device 10 through modal analysis; wherein, the first four order frequencies are the main frequencies of the damping structure, and the main frequencies of the damping structure are concentrated in 2.94~4.95Hz; the mode shapes after the seventh order are the frequencies of the deformation of the structural floor and wall, and the frequencies of the deformation of the structural floor and wall are greater than 8.15Hz. By using such a method, the simulation model of the damping structure can be conveniently optimized, and the accuracy of the simulation result can be improved.

[0038] In this embodiment, the optimization method of the damping arrangement further includes: using a cradle arrangement to optimize the damping of the reactor device 10. By using such a method, the damping effect of the reactor can be improved by using the cradle arrangement, and the vibration of the reactor can be reduced.

[0039] Specifically, using the cradle arrangement to optimize the damping of the reactor device 10 includes: supporting the reactor device 10 with a support frame 30, and arranging a first damper 21 below the support frame 30; and / or, arranging a second damper 22 between the support frame 30 and the reactor device 10; and / or, arranging a third damper 23 below the pipeline of the reactor device 10. By using such a structure, the vibration below the support frame 30 can be reduced by the first damper 21, the vibration between the reactor device 10 and the support frame 30 can be reduced by the second damper 22, and the shaking of the pipeline of the reactor device 10 can be reduced by the third damper 23, so as to conveniently effectively damp the support frame 30 and the reactor device 10 in the support frame 30. The specific damping structure arrangement is shown in Figure 1

[0040] ​Specifically, the cradle arrangement includes a support frame 30 and a damper. The support frame 30 has a receiving groove, and the reactor device 10 is placed in the receiving groove of the support frame 30. The second damper 22 is located between the inner wall of the receiving groove and the reactor device 10 to position the reactor device 10 and further reduce the vibration of the reactor device 10. Specifically, the first damper 21 is disposed below the overlapping part of the support frame 30 and between the support base.

[0041] In this embodiment, the arrangement of the vibration damping structure of the reactor device 10 is adjusted according to the vibration loading results, including adjusting the arrangement position and quantity of the vibration damping structure of the reactor device 10 according to the vibration loading results. Using this method, during actual simulation, the arrangement position and quantity of the dampers can be adaptively adjusted to further optimize the vibration damping arrangement.

[0042] This application mainly includes a multi-point measurement scheme for the vibration displacement of reactor equipment 10, an algorithm for fitting the vibration load equation of a 500kV high-voltage reactor, modeling of the foundation of the 500kV high-voltage reactor and reactor room equipment with multi-dimensional vibration isolation devices, and optimization principles for the layout of vibration reduction devices. By employing multi-point measurement, the acceleration response of the reactor equipment 10 body, the structural beams below the reactor equipment 10, and the square plate is collected. An algorithm for fitting the vibration load equation of a 500kV high-voltage reactor is proposed. Combined with ANSYS simulation software, a foundation model of the 500kV high-voltage reactor and reactor room equipment with multi-dimensional vibration isolation devices is established, obtaining the accurate displacement of the test points of the 500kV high-voltage reactor and reactor room. Based on the simulation results, an optimized layout scheme for the vibration reduction devices is further proposed. Specific details are as follows:

[0043] A Vibration Load Fitting Method for 500kV High-Voltage Parallel Reactor Equipment 10 Based on Multi-Point Measurement. This invention, based on the vibration mechanism of equipment within a substation and combined with on-site survey data, collects the displacement and acceleration responses of the reactor equipment 10 itself, the structural beams below the reactor equipment 10, and the square plate using multi-point measurement. The sinusoidal superposition method is then used to fit the vibration displacement and acceleration response curves of the 500kV high-voltage reactor, ultimately yielding a target model for fitting the vibration load of the 500kV reactor equipment 10.

[0044] A simulation model of the foundation layout of a 500kV high-voltage reactor and reactor room equipment, incorporating multi-dimensional vibration isolation devices, was proposed based on ANSYS simulation software. Using ANSYS, beams and columns were simulated using BEAM188 elements, equipment was simulated using SOLID64 solid elements, and floor slabs were simulated using SHELL63 elements. The concrete material was C40. A finite element model of the 500kV high-voltage reactor equipment 10 foundation vibration isolation was established. The support frame 30 is equipped with eight spring-hydraulic dampers, and the equipment support frame 30 below the pipeline is equipped with two spring-hydraulic dampers. Four spring-hydraulic dampers are arranged horizontally. The dampers were simulated using the COMBIN14 spring-damping element, and their stiffness and damping coefficient were selected based on the designed spring-hydraulic damper parameters. The first 10 vibration modes of the structure were obtained through modal analysis. The first four vibration modes are concentrated in the range of 2.94~4.95Hz, which are the main frequencies of the vibration isolator; the vibration modes after the seventh mode are the deformation of the structural floor slab and walls, with frequencies above 8.15Hz. Therefore, it can be seen that the vibration isolation system effectively reduces the frequency of the equipment system.

[0045] The vibration reduction arrangement method for a 500kV reactor device 10 employing a cradle-type support frame 30 with limiting mechanisms includes: installing spring-oil dampers on the cradle-type support frame 30 around the device, on the support frame 30 between the device's pipelines and the device below, and in the horizontal direction of the device. This increases the support height of the vibration isolators, making the device's center of mass and support points nearly coincident, reducing swaying motion caused by vibration, and enhancing the reliability of vibration control. Simultaneously, the limiting mechanism effectively controls the impact of earthquakes on the device in the horizontal direction, reducing the risk of device overturning.

[0046] In this embodiment, the location of the measuring points is determined based on the mechanism of vibration generated by equipment inside the substation and the site survey, in conjunction with the arrangement scheme of the reactor equipment 10. The following test scheme is adopted: three sets of tests are arranged near the reactor equipment 10, and two measuring points are arranged in each set of tests. Among them, measuring point 1 (corresponding to the first measuring point) tests the X, Y, and Z three-axis acceleration response of the structural beam and square plate below the reactor, and measuring point 2 (corresponding to the second measuring point) tests the Z-axis acceleration response of the reactor chamber door opening and the mid-span of the structural beam.

[0047] Based on test data, the vibration load fitting equation for the 500kV high-voltage parallel reactor equipment was determined. Acceleration time history curves and corresponding spectra were plotted according to the test data. Based on the reactor vibration characteristics obtained from analog tests and the vibration displacement test data of the 500kV high-voltage reactor, the maximum vibration displacement A of the reactor was selected, and the vertical vibration displacement response x = Asin(2πft) and acceleration response a = -A(2πf)²sin(2πft) of the 500kV high-voltage reactor were calculated. The horizontal vibration response of the 500kV high-voltage reactor was determined using the sinusoidal superposition method, that is, fitting the target model with sinusoidal waves of different frequencies and amplitudes.

[0048] , According to Ma + Cv + Kx = F(t), where M, C, and K are the system mass, damping, and stiffness, respectively, and a, v, and x are the system acceleration, velocity, and displacement, respectively, the force F(t) exerted by the reactor on the equipment base and transmitted to the floor is determined by the reactor equipment 10's mass, stiffness, damping, and vibration displacement, velocity, and acceleration. Since the reactor has a large mass and the influence of equipment damping and stiffness on actual operation vibration is small, the influence of damping and stiffness is ignored here. Therefore, the formula can be simplified to Ma = F(t), that is, the reactor vibration load can be obtained by multiplying the reactor vibration acceleration by the reactor's self-weight.

[0049] This paper presents a simulation model layout for a 500kV high-voltage reactor and reactor room equipment foundation without vibration isolation devices, based on ANSYS simulation software. This includes model analysis of the reactor equipment 10 and the reactor room without any vibration isolation measures. The finite element model of the reactor room, established using ANSYS software, employs BEAM188 elements to simulate beams and columns, SOLID64 solid elements to simulate the equipment, and SHELL63 elements to simulate the floor slab. The concrete material is C40. Modal analysis yields the first 10 vibration modes of the non-isolated model. The first six frequencies of the structure are concentrated between 10.18 and 13.78 Hz, primarily due to wall and floor slab deformation. Because the equipment is rigidly connected to the floor slab, the equipment mainly moves with the floor slab.

[0050] A model analysis was performed on a reactor device 10 and reactor chamber employing a cradle-type arrangement with limiting mechanisms as proposed in this invention. A finite element model of the 500kV high-voltage reactor device 10 foundation vibration isolation was established using ANSYS software. The model includes eight spring-hydraulic dampers installed on the cradle-type support frame 30 around the device, two spring-hydraulic dampers installed on the support frame 30 below the pipeline, and four spring-hydraulic dampers arranged horizontally. The dampers were simulated using the spring-dampening element COMBIN14, with their stiffness and damping coefficient selected based on the designed spring-hydraulic damper parameters. Modal analysis yielded the first 10 vibration modes of the cradle-type vibration isolation model. The first four modes are concentrated in the range of 3.28–5.17 Hz, representing the dominant frequencies of the vibration isolators. Modes after the seventh mode represent structural floor slab and wall deformation, with frequencies above 8.12 Hz. This demonstrates that the vibration isolation system effectively reduces the frequency of the equipment system.

[0051] Displacement analysis of the foundation of the 500kV high-voltage reactor and reactor room equipment. Based on the simulation results above, a comparative analysis of the vibration displacement of the beams, columns, and floor slabs of the 500kV high-voltage reactor and reactor room was conducted. The results show that the displacement of the measuring points of the pipeline, equipment, and floor slab is largest in the z-direction; the z-direction displacement amplitudes of the pipeline, the middle of the equipment, the bottom of the equipment, and the floor slab are 134.8μm, 185.6μm, 189.8μm, and 3.42μm, respectively; after vibration isolation, the floor slab displacement is significantly reduced. For the middle position of the 500kV high-voltage reactor equipment 10 with large displacement, a damper can be added, and the above steps can be repeated for simulation to obtain the vibration reduction device arrangement that meets the design requirements.

[0052] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects: a vibration load fitting method for 500kV high-voltage parallel reactor equipment based on multi-point measurement. Addressing the technical challenge of low accuracy and large errors in the equivalent model of high-voltage parallel reactors, this invention, based on the mechanism of vibration generation in substation equipment and combined with on-site surveys, collects the displacement and acceleration responses of the reactor equipment body, the structural beams below the reactor equipment, and the square plate using multi-point measurement. Using the sinusoidal superposition method, the vibration displacement and acceleration response curves of the 500kV high-voltage reactor are fitted, ultimately obtaining the target model for fitting the vibration load of the 500kV reactor equipment. A simulation modeling and analysis method for the foundation of a 500kV high-voltage reactor and reactor room equipment, including multi-dimensional vibration isolation devices, is proposed based on ANSYS simulation software. Using ANSYS simulation software, beams and columns were simulated using BEAM188 elements, the equipment was simulated using SOLID64 solid elements, and floor slabs were simulated using SHELL63 elements. The concrete material was C40. A finite element model of a 500kV high-voltage reactor foundation was established. Eight spring-hydraulic dampers were installed on the cradle-type support frame around the equipment, two spring-hydraulic dampers were installed on the equipment support frame below the pipeline, and four spring-hydraulic dampers were placed horizontally. The dampers were simulated using the COMBIN14 spring-hydraulic damping element, and their stiffness and damping coefficient were selected based on the designed spring-hydraulic damper parameters. By installing spring-hydraulic dampers on the cradle-type support frame around the equipment, on the equipment support frame below the pipeline, and in the horizontal direction, the support height of the vibration isolator was increased, making the equipment's center of mass and support points nearly coincident, reducing swaying motion caused by vibration and enhancing the reliability of vibration control. Simultaneously, the addition of a limiting mechanism effectively controlled the horizontal impact of earthquakes on the equipment, reducing the risk of equipment overturning.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0055] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0056] For ease of description, spatial relative terms such as “above,” “over,” “on the upper surface,” “above,” etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as “above” or “above” other devices or structures would subsequently be positioned as “below” or “under” other devices or structures. Thus, the exemplary term “above” can include both orientations of “above” and “below.” The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0057] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the responding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An optimization method for vibration damping arrangement, characterized in that, include: The vibration displacement response and acceleration response of the reactor equipment are collected, and the collected vibration displacement response and acceleration response of the reactor equipment are fitted using the sinusoidal superposition method to obtain the vibration displacement response formula and acceleration response formula of the reactor equipment. The reactor equipment is simulated and modeled to obtain a first simulation model; Combining the vibration response formula and the acceleration response formula of the reactor equipment, a preliminary layout of the vibration reduction structure of the reactor equipment is carried out, and the vibration reduction structure of the reactor equipment is simulated and modeled based on the first simulation model to obtain the second simulation model; Vibration loading is applied to the second simulation model, and the arrangement of the vibration reduction structure of the reactor equipment is adjusted according to the results of the vibration loading. Vibration reduction optimization of the reactor equipment using a cradle arrangement includes: supporting the reactor equipment with a support frame and placing a first damper below the support frame; and / or placing a second damper between the support frame and the reactor equipment; and / or placing a third damper below the pipeline of the reactor equipment; wherein the support frame has a receiving groove, the reactor equipment is placed in the receiving groove of the support frame, the second damper is located between the inner wall of the receiving groove and the reactor equipment, and the first damper is disposed below the overlap of the support frame and between the support base.

2. The method for optimizing vibration reduction arrangement according to claim 1, characterized in that, The vibration displacement response and acceleration response of the reactor equipment are collected, including: The displacement and acceleration responses of the reactor body, the structural beam below the reactor, and the square plate of the reactor were collected using a multi-point measurement method.

3. The method for optimizing the vibration reduction arrangement according to claim 2, characterized in that, The vibration displacement response and acceleration response of the reactor equipment are collected, including: Multiple sets of test points are provided on the reactor equipment, and each set of test points includes two test points. The two measuring points include a first measuring point and a second measuring point. The first measuring point is located below the reactor equipment and is used to test the triaxial acceleration response of the structural beams and square plates below the reactor equipment in the X, Y, and Z axis directions. The second measuring point is located in the middle of the reactor equipment and is used to test the Z-axis acceleration response of the door openings and structural beams of the reactor equipment.

4. The method for optimizing the vibration reduction arrangement according to claim 2, characterized in that, The vibration displacement response and acceleration response of the reactor equipment are fitted using the sinusoidal superposition method, including: Based on the test data collected from multiple measurements, plot the acceleration time history curve and the spectrum of the response; Selecting the maximum vibration displacement A of the reactor, the acceleration response of the reactor equipment is obtained as follows: ； Where a is the acceleration, f is the frequency, i is the nth measurement point, and n is the total number of measurement points.

5. The method for optimizing the vibration reduction arrangement according to claim 2, characterized in that, The vibration displacement response and acceleration response of the reactor equipment are fitted using the sinusoidal superposition method, including: Based on the test data collected from multiple measurements, the displacement time history curve and the response spectrum are plotted. Selecting the maximum vibration displacement A of the reactor, the vibration displacement response of the reactor equipment is obtained as follows: ； Where x is displacement, f is frequency, i is the nth measurement point, and n is the total number of measurement points.

6. The method for optimizing the vibration reduction arrangement according to claim 1, characterized in that, The simulation modeling of the reactor equipment includes: The beams and columns of the reactor equipment were simulated using BEAM188 elements, the body of the reactor equipment was simulated using SOLID64 solid elements, and the floor slab of the reactor equipment was simulated using SHELL63 elements to establish a finite element model.

7. The method for optimizing vibration reduction arrangement according to claim 3, characterized in that, The vibration reduction structure of the reactor equipment includes a damping structure; The simulation modeling of the vibration reduction structure of the reactor equipment also includes: The damping structure is simulated using a spring-damping unit COMBIN14. Modal analysis yielded the first ten mode shapes of the reactor device; the first four frequencies were the main frequencies of the damping structure, which were concentrated between 2.94 and 4.95 Hz; the mode shapes after the seventh were the frequencies of deformation of the structural floor slab and walls, which were greater than 8.15 Hz.

8. The method for optimizing the vibration reduction arrangement according to claim 1, characterized in that, The arrangement of the vibration reduction structure of the reactor equipment is adjusted according to the results of the vibration loading, including: The arrangement position and quantity of the vibration reduction structure of the reactor equipment are adjusted according to the results of the vibration loading.

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