A track type rotary non-linear energy sink with stiffness, damping, inertia and multiple parameters adjustable

Abstract

The present application relates to a kind of track type rotary nonlinear energy sink with stiffness damping inertia multi-parameter adjustable, input shaft energy is transmitted to NES disc through connecting rod, then dissipates through damper again.The device is moved on track by input rod driving connecting rod, connecting rod other end compresses spring and damper, to generate nonlinear stiffness and nonlinear damping, ECU controls the angle of track deflection through gear, to realize nonlinear stiffness and nonlinear damping adjustable;ECU controls the position of rack on NES disc, to realize the adjustable of rotational inertia;Sensor is used for real-time monitoring torsional vibration amplitude and angular velocity feedback ECU to carry out parameter adjustment.The present application patent realizes the continuous adjustable of nonlinear stiffness and nonlinear damping by changing rotary track angle, realizes the continuous adjustable of rotational inertia by changing the distance between the centroid of rack and the center of NES disc rotation, simple in manufacture and assembly, low in cost, widen the implementation mode of nonlinear energy sink, with good engineering application value.

Description

Technical Field

[0001] This invention belongs to the field of vibration and noise control technology, specifically relating to an orbital rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters. Background Technology

[0002] Vibration is prevalent in the operation of rotating machinery. Excessive vibration amplitude can cause damage to rotating machinery, posing a typical hazard to its stable operation. How to reduce the negative impacts of vibration and ensure the normal operation of rotating machinery has become an important research topic. Nowadays, rotating machinery operates under complex conditions, and vibration must be suppressed to ensure its stable operation. Based on different control principles, vibration control methods can be divided into three types: passive control, semi-active control, and active control. Nonlinear energy sinks (NES), as a nonlinear vibration control technology, have attracted considerable attention due to their wide vibration reduction bandwidth. Nonlinear energy sinks are a passive control technology, mainly composed of three parts: a relatively light added mass, strong nonlinear stiffness, and damping elements. Among passive control technologies, NES has excellent vibration suppression effects due to its wide vibration reduction bandwidth, small added mass, strong robustness, and high reliability.

[0003] For rotating machinery, it is necessary to design a rotating nonlinear energy sink for vibration reduction. Existing structures include rotating gap type, rotating wire type, and rotating magnetic type nonlinear energy sinks, but few structures can achieve continuous adjustment of nonlinear stiffness and nonlinear damping. To address the shortcomings of existing technologies, this invention proposes a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters. An ECU controls a gear-controlled track deflection mechanism to continuously adjust the angle between the track and the input rod, achieving continuous adjustment of nonlinear stiffness and nonlinear damping. Controlling the rack to move along the slide groove changes the distance from the rack's center of mass to the center of rotation, making its rotational inertia adjustable. Summary of the Invention

[0004] To address the shortcomings and defects of existing technologies, this invention proposes a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters. This device has a simple structure and is easy to operate. Without replacing or disassembling the structure, the nonlinear stiffness, nonlinear damping, and rotational inertia of the device can be continuously controlled via sensor data, ensuring that all NES-related parameters reach optimal values, thereby achieving the best vibration reduction effect. This rotating nonlinear energy sink is suitable for vibration suppression of rotating machinery structures and rotor systems.

[0005] The present invention proposes an orbital rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters, which achieves the above-mentioned technical objectives by utilizing the following technical means.

[0006] A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters comprises a first ECU (1), an internal gear shaft (2), a sensor (3), a second ECU (4), bolt A (5), bolt B (6), a slide A (7), a track A (8), bolt C (9), a connecting rod A (10), bolt D (11), a spring A (12), a damper A (13), a slider A (14), bolt E (15), a slide B (16), an NES disk (17), an input rod (18), a slide C (19), a slider B (20), and bolt F (21). Spring B (22), damper B (23), bolt G (24), bolt H (25), connecting rod B (26), track B (27), first driven gear (28), external gear shaft (29), gear A (30), second driven gear (31), gear B (32), input shaft (33), bearing (34), washer (35), retaining ring (36), upper pin head (37), piston rod (39), housing (40), lower pin head (41), slider C (42), slider D (43), bolt I (44), bolt J (45), rack (46);

[0007] The input shaft (33) can rotate around its axis and transmit the rotational speed and torque of the external system. The axis of the input shaft (33) is parallel to and offset from the axes of the internal gear shaft (2) and the external gear shaft (29).

[0008] The input shaft (33) is connected to the input rod (18) and is located on the same axis. The input rod is fixed by a washer (35) and a retaining ring (36). The input shaft (33) can drive the input rod (18) to rotate synchronously around the axis.

[0009] The input shaft (33) is connected to the NES disk (17) via a bearing (34) and is located on the same axis. The NES disk (17) is fixed to the input shaft (33) by a washer (35). The NES disk (17) can rotate around the axis.

[0010] In one embodiment, the slides B (16) and C (19) are arranged symmetrically about the input rod; bolts C (9) and E (15) fix slide B (16) to the NES disk (17); bolts F (21) and G (24) fix slide C (19) to the NES disk (17);

[0011] In one embodiment, the slider A (14) is connected to the spring A (12) and the damper A (13) by bolt D (11) and can slide in the groove B (16); the slider B (20) is connected to the spring B (22) and the damper B (23) by bolt H (25) and can slide in the groove C (19);

[0012] In one embodiment, damper A (13) and damper B (23) are both composed of an upper pin (37), a piston rod (39), a housing (40), and a lower pin (41). Damper A (13) fixes the upper pin (37) to the slide groove B (16) by bolt C (9) and fixes the lower pin (41) to the slider A (14) by bolt D (11); Damper B (23) fixes the upper pin (37) to the slide groove C (19) by bolt F (21) and fixes the lower pin (41) to the slider B (20) by bolt H (25).

[0013] In one embodiment, one end of the connecting rod A (10) is connected to the spring A (12) and the damper A (13) by bolt D (11), and the other end is connected to the track A (8), and can slide within the track A (8); one end of the connecting rod B (26) is connected to the spring B (22) and the damper B (23) by bolt H (25), and the other end is connected to the track B (27), and can slide within the track B (27);

[0014] The internal gear shaft (2) and the external gear shaft (29) are located on the same axis; one end of the internal gear shaft (2) is connected to the second driven gear (31), and the other end is connected to the track A (8), and they can rotate synchronously around the axis; one end of the external gear shaft (29) is connected to the first driven gear (28), and the other end is connected to the track B (27), and they can rotate synchronously around the axis;

[0015] The slide A (7) is fixed to the NES disk (17) by bolts I (44) and J (45). The slide is symmetrical about the input rod (18) and perpendicular to the input rod (18).

[0016] The sliders C (42) and D (43) can move freely within the groove A (7);

[0017] The rack (46) is connected to the slider C (42) and slider D (43) by bolts A (5) and B (6) respectively;

[0018] In one embodiment, the input rod (18) is in contact with the connecting rod A (10) and the connecting rod B (26). When the input rod (18) rotates clockwise with the input shaft (33), the input rod (18) pushes the connecting rod A (10) to move on the track A (8), and the spring A (12) and the damper A (13) are compressed under the movement of the connecting rod A (10). When the input rod (18) rotates counterclockwise with the input shaft (33), the input rod (18) pushes the connecting rod B (26) to move on the track B (27), and the spring B (22) and the damper B (23) are compressed under the movement of the connecting rod B (26).

[0019] In one embodiment, the first driven gear (28), the second driven gear (31), and gear B (32) are composed of meshing spur bevel gears, and the basic parameters of the gears, such as module, thickness, pressure angle, and number of teeth, are the same; the shafts to which the gears are connected are different, and the nominal shaft diameters are different. To prevent impact, noise, and idle travel, minimum tooth flank clearance is applied while meeting lubrication and normal operating temperatures.

[0020] In one embodiment, the gear A (30) and the rack (46) are gear rack mating, and the basic parameters such as the module, thickness, and pressure angle of the gear rack are the same.

[0021] In one embodiment, the gear A (30) rotates under the control of the second ECU (4). The gear A (30) meshes with the rack (46), driving the rack (46), slider C (42) and slider D (43) to move along the slide groove A (7). This adjusts the distance between the center of mass of the rack (46) and the rotation center of the NES disk (17), thereby changing the moment of inertia of this nonlinear energy sink. This makes the moment of inertia of the nonlinear energy sink adjustable, thus giving the nonlinear energy sink better vibration reduction performance.

[0022] In one embodiment, the hardness of the rack (46) should be greater than that of the gear A (30) to ensure that the rack (46) is not weakened by the gear A (30). The rack (46) should have a large mass to meet the requirement of adjustable moment of inertia, and the material should be high-strength steel.

[0023] In one embodiment, the stiffness of the nonlinear energy sink is achieved by the movement of connecting rods A (10) and B (26) on tracks A (8) and B (27). One end of the connecting rod compresses a spring and a damper, thereby achieving essentially nonlinear stiffness and nonlinear damping. The system transmits energy from the input rod (18) to the NES disk (17) through the spring and dissipates the energy through the damper.

[0024] In one embodiment, the bolts A (5), B (6), E (15), F (21), G (24), H (25), I (44), and J (45) are threaded with the corresponding connecting parts, and the thread profile, pitch, and direction of rotation are consistent.

[0025] In one embodiment, the spring A (12), damper A (13), spring B (22), and damper B (23) should have the characteristics of high strength, stable operation, and not easy wear.

[0026] In one embodiment, gear B (32) drives the first driven gear (28) and the second driven gear (31) to rotate synchronously around their respective axes under the control of the first ECU (1). The first driven gear (28) drives the track B (27) to rotate, and the second driven gear (31) drives the track A (8) to rotate, thereby realizing the synchronous reverse rotation of track A (8) and track B (27) and having opposite steering angles. The angle between track A (8) and track B (27) and the input rod (18) changes, further realizing the variable nonlinear stiffness and nonlinear damping.

[0027] The present invention provides an orbital rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters. Compared with the prior art, the beneficial effects achieved are as follows:

[0028] 1. This device transmits power by pushing a connecting rod to move within an offset track, transferring the energy of the input shaft to a rotating nonlinear energy sink, and dissipating the energy through a damper. Compared with traditional nonlinear energy sinks, it broadens the ways to realize nonlinear energy sinks in rotating machinery, and also broadens the realization forms of nonlinear stiffness and nonlinear damping of rotating nonlinear energy sinks.

[0029] 2. By analyzing the data collected by the sensors, the ECU calculates the required optimal nonlinear stiffness, nonlinear damping, and moment of inertia. It can then control the gear-controlled track deflection mechanism, further driving a pair of gear bevels to rotate in opposite directions, thus changing the track deflection angle and achieving continuous adjustment of nonlinear stiffness and nonlinear damping. On the other hand, the ECU can also control the gear rack mechanism, changing the distance between the rack's center of mass and the rotation center of the NES disk, thereby achieving continuous adjustment of the moment of inertia and enabling the nonlinear energy sink to have better vibration reduction performance. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0031] Figure 1 This is a three-dimensional isometric drawing of a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters, as described in this invention.

[0032] Figure 2 This is a three-dimensional isometric view of the input axis of an orbital rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters as described in this invention.

[0033] Figure 3 This is a front view of a spring and damper for a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters, as described in this invention.

[0034] Figure 4 This is a front view of the chute and slider of a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to the present invention.

[0035] Figure 5 This is a front view of the slide and rack of a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to the present invention.

[0036] Figure 6 This is a three-dimensional top view of a track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters as described in this invention.

[0037] Figure 7 This is a flowchart of the present invention.

[0038] [Explanation of Labels in the Attached Image]

[0039] 1-First ECU; 2-Internal gear shaft; 3-Sensor; 4-Second ECU; 5-Bolt A; 6-Bolt B; 7-Slide A; 8-Rail A; 9-Bolt C; 10-Connecting rod A; 11-Bolt D; 12-Spring A; 13-Damper A; 14-Slider A; 15-Bolt E; 16-Slide B; 17-NES disk; 18-Input rod; 19-Slide C; 20-Slider B; 21-Bolt F; 22-Spring B; 23-Damper B; 24-Bolt G; 25-Bolt H; 26-Connecting rod B; 27-Rail B; 28-First driven gear; 29-External gear shaft; 30-Gear A; 31-Second driven gear; 32-Gear B; 33-Input shaft; 34-Bearing; 35-Washer; 36-Retaining ring; 37-Upper pin; 39-Piston rod; 40-Housing; 41-Lower pin; 42-Slider C; 43-Slider D; 44-Bolt I; 45-Bolt J; 46-Rack. Detailed Implementation

[0040] The present invention will be further described clearly and completely below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0041] In this invention, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or a connection through an intermediate medium, such as a screw or nut. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0042] A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters comprises a first ECU (1), an internal gear shaft (2), a sensor (3), a second ECU (4), bolt A (5), bolt B (6), a slide A (7), a track A (8), bolt C (9), a connecting rod A (10), bolt D (11), a spring A (12), a damper A (13), a slider A (14), bolt E (15), a slide B (16), an NES disk (17), an input rod (18), a slide C (19), a slider B (20), and bolt F (21). Spring B (22), damper B (23), bolt G (24), bolt H (25), connecting rod B (26), track B (27), first driven gear (28), external gear shaft (29), gear A (30), second driven gear (31), gear B (32), input shaft (33), bearing (34), washer (35), retaining ring (36), upper pin head (37), piston rod (39), housing (40), lower pin head (41), slider C (42), slider D (43), bolt I (44), bolt J (45), rack (46).

[0043] like Figure 2 The input shaft (33) can rotate around its axis and transmit the speed and torque of the external system. The axis of the input shaft (33) is parallel to and offset from the axes of the internal gear shaft (2) and the external gear shaft (29).

[0044] like Figure 2 The input shaft (33) is connected to the input rod (18) and is located on the same axis. The input rod is fixed by a washer (35) and a retaining ring (36). The input shaft (33) can drive the input rod (18) to rotate synchronously around the axis.

[0045] like Figure 2 The input shaft (33) is connected to the NES disk (17) via a bearing (34) and is located on the same axis. The NES disk (17) is fixed to the input shaft (33) by a washer (35). The NES disk (17) can rotate relative to the axis.

[0046] like Figure 1 The slides B (16) and C (19) are arranged symmetrically about the input rod; bolts C (9) and E (15) fix slide B (16) to the NES disk (17); bolts F (21) and G (24) fix slide C (19) to the NES disk (17).

[0047] like Figure 1The slider A (14) is connected to the spring A (12) and the damper A (13) by the bolt D (11) and can slide in the groove B (16); the slider B (20) is connected to the spring B (22) and the damper B (23) by the bolt H (25) and can slide in the groove C (19).

[0048] like Figure 1 The spring A (12) and damper A (13) are fixed to the slide groove B (16) by one end of bolt C (9) and to the slider A (14) by one end of bolt D (11); the spring B (22) and damper B (23) are fixed to the slide groove C (19) by one end of bolt F (21) and to the slider B (20) by one end of bolt H (25).

[0049] like Figure 1 One end of the connecting rod A (10) is connected to the spring A (12) and the damper A (13) by the bolt D (11), and the other end is connected to the track A (8), which can slide within the track A (8); one end of the connecting rod B (26) is connected to the spring B (22) and the damper B (23) by the bolt H (25), and the other end is connected to the track B (27), which can slide within the track B (27).

[0050] like Figure 1 The internal gear shaft (2) and the external gear shaft (29) are located on the same axis; one end of the internal gear shaft (2) is connected to the second driven gear (31), and the other end is connected to the track A (8), and can rotate synchronously around the axis; one end of the external gear shaft (29) is connected to the first driven gear (28), and the other end is connected to the track B (27), and can rotate synchronously around the axis.

[0051] like Figure 1 and Figure 5 The slide A (7) is fixed to the NES disk (17) by bolts I (44) and J (45). The slide is symmetrical about the input rod (18) and perpendicular to the input rod (18).

[0052] like Figure 1 and Figure 4 The sliders C (42) and D (43) can move freely within the groove A (7).

[0053] like Figure 1 , Figure 4 and Figure 5 The rack (46) is connected to the slider C (42) and slider D (43) by bolts A (5) and B (6) respectively.

[0054] like Figure 1The input rod (18) is in contact with the connecting rod A (10) and the connecting rod B (26). When the input rod (18) rotates clockwise with the input shaft (33), the input rod (18) pushes the connecting rod A (10) to move on the track A (8), and the spring A (12) and the damper A (13) are compressed under the movement of the connecting rod A (10). When the input rod (18) rotates counterclockwise with the input shaft (33), the input rod (18) pushes the connecting rod B (26) to move on the track B (27), and the spring B (22) and the damper B (23) are compressed under the movement of the connecting rod B (26).

[0055] The first driven gear (28), the second driven gear (31), and gear B (32) are composed of meshing spur bevel gears. The basic parameters of the gears, such as module, thickness, pressure angle, and number of teeth, are the same. The shafts to which the gears are connected are different, and the nominal shaft diameters are different. To prevent impact, noise, and idle travel, minimum tooth backlash is applied while meeting lubrication and normal operating temperatures.

[0056] like Figure 1 and Figure 5 The gear A (30) and the rack (46) are gear and rack meshed, and the basic parameters such as the module, thickness, and pressure angle of the gear and rack are the same.

[0057] The gear A (30) rotates under the control of the second ECU (4). The gear A (30) drives the rack (46), slider C (42) and slider D (43) to move along the slide groove A (7), adjusting the distance between the center of mass of the rack (46) and the rotation center of the NES disk (17), thereby changing the rotational inertia of this nonlinear energy sink, realizing the adjustable rotational inertia of the nonlinear energy sink, and thus making the nonlinear energy sink have better vibration reduction performance.

[0058] Furthermore, under the control of the first ECU (1), the gear B (32) drives the first driven gear (28) and the second driven gear (31) to rotate synchronously around their respective axes. The first driven gear (28) drives the track B (27) to rotate, and the second driven gear (31) drives the track A (8) to rotate, thereby realizing the synchronous reverse rotation of track A (8) and track B (27). The angle between track A (8), track B (27) and input rod (18) changes, further realizing the variable nonlinear stiffness and nonlinear damping.

[0059] The hardness of the rack (46) should be greater than that of the gear A (30) to ensure that the rack (46) is not weakened by the gear A (30). The rack (46) should have a large mass to meet the characteristics of adjustable moment of inertia, and the material should be high-strength steel.

[0060] The stiffness of the nonlinear energy sink is achieved by the movement of connecting rods A (10) and B (26) on tracks A (8) and B (27). One end of the connecting rod compresses the spring and damper, thereby achieving essentially nonlinear stiffness and nonlinear damping. The system transmits energy from the input rod (18) to the NES disk (17) through the spring and dissipates the energy through the damper.

[0061] The bolts A (5), B (6), E (15), F (21), G (24), H (25), I (44), and J (45) are threaded with the corresponding connecting parts, and the thread profile, pitch, and direction of rotation are consistent.

[0062] The spring A (12), damper A (13), spring B (22), and damper B (23) should have the characteristics of high strength, stable operation, and not easy wear.

[0063] The following section further explains the working process of this rotating nonlinear energy sink, such as... Figure 7 As shown, the flowchart for adjusting the rotational nonlinear energy sink parameters based on the torsional vibration amplitude and angular velocity includes the following steps:

[0064] Step 1: Import the basic structural parameters of the rotational nonlinear energy sink torsional vibration into the first ECU (1) and the second ECU (4), and at the same time, the sensor (3) sends the collected input shaft running information data to the first ECU (1) and the second ECU (4).

[0065] Step 2: The first ECU (1) processes the sensor data and calculates the nonlinear stiffness and nonlinear damping suitable for the current working conditions;

[0066] Step 3: The first ECU (1) sends a command to control gear B (32) to rotate, which drives the first driven gear (28) and the second driven gear (31) to rotate in opposite directions by the same angle, thus adjusting the angle of the track;

[0067] Step 4: The second ECU (4) processes the sensor data and calculates the moment of inertia suitable for the current working conditions;

[0068] Step 5: The second ECU (4) issues a command to control the rotation of gear A (30) and adjust the distance between the center of mass of the rack and the center of the input shaft (33);

[0069] Step 6: Sensor (3) continues to collect system operation information data. The first ECU (1) and the second ECU (4) provide feedback and evaluation of the information. If adjustments are needed, proceed to step 2.

[0070] Step 7: If the system torsional vibration ends, end this service; otherwise, proceed to Step 1.

[0071] The specific work process is as follows:

[0072] When the track-type rotating nonlinear energy sink starts working, the first ECU (1) and the second ECU (4) import the basic parameters of the rotating nonlinear energy sink. The operating condition information such as the rotational speed and torque of the input shaft (33) collected by the sensor (3) is also transmitted to the first ECU (1) and the second ECU (4). If the input shaft (33) rotates clockwise, it drives the input rod (18) to rotate clockwise synchronously. The input rod (18) pushes the connecting rod A (10) to move along the track A (8). The other end of the connecting rod A (10) compresses the spring A (12) and the damper A (13). If the input shaft (33) rotates counterclockwise, it drives the input rod (18) to rotate counterclockwise synchronously. The input rod (18) pushes the connecting rod B (26) to move along the track B (27). The other end of the connecting rod B (26) compresses the spring B (22) and the damper B (23). The first ECU (1) and the second ECU (4) calculate the nonlinear stiffness, nonlinear damping and moment of inertia suitable for the working condition based on the working condition information collected by the sensor (3).

[0073] The first ECU (1) issues a command to control gear B (32) to drive the first driven gear (28) and the second driven gear (31) to rotate synchronously around their respective axes. The first driven gear (28) drives the track B (27) to rotate, and the second driven gear (31) drives the track A (8) to rotate, thereby realizing the synchronous reverse rotation of track A (8) and track B (27) and having opposite steering angles. The angle between track A (8) and track B (27) and the input rod (18) changes.

[0074] Furthermore, the second ECU (4) issues a command to control the rotation of gear A (30), gear A (30) meshes with rack (46), driving rack (46), slider C (42) and slider D (43) to move along slide groove A (7), adjusting the distance between the center of mass of rack (46) and the rotation center of NES disk (17).

[0075] In this specification, the above illustrations are merely examples or embodiments of the present invention, but the present invention is not limited to these embodiments. Various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and objectives of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters, characterized in that, Includes first ECU (1), internal gear shaft (2), sensor (3), second ECU (4), bolt A (5), bolt B (6), slide A (7), rail A (8), bolt C (9), connecting rod A (10), bolt D (11), spring A (12), damper A (13), slider A (14), bolt E (15), slide B (16), NES disk (17), input rod (18), slide C (19), slider B (20), bolt F (21) ), Spring B (22), Damper B (23), Bolt G (24), Bolt H (25), Connecting rod B (26), Rail B (27), First driven gear (28), External gear shaft (29), Gear A (30), Second driven gear (31), Gear B (32), Input shaft (33), Bearing (34), Washer (35), Retaining ring (36), Slider C (42), Slider D (43), Bolt I (44), Bolt J (45) and Rack (46); The dampers A (13) and B (23) are both composed of an upper pin (37), a piston rod (39), a housing (40), and a lower pin (41). The upper pin (37) of the damper A (13) is fixed to the slide groove B (16) by bolt C (9), and the lower pin (41) is fixed to the slider A (14) by bolt D (11). The upper pin (37) of the damper B (23) is fixed to the slide groove C (19) by bolt F (21), and the lower pin (41) is fixed to the slider B (20) by bolt H (25). The gear A (30) rotates under the control of the second ECU (4). The gear A (30) drives the rack (46), slider C (42) and slider D (43) to move along the slide groove A (7), adjusting the distance between the center of mass of the rack (46) and the rotation center of the NES disk (17), thereby changing the rotational inertia of this nonlinear energy sink, realizing the adjustable rotational inertia of the nonlinear energy sink, and thus making the nonlinear energy sink have better vibration reduction performance. Under the control of the first ECU (1), the gear B (32) drives the first driven gear (28) and the second driven gear (31) to rotate synchronously around their respective axes. The first driven gear (28) drives the track B (27) to rotate, and the second driven gear (31) drives the track A (8) to rotate, thereby realizing the synchronous reverse rotation of track A (8) and track B (27). The angle between track A (8) and input rod (18) changes, and the angle between track B (27) and input rod (18) changes. Furthermore, the variable nonlinear stiffness and nonlinear damping are realized. The input shaft (33) can rotate around the axis of the input shaft (33) and transmit the speed and torque of the external system. The axis of the input shaft (33) is parallel to and offset from the axes of the internal gear shaft (2) and the external gear shaft (29). The input shaft (33) and the input rod (18) are connected on the axis of the input shaft (33). The input rod is fixed by a washer (35) and a retaining ring (36). The input shaft (33) can drive the input rod (18) to rotate synchronously around the axis of the input shaft (33). The input shaft (33) is connected to the NES disk (17) on the axis of the input shaft (33) via a bearing (34). The NES disk (17) is fixed to the input shaft (33) by a washer (35). The NES disk (17) can rotate relative to the axis of the input shaft (33). The slides B (16) and C (19) are arranged symmetrically about the input rod; bolts C (9) and E (15) fix slide B (16) to the NES disk (17); bolts F (21) and G (24) fix slide C (19) to the NES disk (17); The slider A (14) is connected to the spring A (12) and the damper A (13) by the bolt D (11) and can slide in the groove B (16); the slider B (20) is connected to the spring B (22) and the damper B (23) by the bolt H (25) and can slide in the groove C (19); One end of the spring A (12) and damper A (13) is fixed to the slide groove B (16) by bolt C (9), and the other end is fixed to the slider A (14) by bolt D (11); one end of the spring B (22) and damper B (23) is fixed to the slide groove C (19) by bolt F (21), and the other end is fixed to the slider B (20) by bolt H (25); One end of the connecting rod A (10) is connected to the spring A (12) and the damper A (13) by bolt D (11), and the other end is connected to the track A (8), which can slide within the track A (8); one end of the connecting rod B (26) is connected to the spring B (22) and the damper B (23) by bolt H (25), and the other end is connected to the track B (27), which can slide within the track B (27); The internal gear shaft (2) and the external gear shaft (29) are located on the same axis; one end of the internal gear shaft (2) is connected to the second driven gear (31), and the other end is connected to the track A (8), and they can rotate synchronously around the axis; one end of the external gear shaft (29) is connected to the first driven gear (28), and the other end is connected to the track B (27), and they can rotate synchronously around the axis; The slide A (7) is fixed to the NES disk (17) by bolts I (44) and J (45). The slide A (7) is symmetrical about the input rod (18) and perpendicular to the input rod (18). The sliders C (42) and D (43) can move freely within the groove A (7); The rack (46) is connected to the slider C (42) and slider D (43) by bolts A (5) and B (6) respectively. The sensor (3) sends the collected input shaft running information data to the first ECU (1) and the second ECU (4).

2. The orbital rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, In the initial state, the input rod (18) is in contact with the connecting rod A (10) and the connecting rod B (26). When the input rod (18) rotates clockwise with the input shaft (33), the input rod (18) pushes the connecting rod A (10) to move on the track A (8), and the spring A (12) and the damper A (13) are compressed under the movement of the connecting rod A (10). When the input rod (18) rotates counterclockwise with the input shaft (33), the input rod (18) pushes the connecting rod B (26) to move on the track B (27), and the spring B (22) and the damper B (23) are compressed under the movement of the connecting rod B (26).

3. The orbital rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, The first driven gear (28), the second driven gear (31) and gear B (32) are composed of meshing spur bevel gears. The spur bevel gears have the same module, thickness, pressure angle and number of teeth. The shafts connected to the spur bevel gears are different and have different nominal shaft diameters. To prevent impact, noise and idle stroke, the minimum tooth backlash is applied while meeting the requirements of lubrication and normal operating temperature.

4. A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, The gear A (30) and the rack (46) are gear and rack meshed, and the gear and rack have the same module, thickness and pressure angle.

5. A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, The hardness of the rack (46) should be greater than that of the gear A (30) to ensure that the rack (46) is not weakened by the gear A (30). The rack (46) should have a large mass to meet the characteristics of adjustable rotational inertia. The material is high-strength steel.

6. A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, The stiffness of the nonlinear energy sink is achieved by the movement of connecting rod A (10) and connecting rod B (26) on track A (8) and track B (27). One end of connecting rod A (10) compresses spring A (12) and damper A (13), and one end of connecting rod B (26) compresses spring B (22) and damper B (23), thereby achieving essentially nonlinear stiffness and nonlinear damping. The system transmits energy from input rod (18) to NES disk (17) through springs and dissipates energy through dampers.

7. A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, Bolts A (5), B (6), E (15), F (21), G (24), H (25), I (44), and J (45) are threaded with the corresponding connecting parts, and the thread profile, pitch, and direction of rotation are consistent.

8. A track-type rotating nonlinear energy sink with adjustable stiffness, damping, and inertia parameters according to claim 1, characterized in that, The spring A (12), damper A (13), spring B (22) and damper B (23) should have the characteristics of high strength, stable operation and not easy wear.

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