Optical response-based capsule vibration isolation system

Abstract

This invention provides a photoresponse-based capsule vibration isolation system, belonging to the field of vibration isolation devices, comprising: a vibration isolation capsule, including a light guiding unit and a photoresponse solution; wherein, the light guiding unit is disposed on the upper surface of the vibration isolation capsule and extends into the interior of the vibration isolation capsule along the axial direction of the vibration isolation capsule, the light guiding unit is configured to receive light signals via the upper surface of the vibration isolation capsule and guide the light signals into the interior of the vibration isolation capsule; the photoresponse solution includes a photoresponse polymer material, the photoresponse polymer material is configured to isomerize under the action of the light signal to change the damping of the photoresponse solution, so as to isolate the elastic waves of the vibration source.

Description

Technical Field

[0001] This invention relates to the field of vibration isolation devices, and more specifically, to a photoresponse-based capsule vibration isolation system. Background Technology

[0002] The vibration hazards from subways and other rail transit systems are increasing and have become an issue that cannot be ignored. Given the increasing density of road networks and the shrinking availability of suitable vibration isolation sites, existing vibration isolation methods have various shortcomings and cannot meet the requirements. For example, open-air vibration isolation trenches are prone to collapse, wave damping plates have limited isolation efficiency, and filled trenches have limited adjustment capabilities and cannot achieve real-time response to different excitations.

[0003] Therefore, there is an urgent need to propose a new vibration isolation method to achieve efficient and intelligent vibration isolation. Summary of the Invention

[0004] In view of this, the present invention provides a capsule vibration isolation system based on light response.

[0005] One aspect of the present invention provides a photoresponse-based capsule vibration isolation system, comprising: a vibration isolation capsule, including a light guiding unit and a photoresponse solution; wherein the light guiding unit is disposed on the upper surface of the vibration isolation capsule and extends into the interior of the vibration isolation capsule along the axial direction of the vibration isolation capsule, the light guiding unit being configured to receive light signals via the upper surface of the vibration isolation capsule and guide the light signals into the interior of the vibration isolation capsule; the photoresponse solution includes a photoresponse polymer material, the photoresponse polymer material being configured to isomerize under the action of the light signal to change the damping of the photoresponse solution, so as to isolate the elastic waves of the vibration source.

[0006] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a light control device disposed on the top of the vibration isolation bladder to cover the upper surface of the vibration isolation bladder, configured to change the blocking area of ​​the light control device against external light under the control of a first control signal, so as to adjust the intensity of the light signal received by the light guide unit.

[0007] According to an embodiment of the present invention, the inner sidewall of the vibration isolation bladder is coated with a photoresponsive polymer film, which is configured to change the elastic modulus and damping performance of the sidewall of the vibration isolation bladder based on isomerization under light irradiation.

[0008] According to an embodiment of the present invention, the sidewall of the vibration isolation bladder is configured to extend and retract in the vertical direction, and the internal volume of the vibration isolation bladder is adjusted by extending and retracting the sidewall to change the light energy density inside the vibration isolation bladder.

[0009] According to an embodiment of the present invention, the surface of the light guiding unit is provided with a concave-convex structure to increase the contact area between the light guiding unit and the photoresponsive solution.

[0010] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a light detection device disposed around the vibration isolation bladder and electrically connected to the vibration isolation bladder, the light detection device being configured to detect the light intensity of external light and generate a first control signal based on the light intensity.

[0011] According to an embodiment of the present invention, the capsule isolation system further includes: a solution detection device disposed on the lower surface inside the isolation capsule and immersed in a photoresponsive solution, the solution detection device being configured to detect the degree of isomerization of the photoresponsive polymer material in the photoresponsive solution under target illumination conditions, so as to replace the photoresponsive solution based on the degree of isomerization.

[0012] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a gas pressure control device connected to the upper surface of the vibration isolation bladder via a conduit, the gas pressure control device being configured to change the gas pressure inside the vibration isolation bladder under the control of a second control signal, thereby changing the gas-liquid mixing ratio of the gas and the photoresponsive solution inside the vibration isolation bladder; wherein the gas and the photoresponsive solution form a two-phase system, and the two-phase system is configured to change the stiffness and damping characteristics of the two-phase system based on the gas-liquid mixing ratio.

[0013] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a first wave characteristic sensor, which is closer to the vibration source than the vibration isolation bladder, and is configured to acquire a first wave characteristic signal of the elastic wave; a second wave characteristic sensor, which is farther from the vibration source than the vibration isolation bladder, and is configured to acquire a second wave characteristic signal of the elastic wave after it has been processed by the vibration isolation bladder; and a controller, configured to receive the first wave characteristic signal and the second wave characteristic signal, and generate a second control signal based on the wave characteristic parameters of the first wave characteristic signal and / or the second wave characteristic signal.

[0014] According to an embodiment of the present invention, the vibration isolation capsule further includes: at least one porous columnar body, the porous columnar body being fixedly disposed inside the vibration isolation capsule, the photoresponsive solution passing through the porous columnar body under the action of elastic waves, the porous columnar body being configured to increase the energy dissipation of elastic waves based on viscosity.

[0015] According to an embodiment of the present invention, a light guiding unit is disposed on the upper surface of the vibration isolation capsule and extends into the interior of the vibration isolation capsule along the axial direction of the vibration isolation capsule. The light guiding unit can guide the light signal into the interior of the vibration isolation capsule and irradiate the photoresponsive solution inside the vibration isolation capsule. Based on the reversible isomerization of the photoresponsive polymer material under the action of the light signal, the damping of the photoresponsive solution can be adjusted. Thus, adaptive vibration isolation for elastic waves of different vibration frequencies can be achieved based on different damping characteristics, thereby improving the vibration isolation effect. Attached Figure Description

[0016] The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0017] Figure 1 A schematic diagram of a light-response-based bladder vibration isolation system according to an embodiment of the present invention is shown.

[0018] Figure 2 A schematic diagram of a light guide unit according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of a light-response-based bladder vibration isolation system according to another embodiment of the present invention is shown.

[0020] Figure 4 A schematic diagram of a light-response-based capsule vibration isolation system according to another embodiment of the present invention is shown. Detailed Implementation

[0021] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention. In the following detailed description, numerous specific details are set forth to provide a thorough understanding of the embodiments of the invention for ease of explanation. However, it will be apparent that one or more embodiments may be practiced without these specific details. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0023] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0024] When using expressions such as "at least one of A, B and C", they should generally be interpreted in accordance with the meaning that is commonly understood by those skilled in the art (e.g., "a system having at least one of A, B and C" should include, but is not limited to, a system having A alone, a system having B alone, a system having C alone, a system having A and B, a system having A and C, a system having B and C, and / or a system having A, B and C, etc.).

[0025] Figure 1A schematic diagram of a light-response-based capsule vibration isolation system according to an embodiment of the present invention is shown.

[0026] like Figure 1 As shown, the photoresponse-based capsule vibration isolation system includes a first vibration isolation capsule 100, which includes a light guiding unit 101 and a photoresponse solution 102. The light guiding unit 101 is disposed on the upper surface of the first vibration isolation capsule 100 and extends into the interior of the first vibration isolation capsule 100 along the axial direction of the first vibration isolation capsule 100. The light guiding unit 101 is configured to receive light signals via the upper surface of the vibration isolation capsule and guide the light signals into the interior of the first vibration isolation capsule 100. The photoresponse solution 102 includes a photoresponse polymer material, which is configured to isomerize under the action of the light signal to change the damping of the photoresponse solution, thereby isolating the elastic waves of the vibration source.

[0027] The light guide unit 101 is an optical element capable of transmitting light from a light source to a designated location, achieving specific path transmission of light based on the principle of total internal reflection. In embodiments of the present invention, the materials of the light guide unit 101 include, but are not limited to, polymethyl methacrylate, polycarbonate, polystyrene, cyclic olefin copolymers, and quartz glass. The upper surface of the first vibration isolation capsule 100 can be constructed based on the same light guide material as the light guide unit 101, used to receive external light and transmit optical signals to the light guide unit 101.

[0028] Photoresponsive polymers are a class of smart materials capable of sensing light signals and undergoing changes in their physical or chemical properties; that is, they can undergo reversible structural changes under light irradiation. Different molecular structures in photoresponsive polymers result in photoresponsive solutions exhibiting different properties, such as varying damping characteristics. Therefore, the molecular structure of photoresponsive polymers can be reversibly altered through light irradiation, thereby reversibly regulating the damping properties of the photoresponsive solution. Based on the different damping properties of the photoresponsive solution, vibration isolation of elastic waves from a vibration source can be achieved.

[0029] In embodiments of the present invention, the photoresponsive polymer materials include, but are not limited to, azobenzene, spiropyran, and diarylethylene. The solvents of the photoresponsive solution include, but are not limited to, silicone oil, chloroform, tetrahydrofuran, toluene, dichloromethane, dimethylformamide, and acetonitrile.

[0030] According to an embodiment of the present invention, a light guiding unit is disposed on the upper surface of the vibration isolation capsule and extends into the interior of the vibration isolation capsule along the axial direction of the vibration isolation capsule. The light guiding unit can guide the light signal into the interior of the vibration isolation capsule and irradiate the photoresponsive solution inside the vibration isolation capsule. Based on the reversible isomerization of the photoresponsive polymer material under the action of the light signal, the damping of the photoresponsive solution can be adjusted. Thus, adaptive vibration isolation for elastic waves of different vibration frequencies can be achieved based on different damping characteristics, thereby improving the vibration isolation effect.

[0031] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a light control device disposed on the top of the vibration isolation bladder to cover the upper surface of the vibration isolation bladder, configured to change the blocking area of ​​the light control device against external light under the control of a first control signal, so as to adjust the intensity of the light signal received by the light guide unit.

[0032] In embodiments of the present invention, the intensity of the light signal entering the vibration isolation capsule via the light guide unit significantly affects the photoresponse characteristics of the photoresponse solution, thereby affecting the vibration isolation effect of the capsule. Therefore, the intensity of the light signal entering the capsule can be controlled to adjust the vibration isolation effect. The illumination control device can be implemented based on mechanical physical blocking, optical filtering, or media with different transmittances. For example, light can be blocked by physical means such as light-blocking nets and louvers, or light of specific wavelengths can be filtered by a filter film or filter sheet. Liquids with different transmittances can also be injected into the illumination control device, and the amount of light entering the capsule can be controlled by changing the liquid concentration or altering the liquid turbidity through electrolysis.

[0033] According to an embodiment of the present invention, the inner sidewall of the vibration isolation bladder is coated with a photoresponsive polymer film, which is configured to change the elastic modulus and damping performance of the sidewall of the vibration isolation bladder based on isomerization under light irradiation.

[0034] After the sidewalls of the vibration isolation capsule are coated with a photoresponsive polymer film, the isomerization of the photoresponsive polymer under light irradiation will cause changes in the physical properties of the sidewalls. For example, when the photoresponsive polymer is azobenzene, the isomerization of azobenzene will cause volume shrinkage or expansion, leading to changes in the stress distribution of the sidewalls and thus a significant change in the elastic modulus, i.e., the sidewalls of the vibration isolation capsule become softer or harder. Simultaneously, the change in the elastic modulus of the sidewalls will also lead to changes in the damping performance of the sidewalls.

[0035] In embodiments of the present invention, different illuminations can cause the sidewalls of the vibration isolation capsule to have different elastic moduli. Sidewalls with different elastic moduli can produce different blocking effects on elastic waves from different vibration sources. For example, when the elastic modulus of the sidewalls of the vibration isolation capsule is low, the natural frequency of the capsule is also low, resulting in better vibration isolation for lower frequency elastic waves. When the elastic modulus of the sidewalls is high, the sidewalls exhibit higher stiffness. Higher stiffness causes impedance mismatch, leading to reflection of incident elastic waves and enhancing the vibration isolation effect of the capsule.

[0036] According to an embodiment of the present invention, the sidewall of the vibration isolation bladder is configured to extend and retract in the vertical direction, and the internal volume of the vibration isolation bladder is adjusted by extending and retracting the sidewall to change the light energy density inside the vibration isolation bladder.

[0037] Optical energy density refers to the light energy or number of photons per unit volume. In embodiments of the present invention, external light enters the closed vibration isolation capsule through its upper surface. With unchanged light input conditions, the total amount of light energy inside the capsule remains constant. Therefore, by changing the size of the capsule, the optical energy density inside can be altered. The optical energy density inside the capsule significantly affects the photoresponse characteristics of the photoresponse solution. For example, a higher optical energy density results in a faster photoresponse speed, allowing the photoresponse material to quickly undergo isomerization and improving the damping adjustment sensitivity of the capsule. Simultaneously, as light propagates through the photoresponse solution within the capsule, the light signal attenuates due to absorption. Therefore, for light with lower optical energy density, only the photoresponse solution near the light guide unit can generate a photoresponse based on illumination. Light with higher optical energy density can penetrate more of the photoresponse solution, resulting in more photoresponse solutions generating a photoresponse, thus ensuring a more uniform photoresponse characteristic inside the capsule.

[0038] In embodiments of the present invention, the volume of the vibration isolation cell can be adjusted by changing its height. For example, at least a portion of the sidewalls of the vibration isolation cell can be configured as a foldable corrugated structure. The sidewalls of the foldable corrugated structure can be stretched upward or compressed downward by an electric actuator to adjust the length of the sidewalls of the vibration isolation cell, thereby adjusting the volume of the vibration isolation cell.

[0039] According to an embodiment of the present invention, the surface of the light guiding unit is provided with a concave-convex structure to increase the contact area between the light guiding unit and the photoresponsive solution.

[0040] In embodiments of the present invention, the contact area between the light guide unit and the photoresponsive solution can be increased by providing a concave-convex structure on the surface of the light guide unit, thereby improving the efficiency and sensitivity of the photoresponse. The photoresponsive solution needs to absorb light energy for isomerization; therefore, a larger contact area means that more photoresponsive polymer material is located in the strong light field region of the photoresponsive solution, allowing for faster absorption of photon energy and accelerated energy transfer. Simultaneously, during the isomerization process of the photoresponsive polymer material under illumination, the photoresponsive solution undergoes volume changes, generating significant internal stress. When the surface of the light guide unit is planar, this causes stress concentration, resulting in the light guide unit bearing substantial localized stress. However, when the light guide unit has a concave-convex structure, the structure disperses the stress of the photoresponsive solution, improving the stability of the interface.

[0041] Figure 2 A schematic diagram of a light guide unit according to an embodiment of the present invention is shown.

[0042] like Figure 2 As shown, the light guide unit is a long strip structure with a serrated outer surface to increase the contact area between the light guide unit and the photoresponsive solution. Simultaneously, the tip of the light guide unit is rounded to reduce the probability of structural damage due to impacts.

[0043] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a light detection device disposed around the vibration isolation bladder and electrically connected to the vibration isolation bladder, the light detection device being configured to detect the light intensity of external light and generate a first control signal based on the light intensity.

[0044] In embodiments of the present invention, light intensity can be detected based on the photoelectric effect. When light shines on a semiconductor material, photons are absorbed, transferring energy to electrons, causing them to transition into free electrons. These photogenerated charge carriers move under the influence of a built-in electric field, thereby forming a current in the circuit, i.e., a photocurrent. The photocurrent is directly proportional to the light intensity; that is, the stronger the light, the larger the photocurrent. By measuring this photocurrent, or by converting the photocurrent into a voltage signal through a load resistor and then amplifying it through a voltage amplifier, the light intensity can be obtained. In embodiments of the present invention, the light detection device includes, but is not limited to, photodiodes, photoresistors, phototransistors, and illuminance meters.

[0045] In embodiments of the present invention, a first control signal can be generated based on the light intensity, and the light control device can be controlled by the first control signal to adjust the amount of light entering the vibration isolation chamber. For example, when a high light intensity is detected, the light detection device outputs a first control signal corresponding to a high shading state, adjusting the light control device to enter a high shading state to effectively reduce the amount of light entering the vibration isolation chamber. When a low light intensity is detected, the light detection device outputs a first control signal corresponding to a low shading state, adjusting the light control device to enter a low shading state to effectively increase the amount of light entering the vibration isolation chamber.

[0046] In embodiments of the present invention, the vibration isolation system may further include a solar energy storage device for collecting solar energy. The solar energy storage device may be connected to a light control device, and when the light energy from the outside is insufficient, the solar energy stored in the solar energy storage device may be activated, and the light may be output to the interior of the vibration isolation capsule through the light control device.

[0047] According to an embodiment of the present invention, the capsule isolation system further includes: a solution detection device disposed on the lower surface inside the isolation capsule and immersed in a photoresponsive solution, the solution detection device being configured to detect the degree of isomerization of the photoresponsive polymer material in the photoresponsive solution under target illumination conditions, so as to replace the photoresponsive solution based on the degree of isomerization.

[0048] Photoresponsive polymers undergo isomerization under light irradiation, a process that can potentially fail. For example, during repeated isomerization cycles in photoresponsive polymers, active groups may absorb excessive energy, leading to ring-opening, cross-linking, oxidation, or the formation of unswitchable isomers. Therefore, in embodiments of this invention, the degree of isomerization of the photoresponsive polymer can be detected. When isomerization failure is detected, the photoresponsive solution is replaced. In embodiments of this invention, the solution detection device can use spectral analysis to measure changes in the characteristic absorption peaks of the photoresponsive solution at specific wavelengths, thereby determining whether isomerization failure has occurred. For example, in a photoresponsive solution using azobenzene as the photoresponsive polymer, azobenzene molecules exist in the trans configuration under natural light or in darkness. Under ultraviolet light irradiation, the configuration of azobenzene molecules changes from trans to cis, and trans-azobenzene and cis-azobenzene exhibit two different characteristic peaks. If the absorbance variation of the characteristic peak decreases significantly with the increase of the number of light irradiation cycles, it indicates that the isomerization degree of the photoresponsive polymer material has undergone fatigue failure. By setting a failure judgment threshold for the absorbance variation, the photoresponsive solution can be replaced based on the degree of isomerization to ensure the accuracy of the photoresponsive characteristics of the capsule isolation system.

[0049] Through the embodiments of the present invention, the effectiveness of the photoresponsive solution can be tested to ensure the stability of the vibration isolation system based on the photoresponsive characteristics, thereby achieving a more stable vibration isolation effect.

[0050] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a gas pressure control device connected to the upper surface of the vibration isolation bladder via a conduit, the gas pressure control device being configured to change the gas pressure inside the vibration isolation bladder under the control of a second control signal, thereby changing the gas-liquid mixing ratio of the gas and the photoresponsive solution inside the vibration isolation bladder; wherein the gas and the photoresponsive solution form a two-phase system, and the two-phase system is configured to change the stiffness and damping characteristics of the two-phase system based on the gas-liquid mixing ratio.

[0051] In embodiments of the present invention, the gas pressure control device may be a gas compressor. The gas compressor changes the gas content inside the vibration isolation bladder by blowing gas into or drawing gas out of the duct, and controls the gas pressure inside the vibration isolation bladder based on the change in gas content.

[0052] In embodiments of the present invention, the capsule isolation system further includes a liquid storage device. The liquid storage device stores the same photoresponsive solution as the one inside the isolation capsule and is connected to the lower surface of the isolation capsule via a liquid conduit. When a gas compressor blows in gas, the gas content inside the isolation capsule increases, the liquid content decreases, and excess photoresponsive solution can be stored in the liquid storage device. When the gas compressor draws in gas, the gas content inside the isolation capsule decreases, and the liquid storage device introduces photoresponsive solution to increase the liquid content inside the isolation capsule. Control valves can be installed on the gas pressure control device and the conduit connecting the isolation capsule, as well as on the liquid conduit connecting the liquid storage device and the isolation capsule, to control the delivery of gas and photoresponsive solution.

[0053] Due to the compressibility of gases, as the gas content in a two-phase system increases, the stiffness and damping of the system relatively decrease, making it more prone to deformation. This allows for vibration isolation of lower-frequency elastic waves, but weakens its shock control capabilities. Conversely, due to the incompressibility of liquids, as the liquid content in a two-phase system increases, the stiffness and damping relatively increase. The isolation chamber is less prone to deformation, has a stronger load-bearing capacity, and provides better vibration isolation for higher-frequency elastic waves. By precisely adjusting the gas-liquid ratio, the stiffness and damping characteristics of the isolation chamber can be controlled, allowing it to be matched to specific vibration environments.

[0054] In embodiments of the present invention, the gas content inside the vibration isolation capsule is adjusted by a pneumatic pressure control device, thereby forming a gas cavity inside the capsule. When the vibration isolation capsule is embedded in the soil for elastic wave isolation, the elastic wave passes through both the soil and the gas. The soil has a high wave impedance, while the gas has a low wave impedance. The greater the difference in wave impedance between the two media, the more energy the elastic wave reflects back to the first medium as it passes through the interface into the second medium, and the less energy it carries into the second medium. Therefore, when a gas cavity is formed inside the vibration isolation capsule, the capsule can significantly reflect the elastic wave that enters through the soil, thus achieving a vibration isolation effect based on a reflection mechanism.

[0055] Through the embodiments of the present invention, the gas pressure inside the vibration isolation bladder can be changed, and the stiffness and damping characteristics of the vibration isolation bladder can be adjusted by controlling the gas-liquid mixing ratio of the vibration isolation system, thereby achieving a more precise vibration isolation effect.

[0056] Figure 3 A schematic diagram of a light-response-based capsule vibration isolation system according to another embodiment of the present invention is shown.

[0057] like Figure 3 As shown, the light-response-based bladder vibration isolation system includes a pressure control device 310, a liquid storage device 320, a second vibration isolation bladder 330, a light control device 340, a light detection device 350, and a solution detection device 360.

[0058] The gas pressure control device 310 controls the gas content inside the second vibration isolation capsule 330, and the liquid storage device 320 controls the content of the photoresponsive solution inside the second vibration isolation capsule 330. The gas-liquid ratio inside the second vibration isolation capsule 330 can be adjusted based on the coordinated control of the gas pressure control device 310 and the liquid storage device 320, thereby adjusting the vibration isolation characteristics of the second vibration isolation capsule 330. The illumination control device 340 controls the amount of light received by the second vibration isolation capsule 330 to control the photoresponsive characteristics of the photoresponsive solution in the second vibration isolation capsule 330. The illumination detection device 350 detects the intensity of external light and controls the illumination control device 340 based on the intensity of external light. The solution detection device 360 ​​detects the degree of isomerization of the photoresponsive polymer material in the photoresponsive solution inside the second vibration isolation capsule 330 under target illumination conditions, and replaces the photoresponsive solution in the second vibration isolation capsule 330 based on the degree of isomerization.

[0059] According to an embodiment of the present invention, the bladder vibration isolation system further includes: a first wave characteristic sensor, which is closer to the vibration source than the vibration isolation bladder, and is configured to acquire a first wave characteristic signal of the elastic wave; a second wave characteristic sensor, which is farther from the vibration source than the vibration isolation bladder, and is configured to acquire a second wave characteristic signal of the elastic wave after it has been processed by the vibration isolation bladder; and a controller, configured to receive the first wave characteristic signal and the second wave characteristic signal, and generate a second control signal based on the wave characteristic parameters of the first wave characteristic signal and / or the second wave characteristic signal.

[0060] The controller can adjust the vibration isolation system based on a first wave characteristic signal. For example, the first wave characteristic sensor can collect the frequency of the elastic wave from the vibration source. When the frequency of the elastic wave is high, the controller generates a second control signal to control the air pressure control device to reduce the gas inside the isolation bladder. Because the gas content inside the isolation bladder decreases and the liquid content increases, the stiffness of the isolation bladder is improved, thus effectively isolating higher-frequency elastic waves. When the frequency of the elastic wave is low, the controller generates a second control signal to control the air pressure control device to increase the gas inside the isolation bladder. Because the gas content inside the isolation bladder increases and the liquid content decreases, the natural frequency of the isolation bladder is reduced, thus effectively isolating lower-frequency elastic waves.

[0061] The controller can also perform output feedback adjustment of the bladder isolation system based on the second wave characteristic signal. For example, the second wave characteristic sensor can collect the frequency band energy information of the elastic wave and adjust the gas and liquid content inside the isolation bladder based on this information. By adjusting the damping characteristics of the isolation bladder based on different gas-liquid mixing ratios, more frequency band energy can be dissipated. The controller can also adjust relevant parameters of the bladder isolation system based on a comprehensive analysis of the first and second wave characteristic signals.

[0062] In an embodiment of the present invention, the vibration isolation bladder can be buried inside the soil for vibration isolation.

[0063] Figure 4 A schematic diagram of a light-response-based capsule vibration isolation system according to another embodiment of the present invention is shown.

[0064] like Figure 4As shown, the vibration isolation system includes a first wave characteristic sensor 401, a third vibration isolation capsule 402, and a second wave characteristic sensor 403. The third vibration isolation capsule 402 is buried in the soil below the ground surface. The elastic wave from the vibration source first passes through the first wave characteristic sensor 401, then through the third vibration isolation capsule 402 for vibration isolation treatment, and finally passes through the second wave characteristic sensor 403 after vibration isolation treatment.

[0065] According to an embodiment of the present invention, the vibration isolation capsule further includes: at least one porous columnar body, the porous columnar body being fixedly disposed inside the vibration isolation capsule, the photoresponsive solution passing through the porous columnar body under the action of elastic waves, the porous columnar body being configured to increase the energy dissipation of elastic waves based on viscosity.

[0066] In embodiments of the present invention, the vibration of the elastic wave drives the movement of the photoresponsive solution. This movement dissipates the energy of the elastic wave. Simultaneously, the movement of the photoresponsive solution permeates the porous columnar structure. As the fluid flows through the narrow pores, it experiences strong viscous friction with the pore walls. The greater the viscous friction, the more kinetic energy of the fluid is converted into internal energy and dissipated, thus achieving the conversion of the kinetic energy of the elastic wave into the internal energy of the photoresponsive solution. Therefore, the porous columnar structure can be structurally designed to increase the viscous friction between the photoresponsive solution and the porous columnar structure, thereby increasing the energy dissipation of the elastic wave.

[0067] Those skilled in the art will understand that the features described in the various embodiments of the present invention can be combined and / or combined in various ways, even if such combinations or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments of the present invention can be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All such combinations and / or combinations fall within the scope of the present invention.

[0068] The embodiments of the present invention have been described above. However, these embodiments are merely illustrative and not intended to limit the scope of the invention. Although various embodiments have been described above, this does not mean that the measures in the various embodiments cannot be used advantageously in combination. Various substitutions and modifications can be made by those skilled in the art without departing from the scope of the invention, and all such substitutions and modifications should fall within the scope of the invention.

Claims

1. A photoresponse-based capsule vibration isolation system, characterized in that, include: Vibration isolation capsule, comprising a light guiding unit and a photoresponse solution; The light guiding unit is disposed on the upper surface of the vibration isolation bag and extends into the interior of the vibration isolation bag along the axial direction of the vibration isolation bag. The light guiding unit is configured to receive light signals via the upper surface of the vibration isolation bag and guide the light signals into the interior of the vibration isolation bag. The photoresponsive solution includes a photoresponsive polymer material, which is configured to isomerize under the action of the light signal to change the damping of the photoresponsive solution and to isolate the elastic waves of the vibration source.

2. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The light-response-based capsule vibration isolation system also includes: A light control device is disposed on the top of the vibration isolation bladder to cover the upper surface of the vibration isolation bladder. It is configured to change the area of ​​the light control device blocking external light under the control of a first control signal, so as to adjust the intensity of the light signal received by the light guide unit.

3. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The sidewall of the vibration isolation cell is coated with a photoresponsive polymer film, which is configured to change the elastic modulus and damping performance of the sidewall of the vibration isolation cell based on isomerization under light irradiation.

4. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The sidewalls of the vibration isolation capsule are configured to extend and retract in the vertical direction, and the internal volume of the vibration isolation capsule is adjusted by extending and retracting the sidewalls to change the light energy density inside the vibration isolation capsule.

5. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The surface of the light guide unit has a concave-convex structure to increase the contact area between the light guide unit and the photoresponsive solution.

6. The photoresponse-based capsule vibration isolation system according to claim 2, characterized in that, The light-response-based capsule vibration isolation system also includes: An illumination detection device is disposed around the vibration isolation bladder and electrically connected to the vibration isolation bladder. The illumination detection device is configured to detect the illumination intensity of external light and generate the first control signal based on the illumination intensity.

7. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The light-response-based capsule vibration isolation system also includes: A solution detection device is disposed on the lower surface inside the vibration isolation bladder and immersed in the photoresponsive solution. The solution detection device is configured to detect the degree of isomerization of the photoresponsive polymer material in the photoresponsive solution under target illumination conditions, so as to replace the photoresponsive solution based on the degree of isomerization.

8. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The light-response-based capsule vibration isolation system also includes: A pressure control device is connected to the upper surface of the vibration isolation bladder via a conduit. The pressure control device is configured to change the gas pressure inside the vibration isolation bladder under the control of a second control signal, thereby changing the gas-liquid mixing ratio of the gas inside the vibration isolation bladder and the photoresponsive solution. The gas and the photoresponsive solution form a two-phase system, and the two-phase system is configured to change the stiffness and damping characteristics of the two-phase system based on the gas-liquid mixing ratio.

9. The photoresponse-based capsule vibration isolation system according to claim 8, characterized in that, The light-response-based capsule vibration isolation system also includes: A first wave characteristic sensor is located closer to the vibration source than the vibration isolation bladder, and the first wave characteristic sensor is configured to collect the first wave characteristic signal of the elastic wave. The second wave characteristic sensor is located further away from the vibration source than the vibration isolation capsule. The second wave characteristic sensor is configured to collect the second wave characteristic signal of the elastic wave after it has been processed by the vibration isolation capsule. The controller is configured to receive the first fluctuation characteristic signal and the second fluctuation characteristic signal, and generate the second control signal based on the fluctuation characteristic parameters of the first fluctuation characteristic signal and / or the second fluctuation characteristic signal.

10. The photoresponse-based capsule vibration isolation system according to claim 1, characterized in that, The vibration isolation bag also includes: At least one porous columnar body is fixedly disposed inside the vibration isolation capsule. The photoresponsive solution passes through the porous columnar body under the action of the elastic wave. The porous columnar body is configured to increase the energy dissipation of the elastic wave based on viscosity.

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