Design support device and program

Abstract

To provide a technology for supporting design of a specification of a vibration control device.SOLUTION: A design support device supports design of a specification of a vibration control device for controlling vibration in a vertical direction of a floor of an architectural structure, and includes: acceptance means for accepting a design condition containing a target value of vibration control; selection means for comparing vibration characteristics for a plurality of types of combinations of arrangement of a plurality of vibration control devices on a structural skeleton of the floor and a specification of each vibration control device, and selecting one combination having an excellent vibration characteristic; determination means for determining whether the vibration characteristic of the combination selected by the selection means satisfies the target value; and provision means for providing information indicating the combination to a user when the vibration characteristic satisfies the target value. The vibration characteristic is specified by correcting a relation between an acceleration and a frequency obtained by a frequency response analysis on the basis of information indicating a relation between an acceleration and a frequency felt by a person.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a technology for supporting the design of a vibration control device to be installed in a floor structure. [Background technology]

[0002] There is known technology for damping structures using vibration damping devices (for example, Patent Document 1). In buildings, vertical vibrations in floors caused by people walking inside or vehicles traveling outside can be a problem. To counter such vibrations, a vibration damping device called a Tuned Mass Damper (TMD) is used. A vibration damping device such as a TMD is composed of a mass, a spring, and a damper, and can suppress floor vibrations by adjusting its natural frequency to be close to the natural frequency of the floor's structural frame. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2006-77812 A Summary of the Invention [Problem to be solved by the invention]

[0004] There are restrictions on where vibration control devices can be installed, and their heavy mass makes them inconvenient to install and transport. For this reason, floor vibrations are often suppressed using multiple vibration control devices of a size appropriate to the installation location, and several dozen units may be installed on one floor. The more units installed, the greater the vibration control effect can be expected, but this leads to increased costs. It is preferable to optimize the vibration control devices so that humans do not feel discomfort from the vibrations, but this is not easy.

[0005] An object of the present invention is to provide a technique for assisting in the design of specifications for a vibration damping device. [Means for solving the problem]

[0006] According to the present invention, A design support device that supports the design of specifications for a vibration control device that controls vertical vibration of a floor of a building, A receiving means for receiving design conditions including a target value of vibration suppression; a selection means for comparing vibration characteristics of a structural body on which a plurality of vibration damping devices are mounted for a plurality of combinations of the layout of the plurality of vibration damping devices on the structural body of the floor and the specifications of each of the vibration damping devices, and selecting one combination having superior vibration characteristics; a determination means for determining whether or not the vibration characteristic of the combination selected by the selection means satisfies the target value; providing means for providing a user with information indicating the combination when the determining means determines that the vibration characteristic satisfies the target value, The vibration characteristic is The relationship between the acceleration and the vibration frequency obtained by the frequency response analysis of the structural body on which the plurality of vibration damping devices are mounted is corrected based on information indicating the relationship between the acceleration and the vibration frequency felt by a human being. The present invention provides a design support device. Effect of the Invention

[0007] According to the present invention, a technique for supporting the design of specifications for a vibration damping device can be provided. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1(A) is a schematic diagram showing an example of a building to which the present invention can be applied, FIG. 1(B) is an explanatory diagram of the floor structure of the building in FIG. 1(A), and FIG. [Diagram 2] 1A is a block diagram of a design support apparatus according to an embodiment of the present invention, and FIG. 1B is a flowchart showing an example of processing performed by the design support apparatus. [Diagram 3] 1A is a flowchart showing an example of a design condition reception process, FIG. 1B is a schematic diagram of a structural body model, and FIG. 1C is a diagram showing an example of an analysis result of the structural body. [Figure 4] 11 is a flowchart showing an example of a combination selection process. [Diagram 5] (A) is a diagram showing examples of TMD placement candidates, and (B) is a diagram showing example combinations. [Figure 6] (A) is an explanatory diagram of how to set the tuned frequency when generating combinations, and (B) is an explanatory diagram of how to set the damping ratio when generating combinations. [Figure 7] 13(A) and (B) show examples of vibration characteristic data obtained by frequency response analysis of the structural body and TMD. [Figure 8] 1A is a diagram showing an example of correction values ​​based on human vibration sensation, and FIG. 1B is a diagram showing an example of data related to human vibration sensation. [Figure 9] FIG. 1 shows an example of correction of vibration characteristic data of the structural body and TMD, and (B) shows an example of target values. [Figure 10] (A) and (B) are explanatory diagrams of a method for generating individuals based on differential evolution. [Figure 11] (A) and (B) are explanatory diagrams of a method for generating individuals based on differential evolution. [Figure 12] FIG. [Figure 13] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described in detail with reference to the accompanying drawings. Note that the following embodiments do not limit the invention according to the claims, and not all combinations of features described in the embodiments are essential to the invention. Two or more features among the multiple features described in the embodiments may be arbitrarily combined. In addition, the same reference numbers are used for the same or similar configurations, and duplicated descriptions are omitted.

[0010] <Examples of buildings> 1(A) is a schematic diagram showing an example of a building 100 to which the present invention can be applied. In each drawing, arrow Z indicates the vertical direction, and arrows X and Y indicate horizontal directions that are perpendicular to each other.

[0011] The building 100 is an office building with a multi-story structure. In general, in such buildings, vertical vibrations can occur in the floors due to people walking inside the building and vehicles running on the surrounding roads. These vibrations can cause discomfort to people doing desk work in the building. To address this, vibration control devices are installed in the floor structure.

[0012] 1(B) is a diagram showing the floor structure of floor 101 of building 100. The floor structure has a structural body 110 including a slab 111, and a floor panel 120 is supported on the slab 111 via legs 121 to constitute an OA floor. The space between the slab 111 and the floor panel 120 is used as a wiring space and also as an arrangement space for multiple vibration control devices 130.

[0013] 1C is a schematic diagram of the vibration damping device 130. In this embodiment, the vibration damping device 130 is a tuned mass damper (TMD), and in the following description, the vibration damping device 130 may be referred to as the TMD 130. The TMD 130 has a weight 132 supported on a base 131 via a spring 133 and a damper 134. By appropriately designing the specifications of the TMD 130 (such as the tuned frequency and damping ratio) in accordance with the natural frequency of the structural body 110, it is possible to effectively damp the vertical vibration of the floor 101.

[0014] However, there are restrictions on where the TMD 130 can be installed. For example, in the example of FIG. 1B, the TMD 130 must be installed in the narrow space between the slab 111 and the floor panel 120 while avoiding the legs 121. Furthermore, if the weight 132 is heavy, it is inconvenient to install and transport it. For this reason, multiple TMDs 130 are often arranged in a row or matrix on the slab 111. The more TMDs 130 installed, the greater the vibration damping effect can be expected, but this leads to increased costs. It is desirable to be able to damp vibration with a smaller number of TMDs 130, but designing the specifications for each TMD 130 individually increases the design burden. In this embodiment, the design of the specifications for the TMD 130 is supported.

[0015] <Design support equipment> FIG. 2(A) is a block diagram of a design support device 1 according to an embodiment of the present invention. The design support device 1 can be realized by a computer system having the configuration shown in the figure, and can be realized by a general-purpose computer system. The design support device 1 includes a CPU 2 that executes a program described later, a ROM 3 that stores data and programs executed by the CPU 2, a RAM 4 that temporarily stores data and programs processed by the CPU 2, and a storage device 5 that stores programs such as an OS (operating system) and a program described later, a database (DB) of data used in calculations, data for a display screen, and the like. The storage device 5 is, for example, a hard disk. The program may be installed in the design support device 1 via a storage medium such as a CD-ROM.

[0016] The input device 6 is an input device such as a keyboard, a mouse, a touch panel, etc., through which instructions from the user are input. The display device 7 is a display device that displays the processing results, etc., of the CPU 2, and is a liquid crystal display device, etc. In this embodiment, information to be provided to the user is displayed and output by the display device 7, but other forms of information provision, such as recording output by a printer, or transmission output to another computer, may also be used.

[0017] In this embodiment, it is assumed that the design support device 1 is used in a stand-alone manner. However, by providing a communication I / F (interface) 8 such as a network interface, the design support device 1 can also be used as a server on a network system that executes design support processing based on contents input from a client computer in place of the input device 6.

[0018] <Design support processing> 2B is a flowchart showing an example of the design support process executed by the CPU 2. In this embodiment, the layout of the multiple TMDs 130 that can achieve the target value of floor vibration control set by the user and the combination of the specifications of each TMD 130 are optimized and provided to the user. The specifications of the TMDs 130 include the tuned frequency and the damping ratio.

[0019] In S1, input of design conditions by a user is accepted. The user inputs the design conditions from, for example, the input device 6. Alternatively, the user may specify a file in which the design conditions are described and instruct the file to be read. FIG. 3(A) is a flowchart showing an example of the design condition acceptance process in S1. In S11, a structural body 110 on which the TMD 130 is to be installed is modeled according to the user's instructions. As shown in FIG. 3(B), the structural body 110 is defined to include a slab 111, a plurality of columns 112 and beams 113 supporting the slab 111, and a bearing wall 114, and is modeled, for example, by the spectral element method using simultaneous linear equations as shown in Equation 1 in FIG. 12. Note that similar simultaneous linear equations can be formulated when modeling is performed using the finite element method other than the spectral element method.

[0020] In S12, a target value for vibration suppression of the floor by the multiple TMDs 130 is set by the user. In this embodiment, the target value is set to the maximum value of accelerance (vibration acceleration per unit excitation force). As an example, if the maximum accelerance of the structural body 110 before vibration suppression is 0.2 Gal / N, the target value is set to about 1 / 5 of that, that is, 0.04 Gal / N.

[0021] In S13, conditions common to the multiple TMDs 130 are set by the user. In this embodiment, as a condition for the TMDs 130, the mass of the weight 132 is common, and for example, a mass in the range of 30 to 40 kg is set in consideration of convenience in transportation and installation. Further conditions for the TMDs 130 include an initial number for analysis, a maximum value and a minimum value of the tuned frequency (tuned angular frequency), and a maximum value and a minimum value of the damping ratio. The user can set the initial number to, for example, a number smaller than the number of TMDs 130 predicted empirically.

[0022] The maximum and minimum values ​​of the tuning frequency and the damping ratio define the range within which they can be changed due to the structure of the TMD 130. For example, the range of the tuning frequency ω is 2π×3≦ω≦2π×20, and the range of the damping ratio ζ is 0.01≦ζ≦0.2. The maximum and minimum values ​​of the tuning frequency and the damping ratio may be common to all TMDs 130, or may be set individually. When set individually, they are defined by Equation 2 and Equation 3 in FIG. 12. The subscript "n" is a variable that identifies each TMD 130, and may correspond to, for example, the priority order of the installation locations of the TMDs 130, which will be described later with reference to FIG. 5(A).

[0023] Returning to FIG. 2B, in S2, an eigenmode analysis is performed on the structural body 110 (not including the TMD 13) modeled in S11. Specifically, the generalized eigenvalue problem (Equation 4 in FIG. 12) of Equation (1) in FIG. 12 is solved for the natural angular frequency ω s Solving for the rth natural angular frequency ω s,r and the corresponding eigenmode displacement φ r Fig. 3(C) is an image that visualizes the eigenmode displacement φr on the slab 111. The displacement is large in the positions where the colors are lighter.

[0024] In S3, candidates for the placement of the TMD 130 on the slab 111 are set. In this embodiment, the TMD 130 are placed in a matrix on the XY plane. The placement candidates are ranked in order of the location on the slab 111 with the largest displacement. FIG. 5(A) shows an example. In the illustrated example, candidates P for the placement of the TMD 130 are placed in a matrix. The candidates P are set to avoid the positions of the legs 121 that support the floor panel 120, and are set so that adjacent TMDs 130 do not overlap. For example, the X and Y pitches of the candidates P are 500 mm and 600 mm. The numbers in FIG. 5(A) indicate the priority of the candidates P. The highest priority (number 1) is set to the position with the largest displacement obtained by the eigenmode analysis of the structural body 110, and the subsequent priorities are set according to the distance from the position with the largest displacement.

[0025] Returning to FIG. 2(B), in S4, a combination selection process is performed. Here, for multiple combinations of the arrangement of multiple TMDs 130 on the slab 111 and the specifications of each TMD 130, the vibration characteristics of the structural body 110 on which the multiple TMDs 130 are mounted are compared, and one combination with superior vibration characteristics is selected. FIG. 4 is a flowchart showing an example of the combination selection process in S4. In this embodiment, combinations are generated by a differential evolution method, and one combination with superior vibration characteristics is selected. This allows the specifications of each TMD 130 to be optimized. Note that, although the differential evolution method is used in this embodiment, other evolutionary calculation methods or mathematical optimization methods may also be used.

[0026] In S21, the placement of each TMD 130 on the slab 111, for which the initial number was set in S13, is determined. The placement of each TMD 130 is determined according to the priority order of the placement candidates shown in Fig. 5(A). For example, when the initial number is eight, analysis is performed assuming that the TMD 130 is installed in each of the candidates P, numbered 1 to 8, in Fig. 5(A).

[0027] In S22 of FIG. 4, a combination of the first generation is generated. FIG. 5(B) is an explanatory diagram showing an example of the combination. In this embodiment, there are four types of combinations (individuals x1 to x4) per generation. Each individual is information in which an "installation position" indicating the arrangement of each TMD 130 on the slab 111 is linked to a tuning frequency ω and a damping ratio ζ, which are specifications of the TMD 130. The "installation position" number (1 to N) corresponds to the priority of the candidate P illustrated in FIG. 5(A), and when the "installation position" is "1", it means that the TMD 130 is installed at the position with the first priority in the example of FIG. 5(A). Each individual indicates the specifications of N TMDs 130, and the initial value of N is the initial number set in S13. The subscript of the tuning frequency ω indicates the individual number and installation position of the TMD 130. For example, ω 1,1 means that the tuning frequency of the TMD130 whose individual number is x1 and whose “installation position” is “1.” The same is true for the damping ratio ζ.

[0028] The initial values ​​of the tuned frequency ω and damping ratio ζ of each individual x are determined within the ranges of the maximum and minimum values ​​of the tuned frequency and the maximum and minimum values ​​of the damping ratio set in S13. s,r Therefore, for each individual x, the initial value of each tuning frequency ω of that individual x is the average value ω s,r Alternatively, the initial value of the damping ratio ζ may be determined for each individual x by uniform random numbers such that the probability density function is as shown in FIG.

[0029] In S23 of FIG. 4, for each individual x generated in S22, a frequency response analysis is performed on the structural body 110 equipped with the initial number of TMDs 130, and the acceleration is calculated as the vibration characteristic. The equation for the structural body 110 equipped with the TMDs 130 is expressed as Equation 5 of FIG. 12 by adding the requirements for the TMDs 130 to Equation 1 of FIG. 12. In Equation 5, K ts and K. st is a matrix representing the coupling between the structural body 110 and the TMD 130, and K st is K ts It is equal to the transpose of the matrix.

[0030] In Equation 5 of Figure 12, M t , K t , K ts and K st varies depending on the specifications of TMD130, but the matrix of the structural body 110, M s , K s is not affected by the specifications of TMD 130. Therefore, in order to improve the efficiency of the analysis, the frequency response analysis is performed by a substructure synthesis method in which structural body 110 and TMD 130 are divided, and the frequency response analysis of structural body 110 is performed only once.

[0031] By constructing the transformation matrix T as shown in Equation 6 in Fig. 12, expressing the vibration displacement vector as shown in Equation 7, and multiplying both sides of Equation 5 by the transpose of the transformation matrix T from the left, the simultaneous equations shown in Equation 8 can be obtained. The degrees of freedom of Equation 1 in Fig. 12 are generally several thousand degrees of freedom or more, and in some cases may be several million degrees of freedom, but the degrees of freedom of Equation 8, which considers only the target eigenmode, are at most several tens. By solving this equation while changing the angular frequency ω, the modal displacement vector q r The frequency response function (compliance) G(ω) shown in FIG. 7A can be obtained by calculating the vibration displacement vector us and substituting it into Equation 8. Furthermore, by adding ω 2 By multiplying the frequency response function of the vibration acceleration shown in FIG. 7(B), that is, the acceleration (ω 2 G(ω) can be obtained.

[0032] Incidentally, the frequency response function obtained here does not take into account human vibration sensation. Human vibration sensation is not constant regardless of the frequency of vertical vibration, and sensitivity differs depending on the frequency. Therefore, in S24 of Fig. 4, the acceleration, which is the vibration characteristic obtained in S23, is corrected based on vibration sensation information that indicates the relationship between the acceleration and vibration frequency felt by humans. Fig. 8(A) shows an example of vibration sensation information, showing the change in vibration sensation correction value C(ω) with respect to the vibration frequency. Equation 9 in Fig. 13 expresses the vibration sensation correction value C(ω) in mathematical form.

[0033] The vibration sensation correction value C(ω) increases with increasing vibration frequency, with the boundary at around 8 Hz. This tendency is also shown, for example, in the "Criteria and Commentary for Evaluating Habitability Performance of Buildings" published by the Architectural Institute of Japan. Figure 8(B) shows an evaluation curve based on the same criteria. The curve in Figure 8(B) is based on the idea that human sensitivity to vertical vibration corresponds to vibration acceleration from 3 Hz to 8 Hz, and vibration velocity from 8 Hz to 30 Hz, and shows the vibration acceleration values ​​that are felt to be the same for each vibration frequency. This means that the degree of annoyance and discomfort increases from curve a to curve f.

[0034] In S24 of Fig. 4, the accelerance obtained in S23 is corrected taking into account the human sense of vibration. Specifically, the corrected accelerance = ω 2 The objective function g, which uses the individual x as a variable, is the maximum value of the corrected acceleration, expressed by equation 10 in Fig. 13. The value of the objective function g, which uses the individual x as a variable, is stored in correspondence with the individuals x1 to x4.

[0035] S25 to S30 in Fig. 4 are processes for generating and optimizing the next-generation individual x by evolutionary computation, particularly the differential evolution method. The next-generation individual x is generated by performing operations such as mutation, crossover, and selection of the individual x based on the algorithm of the differential evolution method.

[0036] In S25, a child individual z is generated. FIG. 10(A) and FIG. 10(B) are explanatory diagrams. A child individual z is generated for each individual x1 to x4 of the current generation, and the child individuals z corresponding to the individuals x1 to x4 are called child individuals z1 to z4. The child individual z is generated from the parent individual x and three other individuals x(a to c) selected at random by z=F(ab)+c (mutation). F is a coefficient that determines the search range for the optimal solution, and takes a value between 0 and 2. The larger the value of F, the wider the design space is, and the smaller the value, the narrower the search. In the example of FIG. 10(A) and FIG. 10(B), a=x3, b=x4, and c=x2 are set when generating z1 as a child individual of the individual x1. By performing the above mutation on each of the individuals x1 to x4, child individuals z1 to z4 are obtained.

[0037] In S26 of FIG. 4, an individual y, which is a candidate for an individual of the next generation, is generated from a parent individual x and a child individual z (crossover). FIG. 11(A) is an explanatory diagram thereof. An individual y1 is generated from an individual x1 and a child individual z1. The same is true for individuals y2 to y4. The 2×N parameters (synchronization frequency ω and vibration ratio ζ) of the individual y1 are selected from the synchronization frequency ω and vibration ratio ζ of the individual x1, or the synchronization frequency ω and vibration ratio ζ of the individual z1.

[0038] The selection is performed by generating a random number r (0≦r≦1) for each parameter and comparing it with a predetermined value: CR. If the random number r is equal to or greater than CR, the parameter of the individual x1 is selected, and if the random number r is less than CR, the parameter of the individual z1 is selected. This selection is performed for all 2×N parameters of the individual y1. In the example of FIG. 11(A), the parameter of the individual x1 is selected as the first parameter from the top of the individual y1 (the tuned frequency of the TMD 130 installed at position "1"). Also, the parameter of the individual z1 is selected as the second parameter from the top of the individual y1 (the damping ratio of the TMD 130 installed at position "2"). The same applies below. In this way, the next generation candidate individuals y1 to y4 are generated.

[0039] 4 is a process of calculating the objective function g (Equation 10) for each of the candidate individuals y1 to y4, and is the same as the process of S23 and S24. During this calculation, the amount of calculation can be reduced by using a substructure synthesis method in which the structural body 110 and the TMD 130 are divided.

[0040] In S29 of FIG. 4, the values ​​of the objective function g for the individuals x1 to x4 are compared with the values ​​of the objective function g for the candidate individuals y1 to y4 to determine the individuals x1 to x4 of the next generation. Here, the individuals with the superior value of the objective function g are selected as the individuals of the next generation. FIG. 11(B) is an explanatory diagram, and in the example of the figure, if the objective function value g(x1) for the individual x1 is equal to or less than the objective function value g(y1) for the candidate individual y1, the individual x1 of the current generation is selected as the individual x1 of the next generation, and if the objective function value g(y1) for the candidate individual y1 is smaller than the objective function value g(x1) for the individual x1, the candidate individual y1 is selected as the individual x1 of the next generation. The individuals x2 to x4 of the next generation are selected in the same manner. As a result, it is possible to obtain more superior individuals as the generations progress. The parameters of the individuals x1 to x4 of the next generation are stored in association with the objective function g.

[0041] In S30 in FIG. 4, it is determined whether or not the termination condition of the evolutionary computation is satisfied. If the termination condition is satisfied, the process proceeds to S31, and if the termination condition is not satisfied, the process returns to S25 to repeat the same process. An example of the termination condition is that the coefficient of variation CV defined by equations 11 to 13 in FIG. 13 is equal to or less than a certain value (for example, 1%). The coefficient of variation CV is a normalized value obtained by dividing the standard deviation by the average value, and represents the variation of parameters (tuned frequency and damping ratio). If the termination condition is satisfied, it can be said that no further improvement in the objective function g can be expected even if the generation of individuals is repeated.

[0042] In S31, an optimal solution is selected from among the individuals x1 to x4. Here, the individual with the smallest objective function g is selected as the optimal solution. This completes the combination selection process.

[0043] Returning to FIG. 2(B), in S5, it is determined whether the objective function g of the combination of the placement and specifications of the TMD 130, which is the optimal solution selected in S31, satisfies the target value. If it does, proceed to S7, and if it does not, proceed to S6. FIG. 9(B) shows a comparison example between the objective function g of the optimal solution and the target value. If the target value is set to TH1, in the illustrated example, the maximum value of the acceleration is below TH1, so the optimization satisfies the target value. On the other hand, if the target value is set to TH2, in the illustrated example, the maximum value of the acceleration is above TH2, so the optimization does not satisfy the target value.

[0044] 2B, it is determined that it is difficult to meet the target value with the current number of TMDs 130, and the number of TMDs 130 is increased, for example, by 1. Then, the process returns to S4 and the same process is repeated.

[0045] 2B, information on the number of TMDs 130 that have achieved the target value, and the combination of their arrangement and specifications is provided to the user. As described above, the information is provided by displaying it on the display device 7, but other forms of information may also be provided, such as recording it on a printer or transmitting it to another computer. This completes the process.

[0046] According to this embodiment, by simply setting design conditions, the user can obtain information on the number and specifications of TMDs 130 that can achieve the target value, and can use this information to tune the TMDs 130 in each arrangement. In addition, the minimum number of TMDs 130 required can be identified, and an excessive number of TMDs 130 can be avoided. In this way, this embodiment can assist the user in designing the specifications of the vibration control device.

[0047] <Other embodiments> In the above embodiment, the specifications (tuned frequency and vibration ratio) of all the TMDs 130 are set individually, but the TMDs 130 may be grouped by a predetermined number of units, and the same specifications may be applied to the TMDs 130 in the same group. For example, when grouping by 4 units, if 12 TMDs 130 are installed, the TMDs 130 are grouped into three groups, and the same specifications are applied to the TMDs 130 in the same group. When grouping by 4 units, if 14 TMDs 130 are installed, the TMDs 130 are grouped into four groups (4 units, 4 units, 4 units, 2 units), and the same specifications are applied to the TMDs 130 in the same group. The grouping may be performed in the order of priority of the installation locations of the TMDs 130 illustrated in FIG. 5(A). For example, if 12 TMD130 units are to be installed in groups of four, the units can be divided into three groups based on the priority of installation locations: a group of 1 to 4, a group of 5 to 8, and a group of 9 to 12.

[0048] Although the embodiment of the invention has been described above, the invention is not limited to the above embodiment, and various modifications and variations are possible within the scope of the gist of the invention. [Explanation of symbols]

[0049] 1 Design support device, 100 Building, 110 Structural body, 130 Vibration control device

Claims

1. A design support device that supports the design of specifications for a vibration control device that controls vertical vibration of a floor of a building, A receiving means for receiving design conditions including a target value of vibration suppression; a selection means for comparing vibration characteristics of the structural body on which the plurality of vibration damping devices are mounted for a plurality of combinations of the layout of the plurality of vibration damping devices on the structural body of the floor and the specifications of each of the vibration damping devices, and selecting one combination having superior vibration characteristics; a determination means for determining whether or not the vibration characteristic of the combination selected by the selection means satisfies the target value; providing means for providing a user with information indicating the combination when the determining means determines that the vibration characteristic satisfies the target value, The vibration characteristic is The relationship between the acceleration and the vibration frequency obtained by the frequency response analysis of the structural body on which the plurality of vibration damping devices are mounted is corrected based on information indicating the relationship between the acceleration and the vibration frequency felt by a human being. A design support device comprising:

2. The design support device according to claim 1 , The specifications are a tuned frequency and a damping ratio of the vibration damping device, When the determining means determines that the vibration characteristic does not satisfy the target value, the number of vibration damping devices is increased, and the selection by the selecting means and the determination by the determining means are performed again. A design support device comprising:

3. The design support device according to claim 1 or 2, The selection means generates the combinations by a differential evolution method and selects the one combination. A design support device comprising:

4. The design support device according to any one of claims 1 to 3, The frequency response analysis is performed by a substructure synthesis method in which the structural body and the vibration damping device are divided. A design support device comprising:

5. A computer is provided to assist in the design of a vibration control device for controlling vertical vibration of a floor of a building. A receiving means for receiving design conditions including a target value of vibration damping; a selection means for comparing vibration characteristics of a structural body on which a plurality of vibration damping devices are mounted for a plurality of combinations of the layout of a plurality of vibration damping devices on a structural body of a floor and the specifications of each vibration damping device, and selecting one combination having superior vibration characteristics; a determination means for determining whether or not the vibration characteristic of the combination selected by the selection means satisfies the target value; a program that functions as a providing means for providing information indicating the combination to a user when the determining means determines that the vibration characteristic satisfies the target value, The vibration characteristic is The relationship between the acceleration and the vibration frequency obtained by the frequency response analysis of the structural body on which the plurality of vibration damping devices are mounted is corrected based on information indicating the relationship between the acceleration and the vibration frequency felt by a human being. A program characterized by:

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