CN112985724A

CN112985724A - TMD running state digital twin detection device and running state judgment method

Info

Publication number: CN112985724A
Application number: CN202110179968.5A
Authority: CN
Inventors: 张晓利
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-06-18
Anticipated expiration: 2041-02-08
Also published as: CN112985724B

Abstract

The invention discloses a tuning mass damper TMD running state digital twin detection device, which comprises: the mass block, the spring, the damper and the base further comprise a TMD sensor, a data acquisition point, a detection controller, a data bus and a TMD running state digital twin data sample library. The TMD and the derivative vibration damping system thereof are monitored in real time, the running state of main components of the TMD is mastered at any time and is used as the basis for adjusting various parameters of the TMD system, so that the TMD is always monitored and has the best vibration damping effect to provide data support. The invention also discloses a TMD running state judgment method, which judges whether the TMD assembly is in fatigue failure or TMD design problem in real time according to the TMD running state digital twin detection device data, thereby providing method support for TMD full life cycle system display monitoring, early warning and failure analysis.

Description

TMD running state digital twin detection device and running state judgment method

Technical Field

The invention relates to the technical field of damping devices, in particular to a TMD running state digital twinning detection device and a running state judgment method. Background

Civil structures such as bridges and the like are easy to vibrate under the action of dynamic loads such as strong wind, earthquakes and the like, the structural safety of the civil structures is endangered by large structural vibration, and the use comfort of the civil structures is reduced. In recent years, world bridge engineering enters a new period of building ultra-large span bridges which cross sea and connect islands, span records of a cable-stayed bridge and a suspension bridge are refreshed once and again, and particularly the span of the suspension bridge exceeds 200Om and even reaches 5000 m. Along with the continuous increase of bridge span, the bridge structure tends to be more gentle, and is more sensitive to the effect of load such as wind, and the flexible construction of bridge is before and after applying the load, and the shape and the axis of structure and essential element have all taken place very big change, and the internal force increment that arouses by the displacement change increases. How to ensure the dynamic stability of the bridge under the action of wind and how to effectively inhibit the larger wind-induced vibration of the bridge become the biggest tests faced by bridge workers, and the traditional method of increasing the rigidity and the material strength of the bridge is unreasonable from the viewpoint of economy and attractiveness in the wind-resistant design of the large-span bridge.

A Tuned Mass Damper System (TMD System for short) is a commonly used passive vibration suppression method at present and comprises a Mass block, a spring (stiffness) and a Damper (damping unit). The TMD system mainly realizes the vibration control effect through the resonance principle, and the vibration effect is good only when the vibration frequency of the TMD system is close to the controlled natural vibration frequency of the structure. Under the action of external excitation, the bridge structure vibrates and drives the tuned mass damper on the structure to vibrate together, when the vibration frequency of the tuned mass damper system is close to the natural frequency of the bridge structure, the TMD system can provide an inertia force opposite to the vibration direction of the bridge structure to act on the bridge structure, so that the vibration response of the bridge structure is gradually attenuated, the vibration energy is transferred from the bridge structure to the TMD system, and the vibration of the bridge structure is controlled.

At present, research literature and patents are mostly focused on structural improvement of the TMD, and optimal damping efficiency is obtained by adjusting the relationship between the parameters of the three units, namely the mass block, the spring and the damping, and the mass and the natural vibration frequency of the controlled structure, or the damping effect of the TMD is enhanced by adding an eddy current tuning device.

For example: chinese patent document CN 202011133603.0 "tuning mass convenient for adjusting damping and vibration frequency" is provided with a plurality of lateral adjusting spring components in TMD to convert the lifting motion of the upper mounting plate into lateral motion, and drive the viscous damper and adjusting spring components to stretch and contract to realize shock absorption. Chinese patent document CN 202010005127.8 "an eddy current damping device using a lever mechanism" uses the magnetic fields on both sides of a permanent magnet to obtain the required damping force with a small number of permanent magnets through an amplifying mechanism, thereby reducing the difficulty and risk of permanent magnet installation. Chinese patent document CN 201920824998.5, "eddy current tuned mass damper", realizes the effect of continuously changing damping by changing the facing area of the permanent magnet and the conductor plate. When the structure generates vertical vibration to drive the mass block to vertically vibrate, the conductor plates on the two sides of the permanent magnet move to cut magnetic induction lines, induced current (vortex) is generated in the conductor plates, and then an inertia force which hinders the relative movement of the conductor plates and the permanent magnet, namely electromagnetic damping, is generated, and vibration energy is consumed through heating. The eddy current damping system disclosed in chinese patent document CN 202011188542.8, "a horizontally tuned frame-type eddy current damper", applies the magnetic field modulation principle and the concept of negative stiffness nonlinear energy trap, and increases the moving speed of the high-speed end permanent magnet by the magnetic tuning plate, so as to improve the energy consumption efficiency of the damper; the movement of the balancing weight can be promoted through the tangential component of the repulsive force between the permanent magnets with the same name, so that the vibration reduction frequency band is widened, the robustness is better, and the problem of poor vibration reduction effect when the traditional tuned mass damper is out of order is solved.

However, the damping effect of TMD is still not always optimal, and the reason is mainly focused on the following aspects: 1) TMD belongs to a passive mechanical damping device, the operation of which is always in a loaded state and has a long service life, while the service state of TMD should be considered for long-term load operation of mechanical parts. "basic requirements of TMD for bridge" and eddy current TMD ", written by chengzhengqing, huangzhi (university of hunan wind engineering research center) in 2013 and" university of hunan university "(nature science edition) make requirements for the basic performance of TMD, that is, taking a large bridge in hong kong zhu baohao with a design life cycle of 120 years as an example, the minimum fatigue life of each component of TMD is more than ten million times, and is replaced once in about 10 years. Long-term load operation of mechanical components can lead to device aging and affect TMD damping. 2) The TMD natural frequency is obtained by optimally designing by taking a certain order natural frequency of structures such as a bridge as a reference, one TMD can only control a single-order mode, and under most conditions, the bridge structure mainly takes the first or the first few orders of vibration modes as the main part, so that the TMD system mainly controls the first or the first few orders of vibration modes of the bridge, and the complex vibration modes and fundamental frequencies of the bridge vibration can not be considered simultaneously. If the actual frequency of the bridge structure deviates from the design value, the optimized frequency of the TMD is also changed, and the damping efficiency of the TMD designed according to the original optimized frequency is reduced. And once the current TMD product is installed, special maintenance work is not needed, the vibration suppression parameters and the vibration suppression effect of the TMD are established at the beginning of design by the mass block and the damping, the self vibration frequency cannot be adjusted at any time to cope with the changes of the bridge vibration mode and the vibration rate which change from time to time, and the service life of the TMD is prolonged, and the TMD needs to be replaced completely by people for judgment. 3) In practical application, because the mechanical motions of the mass block, the damping block and the spring can have inconsistent vibration motion phase difference or overlarge friction damping of the TMD, when the TMD generates enough vibration in a main structure, the TMD cannot start working or cannot coordinate working immediately, the TMD cannot reach an ideal working state in time, and wind vibration energy is gradually accumulated in a bridge structure to form large-amplitude vibration, so that the TMD vibration reduction efficiency is reduced sharply.

From the current bridge vibration suppression theory and practice, the current TMD system modeling method is to develop and mature a model in the simulation application field of bridge vibration, then to adopt an integration and data fusion method to fuse independent models from different fields such as simple vibration, damping vibration suppression and the like into a comprehensive TMD system level model, and to play a role in actual vibration reduction.

Therefore, the key to determining whether a TMD is in an effective vibration damping state is to determine whether the vibration damping actuators, the mass, the damping and the spring in the TMD, and the various vibration damping actuators of the derivative products, including also the TMD, are in a coordinated motion state. However, in the current theoretical research and products of the TMD, the operation states of each component of the TMD are not effectively detected and monitored, so that the operation states of the TMD cannot be mastered and effectively judged, and further, the vibration suppression effect of the TMD on the bridge is difficult to master and analyze in real time. In the long-term operation of the TMD, whether the TMD is in failure or not and which parts are out of order are often judged according to experience, and the TMD is difficult to be used as a digitalized basis for accurate judgment, so that the TMD and derivative products thereof are very necessary to be monitored in real time, the operation states of main parts of the TMD are mastered at any time, and the operation states are used as the basis for adjusting various parameters of the TMD system, so that the TMD is always monitored, and the TMD is always in the best vibration suppression effect to provide data support.

Disclosure of Invention

The present invention provides a TMD operation state digital twin detection device and an operation state determination method to solve the technical problems of the prior art.

By detecting the TMD and various derivative damping systems thereof in real time, and aiming at the part entities of the TMD and the derivative systems thereof, a digital Twin body (Digita l Twin) corresponding to the part entities is constructed by a digital means, so that the real-time monitoring and analysis of the physical entities of all the parts of the TMD are realized. The method comprises the steps of knowing the working state of each component of the TMD in time, constructing a physical model of the TMD system in a data driving mode, describing and representing the running state and fault analysis of the TMD system, combining entity monitoring, data flow, algorithm and decision analysis by using artificial intelligence, realizing digital mapping of TMD components, establishing a monitoring strategy of key parameters and inspection indexes of the running of the TMD system, monitoring the change of the TMD system in a virtual model, detecting whether each vibration suppression component of the TMD is in a coordinated working state, further judging whether the TMD achieves the optimal vibration reduction effect by using TMD digital twinning and big data analysis, adjusting TMD structural parameters in a targeted manner to provide data basis, diagnosing data processing and abnormal analysis based on the artificial intelligence, predicting potential risks, and maintaining reasonably and effectively. The method is a great breakthrough on the TMD vibration suppression theory and practice at present.

In order to achieve the above technical object, the present invention provides the following technical solutions, a tuned mass damper TMD operation state digital twin detecting apparatus, comprising: the mass block, the spring, the damper and the base further comprise a TMD sensor, a data acquisition point, a detection controller, a data bus and a TMD running state digital twin data sample library. The TMD sensor is fixed on the base, and the data acquisition points are respectively arranged on the mass block, the spring, the damper and the base. The TMD sensor collects vertical or horizontal motion tracks of the mass block, the spring and the damper, and collected data are transmitted to the TMD running state digital twin data sample library for storage through a data bus under the control of the detection controller.

In the TMD structure, the damping, the spring and the mass block are the most important executing components for realizing the damping effect of the TMD, the motion trail of the mass block is far from insufficient, and the optimal damping effect can be achieved only by the mutual coordination and coordination of the damping, the spring and the mass block. The damping motion of the three parts is similar, energy transmission is achieved through reciprocating motion, the mutual position displacement relationship among the three parts directly reflects the operation parameters of the TMD, such as vibration amplitude, frequency, phase difference and the like, and directly reflects whether the working performance of the TMD meets the design requirements or not, and further determines the actual operation structural parameters of the TMD, such as: frequency ratio, mass ratio and TMD damping, and TMD dynamics modeling and material stiffness, flexibility, elasticity, fatigue strength, etc. Therefore, the working performance of the TMD can be known in time by monitoring the movements of the damping, the spring and the mass block. The digital twin detection device and the data acquisition device are similar for TMD derived products such as eddy current damping devices and the like.

The invention preferably adopts the technical scheme that the data acquisition points of the damper and the spring are vertically or horizontally corresponding in space, so that the time-varying relation of the position between the damper and the spring is obtained. The data acquisition points of the mass block and the base are vertically or horizontally corresponding in space, so that the time-varying relation of the position between the mass block and the base is obtained. Since TMD generally has vertical and horizontal vibration damping structures, data acquisition points should also be distinguished between vertical and horizontal directions when obtaining the relative positional relationship between damping, springs and masses.

The invention preferably adopts the technical scheme that the TMD sensor adopts a speed sensor, a relative position sensor, a laser detector and other devices capable of accurately measuring relative space-time position displacement.

The invention preferably adopts the technical scheme that the data acquired by the TMD sensor comprises motion speed, acceleration, oscillation amplitude, motion frequency and relative position displacement.

The invention preferably adopts the technical scheme that the TMD running state digital twin detection device further comprises an eddy current damper and an eddy current damper motion track detection device.

The invention has the preferable technical scheme that the eddy current damper comprises a permanent magnet, a conductor plate, a magnet back iron and a conductor back iron, the eddy current damper motion track detection device comprises an eddy current damping sensor and a data acquisition point, the eddy current damper motion track detection device is used for acquiring relative position displacement or rotation relative displacement between the permanent magnet and the conductor plate, and the detection data comprises speed, acceleration, oscillation amplitude, motion frequency, relative position displacement, rotation speed and rotation relative position. The data acquisition point is fixed on the permanent magnet and the conductor plate. The permanent magnets are in the forms of permanent magnet pairs, permanent magnet arrays, permanent magnet turntables and the like.

The invention preferably adopts the technical scheme that the data acquisition points on the permanent magnets are correspondingly symmetrical in position, and the permanent magnets are symmetrical with the data acquisition points of the conductor plates, so that the time-varying relationship of the position displacement between the permanent magnets and the conductor plates is obtained.

The invention has the preferable technical scheme that the eddy current damper comprises an excitation coil, an inertia piece, a fixed electromagnetic base and an inertia mass fixed base, the eddy current damper motion track detection device comprises an inertia rotation sensor and a data acquisition point and is used for acquiring the rotation motion detection of the inertia piece, and the detection data comprises the rotation speed, the rotation frequency and the rotation relative position. The data acquisition point is fixed on the excitation coil and the inertia piece.

A TMD running state judging method is characterized by comprising the following steps:

1) according to data collected by a TMD running state digital twin detection device, on the basis of the existing TMD and design thereof, whether the motion speed, acceleration, oscillation amplitude, motion frequency and relative position displacement of the mass block, the spring and the damper meet the design parameter requirements or not is respectively judged, if yes, the step 2 is carried out, otherwise, the motion track problems of the mass block, the spring and the damper are respectively judged, the specific problem range is determined, and the step 4 is carried out.

2) And judging whether the coupling motion tracks of the mass block, the spring and the damper meet the requirements or not, and judging whether uncoordinated vibration motion phase differences exist or not, namely judging whether the data of the data acquisition points of the mass block, the spring and the damper vertically or horizontally correspond to the data acquisition points in space or not.

3) And (4) jumping to the step 4 if the condition is met, otherwise, judging whether the TMD assembly is in fatigue failure or TMD design according to the problems of the mass block, the spring and the damping motion trail.

4) If the TMD design problem is solved, establishing a coupling objective function, design parameters and design constraints of the mass block, the spring and the damping motion, and improving the original design; if the problem belongs to the TMD assembly, the TMD assembly is replaced.

5) The new design and replacement assembly of the TMD are tested and implemented, and the display monitoring, early warning and fault analysis of the TMD full life cycle system are realized.

Advantageous effects

The TMD and the derivative products thereof are detected in real time, the running state of main parts of the TMD is mastered at any time and is used as the basis for adjusting various parameters of the TMD system, so that the TMD is always monitored and has the best vibration suppression effect to provide data support. And judging whether the TMD assembly is in fatigue failure or TMD design problem in real time according to the TMD running state digital twinning detection device data by a TMD running state judgment method, thereby providing method support for TMD full-life cycle system display monitoring, early warning and failure analysis.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a block diagram of a tuned mass damper TMD operating state digital twin device;

FIG. 2 is a structural diagram of a motion trajectory detection device of a tuned mass damper TMD eddy current damper;

FIG. 3 is a block diagram of a tuned mass damper TMD field coil eddy current damper assembly;

FIG. 4 is a flow chart of a tuned mass damper TMD operating state digital twinning device;

FIG. 5 is a tuned mass damper TMD operating state determination method.

In the figure: 1. a mass block; 2. a spring; 3. damping; 4. a base; 5. a TMD sensor; 6. a data acquisition point; 7. a detection controller; 8. a data bus; 9. a TMD running state digital twin data sample library; 21. an eddy current damper; 23. a permanent magnet; 24. a conductor plate; 25. a magnet back iron; 26. A conductor back iron; 27. an eddy current damper motion trail detection device; 31. a field coil; 32. an inertial member; 33. fixing the electromagnetic base; 34. an inertial mass mount base; 35. an inertial rotation sensor.

Detailed Description

Example 1

Referring to fig. 1, a tuned mass damper TMD operating state digital twin detecting apparatus includes: the mass block, the spring, the damper and the base further comprise a TMD sensor, a data acquisition point, a detection controller, a data bus and a TMD running state digital twin data sample library. The TMD sensor is fixed on the base, and the data acquisition points are respectively arranged on the mass block, the spring, the damper and the base. The TMD sensor collects vertical or horizontal motion tracks of the mass block, the spring and the damper, and collected data are transmitted to the TMD running state digital twin data sample library for storage through a data bus under the control of the detection controller.

The TMD sensor adopts a speed sensor, a relative position sensor, a laser detector and other devices capable of accurately measuring relative space-time position displacement. The data collected by the TMD sensor comprises variable data such as motion speed, acceleration, oscillation amplitude, motion frequency, relative position displacement and the like. The data acquisition points of the damping and the spring are vertically or horizontally corresponding in space, so that the position-time change relationship between the damping and the spring is obtained. The data acquisition points of the mass block and the base are vertically or horizontally corresponding in space, so that the time-varying relation of the position between the mass block and the base is obtained. Since TMD generally has vertical and horizontal vibration damping structures, data acquisition points should also be distinguished between vertical and horizontal directions when obtaining the relative positional relationship between damping, springs and masses.

The core part of the TMD running state digital twin detection device is formed by a TMD sensor, a data acquisition point, a data bus, a TMD running state digital twin data sample library and a detection controller of a mass block, a damping and a spring, and by manufacturing a digital twin body for the TMD assembly, the TMD sensor detects motion space-time characteristic information of a TMD component, and the device comprises the following components: the motion states and relevant position relations of the mass block, the damper and the spring during operation, and the physical characteristics of the component, such as stress analysis, a dynamic model, and the rigidity, flexibility, elasticity, fatigue strength and the like of the material are also detected. The arrangement of the sensors can enable the whole digital twin to obtain more accurate and sufficient data support, and enable the TMD digital twin to be closer to the functions and characteristics of physical entities.

Example 2

As shown in fig. 2, the TMD operation state digital twin device further includes an eddy current damper and an eddy current damper movement locus detection device. The eddy current damper comprises a permanent magnet, a conductor plate, a magnet back iron and a conductor back iron, the eddy current damper motion track detection device comprises an eddy current damping sensor and a data acquisition point, the eddy current damper motion track detection device is used for acquiring relative position displacement or rotation relative displacement between the permanent magnet and the conductor, and detection data comprises speed, acceleration, oscillation amplitude, motion frequency, relative position displacement, rotation speed and rotation relative position. The data acquisition point is fixed on the permanent magnet and the conductor plate. The permanent magnets are in the forms of permanent magnet pairs, permanent magnet arrays, permanent magnet turntables and the like. The data acquisition points on the permanent magnets are symmetrical correspondingly, and the permanent magnets are symmetrical with the data acquisition points on the conductor plates, so that the time-varying relation of the position displacement between the permanent magnets and the conductor plates is obtained. The eddy current damping sensor and the TMD sensor can be functionally integrated in the TMD running state digital twin detection device or can be functionally separated.

Example 3

Referring to fig. 3, the eddy current damper in the TMD operation state digital twin detection device includes an excitation coil, an inertia member, a fixed electromagnetic base, and an inertial mass fixed base, and the eddy current damper motion trajectory detection device includes an inertial rotation sensor and a data acquisition point for acquiring the rotation motion detection of the inertia member, and the detection data includes the rotation speed, the rotation frequency, and the relative rotation position. The data acquisition point is fixed on the excitation coil and the inertia piece. The inertial rotation sensor and the TMD sensor can be functionally integrated in the TMD running state digital twin detection device or can be functionally separated.

Example 4

Referring to fig. 4, the TMD operation state digital twin detection device flow is divided into a TMD basic component and a TMD derivative system according to a data driving manner, the TMD basic component includes a mass block, a spring and a damper, and the damper is divided into an electro-hydraulic servo damper, a viscous damper, a hydraulic damper and the like according to different damping manners, and is suitable for the TMD operation state digital twin detection device. The digital twin detection of the TMD basic assembly comprises vertical or horizontal motion track detection and stretching motion detection. The TMD derivative system mainly refers to a TMD eddy current damper, and mainly comprises a plate type eddy current damper, a rotary type eddy current damper, a ball screw type eddy current damper and the like, and digital twin detection of the TMD eddy current dampers comprises different detection modes such as relative motion displacement detection between a permanent magnet and a conductor, rotary motion detection between the permanent magnet and the conductor, inertia piece rotation detection and the like, and the detection modes fall into the protection range of the invention. The detection device for the TMD assembly and the derivative system comprises a speed sensor, a relative position sensor, a laser detector, a laser displacement meter and other detectors capable of detecting the space-time position relationship. And the detection data is transmitted to the TMD running state digital twin data sample library in real time under the control of the detection controller through a data bus.

Example 5

Referring to fig. 5, a TMD operation state determination method is characterized by comprising the following steps:

1) according to data collected by a TMD running state digital twin detection device, on the basis of the existing TMD and design thereof, whether the motion speed, acceleration, oscillation amplitude, motion frequency and relative position displacement of the mass block, the spring and the damper meet the requirements of design parameters or not is respectively judged, if yes, the step 2 is carried out, otherwise, the motion track problems of the mass block and the damper are respectively judged, the specific problem range is determined, and the step 4 is carried out.

2) And judging whether the coupling motion tracks of the mass block, the spring and the damper meet the requirements or not, and judging whether uncoordinated vibration motion phase differences exist or not, namely judging whether the data of the mass block, the spring and the damper corresponding to the data acquisition points in the vertical or horizontal space do not correspond to the space-time problem or not.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A TMD operating state digital twin detecting device comprising: the mass block (1), the spring (2), the damping (3) and the base (4), the mass block is characterized by further comprising a TMD sensor (5), a data acquisition point (6), a detection controller (7), a data bus (8) and a TMD running state digital twin data sample library (9), the TMD sensor (5) is fixed on the base (4), the data acquisition point (6) is respectively installed on the mass block (1), the spring (2), the damping (3) and the base (4), the mass block (1), the spring (2) and the damping (3) are acquired by the TMD sensor (5) in a vertical or horizontal motion track, and acquired data are transmitted to the TMD running state digital twin data sample library (9) through the data bus (8) to be stored under the control of the detection controller (7).

2. The TMD operating state digital twin detecting device according to claim 1, wherein the damper (3) and the data acquisition point (6) of the spring (2) are spatially vertically or horizontally corresponded to obtain a positional time-varying relationship therebetween, and the data acquisition point (6) of the mass block (1) and the base (4) are spatially vertically or horizontally corresponded to obtain a positional time-varying relationship therebetween.

3. The TMD operation state digital twin detecting device according to claim 1, wherein the TMD sensor (5) employs a speed sensor, a relative position sensor or a laser detector.

4. The TMD operating state digital twin detecting device according to claim 1, wherein the data collected by the TMD sensor (5) includes moving speed, acceleration, oscillation amplitude, moving frequency, relative position displacement.

5. The TMD operating state digital twin detecting device according to claim 1, further comprising an eddy current damper (21) and an eddy current damper movement locus detecting device (22).

6. The TMD running state digital twin detection device according to claim 5, wherein the eddy current damper (21) comprises a permanent magnet (23), a conductor plate (24), a magnet back iron (25), and a conductor back iron (26), the eddy current damper motion trajectory detection device (22) comprises an eddy current damping sensor (27) and a data acquisition point (6) for acquiring relative position displacement or rotational relative displacement between the permanent magnet (23) and the conductor plate (24), the detection data comprises speed, acceleration, oscillation amplitude, motion frequency, relative position displacement, rotational speed, and rotational relative position, the data acquisition point (6) is fixed on the permanent magnet (23) and the conductor plate (24), and the permanent magnet (23) is a permanent magnet pair, a permanent magnet array, or a permanent magnet turntable.

7. The TMD operating state digital twin detecting apparatus according to claim 5 or 6, wherein the positions of the data acquisition points (6) on the permanent magnets (23) are symmetrical with each other, and the permanent magnets (23) are symmetrical with the data acquisition points (6) of the conductor plates (24), thereby obtaining the position-time variation relationship between the permanent magnets (23) and the conductor plates (24).

8. The TMD operating state digital twin detecting device according to claim 5, wherein the eddy current damper (21) comprises an excitation coil (31), an inertia member (32), a fixed electromagnetic base (33), an inertial mass fixed base (34), the eddy current damper motion trajectory detecting device (22) comprises an inertial rotation sensor (35) and a data acquisition point (6) for acquiring the rotation motion detection of the inertia member (32), and the detection data comprises a rotation speed, a rotation frequency and a rotation relative position; the data acquisition point (6) is fixed on the excitation coil (31) and the inertia piece (32).

9. A TMD operation state judgment method using the TMD operation state digital twin detection device according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:

1) according to data collected by a TMD running state digital twin detection device, on the basis of the existing TMD and the design thereof, respectively judging whether the motion speed, the acceleration, the oscillation amplitude, the motion frequency and the relative position displacement of the mass block, the spring and the damper meet the requirements of design parameters, if so, turning to the step 2, otherwise, respectively judging the motion track problems of the mass block, the spring and the damper, determining the specific problem range according to the motion track problems, and turning to the step 4;

2) judging whether the coupling motion tracks of the mass block, the spring and the damper meet the requirements or not, and judging whether uncoordinated vibration motion phase differences exist or not, namely judging whether data of the mass block, the spring and the damped data acquisition points vertically or horizontally correspond to the data acquisition points in space or not according to the judgment whether the data of the mass block, the spring and the damped data acquisition points do not correspond to the data acquisition points in space and time;

3) if the condition is met, jumping to the step 4, otherwise, judging whether the TMD assembly is in fatigue failure or TMD design according to the problems of the mass block, the spring and the damping motion trail;

4) if the TMD design problem is solved, establishing a coupling objective function, design parameters and design constraints of the mass block, the spring and the damping motion, and improving the original design; if the problem belongs to the TMD assembly, replacing the TMD assembly;