Active multi-mode vibration reduction control and monitoring platform for dynamic load cylindrical equipment

Abstract

An active multi-mode vibration reduction control and monitoring platform for dynamic load cylindrical equipment belongs to the technical field of vehicle-mounted vibration reduction and comprises an electromagnetic negative stiffness synergistic vibration isolation unit, a negative stiffness deformation monitoring unit and a vibration isolation layer stiffness active control unit. The electromagnetic negative stiffness synergistic vibration isolation unit is fixedly arranged on the vehicle body; the negative stiffness deformation monitoring unit monitors the vibration state based on non-contact vibration monitoring and vibration isolation layer slidable sleeve displacement-speed mixed monitoring. The vibration isolation layer rigidity active control unit is electrically connected with the bottom electromagnetic negative rigidity synergistic vibration isolation unit, the tail electromagnetic negative rigidity synergistic vibration isolation unit and the negative rigidity deformation monitoring unit and used for processing and analyzing monitored data. The negative stiffness force generated by the electromagnetic negative stiffness device is controlled through the electromagnetic force to obtain the variable-stiffness self-adaptive vibration isolation effect, the vibration isolation situation under different vibration isolation frequencies and amplitudes is met, the vibration isolation effect and the vibration energy dissipation efficiency of the vibration isolation layer are remarkably improved, and the high-performance vibration isolation effect is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle shock absorption, and particularly relates to an active multi-modal vibration reduction control and monitoring platform for a dynamic load cylindrical device. Background Art

[0002] During long-term transportation and storage, large cylindrical devices will be subjected to different types of long-term or instantaneous vibration loads. Such vibration loads include long-term random vibrations and short-term accidental impact loads. In different situations, the amplitudes and spectral components of various vibration input loads are also different, which will lead to the initiation and propagation of cracks in the precision components inside the cylindrical device, and ultimately lead to the destruction and failure of structural integrity. Therefore, it is very necessary and important to explore the multi-modal active control method of dynamic load cylindrical devices under different vibration loads and to monitor the vibration state of the cylindrical device in real time. It will help to reduce the structural damage caused by different types of vibration loads to the cylindrical device, and effectively improve the structural vibration safety and reliability of the cylindrical device during long-term storage and transportation. Summary of the Invention

[0003] The present invention aims to solve the above problems and provides an active multi-modal vibration reduction control and monitoring platform for a dynamic load cylindrical device, which can effectively improve the structural vibration safety and reliability of the cylindrical device during long-term storage and transportation.

[0004] The active multi-modal vibration reduction control and monitoring platform for the dynamic load cylindrical device of the present invention includes an electromagnetic negative stiffness enhancement vibration isolation unit, a negative stiffness deformation monitoring unit, and an active control unit for the stiffness of the vibration isolation layer; The electromagnetic negative stiffness enhancement vibration isolation unit includes a bottom electromagnetic negative stiffness enhancement vibration isolation unit and a tail electromagnetic negative stiffness enhancement vibration isolation unit; Both the bottom electromagnetic negative stiffness enhancement vibration isolation unit and the tail electromagnetic negative stiffness enhancement vibration isolation unit are fixedly arranged on the transportation vehicle body, and are respectively located at the bottom and the tail of the cylindrical device; a cylindrical device cushion block is arranged between the bottom electromagnetic negative stiffness enhancement vibration isolation unit and the cylindrical device; the bottom electromagnetic negative stiffness enhancement vibration isolation unit is used to isolate the vertical vibration load; the tail electromagnetic negative stiffness enhancement vibration isolation unit is used to isolate the horizontal vibration load; The negative stiffness deformation monitoring unit is fixedly arranged on the transportation vehicle body, located at the front end of the cylindrical device, and the movement of the electromagnetic negative stiffness vibration isolation unit is monitored in real time through a non-contact optical motion detection device; the negative stiffness deformation monitoring unit realizes the real-time monitoring of the vibration state of the cylindrical device based on the non-contact vibration monitoring system and the hybrid monitoring of the displacement-velocity of the slidable sleeve of the vibration isolation layer; The vibration isolation layer stiffness active control unit is electrically connected to the aforementioned bottom electromagnetic negative stiffness enhancement vibration isolation unit, the tail electromagnetic negative stiffness enhancement vibration isolation unit, and the negative stiffness deformation monitoring unit respectively, and is used for processing and analyzing the monitored data.

[0005] The active multi-modal vibration reduction control and monitoring platform for the dynamic load cylindrical equipment of the present invention realizes the real-time monitoring of the vibration state of the cylindrical equipment based on the non-contact vibration monitoring system and the hybrid monitoring idea of the displacement-velocity of the sliding sleeve of the vibration isolation layer; meanwhile, the monitoring system has the ability to calculate the dynamic response of the cylindrical equipment, and can quickly predict the dynamic response states such as the acceleration of the cylindrical equipment according to the monitored displacement and velocity information of the vibration isolation layer, and feedback to the vibration control system to adjust the magnitude of the electromagnetic force to change the magnitude of the negative stiffness force in real time, so as to achieve the active control effect on the cylindrical equipment and ensure the transportation and storage safety of the cylindrical equipment under different dynamic load conditions.

[0006] Furthermore, for the active multi-modal vibration reduction control and monitoring platform of the dynamic load cylindrical equipment of the present invention, the electromagnetic negative stiffness enhancement vibration isolation unit includes a sliding cylinder, a fixed cylinder, a top sliding pad, a bottom fixed pad, a first positive stiffness spring, additional damping, and an electromagnetic negative stiffness block; The sliding cylinder includes a sliding outer cylinder and a sliding inner cylinder; the fixed cylinder includes a fixed outer cylinder and a fixed inner cylinder; the lower end of the sliding cylinder is sleeved with the upper end of the fixed cylinder; the sliding outer cylinder, the fixed outer cylinder, the sliding inner cylinder, and the fixed inner cylinder are arranged from outside to inside in sequence; The top sliding pad is arranged at the top of the sliding inner cylinder; the bottom fixed pad is arranged at the bottom of the fixed inner cylinder; the fixed cylinder and the bottom fixed pad are both fixedly connected to the transport vehicle body; The electromagnetic negative stiffness block includes three annular permanent magnets, namely a top permanent magnet, a middle permanent magnet, and a bottom permanent magnet; The top permanent magnet is located between the sliding outer cylinder and the sliding inner cylinder and is fixedly arranged at the top of the sliding cylinder; The bottom permanent magnet is located between the fixed outer cylinder and the fixed inner cylinder and is fixedly arranged at the bottom of the fixed cylinder; The first positive stiffness spring and the additional damping are fixedly arranged on the bottom permanent magnet; An annular inner partition pad is fixedly arranged at the top of the first positive stiffness spring and the additional damping; The middle permanent magnet is fixedly arranged on the aforementioned inner partition pad; The inner partition pad and the middle permanent magnet are both located between the aforementioned fixed outer cylinder and the sliding inner cylinder; A disc spring is arranged between the top sliding pad and the bottom fixed pad of the bottom electromagnetic negative stiffness enhancement vibration isolation unit; the top of the disc spring is fixedly connected to the sliding pad; A second positive stiffness spring is arranged between the top sliding pad and the bottom fixed pad of the tail electromagnetic negative stiffness enhancing vibration isolation unit; the top of the second positive stiffness spring is fixedly connected to the sliding pad. The tail electromagnetic negative stiffness enhancing vibration isolation unit is similar in structure to the bottom electromagnetic negative stiffness enhancing vibration isolation unit. Since the tail electromagnetic negative stiffness enhancing vibration isolation unit does not need to bear the gravity load of the structure, in order to obtain better vibration isolation effect, the disc spring in the middle of the tail electromagnetic negative stiffness enhancing vibration isolation unit is changed to a second positive stiffness spring.

[0007] When it is the electromagnetic negative stiffness enhancing vibration isolation unit, the top permanent magnet, the sliding outer cylinder, the sliding inner cylinder and the top sliding pad move synchronously due to being fixedly connected. The middle permanent magnet can move within a limited range between the cylinders under the action of the electromagnetic force attraction of the upper and lower permanent magnets, the first positive stiffness spring and the additional damping force.

[0008] Furthermore, for the active multi-modal vibration reduction control and monitoring platform of the moving load cylindrical equipment of the present invention, the electromagnetic negative stiffness block is composed of three permanent magnets controlled by electromagnetic force, and all three permanent magnets have N poles and S poles. When energized, the energized solenoid can generate an electromagnetic force of mutual attraction, which can provide a negative stiffness force for the vibration isolation layer, further reduce the vibration isolation stiffness of the vibration isolation layer, and improve the vibration isolation effect. In addition, the negative stiffness force provided by the electromagnetic negative stiffness device can further amplify the deformation of the additional damping, improve the energy dissipation capacity of the vibration isolation layer, dissipate more vibration input energy under the same displacement of the vibration isolation layer, and obtain a good vibration isolation effect; the negative stiffness force of the electromagnetic negative stiffness block can be controlled by adjusting the electromagnetic force through the vibration isolation layer stiffness active control unit to control the magnitude of the negative stiffness force, so as to achieve multi-modal active control.

[0009] Furthermore, for the active multi-modal vibration reduction control and monitoring platform of the moving load cylindrical equipment of the present invention, the negative stiffness deformation monitoring unit includes a motion detection device base, a non-contact optical motion detection device and a data transmission device; The motion detection device base is fixedly connected to the transport vehicle body; The non-contact optical motion detection device is installed on the motion detection device base, and is used to monitor the deformation and motion speed of the sliding outer cylinder in the bottom and tail electromagnetic negative stiffness enhancing vibration isolation units, and transmit the monitored data to the vibration isolation layer stiffness active control unit through the data transmission device to monitor the structural vibration state and vibration environment of the cylindrical equipment in real time.

[0010] Furthermore, for the active multi-modal vibration reduction control and monitoring platform of the moving load cylindrical equipment of the present invention, the vibration isolation layer stiffness active control unit includes a data analysis device and an electromagnetic control device that are electrically connected; the electromagnetic control device is connected to the aforementioned electromagnetic negative stiffness block through an electromagnetic data control line; After receiving the real-time monitoring data from the negative stiffness deformation monitoring unit, the data analysis device processes and analyzes the monitored data to obtain the vibration state of the device. When the vibration value exceeds the threshold, the electromagnetic control device adjusts the electromagnetic force in the electromagnetic negative stiffness block to adjust and control the stiffness of the vibration isolation layer in real time, so as to change the stiffness and energy dissipation effect of the vibration isolation layer, and achieve the purpose of multi-modal vibration isolation and active control.

[0011] Furthermore, in the active multi-modal vibration reduction control and monitoring platform for the moving load cylindrical device of the present invention, the bottom fixed cushion block, the bottom permanent magnet, the fixed outer cylinder and the fixed inner cylinder are integrally processed with the transportation vehicle body, further ensuring the firm and reliable overall structure.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The present invention proposes an active multi-modal vibration reduction control and monitoring hybrid integrated platform for the moving load cylindrical device. The multi-modal vibration reduction control device includes a parallel group of disc springs and a negative stiffness system, which significantly improves the vibration isolation effect of the vibration isolation layer and the vibration energy dissipation efficiency while ensuring sufficient static load-bearing capacity, and realizes a high-performance vibration isolation effect.

[0013] 2. The present invention installs the electromagnetic negative stiffness device in the vibration isolation layer and controls the negative stiffness force generated by the electromagnetic negative stiffness device through electromagnetic force to obtain an adaptive vibration isolation effect with variable stiffness, which can meet the vibration isolation situations under different vibration isolation frequencies and amplitudes.

[0014] 3. The present invention proposes a hybrid monitoring idea based on a non-contact vibration monitoring system and the displacement-velocity of the slidable sleeve of the vibration isolation layer, and realizes the real-time monitoring of the vibration state of the cylindrical device; at the same time, the monitoring system has the ability to calculate the dynamic response of the cylindrical device, quickly predicts the dynamic response states such as the acceleration of the cylindrical device according to the monitored displacement and velocity information of the vibration isolation layer, and feeds back to the vibration control system to adjust the magnitude of the electromagnetic force to change the magnitude of the negative stiffness force in real time, so as to achieve the active control effect on the cylindrical device. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the application state of the active multi-modal vibration reduction control and monitoring platform for the moving load cylindrical device described in the embodiment of the present invention; Figure 2 It is a longitudinal sectional structure diagram of the bottom electromagnetic negative stiffness enhanced vibration isolation unit described in the embodiment of the present invention; Figure 3 It is a cross-sectional structure diagram of the bottom electromagnetic negative stiffness enhanced vibration isolation unit described in the embodiment of the present invention; Figure 4 It is a sectional structure diagram of the tail electromagnetic negative stiffness enhanced vibration isolation unit described in the embodiment of the present invention; Among them, 1 - slidable outer cylinder, 2 - slidable inner cylinder, 3 - fixed outer cylinder, 4 - fixed inner cylinder, 5 - top slidable cushion block, 6 - bottom fixed cushion block, 7 - disc spring, 8 - first positive stiffness spring, 9 - additional damping, 10 - internal partition cushion block, 11 - electromagnetic negative stiffness block, 11a - top permanent magnet, 11b - middle permanent magnet, 11c - bottom permanent magnet, 12 - cylindrical device, 13 - transport vehicle body, 14 - cylindrical device cushion block, 15 - motion detection device base, 16 - non-contact optical motion detection device, 17 - data transmission device, 18 - data analysis device, 19 - electromagnetic control device, 20 - electromagnetic data control line, 21 - second positive stiffness spring, 22 - bottom electromagnetic negative stiffness enhanced vibration isolation unit, 23 - tail electromagnetic negative stiffness enhanced vibration isolation unit. Detailed implementation mode

[0016] The active multi-modal vibration reduction control and monitoring platform of the moving load cylindrical device 12 of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0017] This embodiment discloses an active multi-modal vibration reduction control and monitoring platform for a moving load cylindrical device 12, as Figure 1 shown, which includes an electromagnetic negative stiffness enhanced vibration isolation unit, a negative stiffness deformation monitoring unit, and an active control unit for the stiffness of the vibration isolation layer.

[0018] In the embodiment of the present disclosure, the electromagnetic negative stiffness enhanced vibration isolation unit includes a bottom electromagnetic negative stiffness enhanced vibration isolation unit 22 and a tail electromagnetic negative stiffness enhanced vibration isolation unit 23; both the bottom electromagnetic negative stiffness enhanced vibration isolation unit 22 and the tail electromagnetic negative stiffness enhanced vibration isolation unit 23 are fixedly arranged on the transport vehicle body 13, and are respectively located at the bottom and the tail of the cylindrical device 12; a cylindrical device cushion block 14 is arranged between the bottom electromagnetic negative stiffness enhanced vibration isolation unit 22 and the cylindrical device 12; the bottom electromagnetic negative stiffness enhanced vibration isolation unit 22 is used to isolate vertical vibration loads; the tail electromagnetic negative stiffness enhanced vibration isolation unit 23 is used to isolate horizontal vibration loads.

[0019] In the embodiment of the present disclosure, the negative stiffness deformation monitoring unit is fixedly arranged on the transport vehicle body 13, and is located at the front end of the cylindrical device 12, and includes a motion detection device base 15, a non-contact optical motion detection device 16, and a data transmission device 17; the motion detection device base 15 is fixedly connected to the transport vehicle body 13; the non-contact optical motion detection device 16 is installed on the motion detection device base 15, and is used to monitor the deformation and motion speed of the slidable outer cylinder 1 in the bottom and tail electromagnetic negative stiffness enhanced vibration isolation units 23, and transmit the monitored data to the active control unit for the stiffness of the vibration isolation layer through the data transmission device 17 to monitor the structural vibration state and vibration environment of the cylindrical device 12 in real time.

[0020] The movement of the electromagnetic negative stiffness vibration isolation unit is monitored in real time by a non-contact optical motion detection device 16; the negative stiffness deformation monitoring unit realizes the real-time monitoring of the vibration state of the cylindrical device 12 based on the non-contact vibration monitoring system and the hybrid monitoring of the displacement-velocity of the sliding sleeve of the vibration isolation layer. In the embodiment of the present disclosure, the stiffness active control unit of the vibration isolation layer includes a data analysis device 18 and an electromagnetic control device 19 that are electrically connected; the electromagnetic control device 19 is connected to the electromagnetic negative stiffness block 11 through an electromagnetic data control line 20; after receiving the real-time monitoring data of the negative stiffness deformation monitoring unit, the data analysis device 18 processes and analyzes the monitored data to obtain the vibration state of the device. When the vibration value exceeds the threshold, the electromagnetic force in the electromagnetic negative stiffness block 11 is adjusted through the electromagnetic control device 19 to adjust and control the stiffness of the vibration isolation layer in real time, so as to change the stiffness and energy dissipation effect of the vibration isolation layer, and achieve the purpose of multi-modal vibration isolation and active control.

[0021] In the embodiment of the present disclosure, as Figure 2 、 Figure 3 shown, the electromagnetic negative stiffness enhanced vibration isolation unit includes a sliding cylinder, a fixed cylinder, a top sliding pad 5, a bottom fixed pad 6, a first positive stiffness spring 8, an additional damper 9, and an electromagnetic negative stiffness block 11.

[0022] The sliding cylinder includes a sliding outer cylinder 1 and a sliding inner cylinder 2; the fixed cylinder includes a fixed outer cylinder and a fixed inner cylinder 4; the lower end of the sliding cylinder is sleeved with the upper end of the fixed cylinder; the sliding outer cylinder 1, the fixed outer cylinder 3, the sliding inner cylinder 2, and the fixed inner cylinder 4 are arranged in sequence from the outside to the inside; the top sliding pad 5 is arranged at the top of the sliding inner cylinder 2; the bottom fixed pad 6 is arranged at the bottom of the fixed inner cylinder 4; the fixed cylinder and the bottom fixed pad 6 are both fixedly connected to the transportation vehicle body 13.

[0023] The electromagnetic negative stiffness block 11 includes three annular permanent magnets, namely a top permanent magnet 11a, a middle permanent magnet 11b, and a bottom permanent magnet 11c; all three permanent magnets have N and S poles. In the case of energization, an electromagnetic force that attracts each other can be generated by the energized solenoid, which can provide a negative stiffness force for the vibration isolation layer, further reducing the vibration isolation stiffness of the vibration isolation layer and improving the vibration isolation effect. In addition, the negative stiffness force provided by the electromagnetic negative stiffness device can further amplify the deformation of the additional damper 9, improve the energy dissipation capacity of the vibration isolation layer, dissipate more vibration input energy under the same displacement of the vibration isolation layer, and obtain a good vibration isolation effect; and the negative stiffness force of the electromagnetic negative stiffness block 11 can be controlled by adjusting the electromagnetic force through the stiffness active control unit of the vibration isolation layer to control the magnitude of the negative stiffness force, realizing multi-modal active control.

[0024] The top permanent magnet 11a is located between the slidable outer cylinder 1 and the slidable inner cylinder 2, and is fixedly arranged at the top of the slidable cylinder; the bottom permanent magnet is located between the fixed outer cylinder 3 and the fixed inner cylinder 4, and is fixedly arranged at the bottom of the fixed cylinder; the first positive stiffness spring 8 and the additional damper 9 are fixedly arranged on the bottom permanent magnet 11c; an annular inner partition spacer 10 is fixedly arranged at the top of the first positive stiffness spring 8 and the additional damper 9; the middle permanent magnet 11b is fixedly arranged on the aforesaid inner partition spacer 10; both the inner partition spacer 10 and the middle permanent magnet 11b are located between the aforesaid fixed outer cylinder 3 and the slidable inner cylinder 2; a disc spring 7 is arranged between the top slidable spacer 5 and the bottom fixed spacer 6 of the bottom electromagnetic negative stiffness enhanced vibration isolation unit 22; the top of the disc spring 7 is fixedly connected with the slidable spacer.

[0025] As Figure 4 shown, a second positive stiffness spring 21 is arranged between the top slidable spacer 5 and the bottom fixed spacer 6 of the tail electromagnetic negative stiffness enhanced vibration isolation unit 23; the top of the second positive stiffness spring 21 is fixedly connected with the slidable spacer. The tail electromagnetic negative stiffness enhanced vibration isolation unit 23 has a similar structure to the bottom electromagnetic negative stiffness enhanced vibration isolation unit 22. Since the tail electromagnetic negative stiffness enhanced vibration isolation unit 23 does not need to bear the gravity load of the structure, in order to obtain a better vibration isolation effect, the disc spring 7 in the middle of the tail electromagnetic negative stiffness enhanced vibration isolation unit 23 is changed to the second positive stiffness spring 21.

[0026] In the embodiment of the present disclosure, the bottom fixed spacer 6, the bottom permanent magnet 11c, the fixed outer cylinder 3 and the fixed inner cylinder 4 are integrally processed with the transportation vehicle body 13, which can further ensure the firm reliability of the overall structure.

[0027] The active multi-modal vibration damping control and monitoring platform of the dynamic load cylindrical device 12 in this embodiment is based on the non-contact vibration monitoring system and the hybrid monitoring idea of the displacement-velocity of the sliding sleeve of the vibration isolation layer. The real-time monitoring of the vibration state of the cylindrical device 12 is realized through the negative stiffness deformation monitoring unit; at the same time, it has the ability to calculate the dynamic response of the cylindrical device 12, and can quickly predict the dynamic response states such as the acceleration of the cylindrical device 12 according to the monitored displacement and velocity information of the vibration isolation layer, and feedback to the active control unit of the stiffness of the vibration isolation layer to adjust the magnitude of the electromagnetic force to change the magnitude of the negative stiffness force in the electromagnetic negative stiffness enhanced vibration isolation unit in real time, so as to achieve the active control effect on the cylindrical device 12 and ensure the transportation and storage safety of the cylindrical device 12 under different dynamic load conditions. It can effectively reduce the structural damage and disadvantages brought by different types of vibration loads to the cylindrical device 12, and effectively improve the structural vibration safety and reliability of the cylindrical device 12 during long-term storage and transportation.

Claims

1. An active multi-modal vibration reduction control and monitoring platform for dynamic load cylindrical equipment, characterized in that: It includes an electromagnetic negative stiffness enhanced vibration isolation unit, a negative stiffness deformation monitoring unit, and an active control unit for the vibration isolation layer stiffness. The electromagnetic negative stiffness enhanced vibration isolation unit includes a bottom electromagnetic negative stiffness enhanced vibration isolation unit and a tail electromagnetic negative stiffness enhanced vibration isolation unit. Both the bottom electromagnetic negative stiffness enhanced vibration isolation unit and the tail electromagnetic negative stiffness enhanced vibration isolation unit are fixedly arranged on the transport vehicle body, located at the bottom and the tail of the cylindrical equipment respectively; a cylindrical equipment cushion block is arranged between the bottom electromagnetic negative stiffness enhanced vibration isolation unit and the cylindrical equipment; the bottom electromagnetic negative stiffness enhanced vibration isolation unit is used to isolate the vertical vibration load; the tail electromagnetic negative stiffness enhanced vibration isolation unit is used to isolate the horizontal vibration load. The negative stiffness deformation monitoring unit is fixedly arranged on the transport vehicle body, located at the front end of the cylindrical equipment, and the movement of the electromagnetic negative stiffness vibration isolation unit is monitored in real time through a non-contact optical motion detection device; the negative stiffness deformation monitoring unit realizes the real-time monitoring of the vibration state of the cylindrical equipment based on the non-contact vibration monitoring system and the hybrid monitoring of the displacement-velocity of the slidable sleeve of the vibration isolation layer. The active control unit for the vibration isolation layer stiffness is electrically connected to the aforementioned bottom electromagnetic negative stiffness enhanced vibration isolation unit, tail electromagnetic negative stiffness enhanced vibration isolation unit, and negative stiffness deformation monitoring unit respectively, and is used to process and analyze the monitored data.

2. The active multi-modal vibration reduction control and monitoring platform for the moving cylindrical device according to claim 1, characterized in that: The electromagnetic negative stiffness enhanced vibration isolation unit includes a slidable cylinder, a fixed cylinder, a top slidable cushion block, a bottom fixed cushion block, a first positive stiffness spring, additional damping, and an electromagnetic negative stiffness block. The slidable cylinder includes a slidable outer cylinder and a slidable inner cylinder; the fixed cylinder includes a fixed outer cylinder and a fixed inner cylinder; the lower end of the slidable cylinder is sleeved with the upper end of the fixed cylinder; the slidable outer cylinder, fixed outer cylinder, slidable inner cylinder, and fixed inner cylinder are arranged in sequence from outside to inside. The top slidable cushion block is arranged at the top of the slidable inner cylinder; the bottom fixed cushion block is arranged at the bottom of the fixed inner cylinder; both the fixed cylinder and the bottom fixed cushion block are fixedly connected to the transport vehicle body. The electromagnetic negative stiffness block includes three ring-shaped permanent magnets, namely a top permanent magnet, a middle permanent magnet, and a bottom permanent magnet. The top permanent magnet is located between the slidable outer cylinder and the slidable inner cylinder, and is fixedly arranged at the top of the slidable cylinder. The bottom permanent magnet is located between the fixed outer cylinder and the fixed inner cylinder, and is fixedly arranged at the bottom of the fixed cylinder. The first positive stiffness spring and the additional damping are fixedly arranged on the bottom permanent magnet. An annular inner partition cushion block is fixedly arranged at the top of the first positive stiffness spring and the additional damping. The middle permanent magnet is fixedly arranged on the aforementioned inner partition cushion block. Both the inner partition cushion block and the middle permanent magnet are located between the aforementioned fixed outer cylinder and the slidable inner cylinder. A disc spring is arranged between the top slidable cushion block and the bottom fixed cushion block of the bottom electromagnetic negative stiffness enhanced vibration isolation unit; the top of the disc spring is fixedly connected to the slidable cushion block. A second positive stiffness spring is arranged between the top slidable cushion block and the bottom fixed cushion block of the tail electromagnetic negative stiffness enhanced vibration isolation unit; the top of the second positive stiffness spring is fixedly connected to the slidable cushion block.

3. The active multi-modal vibration reduction control and monitoring platform for the moving cylindrical device according to claim 2, characterized in that: In the bottom electromagnetic negative stiffness enhancement vibration isolation unit, the electromagnetic negative stiffness block is composed of three permanent magnets controlled by electromagnetic force, and all three permanent magnets have N poles and S poles.

4. The active multi-modal vibration reduction control and monitoring platform for the moving cylindrical device according to claim 1, wherein: The negative stiffness deformation monitoring unit includes a motion detection device base, a non-contact optical motion detection device, and a data transmission device; The motion detection device base is fixedly connected to the transportation vehicle body; The non-contact optical motion detection device is installed on the motion detection device base, and is used to monitor the deformation and motion speed of the slidable outer cylinder in the bottom and tail electromagnetic negative stiffness enhancement vibration isolation units, and transmit the monitored data to the vibration isolation layer stiffness active control unit through the data transmission device, so as to monitor the structural vibration state and vibration environment of the cylindrical device in real time.

5. The active multi-modal vibration reduction control and monitoring platform for the moving cylindrical device according to claim 2, characterized in that: The vibration isolation layer stiffness active control unit includes a data analysis device and an electromagnetic control device that are electrically connected; the electromagnetic control device is connected to the aforementioned electromagnetic negative stiffness block through an electromagnetic data control line; After receiving the real-time monitoring data of the negative stiffness deformation monitoring unit, the data analysis device processes and analyzes the monitored data to obtain the vibration state of the device; when the vibration value exceeds the threshold, the electromagnetic force in the electromagnetic negative stiffness block is adjusted through the electromagnetic control device to adjust and control the stiffness of the vibration isolation layer in real time.

6. The active multi-modal vibration reduction control and monitoring platform for the moving cylindrical device according to claim 2, characterized in that: The bottom fixed cushion block, the bottom permanent magnet, the fixed outer cylinder, and the fixed inner cylinder are integrally processed and formed with the transportation vehicle body.

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