A high dynamic response electromagnetic vibration reduction system

Abstract

This invention discloses a high dynamic response electromagnetic vibration damping system, relating to the field of vibration damper technology. The invention achieves instantaneous opening and closing of the inner and outer cylinder circulation paths through the coordinated action of a sealed drive electromagnet and a resettable tension spring. Switching between two operating modes—graded damping and stepless damping—simply requires cutting off or activating the electromagnet, eliminating the need for mechanical valve core insertion / removal. The dynamic response time can be compressed to the millisecond level, significantly improving high-frequency vibration suppression capability and system reliability. Employing a closed-loop servo structure of blade-worm gear-motor, the force-sensitive resistor senses the oil flow direction and magnitude in real time, and the control algorithm can continuously adjust the blade speed within the 0–100% drag coefficient range. Compared to magnetorheological fluid solutions relying on magnetic induction shear, this eliminates temperature drift and ferromagnetic particle deposition problems, ensuring damping linearity and repeatability.

Description

Technical Field

[0001] This invention relates to the field of shock absorber technology, specifically a high dynamic response electromagnetic shock absorption system. Background Art

[0002] Current hydraulic shock absorbers primarily rely on three damping adjustment methods: Fixed orifice type: Orifices of different diameters are pre-machined on the piston or bottom valve, and switching between several orifice diameters is achieved via a mechanical turntable or slide valve. This method can only provide 2-4 discrete damping levels, and the orifice diameter cannot be dynamically fine-tuned once machined. Stacked valve plate type: Multiple layers of thin spring plates open sequentially under different pressure differentials, forming three damping levels: "soft-medium-hard". Although relatively smooth in the low-to-mid frequency range, the threshold rises after spring plate fatigue, causing misalignment of the actual damping level; simultaneously, the valve plates only passively open with flow rate, failing to allow for active damping selection by the driver or controller. In summary, existing technologies generally have a limited number of damping levels, failing to meet the urgent need for multi-level + continuous damping combinations in high-speed or complex operating conditions. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides the following technical solution: a high dynamic response electromagnetic damping system comprising two coaxially arranged outer and inner cylinders, wherein the inner cylinder is located inside the outer cylinder, and the outer surface of the inner cylinder is fixedly connected to the inner wall of the outer cylinder by an inner cylinder support frame; the top of the inner cylinder has multiple top liquid flow holes, and the bottom of the inner cylinder has a bottom liquid flow hole, at which a flow damping adjustable pipe is provided, and the flow damping adjustable pipe is fixedly and sealed to the inner cylinder; a blade support body is rotatably installed inside the flow damping adjustable pipe, and damping blades are fixed on the circumferential surface of the blade support body; the blade support body is driven to rotate by the output shaft of an adjustable control motor, and the adjustable control motor is fixedly installed on the bottom sealing cover, which is fixedly sealed to the bottom of the outer cylinder in a way that is easy to disassemble, so that the bottom sealing cover is connected to the inside of the outer cylinder; hydraulic oil is connected inside the outer cylinder, the inner cylinder, the bottom sealing cover, and the flow damping adjustable pipe.

[0004] Preferably, a sealing drive electromagnet is fixedly installed at the bottom of the inner cylinder, and a sealing magnetic ring is magnetically engaged below the sealing drive electromagnet. The sealing magnetic ring is slidably installed on the inner wall of the bottom sealing cover, and the circumferential surface of the sealing drive electromagnet and the inner wall of the bottom sealing cover are slidably sealed together by the sealing magnetic ring. The sealing magnetic ring is used to block the flow space between the flow damping adjustable tube and the outer and inner cylinders.

[0005] Preferably, a tension spring is fixedly installed between the sealing magnetic ring and the bottom surface of the inner wall of the bottom sealing cover. The tension spring is used to pull the sealing magnetic ring to move away from the sealing drive electromagnet. The tension spring is arranged around the outside of the adjustable control motor.

[0006] Preferably, two symmetrically arranged actuating force plates are fixedly installed on the output shaft of the adjustable control motor; the blade support body has two actuating grooves along its radial direction, and the two actuating force plates are respectively disposed in the two actuating grooves. A force-sensitive resistor is overlapped between the two surfaces of each actuating force plate and the actuating groove, and the force-sensitive resistor is used to monitor the transmission force between the blade support body and the actuating force plates; the output shaft of the adjustable control motor and the blade support body can rotate, but cannot move relative to each other axially; the output shaft of the adjustable control motor drives the blade support body to rotate through the two actuating force plates and the actuating grooves. A worm gear mechanism is provided between the output shaft of the adjustable control motor and the transmission path of the blade support body, that is, the output shaft of the adjustable control motor is fixed to the worm, and the rotating shaft of the worm wheel is fixed to the two actuating force plates, used to drive the blade support body to rotate (the worm gear mechanism and the adjustable control motor body are considered as a whole, and the rotating shaft of the worm wheel is the output shaft of the adjustable control motor).

[0007] Preferably, a sliding piston body is slidably sealed on the inner wall of the inner cylinder. The sliding piston body is fixedly installed at the bottom end of the sliding piston rod, and the sliding piston rod and the sliding piston body are coaxially arranged. The sliding piston rod is slidably sealed to the top end of the inner cylinder. An adjustment servo motor support shell is fixedly installed at the top end of the sliding piston rod. A spring is fixedly installed between the adjustment servo motor support shell and the top end of the outer surface of the outer cylinder. The spring is arranged around the outside of the sliding piston rod, and a dustproof bellows is sleeved on the outside of the spring. The two ends of the dustproof bellows are fixed to the adjustment servo motor support shell and the outer cylinder.

[0008] Preferably, an adjustment servo motor is fixedly installed inside the adjustment servo motor support housing, and a rotating shaft is fixedly installed on the output shaft of the adjustment servo motor. The rotating shaft is rotatably inserted into the internal axis position of the sliding piston rod, and the bottom end of the rotating shaft extends into the interior of the sliding piston body.

[0009] Preferably, a first turntable and a second turntable are rotatably mounted inside the sliding piston body in the axial direction. The sliding piston body has multiple intermediate liquid flow holes, all of which are arranged in a circular equidistant array on the sliding piston body, and the axes of all the intermediate liquid flow holes are parallel to the axis of the sliding piston body.

[0010] Preferably, the second turntable has through holes of the same number and diameter as the intermediate liquid flow holes; the first turntable has through holes of two different diameters, and the number of through holes of each diameter is the same as the intermediate liquid flow holes; both the second and first turntables are provided with arc-shaped resistance strips, and the sliding piston body is provided with two sliding conductive contacts that are respectively slidably conductively engaged with the two arc-shaped resistance strips, for monitoring the rotational position angle of the first and second turntables inside the sliding piston body.

[0011] Preferably, both the second and first turntables are rotatably fitted with friction electromagnet supports at their axial centers. Both friction electromagnet supports are fixedly fitted to the rotating shaft. Each friction electromagnet support has multiple friction electromagnets slidably mounted along its radial direction using an embedded method. All friction electromagnets corresponding to the first turntable are in magnetic frictional engagement with the first turntable, and all friction electromagnets corresponding to the second turntable are in magnetic frictional engagement with the second turntable. The sliding piston body, the first turntable, and the second turntable are insulated from each other; the sliding piston body, the first turntable, and the second turntable are in a rotationally sealed engagement.

[0012] Compared with the prior art, the present invention has the following advantages: (1) The present invention achieves instantaneous opening and closing of the circulation path of the inner and outer cylinders by cooperating with the sealed drive electromagnet and the resettable tension spring; switching between the two working modes of gear damping and stepless damping only requires cutting off or energizing the electromagnet, without mechanically inserting or removing the valve core, and the dynamic response time can be compressed to the millisecond level, which greatly improves the high-frequency vibration suppression capability and system reliability; (2) The present invention adopts a closed-loop servo structure of blade-worm gear-motor, and the force-sensitive resistor senses the direction and magnitude of the oil flow in real time. The control algorithm can continuously adjust the blade speed within the range of 0-100% resistance coefficient; compared with the magnetorheological fluid scheme that relies on magnetic induction shear, it eliminates the problems of temperature drift and ferromagnetic particle deposition, and ensures the damping linearity and repeatability; (3) The overall structure of the present invention is coaxially laid out. The inner and outer cylinders, piston rod, rotating shaft and worm gear are all arranged along the axis, avoiding lateral load and multi-stage crankshaft connection, reducing inertia and friction; at the same time, the oil circuit is completely closed, eliminating the risk of foaming under high-frequency vibration, and ensuring the long-term stability of damping characteristics. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the outer cylinder structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the spring structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the internal structure of the outer cylinder of the present invention.

[0016] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point A in the middle.

[0017] Figure 5 This is a schematic diagram of the structure of the adjustable servo motor support shell of the present invention.

[0018] Figure 6 This is a schematic diagram of the inner cylinder structure of the present invention.

[0019] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point B.

[0020] Figure 8 This is a schematic diagram of the structure of the damping blade in this invention.

[0021] Figure 9 For the present invention Figure 8 Schematic diagram of the structure at point C.

[0022] Figure 10 This is a schematic diagram of the structure of the sliding piston body of the present invention.

[0023] Figure 11 This is a schematic diagram of the structure at the intermediate liquid flow hole of the present invention.

[0024] Figure 12 This is a schematic diagram of the structure of the friction electromagnet in this invention.

[0025] In the diagram: 101-Outer cylinder; 102-Inner cylinder support frame; 103-Inner cylinder; 104-Top liquid flow hole; 105-Bottom sealing cover; 106-Sealing magnetic ring; 107-Sealing drive electromagnet; 108-Tension spring; 109-Flow damping adjustable tube; 110-Adjustable control motor; 111-Damping blade; 112-Bottom liquid flow hole; 113-Blade support body; 114-Actuating force plate; 115-Actuating recess 116 - Slot; 117 - Sliding piston body; 118 - Sliding piston rod; 119 - Adjustment servo motor support housing; 120 - Adjustment servo motor; 121 - Rotating shaft; 122 - Spring; 123 - Dustproof bellows; 124 - First turntable; 125 - Second turntable; 126 - Intermediate fluid flow hole; 127 - Sliding conductive contact; 128 - Friction electromagnet support body; 129 - Friction electromagnet. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-12 The technical solution of the present invention will be further illustrated through specific embodiments.

[0027] This invention provides a high dynamic response electromagnetic damping system comprising two coaxially arranged outer cylinders 101 and inner cylinders 103, wherein the inner cylinder 103 is disposed inside the outer cylinder 101, and the outer surface of the inner cylinder 103 is fixedly connected to the inner wall of the outer cylinder 101 by an inner cylinder support frame 102; the top of the inner cylinder 103 has multiple top liquid flow holes 104, and the bottom of the inner cylinder 103 has a bottom liquid flow hole 112, at which a flow damping adjustable tube 109 is disposed, and the flow damping adjustable tube 109 is fixedly and sealedly connected to the inner cylinder 103; the flow damping adjustable tube 109 is located at the bottom liquid flow hole 112. The inner cylinder 101 is internally mounted with a blade support 113, and a damping blade 111 is fixed on the circumferential surface of the blade support 113. The blade support 113 is driven to rotate by the output shaft of an adjustable control motor 110. The adjustable control motor 110 is fixedly mounted on the bottom sealing cover 105. The bottom sealing cover 105 is fixedly sealed to the bottom of the outer cylinder 101 in a way that is easy to disassemble, so that the bottom sealing cover 105 is connected to the inside of the outer cylinder 101. Hydraulic oil is connected inside the outer cylinder 101, inner cylinder 103, bottom sealing cover 105, and flow damping adjustable pipe 109.

[0028] A sealing drive electromagnet 107 is fixedly installed at the bottom of the inner cylinder 103. A sealing magnetic ring 106 is magnetically engaged below the sealing drive electromagnet 107. The sealing magnetic ring 106 is slidably installed on the inner wall of the bottom sealing cover 105, and the circumferential surface of the sealing drive electromagnet 107 and the inner wall of the bottom sealing cover 105 are slidably sealed together by the sealing magnetic ring 106. The sealing magnetic ring 106 is used to block the flow space between the flow damping adjustable tube 109 and the outer cylinder 101 and the inner cylinder 103. A tension spring 108 is fixedly installed between the sealing magnetic ring 106 and the bottom surface of the inner wall of the bottom sealing cover 105. The tension spring 108 is used to pull the sealing magnetic ring 106 to move away from the sealing drive electromagnet 107. The tension spring 108 is arranged around the outside of the adjustable control motor 110. Two symmetrically arranged actuating force plates 114 are fixedly installed on the output shaft of the adjustable control motor 110. The blade support body 113 has two actuating grooves 115 along its radial direction. The two actuating force plates 114 are respectively arranged in the two actuating grooves 115, and a force-sensitive resistor 116 is overlapped between the two surfaces of each actuating force plate 114 and the actuating groove 115. The force-sensitive resistor 116 is used to monitor the force transmission between the blade support body 113 and the actuating force plate 114. The output shaft of the adjustable control motor 110 can rotate with respect to the blade support body 113, but cannot move relative to its axial direction. The output shaft of the adjustable control motor 110 drives the blade support body 113 to rotate through the two actuating force plates 114 and the actuating grooves 115. A worm gear mechanism is provided between the output shaft of the adjustable control motor 110 and the transmission path of the blade support 113. That is, the output shaft of the adjustable control motor 110 is fixed to the worm, and the rotating shaft of the worm wheel is fixed to two actuating force plates 114, which are used to drive the blade support 113 to rotate (the worm gear mechanism and the adjustable control motor 110 body are regarded as a whole, and the rotating shaft of the worm wheel is the output shaft of the adjustable control motor 110).

[0029] A sliding piston body 117 is slidably sealed on the inner wall of the inner cylinder 103. The sliding piston body 117 is fixedly installed at the bottom end of the sliding piston rod 118. The sliding piston rod 118 and the sliding piston body 117 are coaxially arranged. The sliding piston rod 118 is slidably sealed to the top end of the inner cylinder 103. An adjustment servo motor support shell 119 is fixedly installed at the top end of the sliding piston rod 118. A spring 122 is fixedly installed between the adjustment servo motor support shell 119 and the top end of the outer surface of the outer cylinder 101. The spring 122 is arranged around the outside of the sliding piston rod 118. A dustproof bellows 123 is sleeved on the outside of the spring 122. The two ends of the dustproof bellows 123 are fixed to the adjustment servo motor support shell 119 and the outer cylinder 101. An adjustment servo motor 120 is fixedly installed inside the adjustment servo motor support housing 119. A rotating shaft 121 is fixedly installed on the output shaft of the adjustment servo motor 120. The rotating shaft 121 is rotatably inserted into the internal axis of the sliding piston rod 118, and the bottom end of the rotating shaft 121 extends into the interior of the sliding piston body 117. A first turntable 124 and a second turntable 125 are rotatably installed in the axial direction inside the sliding piston body 117. The sliding piston body 117 has a plurality of intermediate liquid flow holes 126. All the intermediate liquid flow holes 126 are arranged in a circular equidistant array on the sliding piston body 117, and the axis of all the intermediate liquid flow holes 126 is parallel to the axis of the sliding piston body 117. The second turntable 125 has through holes of the same number and diameter as the intermediate liquid flow hole 126; the first turntable 124 has through holes of two different diameters, and the number of each diameter through holes is the same as that of the intermediate liquid flow hole 126; both the second turntable 125 and the first turntable 124 are provided with arc-shaped resistance bars, and the sliding piston body 117 is provided with two sliding conductive contacts 127 that are respectively slidably conductively engaged with the two arc-shaped resistance bars, for monitoring the rotational position angle of the first turntable 124 and the second turntable 125 inside the sliding piston body 117. Both the second turntable 125 and the first turntable 124 have friction electromagnet supports 128 rotatably fitted at their axial positions. Both friction electromagnet supports 128 are fixedly fitted to the rotating shaft 121. Each friction electromagnet support 128 has multiple friction electromagnets 129 slidably installed along its radial direction. All friction electromagnets 129 corresponding to the first turntable 124 are in magnetic frictional engagement with the first turntable 124, and all friction electromagnets 129 corresponding to the second turntable 125 are in magnetic frictional engagement with the second turntable 125. The sliding piston body 117, the first turntable 124, and the second turntable 125 are insulated from each other; the sliding piston body 117, the first turntable 124, and the second turntable 125 are in a rotationally sealed engagement.

[0030] The working principle of the high dynamic response electromagnetic damping system disclosed in this invention is as follows: When the sealing drive electromagnet 107 is activated, the sealing drive electromagnet 107 generates magnetic force to attract the sealing magnetic ring 106, causing the sealing magnetic ring 106 to contact the sealing drive electromagnet 107, separating the space between the outer cylinder 101 and the bottom sealing cover 105. This prevents the hydraulic oil inside the inner cylinder 103 from flowing through the bottom fluid flow hole 112, the flow damping adjustable pipe 109, and the top fluid flow hole 104. In other words, there is no hydraulic oil flowing in the flow path between the outer cylinder 101 and the inner cylinder 103 (between the inner wall of the outer cylinder 101 and the outer wall of the inner cylinder 103). At this time, the control and adjustment servo motor 120 is activated. The output shaft of the control and adjustment servo motor 120 drives the rotating shaft 121 to rotate. The rotating shaft 121 can drive the two friction electromagnet supports 128 inside the sliding piston body 117 to rotate. Before the control and adjustment servo motor 120 is started, the friction electromagnet 129 corresponding to the first turntable 124 or the second turntable 125 is energized, so that the friction electromagnet 129 generates magnetic force. The friction electromagnet 129 attracts and rubs with the first turntable 124 or the second turntable 125, so that the two friction electromagnet supports 128 form a fixed relationship (friction fixation) with the corresponding first turntable 124 or second turntable 125 through the friction electromagnet 129. At this point, the friction electromagnet 129 corresponding to the first turntable 124 needs to be activated, so that the rotating shaft 121 drives the first turntable 124 to rotate through the friction electromagnet support 128. Since the first turntable 124 has two diameter through holes, when the larger diameter through hole is coaxially aligned with the intermediate fluid flow hole 126, hydraulic oil can pass through the intermediate fluid flow hole 126. That is, when the sliding piston rod 118 is under pressure, the sliding piston body 117 slides on the inner wall of the inner cylinder 103, causing the hydraulic oil to pass through the intermediate fluid flow hole 126. When the smaller through-hole on the first turntable 124 is coaxially aligned with the intermediate hydraulic flow hole 126, the hydraulic oil flow path through the intermediate hydraulic flow hole 126 is reduced. Therefore, the resistance to the sliding piston 117 sliding on the inner wall of the inner cylinder 103 increases. By aligning through-holes of different diameters on the first turntable 124 with the intermediate hydraulic flow hole 126, the resistance of the sliding piston 117 sliding on the inner wall of the inner cylinder 103 can be selected, thereby adjusting the damping force of the overall shock absorber. It should be noted that the through-hole on the second turntable 125 is always aligned with the intermediate hydraulic flow hole 126 to ensure normal hydraulic oil flow. Two sliding conductive contacts 127 are used to monitor the positions of the through-holes on the second turntable 125 and the first turntable 124 (for example, one end of an arc-shaped resistor strip is connected in series with the sliding conductive contact 127 in a DC circuit, and the position of the through-hole on the second turntable 125 and the first turntable 124 is determined by the magnitude of the current in the circuit). This is used to fix several adjustable damping forces (the number of positions depends on the number of through holes of different diameters on the first turntable 124).

[0031] When continuously steplessly adjustable damping is required, the servo motor 120 needs to be controlled. The output shaft of the servo motor 120 drives the rotating shaft 121, which in turn causes the through hole on the second turntable 125 to be offset from the intermediate fluid flow hole 126 (as described above, away from the first turntable 124). This prevents the hydraulic oil on both sides of the sliding piston body 117 from flowing through the intermediate fluid flow hole 126. When the sliding piston rod 118 is under force (external pressure and the elastic force of the spring 122), the sliding piston body 117 will push the hydraulic oil inside the inner cylinder 103 to flow, so that the hydraulic oil flows through the space between the outer cylinder 101 and the inner cylinder 103. Therefore, at this time, the sealing drive electromagnet 107 needs to be de-energized, so that the sealing magnetic ring 106 separates from the sealing drive electromagnet 107 under the tension of the tension spring 108. At this time, the hydraulic oil inside the inner cylinder 103, the outer cylinder 101, and the flow damping adjustable tube 109 can flow. When the sliding piston body 117 moves downward in the inner cylinder 103, the hydraulic oil will be squeezed into the outer cylinder 101 through the bottom liquid flow hole 112 and the flow damping adjustable tube 109. During this process, the hydraulic oil will flow inside the flow damping adjustable tube 109 (the reverse is also the same, except that the flow direction of the hydraulic oil is different). There is also hydraulic oil flowing inside the top liquid flow hole 104. The flow of hydraulic oil applies a force to the damping vane 111, which transmits the force to the vane support 113. The inner wall of the actuation groove 115 on the vane support 113 then compresses the force-sensitive resistor 116. The force-sensitive resistor 116, under this compression, determines the direction of the force on the damping vane 111, i.e., the direction of hydraulic oil flow. Based on this flow direction, the rotation direction and speed of the output shaft of the adjustable control motor 110 are controlled (with millisecond-level control via computer). When the damping vane 111 remains stationary, it exerts a force on the hydraulic oil flowing inside the adjustable damping pipe 109. The resistance force is greatest when the damping blade 111 rotates in the direction of hydraulic oil flow (the direction of force on the damping blade 111 is the same as the direction of hydraulic oil flow), which reduces the resistance to hydraulic oil. The faster the damping blade 111 rotates, the smaller the resistance force (controlled by the output shaft speed of the adjustable control motor 110). This controls the resistance of the sliding piston body 117 sliding inside the inner cylinder 103. Therefore, the damping force of the sliding piston body 117 sliding inside the inner cylinder 103 can be controlled by the output shaft speed of the adjustable control motor 110, realizing the function of stepless continuous adjustable damping.

Claims

1. A high dynamic response electromagnetic vibration damping system, characterized in that: Two coaxially arranged outer cylinders (101) and inner cylinders (103) are provided, wherein the inner cylinder (103) is located inside the outer cylinder (101), and the outer surface of the inner cylinder (103) is fixedly connected to the inner wall of the outer cylinder (101) by an inner cylinder support frame (102); The inner cylinder (103) has multiple top liquid flow holes (104) at its top end and a bottom liquid flow hole (112) at its bottom end. A flow damping adjustable tube (109) is provided at the bottom liquid flow hole (112), and the flow damping adjustable tube (109) is fixedly and sealed to the inner cylinder (103). A blade support body (113) is rotatably installed inside the flow damping adjustable tube (109), and damping blades (111) are fixed on the circumferential surface of the blade support body (113). The blade support (113) is driven to rotate by the output shaft of the adjustable control motor (110). The adjustable control motor (110) is fixedly installed on the bottom sealing cover (105). The bottom sealing cover (105) is fixedly sealed to the bottom of the outer cylinder (101) in a way that is easy to disassemble, so that the bottom sealing cover (105) is connected to the inside of the outer cylinder (101). Hydraulic oil is connected inside the outer cylinder (101), inner cylinder (103), bottom sealing cover (105), and flow damping adjustable pipe (109). A sealing drive electromagnet (107) is fixedly installed at the bottom of the inner cylinder (103). A sealing magnetic ring (106) is magnetically fitted below the sealing drive electromagnet (107). The sealing magnetic ring (106) is slidably installed on the inner wall of the bottom sealing cover (105). The circumferential surface of the sealing drive electromagnet (107) and the inner wall of the bottom sealing cover (105) are slidably sealed by the sealing magnetic ring (106). The sealing magnetic ring (106) is used to block the flow space between the flow damping adjustable pipe (109) and the outer cylinder (101) and the inner cylinder (103).

2. The high dynamic response electromagnetic vibration damping system according to claim 1, characterized in that: A tension spring (108) is fixedly installed between the sealing magnetic ring (106) and the bottom surface of the inner wall of the bottom sealing cover (105). The tension spring (108) is used to pull the sealing magnetic ring (106) to move away from the sealing drive electromagnet (107). The tension spring (108) is arranged around the outside of the adjustable control motor (110).

3. The high dynamic response electromagnetic vibration damping system according to claim 2, characterized in that: Two symmetrically arranged actuating force plates (114) are fixedly installed on the output shaft of the adjustable control motor (110); the blade support body (113) has two actuating grooves (115) along its radial direction, and the two actuating force plates (114) are respectively arranged in the two actuating grooves (115). A force-sensitive resistor (116) is overlapped between the two sides of each actuating force plate (114) and the actuating groove (115). The force-sensitive resistor (116) is used to monitor the transmission force between the blade support body (113) and the actuating force plate (114). The output shaft of the adjustable control motor (110) can rotate with respect to the blade support (113), but cannot move relative to the axial direction. The output shaft of the adjustable control motor (110) drives the blade support (113) to rotate through two actuating force plates (114) and actuating grooves (115).

4. The high dynamic response electromagnetic vibration damping system according to claim 3, characterized in that: A sliding piston body (117) is slidably sealed on the inner wall of the inner cylinder (103). The sliding piston body (117) is fixedly installed at the bottom end of the sliding piston rod (118). The sliding piston rod (118) and the sliding piston body (117) are coaxially arranged. The sliding piston rod (118) is slidably sealed to the top end of the inner cylinder (103). An adjustment servo motor support shell (119) is fixedly installed at the top end of the sliding piston rod (118). A spring (122) is fixedly installed between the adjustment servo motor support shell (119) and the top end of the outer surface of the outer cylinder (101). The spring (122) is arranged around the outside of the sliding piston rod (118). A dustproof corrugated pipe (123) is sleeved on the outside of the spring (122). The two ends of the dustproof corrugated pipe (123) are fixed to the adjustment servo motor support shell (119) and the outer cylinder (101).

5. The high dynamic response electromagnetic vibration damping system according to claim 4, characterized in that: An adjustable servo motor (120) is fixedly installed inside the adjustable servo motor support housing (119). A rotating shaft (121) is fixedly installed on the output shaft of the adjustable servo motor (120). The rotating shaft (121) is rotatably inserted into the internal axis position of the sliding piston rod (118), and the bottom end of the rotating shaft (121) extends into the interior of the sliding piston body (117).

6. The high dynamic response electromagnetic vibration damping system according to claim 5, characterized in that: The sliding piston body (117) is rotatably mounted with a first turntable (124) and a second turntable (125) in the axial direction. The sliding piston body (117) is provided with a plurality of intermediate liquid flow holes (126). All the intermediate liquid flow holes (126) are arranged in a circular equidistant array on the sliding piston body (117), and the axis of all the intermediate liquid flow holes (126) is parallel to the axis of the sliding piston body (117).

7. A high dynamic response electromagnetic vibration damping system according to claim 6, characterized in that: The second turntable (125) has the same number and diameter of through holes as the intermediate liquid flow hole (126); the first turntable (124) has two diameters of through holes, and the number of each diameter of through holes is the same as that of the intermediate liquid flow hole (126). Both the second turntable (125) and the first turntable (124) are provided with arc-shaped resistance bars. The sliding piston body (117) is provided with two sliding conductive contacts (127) that are respectively slidably conductive to the two arc-shaped resistance bars, which are used to monitor the rotational position angle of the first turntable (124) and the second turntable (125) inside the sliding piston body (117).

8. A high dynamic response electromagnetic vibration damping system according to claim 7, characterized in that: Both the second turntable (125) and the first turntable (124) are rotatably fitted with friction electromagnet supports (128) at their axial positions. Both friction electromagnet supports (128) are fixedly fitted with the rotating shaft (121). Each friction electromagnet support (128) has multiple friction electromagnets (129) slidably installed along its own radial direction in an embedded manner. All friction electromagnets (129) corresponding to the first turntable (124) are magnetically frictionally fitted with the first turntable (124), and all friction electromagnets (129) corresponding to the second turntable (125) are magnetically frictionally fitted with the second turntable (125).

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