Universal simulation method and system for hysteresis behavior of asynchronous two-stage energy dissipation and vibration reduction device

Abstract

The present invention provides a universal simulation method and system for the hysteretic behavior of asynchronous two-stage energy dissipation and shock absorption devices. It proposes a restoring force model for asynchronously activated two-stage energy dissipation and shock absorption devices, enabling effective analysis of the seismic response of structures equipped with parallel two-stage energy dissipation and shock absorption devices. It also proposes two theoretical calculation methods for the performance parameters of asynchronously activated two-stage energy dissipation and shock absorption devices, facilitating the in-depth design of production-oriented asynchronous two-stage energy dissipation and shock absorption devices. The embodiments of the present invention can predict the damping force based on the damper structure, effectively simulating the operating process of the asynchronously activated two-stage energy dissipation and shock absorption device and the damping force-displacement hysteresis curve under different position changes, thereby optimizing the damping force calculation method for the asynchronously activated two-stage energy dissipation and shock absorption device.

Description

Technical Field

[0001] The present invention relates to the technical field of structural engineering, and in particular to a universal simulation method and system for hysteresis behavior of an asynchronous double-stage energy dissipation and vibration reduction device. Background Art

[0002] Earthquakes, as extremely destructive and unpredictable natural disasters, pose a significant threat to human life and property. Energy-dissipating shock absorption technology, with its superior energy dissipation performance and widespread application in practical engineering, has become a crucial tool for modern earthquake resistance. Energy-dissipating shock absorption technology involves installing energy-dissipating (damping) devices in certain structural locations (such as supports, shear walls, joints, or connecting components). These devices enter an energy-dissipating operating state before the main structure enters an inelastic state. These devices dissipate energy or absorb seismic input energy through friction, bending (or shear, torsion), and elastoplastic (or viscoelastic) hysteretic deformation, thereby reducing the structural response.

[0003] Traditional vibration damping devices typically include buckling-restrained braces, buckling-resistance steel plate walls, friction dampers, and metal dampers. These devices can provide both lateral stiffness and damping to the structure. However, these devices cannot meet higher demands. Therefore, an asynchronously activated two-stage energy dissipation vibration damping device has been proposed, including a metal yield-type asynchronous two-stage damper and a friction-metal combination asynchronous two-stage damper.

[0004] The asynchronously activated two-stage energy dissipation and vibration reduction device consists of two dampers and an asynchronous activation system. In the first stage, only the first-order damper operates, similar to a traditional vibration reduction device. When the deformation displacement reaches the second-order activation displacement, the second-order damper begins to bear force and exerts its energy dissipation and vibration reduction function. At this point, the stiffness and load-bearing capacity of the asynchronously activated two-stage energy dissipation and vibration reduction device are equal to the sum of the two dampers.

[0005] The macroscopic numerical model of the damper is the basis for conducting seismic response analysis of the structural system. The following issues remain to be addressed regarding the asynchronously activated two-stage energy dissipation and vibration reduction device:

[0006] (1) The lack of a resilience model makes it difficult to conduct structural seismic response analysis;

[0007] (2) The lack of theoretical calculation methods for performance parameters makes it difficult to carry out in-depth design for actual production. Summary of the Invention

[0008] To address the above issues, an embodiment of the present invention provides a universal simulation method for the hysteretic behavior of an asynchronous two-stage energy dissipation and vibration reduction device. The method is applied to a metal yield type asynchronous two-stage damper, which includes a first sub-damper and a second sub-damper. The method includes:

[0009] Obtaining parameters of the metal yield type asynchronous double-order damper;

[0010] when , the damping force of the metal yield type asynchronous double-stage damper satisfies the following formula:

[0011]

[0012] in, is the displacement and force of the metal yield type asynchronous two-stage damper; is the initial stiffness of the first sub-damper; is the yield force of the first sub-damper; is the shape parameter of the first sub-damper; is the second-order starting displacement;

[0013] when , the force on the first sub-damper alone satisfies the following formula:

[0014]

[0015] The force on the second sub-damper alone satisfies the following formula:

[0016]

[0017] The damping force of the metal yield type asynchronous double-stage damper is: ;

[0018] in, is the initial stiffness of the second sub-damper; is the yield force of the second sub-damper; is the maximum axial deformation; is the shape parameter of the second sub-damper; is the force of the first sub-damper, is the force of the second sub-damper.

[0019] Optionally, when , the damping force of the metal yield type asynchronous double-stage damper satisfies the following formula:

[0020] The force on the first sub-damper alone is:

[0021]

[0022] The force on the second sub-damper alone is

[0023]

[0024] The damping force of the metal yield type asynchronous double-stage damper is ;

[0025] in, is the initial stiffness of the second sub-damper; is the force and displacement of the turning point; is the force at point B; is the yield force of the second sub-damper; is a breaking point, when the second sub-damper reaches the breaking point, it stops working; is the force of the first sub-damper, is the force of the second sub-damper;

[0026] when , is the unloading completion point, and the damping force of the metal yield type asynchronous two-stage damper is .

[0027] Optionally, the method further includes: drawing a skeleton curve and an unloading curve according to a damping force calculation formula of the metal yield type asynchronous double-order damper.

[0028] Optionally, the method further includes: designing performance parameters of the metal yield type asynchronous two-stage damper according to a damping force calculation formula of the metal yield type asynchronous two-stage damper and a shock absorption requirement.

[0029] An embodiment of the present invention provides a universal simulation method for the hysteretic behavior of an asynchronous two-stage energy dissipation and vibration reduction device, which is applied to a friction-metal composite asynchronous two-stage damper. The friction-metal composite asynchronous two-stage damper includes a first friction sub-damper and a second metal sub-damper. The method includes:

[0030] Obtaining parameters of the friction metal combined asynchronous double-stage damper;

[0031] when , the damping force of the friction metal combined asynchronous double-stage damper satisfies the following formula:

[0032]

[0033] in, The displacement and force of the friction metal composite asynchronous two-stage damper; is the initial stiffness of the first friction sub-damper; is the displacement when the load increases to the yield force of the first friction sub-damper;

[0034] when , the damping force of the friction metal combined asynchronous double-stage damper satisfies the following formula:

[0035]

[0036] in, is the yield force of the first friction damper; is the second-order starting displacement;

[0037] when ,

[0038] The force on the first friction damper alone is: ;

[0039] The force on the second metal sub-damper alone is:

[0040]

[0041] in, is the initial stiffness of the second sub-damper; is the yield force of the second sub-damper; is the second-order starting displacement; is the maximum axial deformation; is the shape parameter of the second sub-damper;

[0042] The damping force of the friction metal combined asynchronous double-stage damper is: .

[0043] Optionally, when , the damping force of the friction metal combined asynchronous double-stage damper satisfies the following formula:

[0044] The force on the first friction damper alone is:

[0045] ,when hour, ;

[0046] The force on the second metal damper alone is

[0047]

[0048] in, is the initial stiffness of the second metal sub-damper; is the force and displacement of the turning point; is the force at point B; is the yield force of the second metal sub-damper; is a breaking point, when the second metal sub-damper reaches the breaking point, it stops working; is the force of the first friction damper, is the force of the second metal sub-damper;

[0049] The damping force of the friction metal combined asynchronous double-stage damper is ;

[0050] when , is the unloading completion point, and the damping force of the friction metal combined asynchronous two-stage damper is .

[0051] Optionally, the method further includes: drawing a skeleton curve and an unloading curve according to a damping force calculation formula of the friction metal combined asynchronous double-stage damper.

[0052] Optionally, the method further includes: designing performance parameters of the friction metal combination type asynchronous two-stage damper according to a damping force calculation formula and shock absorption requirements of the friction metal combination type asynchronous two-stage damper.

[0053] An embodiment of the present invention provides a universal simulation system for the hysteresis behavior of an asynchronous two-order energy dissipation and shock absorption device, which is applied to a metal yield type asynchronous two-order damper. The metal yield type asynchronous two-order damper includes a first sub-damper and a second sub-damper. The system is used to execute the above method.

[0054] An embodiment of the present invention provides a universal simulation system for the hysteresis behavior of an asynchronous two-stage energy dissipation and shock absorption device, which is applied to a friction metal combination asynchronous two-stage damper. The friction metal combination asynchronous two-stage damper includes a first friction sub-damper and a second metal sub-damper. The system is used to execute the above method.

[0055] The embodiments of the present invention provide a general simulation method and system for the hysteretic behavior of an asynchronous two-stage energy dissipation and shock absorption device, and propose a restoring force model of an asynchronously started two-stage energy dissipation and shock absorption device, which can effectively carry out structural seismic response analysis with the addition of a parallel two-stage energy dissipation and shock absorption device; and propose two theoretical calculation methods for the performance parameters of asynchronously started two-stage energy dissipation and shock absorption devices, which are conducive to the in-depth design of asynchronously started two-stage energy dissipation and shock absorption devices for production. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0057] Figure 1 The skeleton curve of the metal yield type asynchronous double-order damper provided in the embodiment of the present invention;

[0058] Figure 2 The hysteresis curve of the metal yield type asynchronous double-order damper provided in the embodiment of the present invention;

[0059] Figure 3 A flowchart of the algorithm for the metal yield type asynchronous double-order damper provided in an embodiment of the present invention;

[0060] Figure 4 Comparative test and theoretical calculated load-deformation curves of PDYBRB1 and PDYBRB2 provided in the embodiments of the present invention;

[0061] Figure 5 Comparative test and theoretical calculated load-deformation curves of PDCSD1 and PDCSD2 provided in the embodiment of the present invention;

[0062] Figure 6 Comparative test and theoretical calculated load-deformation curves of PDSPD1 and PDSPD2 provided in the embodiment of the present invention;

[0063] Figure 7 The skeleton curve of the friction metal combined asynchronous double-stage damper provided in the embodiment of the present invention;

[0064] Figure 8 Hysteresis curve of the friction metal combined asynchronous double-stage damper provided in an embodiment of the present invention;

[0065] Figure 9 An algorithm flow chart of a friction metal combined asynchronous double-stage damper provided by an embodiment of the present invention;

[0066] Figure 10 The experimental and theoretically calculated load-deformation curves of APDFMD1, APDFMD2, and APDFMD3 provided in the embodiments of the present invention. DETAILED DESCRIPTION

[0067] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following detailed description of the specific embodiments of the present invention is given in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0068] In a metal yield-type asynchronous two-stage damper, the two-stage core plates do not always work together. After the deformation reaches the preset displacement, some core plates start asynchronously, thus forming a two-stage force characteristic of the support structure. In the initial stage of the support, only the first core plate is subjected to force. Similar to traditional metal yield-type dampers, when the deformation of the first core plate reaches the specified deformation, the force transmission bolt contacts the wall of the oblong hole, driving the second core plate to cooperate with the force and play an energy dissipation and shock absorption role. At this time, the stiffness and bearing capacity are the sum of the two core plates, and the entire force-bearing process presents a force characteristic with two different stages.

[0069] In the first operating phase of the friction-metal composite asynchronous two-stage damper, only the friction unit operates independently, similar to a traditional friction damper. The force-transmitting bolt slides freely in the oblong hole, and the asynchronously activated metal unit is unloaded. In the second operating phase, after the deformation reaches the preset displacement, the asynchronously activated metal unit activates, and the force-transmitting bolt contacts the oblong hole wall, causing the steel seam plate to deform. At this point, the asynchronously activated metal unit begins to bear load, with the stiffness and strength equal to the sum of the two units. The entire load-bearing process exhibits a load-bearing characteristic with two distinct stages.

[0070] The embodiments of the present invention aim to solve two problems in the prior art: the lack of a restoring force model for asynchronously started two-stage energy dissipation and shock absorption devices (metal yield type asynchronous two-stage dampers, friction metal combination type asynchronous two-stage dampers), the difficulty in conducting structural seismic response analysis, and the lack of theoretical calculation methods for production design.

[0071] First, to address the first issue (the calculation formula for the asynchronously started two-stage energy dissipation and shock absorption device is unclear, making it impossible to accurately calculate the stress based on the structure of the device), the present invention proposes a method for predicting the hysteresis behavior of the asynchronously started two-stage energy dissipation and shock absorption device and establishes a restoring force model for the asynchronously started two-stage energy dissipation and shock absorption device. This method solves the problem of studying the mechanical properties of the asynchronously started two-stage energy dissipation and shock absorption device and can effectively predict the stress of the asynchronously started two-stage energy dissipation and shock absorption device. It is applicable to various energy dissipation and shock absorption structural systems.

[0072] Secondly, in response to the second problem, the embodiments of the present invention propose two theoretical calculation methods for the performance parameters of asynchronously started two-stage energy dissipation and shock absorption devices, which can be further designed according to the performance parameters of the asynchronously started two-stage energy dissipation and shock absorption devices required by the building structure to adapt to the energy dissipation and shock absorption performance requirements of the building structure in different stress stages.

[0073] The embodiment of the present invention uses the structural features of two asynchronously started double-stage energy dissipation and shock absorption devices to calculate the stress of the shock absorption devices when they are in different working states.

[0074] As a feasible implementation method, an embodiment of the present invention provides a theoretical calculation method for the performance parameters of a metal yield type asynchronous two-order damper, performs stress prediction on the four working stages of the existing metal yield type asynchronous two-order damper, provides a stress prediction formula based on the device structure, solves the problem of studying the mechanical properties of the metal yield type asynchronous two-order damper, and can effectively predict the restoring force model of the metal yield type asynchronous two-order damper. Figure 1 shows the skeleton curve of the metal yield type asynchronous double-stage damper provided by the embodiment of the present invention, Figure 2 The hysteresis curve of the metal yield type asynchronous double-order damper provided by the embodiment of the present invention is shown.

[0075] Skeleton curve:

[0076] (1) When : Indicates that only the first sub-damper of the metal yield-type asynchronous two-stage damper is operating. When the load increases to the yield point of the first sub-damper, point A on the skeleton curve is reached. At this point, only the first sub-damper provides stiffness and load-bearing capacity, the asynchronous force transmission system is not activated, and the deformation of the second sub-damper is zero. When the axial deformation reaches point B on the skeleton curve, although the deformation of the second core plate remains zero, it is about to start.

[0077] At this time, the damping force of the metal yield type asynchronous two-stage damper is:

[0078]

[0079] in, is the displacement and force of the metal yield type asynchronous two-stage damper; is the initial stiffness of the first sub-damper; is the yield force of the first sub-damper; is the shape parameter of the first sub-damper.

[0080] (2) When : Indicates that the second sub-damper of the metal yield type asynchronous two-stage damper is activated, and the two sub-damper work in parallel. The first sub-damper continues to consume energy, and the second sub-damper provides stiffness and bearing capacity. When the second sub-damper yields, the force on the support reaches point C in the skeleton curve until the support reaches the maximum axial deformation. .

[0081] At this time, the force on the first sub-damper alone is:

[0082]

[0083] The force on the second sub-damper alone is:

[0084]

[0085] in, is the initial stiffness of the second sub-damper; is the yield force of the second sub-damper; is the displacement of point B, i.e. the second-order starting displacement; is the shape parameter of the second sub-damper.

[0086] Then the damping force of the metal yield type asynchronous two-stage damper is: .

[0087] Unloading curve:

[0088] Under repeated loads, when the steel yields in one direction and is unloaded to zero and then loaded in the reverse direction, that is, when The first and second sub-damper work together to unload together. When the inflection point E is reached, the second sub-damper stops working.

[0089] At this time, the force acting on the first sub-damper alone is:

[0090]

[0091] The force on the second sub-damper alone is

[0092]

[0093] Where, is the initial stiffness of the second sub-damper; is the force and displacement of the turning point; is the force at point B; is the yield force of the second sub-damper.

[0094] Therefore, the damping force of the metal yield type asynchronous two-stage damper is .

[0095] when , indicating that the second sub-damper of the metal yield type asynchronous two-stage damper stops working, and only the first sub-damper is unloaded. When it reaches point F, the unloading is completed.

[0096] At this time, the damping force of the metal yield type asynchronous two-stage damper is .

[0097] Figure 3 The flowchart of the metal yield type asynchronous double-order damper algorithm provided by an embodiment of the present invention is shown. The algorithm includes the following steps:

[0098] First, the parameters of the metal yield type asynchronous two-stage damper are obtained.

[0099] Then, determine whether to use the skeleton curve or the unloading curve.

[0100] Use the skeleton curve to determine whether If so, use the formula If not, further determine whether If the answer is yes, use the formula .

[0101] Use the unloading curve to determine whether If so, use the formula If not, further determine whether If the answer is yes, use the formula .

[0102] The characteristics and performance of the damping force prediction method of the metal yield type asynchronous double-stage damper in the present invention are further described in detail below with reference to the embodiments:

[0103] Example 1:

[0104] The loads of three types of metal yield-type asynchronous two-stage dampers under axial loading need to be predicted: the asynchronous two-stage buckling-restrained brace (PDYBRB), the asynchronous two-stage shear damper (PDCSD), and the asynchronous two-stage shear plate damper (PDSPD). Table 1 lists the parameter values ​​for these three types of dampers. Each damper type has two specimens with different performance parameters, which is consistent with actual conditions and provides accurate data.

[0105]

[0106] Table 1

[0107]

[0108] (2) Displacements of 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, and 60 mm were applied to the two asynchronous double-stage shear dampers (PDCSDs) step by step. The displacements and the PDCSD parameters in Table 1 were substituted into the formula of the theoretical calculation method proposed above to predict the load changes of the asynchronous double-stage shear dampers (PDCSDs) at different displacement deformation stages. Figure 5 The load-deformation curves of the comparative test and theoretical calculation of PDCSD1 and PDCSD2 provided by the embodiment of the present invention are shown.

[0109] (3) Displacements of 0.7 mm, 1.4 mm, 2.1 mm, 4.2 mm, 6.3 mm, 8.4 mm, 10.5 mm, and 12.6 mm were applied to the first asynchronous two-stage shear plate damper (PDSPD1) in stages, and displacements of 1.0 mm, 2.1 mm, 4.2 mm, 6.3 mm, 8.4 mm, 10.5 mm, 12.6 mm, 16.8 mm, 21 mm, and 25.2 mm were applied to the second asynchronous two-stage shear plate damper (PDSPD2) in stages. The displacements and the PDSPD parameters in Table 1 were substituted into the formula of the theoretical calculation method proposed above to predict the load changes of the asynchronous two-stage shear plate damper (PDSPD) at different displacement deformation stages. Figure 6 The load-deformation curves of the comparative test and theoretical calculation of PDSPD1 and PDSPD2 provided by the embodiment of the present invention are shown.

[0110] The embodiment of the present invention provides a theoretical calculation method for the performance parameters of a friction metal combination asynchronous two-stage damper. It performs stress prediction for the four working stages of the existing friction metal combination asynchronous two-stage damper, provides a stress prediction formula based on the device structure, solves the problem of studying the mechanical properties of the friction metal combination asynchronous two-stage damper, and can effectively predict the restoring force model of the friction metal combination asynchronous two-stage damper. Figure 7 shows the skeleton curve of the friction metal combined asynchronous double-stage damper provided by the embodiment of the present invention, Figure 8 The hysteresis curve of the friction metal combined asynchronous double-stage damper provided by the embodiment of the present invention is shown.

[0111] Skeleton curve:

[0112] (1) When : indicates that only the first sub-damper of the friction metal composite asynchronous two-stage damper is working. When the load increases to the yield point of the first sub-damper, point A on the skeleton curve is reached. At this time, only the first sub-damper provides stiffness and bearing capacity, the asynchronous force transmission system is not activated, and the deformation of the second sub-damper is 0. At this time, the damping force of the parallel two-stage energy dissipation and shock absorption device is:

[0113]

[0114] in, The displacement and force of the friction metal composite asynchronous two-stage damper; is the initial stiffness of the first sub-damper.

[0115] (2) When : At this point the first-order friction damper yields, , is the yield force of the first sub-damper.

[0116] (3) When : Indicates that the second sub-damper of the friction metal combined asynchronous two-stage damper is activated, and the two sub-dampers work in parallel. The first sub-damper continues to consume energy, and the second sub-damper provides stiffness and bearing capacity. There is a constant deformation difference between the first and second sub-damper. When the second sub-damper yields, the force on the support reaches point C in the skeleton curve until the support reaches the maximum axial deformation. .

[0117] At this time, the first friction damper has already yielded. .

[0118] The force on the second metal sub-damper alone is:

[0119]

[0120] in, is the initial stiffness of the second sub-damper; is the yield force of the second sub-damper; is the displacement of point B, i.e. the second-order starting displacement; is the shape parameter of the second sub-damper.

[0121] Then the damping force of the friction metal combined asynchronous two-stage damper is: .

[0122] Unloading curve:

[0123] Under repeated loads, when the steel yields in one direction and is unloaded to zero and then loaded in the reverse direction, that is, when The first and second sub-damper work together to unload together. When the inflection point E is reached, the second sub-damper stops working.

[0124] At this time, the force on the first friction damper alone is ,when hour, .

[0125] The force on the second metal damper alone is

[0126]

[0127] Where, is the initial stiffness of the second sub-damper; is the force and displacement of the turning point; is the force at point B; is the yield force of the second sub-damper; is the shape parameter of the second sub-damper.

[0128] Therefore, the damping force of the friction metal combined asynchronous two-stage damper is .

[0129] when , indicating that the second sub-damper of the friction metal composite asynchronous two-stage damper stops working, and only the first sub-damper is unloaded. When it reaches point F, the unloading is completed.

[0130] At this time, the damping force of the friction metal combined asynchronous two-stage damper is .

[0131] Figure 9 The flowchart of the algorithm of the friction metal combined asynchronous double-stage damper provided by an embodiment of the present invention is shown. The algorithm includes the following steps:

[0132] First, the parameters of the friction metal composite asynchronous two-stage damper are obtained.

[0133] Then, determine whether to use the skeleton curve or the unloading curve.

[0134] Use the skeleton curve to determine whether If so, use the formula . Determine whether it satisfies If the answer is yes, use the formula . Determine whether it satisfies If the answer is yes, use the formula .

[0135] Use the unloading curve to determine whether If so, use the formula If not, further determine whether If the answer is yes, use the formula .

[0136] The characteristics and performance of the damping force prediction method of the friction metal combined asynchronous double-stage damper in the present invention are further described in detail below with reference to the embodiments:

[0137] Example 2:

[0138] The current task is to predict the load variations of three friction metal composite asynchronous two-stage damper specimens at different displacement stages. Table 2 lists the parameters of the three friction metal composite asynchronous two-stage dampers, which are consistent with the actual situation and provide accurate and usable data.

[0139]

[0140] Table 2

[0141] Displacements of 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, and 40mm were applied step by step to the first friction metal composite asynchronous two-stage damper (APDFMD1); displacements of 2.5mm, 5mm, 7.5mm, 10mm, 12.5mm, 15mm, 17.5mm, 20mm, 25mm, and 30mm were applied step by step to the second friction metal composite asynchronous two-stage damper (APDFMD2); and displacements of 2.5mm, 5mm, 7.5mm, 10mm, 12.5mm, 15mm, 17.5mm, 20mm, 25mm, 30mm, 35mm, and 40mm were applied step by step to the third friction metal composite asynchronous two-stage damper (APDFMD3). The displacements and the APDFMD parameters in Table 1 were substituted into the formula of the above theoretical calculation method to predict the load changes of the friction metal composite asynchronous two-stage damper (APDFMD) at different displacement deformation stages. Figure 10 The experimental and theoretically calculated load-deformation curves of APDFMD1, APDFMD2 and APDFMD3 provided in the embodiments of the present invention are shown.

[0142] Currently available calculation software is unable to accurately analyze and calculate asynchronously activated two-stage energy dissipation and vibration reduction devices (metal yield type asynchronous two-stage dampers and friction metal combination type asynchronous two-stage dampers), and it is impossible to predict the relationship between the damper's stress and its structure. The method provided in this embodiment can more accurately calculate the relationship between the damping force and its structure for two types of asynchronously activated two-stage energy dissipation and vibration reduction devices.

[0143] By proposing two calculation methods for asynchronously activated two-stage energy dissipation and shock absorption devices, the embodiments of the present invention can predict the damping force based on the damper structure, effectively simulate the working process of the asynchronously activated two-stage energy dissipation and shock absorption device and the damping force-displacement hysteresis curve under different position changes, and optimize the damping force calculation method of the asynchronously activated two-stage energy dissipation and shock absorption device. In short, this solution effectively solves the technical problems of asynchronously activated two-stage energy dissipation and shock absorption devices, namely:

[0144] (1) A restoring force model of an asynchronously activated double-stage energy dissipation and shock absorption device is proposed, which can effectively carry out seismic response analysis of structures equipped with a parallel double-stage energy dissipation and shock absorption device;

[0145] (2) A theoretical calculation method for the performance parameters of two asynchronous start-up two-stage energy dissipation and shock absorption devices is proposed, which is conducive to the in-depth design of asynchronous start-up two-stage energy dissipation and shock absorption devices for production.

[0146] The hysteretic behavior prediction method for two asynchronously activated, two-stage energy dissipation and shock absorption devices provided in embodiments of the present invention can accurately and specifically analyze and calculate the hysteretic behavior of the two asynchronously activated, two-stage energy dissipation and shock absorption devices when the structure encounters different types and levels of disasters. This method can more accurately predict the hysteretic behavior of the asynchronously activated, two-stage energy dissipation and shock absorption devices under different axial deformation conditions.

[0147] Two restoring force models of asynchronously started double-stage energy dissipation and shock absorption devices are proposed, which can effectively carry out seismic response analysis of structures equipped with parallel double-stage energy dissipation and shock absorption devices.

[0148] The theoretical calculation method for the performance parameters of two asynchronous start-up double-stage energy dissipation and vibration reduction devices is proposed, which is conducive to the in-depth design of asynchronous start-up double-stage energy dissipation and vibration reduction devices for production.

[0149] An embodiment of the present invention also provides a universal simulation system for the hysteresis behavior of an asynchronous two-order energy dissipation and shock absorption device, which is applied to a metal yield type asynchronous two-order damper. The metal yield type asynchronous two-order damper includes a first sub-damper and a second sub-damper. The system is used to execute the above method.

[0150] An embodiment of the present invention also provides a universal simulation system for the hysteresis behavior of an asynchronous two-stage energy dissipation and shock absorption device, which is applied to a friction metal combination asynchronous two-stage damper. The friction metal combination asynchronous two-stage damper includes a first friction sub-damper and a second metal sub-damper. The system is used to execute the above method.

[0151] The system provided in this embodiment has the same implementation principle and technical effects as those of the aforementioned embodiments. For the sake of brief description, for matters not mentioned in the device embodiment, reference may be made to the corresponding contents in the aforementioned method embodiment.

[0152] An embodiment of the present invention provides an electronic device, which includes a processor and a memory. The memory stores a computer program that can be run on the processor. When the processor executes the computer program, the steps of the method provided in the above embodiment are implemented.

[0153] An embodiment of the present invention provides a computer-readable medium, wherein the computer-readable medium stores computer-executable instructions. When the computer-executable instructions are called and executed by a processor, the computer-executable instructions prompt the processor to implement the method described in the above embodiment.

[0154] Those skilled in the art will understand that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing a control device through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed, it may include the processes of the above-mentioned method embodiments, wherein the storage medium may be a memory, a disk, an optical disk, etc.

[0155] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0156] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0157] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A general simulation method for the hysteresis behavior of an asynchronous two-stage energy dissipation and shock absorption device, characterized in that: Applied to a metal yield type asynchronous two-stage damper, the metal yield type asynchronous two-stage damper includes a first sub-damper and a second sub-damper, and the method includes: Obtaining parameters of the metal yield type asynchronous double-order damper; when , the damping force of the metal yield type asynchronous double-stage damper satisfies the following formula: in, is the displacement and force of the metal yield type asynchronous two-stage damper; is the initial stiffness of the first sub-damper; is the yield force of the first sub-damper; is the shape parameter of the first sub-damper; is the second-order starting displacement; when , the force on the first sub-damper alone satisfies the following formula: The force on the second sub-damper alone satisfies the following formula: The damping force of the metal yield type asynchronous double-stage damper is: ; in, is the initial stiffness of the second sub-damper; is the yield force of the second sub-damper; is the maximum axial deformation; is the shape parameter of the second sub-damper; is the force of the first sub-damper, is the force of the second sub-damper.

2. The method according to claim 1, characterized in that when , the damping force of the metal yield type asynchronous double-stage damper satisfies the following formula: The force on the first sub-damper alone is: The force on the second sub-damper alone is The damping force of the metal yield type asynchronous double-stage damper is ; in, is the initial stiffness of the second sub-damper; is the force and displacement of the turning point; is the force at point B; is the yield force of the second sub-damper; is a breaking point, when the second sub-damper reaches the breaking point, it stops working; is the force of the first sub-damper, is the force of the second sub-damper; when , is the unloading completion point, and the damping force of the metal yield type asynchronous two-stage damper is .

3. The method according to claim 2, characterized in that The method further comprises: According to the damping force calculation formula of the metal yield type asynchronous double-stage damper, a skeleton curve and an unloading curve are drawn.

4. The method according to claim 2, characterized in that The method further comprises: According to the damping force calculation formula of the metal yield type asynchronous two-stage damper and the shock absorption requirements, the performance parameters of the metal yield type asynchronous two-stage damper are designed.

5. A general simulation method for the hysteresis behavior of an asynchronous two-stage energy dissipation and shock absorption device, characterized in that: Applied to a friction metal combination type asynchronous two-stage damper, the friction metal combination type asynchronous two-stage damper includes a first friction sub-damper and a second metal sub-damper, and the method includes: Obtaining parameters of the friction metal combined asynchronous double-stage damper; when , the damping force of the friction metal combined asynchronous double-stage damper satisfies the following formula: in, The displacement and force of the friction metal composite asynchronous two-stage damper; is the initial stiffness of the first friction sub-damper; is the displacement when the load increases to the yield force of the first friction sub-damper; when , the damping force of the friction metal combined asynchronous double-stage damper satisfies the following formula: in, is the yield force of the first friction damper; is the second-order starting displacement; when , The force on the first friction damper alone is: ; The force on the second metal sub-damper alone is: in, is the initial stiffness of the second sub-damper; is the yield force of the second sub-damper; is the second-order starting displacement; is the maximum axial deformation; is the shape parameter of the second sub-damper; The damping force of the friction metal combined asynchronous double-stage damper is: .

6. The method according to claim 5, characterized in that when , the damping force of the friction metal combined asynchronous double-stage damper satisfies the following formula: The force on the first friction damper alone is: ,when hour, ; The force on the second metal damper alone is in, is the initial stiffness of the second metal sub-damper; is the force and displacement of the turning point; is the force at point B; is the yield force of the second metal sub-damper; is a breaking point, when the second metal sub-damper reaches the breaking point, it stops working; is the force of the first friction damper, is the force of the second metal sub-damper; The damping force of the friction metal combined asynchronous double-stage damper is ; when , is the unloading completion point, and the damping force of the friction metal combined asynchronous two-stage damper is .

7. The method according to claim 6, characterized in that The method further comprises: According to the damping force calculation formula of the friction metal combined asynchronous double-stage damper, a skeleton curve and an unloading curve are drawn.

8. The method according to claim 6, characterized in that The method further comprises: According to the damping force calculation formula of the friction metal combined asynchronous two-stage damper and the shock absorption requirements, the performance parameters of the friction metal combined asynchronous two-stage damper are designed.

9. A universal simulation system for the hysteresis behavior of an asynchronous double-stage energy dissipation and shock absorption device, characterized in that: The invention is applied to a metal yield type asynchronous double-stage damper, wherein the metal yield type asynchronous double-stage damper comprises a first sub-damper and a second sub-damper, and the system is used to execute the method according to any one of claims 1 to 4.

10. A universal simulation system for the hysteresis behavior of an asynchronous double-stage energy dissipation and shock absorption device, characterized in that: The system is applied to a friction metal combination type asynchronous double-stage damper, wherein the friction metal combination type asynchronous double-stage damper comprises a first friction sub-damper and a second metal sub-damper, and is used to execute the method according to any one of claims 5 to 8.

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