CN113125140A - Elastomer coupling dynamic characteristic experimental device and system - Google Patents
Elastomer coupling dynamic characteristic experimental device and system Download PDFInfo
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- CN113125140A CN113125140A CN202110452821.9A CN202110452821A CN113125140A CN 113125140 A CN113125140 A CN 113125140A CN 202110452821 A CN202110452821 A CN 202110452821A CN 113125140 A CN113125140 A CN 113125140A
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- G01M13/00—Testing of machine parts
Abstract
The application relates to the field of experimental devices, in particular to an elastomer coupling dynamic characteristic experimental device and an elastomer coupling dynamic characteristic experimental system. The elastomer coupling dynamic characteristic experiment device comprises a sensor assembly, a driving mechanism and a shearing spring assembly; the sensor assembly is connected with one end of the elastic body, and the driving mechanism is connected with the other end of the elastic body and drives the elastic body to do relaxation motion; the sensor assembly is connected with one side of the shear spring assembly, and the driving mechanism is connected with the other side of the shear spring assembly so as to apply shear force to the shear spring assembly; the sensor assembly is used for measuring the coupling force of the elastic body and the shearing spring assembly. The elastomer coupling dynamic characteristic experimental device provided by the application perfects the rigidity term and the damping term of the existing flip-flow screen dual-mass mechanical model, so that the kinematic rules of the main and floating screen frames of the flip-flow screen can be accurately solved.
Description
Technical Field
The application relates to the field of experimental devices, in particular to an elastomer coupling dynamic characteristic experimental device and an elastomer coupling dynamic characteristic experimental system.
Background
At present, the study aiming at the dynamic characteristics of the flip-flow screen mainly takes a double-plastid linear theory as a main part, only the linear stiffness force and the damping force of a shearing spring are considered, a certain theoretical basis is provided for the design and the industrial application of the flip-flow screen, but the theory ignores the interaction force between an elastic screen surface and a material, and actually the coupling force among the shearing spring, the elastic screen surface and the material really influences the dynamic characteristics of the main part and the floating screen frame of the flip-flow screen, so that the study on the coupling force among the shearing spring, the elastic screen surface and the material is very necessary.
The existing experimental device can only measure the dynamic characteristics of the elastic screen surface under the condition of no load or heavy load, and cannot measure the coupling acting force of the elastic screen surface and the shearing spring.
Disclosure of Invention
The application aims to provide an elastomer coupling dynamic characteristic experiment device and an experiment system, which are used for measuring the coupling acting force of an elastic screen surface and a shear spring.
The application provides an elastomer coupling dynamic characteristic experimental device which comprises a sensor assembly, a driving mechanism and a shearing spring assembly;
the sensor assembly is connected with one end of the elastic body, and the driving mechanism is connected with the other end of the elastic body and drives the elastic body to do relaxation motion;
the sensor assembly is connected with one side of the shear spring assembly, and the driving mechanism is connected with the other side of the shear spring assembly so as to apply shear force to the shear spring assembly;
the sensor assembly is used for measuring the coupling force of the elastic body and the shearing spring assembly.
In the above technical solution, further, the device further comprises a guide assembly;
the guide assembly comprises a guide shaft, a first support plate and a second support plate which are arranged at intervals; the elastic body is arranged between the first support plate and the second support plate, the guide shaft is positioned at the side part of the elastic body, the guide shaft penetrates through the first support plate and the second support plate, and the first support plate and the second support plate can move along the axial direction relative to the guide shaft;
one side of the first supporting plate, which is far away from the elastic body, is connected with the driving mechanism, and one side of the second supporting plate, which is far away from the elastic body, is connected with the sensor assembly.
In the above technical solution, further, linear bearings are further respectively disposed between the guide shaft and the first support plate and between the guide shaft and the second support plate.
In the above technical solution, further, the sensor assembly includes a mount and a first force sensor;
the mounting seat is located one side that the second backup pad is kept away from first backup pad, first force sensor install in the mounting seat, the second backup pad, the shear spring subassembly all with the measuring end of first force sensor is connected.
In the above technical solution, further, the sensor assembly further includes a mounting plate, a second force sensor, and a third force sensor;
the mounting plate is positioned between the mounting seat and the second support plate, and the guide shaft can penetrate through the mounting plate; the measuring end of the first force sensor is connected with the mounting plate, and the second force sensor and the third force sensor are mounted on the mounting plate;
the measuring end of the second force sensor is connected with the second supporting plate; the shearing spring assembly is installed between the mounting plate and the second supporting plate, and the measuring end of the third force sensor is connected with the shearing spring assembly.
In the above technical solution, further, the guide assembly further includes a shaft seat, and the shaft seat is used for fixing the guide shaft.
In the above technical solution, further, the shear spring assembly includes a spring main body and two connecting members;
the connecting piece comprises a first connecting part and a second connecting part which are vertically arranged; the inner sides of the first connecting parts of the two connecting pieces are opposite, the inner sides of the second connecting parts of the two connecting pieces are opposite, and the spring main body is arranged between the first connecting parts of the two connecting pieces;
the second connecting part of one of the connecting pieces is connected with the driving mechanism, and the second connecting part of the other connecting piece is connected with the sensor assembly.
In the above technical solution, further, the protection cover is mounted on the upper surface of the elastic body;
the protective cover comprises a straight cylinder part and a contraction cylinder part which are arranged from top to bottom, the straight cylinder part is connected with the large-opening end of the contraction cylinder part, and the small-opening end of the contraction cylinder part is connected with the elastic body;
the straight cylinder part is formed by enclosing a transparent baffle, and the shrinkage cylinder part is formed by enclosing a soft material.
In the above technical solution, further, the device further comprises a base;
the sensor assembly, the driving mechanism and the shear spring assembly are all mounted on the base;
the protection casing still includes the support, the bottom of support with the base is connected, straight section of thick bamboo portion with the top of support is connected.
The application also provides an experimental system which comprises the elastomer coupling dynamic characteristic experimental device.
Compared with the prior art, the beneficial effect of this application is:
the elastomer coupling dynamic characteristic experimental device provided by the application comprises a sensor assembly, a driving mechanism and a shearing spring assembly.
The sensor assembly is connected with one end of the elastic body, and the driving mechanism is connected with the other end of the elastic body and drives the elastic body to do relaxation motion; specifically, the elastomer is elastic sieve plate, and when actuating mechanism pulled one end of elastic sieve plate, the sensor module of being connected with the other end of elastic sieve plate can measure the atress condition of elastic sieve plate.
Meanwhile, the sensor assembly is further connected with one side of the shearing spring assembly, the driving mechanism is connected with the other side of the shearing spring assembly to apply shearing force to the shearing spring assembly, and the sensor assembly can also measure the stress condition of the shearing spring assembly.
That is, the sensor assembly is capable of measuring the coupling force of the elastomer and the shear spring assembly. The experimental device can measure the coupling dynamic characteristics of the shearing spring and the elastic screen surface of the elastic screen plate under the conditions of no load and heavy load, and further split the characteristics into the rigidity force and the damping force related to the speed and the displacement, so that the rigidity coefficient and the damping coefficient of the flip-flow screen during working are obtained, the rigidity term and the damping term of the dual-body mechanical model of the conventional flip-flow screen are perfected, and the kinematic rules of the main frame and the floating frame of the flip-flow screen can be accurately solved.
Drawings
In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a first structure of an elastomer coupling dynamic property experimental apparatus provided in the present application;
FIG. 2 is a schematic diagram of a second structure of an elastomer coupling dynamic property experimental apparatus provided in the present application;
FIG. 3 is a schematic diagram of a third structure of an elastomer coupling dynamic property experimental apparatus provided in the present application;
FIG. 4 is a fourth schematic structural diagram of an elastomer coupling dynamics experiment apparatus provided in the present application;
fig. 5 is a fifth structural schematic diagram of an elastomer coupling dynamic property experimental apparatus provided in the present application.
In the figure: 101-a sensor assembly; 102-a drive mechanism; 103-a shear spring assembly; 104-elastic sieve plate; 105-a guide assembly; 106-a guide shaft; 107-a first support plate; 108-a second support plate; 109-linear bearings; 110-a mount; 111-a first force sensor; 112-a mounting plate; 113-a second force sensor; 114-a third force sensor; 115-a connecting rod; 116-shaft seat; 117-a spring body; 118-a connector; 119-a servo motor; 120-a turntable; 121-a first link; 122-a second link; 123-protective cover; 124-straight barrel part; 125-a shrink tube section; 126-a base; 127-a bottom plate; 128-a vertical plate; 129-a scaffold; 130-a first pulley; 131-a transmission rod; 132-a second drive pulley; 133-an acceleration sensor; 134-connecting plate.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Example one
Referring to fig. 1 to 5, the elastomer coupling dynamic property experiment apparatus provided by the present application includes a sensor assembly 101, a driving mechanism 102, and a shear spring assembly 103.
The sensor assembly 101 is connected with one end of the elastic body, and the driving mechanism 102 is connected with the other end of the elastic body and drives the elastic body to do relaxation motion; specifically, the elastic body shown in the figure is an elastic screen plate 104, and when the driving mechanism 102 pulls one end of the elastic screen plate 104, the sensor assembly 101 connected with the other end of the elastic screen plate 104 can measure the stress condition of the elastic screen plate 104.
Meanwhile, the sensor assembly 101 is further connected with one side of the shear spring assembly 103, the driving mechanism 102 is connected with the other side of the shear spring assembly 103 to apply a shear force to the shear spring assembly 103, and the sensor assembly 101 can also measure the stress condition of the shear spring assembly 103. Preferably, the elastomer and shear spring assembly 103 is removably mounted between the sensor assembly 101 and the drive mechanism 102, with the shear spring assembly 103 located on the side of the elastomer.
That is, the sensor assembly 101 is capable of measuring the coupling force of the elastomer and the shear spring assembly 103. The experimental device can measure the coupling dynamic characteristics of the shear spring and the elastic screen surface of the elastic screen plate 104 under no-load and heavy-load conditions, and further split the coupling dynamic characteristics into the stiffness force and the damping force related to the speed and the displacement, so that the stiffness coefficient and the damping coefficient of the tension-relaxation screen during working are obtained, the stiffness term and the damping term of the existing tension-relaxation screen dual-body mechanical model are perfected, and the kinematic rules of the main frame and the floating frame of the tension-relaxation screen can be accurately solved.
When the flexible screen deck 104 is actually in operation, the relative movement of the two ends of the flexible screen deck 104 is generally linear. In order to simulate the real movement of the elastic screen plate 104 to test the stress condition of the elastic screen plate 104, in an alternative of this embodiment, the elastomer coupling dynamics experiment apparatus is further provided with a guiding assembly 105 to guide the movement of the elastic screen plate 104.
Specifically, the guide assembly 105 includes at least one guide shaft 106 (two guide shafts 106 are shown in the figure to provide better guidance), a first support plate 107 and a second support plate 108 spaced apart from each other. The elastic screen plate 104 is arranged between a first supporting plate 107 and a second supporting plate 108, and the first supporting plate 107 and the second supporting plate 108 are used for fixedly supporting the elastic screen plate 104; when the material is carried on the elastic screen plate 104, the guide shafts 106 on the side of the elastic body do not influence the screening process of the material by the elastic screen plate 104. The side of the first support plate 107 remote from the elastomer is connected to the drive mechanism 102 and the side of the second support plate 108 remote from the elastomer is connected to the sensor assembly 101. When the driving mechanism 102 is activated, the first support plate 107 and the second support plate 108 start to move, and the guide shaft 106 penetrates through the first support plate 107 and the second support plate 108, so that the first support plate 107 and the second support plate 108 can move linearly in the axial direction relative to the guide shaft 106.
Of course, the first support plate 107 connected to the driving mechanism 102 has a large movement amplitude, and the second support plate 108 connected to the sensor assembly 101 has a relatively small movement amplitude.
In an alternative scheme of this embodiment, linear bearings 109 are further disposed between the guide shaft 106 and the first support plate 107 and between the guide shaft 106 and the second support plate 108, respectively, to reduce friction between the guide shaft 106 and the first support plate 107 and the second support plate 108, so that the movement of the first support plate 107 and the second support plate 108 is smoother.
In an alternative to this embodiment, the sensor assembly 101 includes a mount 110 and a first force sensor 111. The mounting seat 110 is located on the side of the second support plate 108 away from the first support plate 107, the first force sensor 111 is mounted on the mounting seat 110, the second support plate 108 and the shear spring assembly 103 are both connected with the measuring end of the first force sensor 111, and the first force sensor 111 is used for measuring the coupling force of the elastic screen deck 104 and the shear spring assembly 103.
Further, the sensor assembly 101 also includes a mounting plate 112, a second force sensor 113, and a third force sensor 114. A mounting plate 112 is located between the mounting base 110 and the second support plate 108, and the guide shaft 106 can extend through the mounting plate 112 with a linear bearing 109 also being provided therebetween to guide the mounting plate 112. The coupling force of the resilient screen deck 104 and the shear spring assembly 103 acts on the mounting plate 112 and the measuring end of the first force sensor 111 is connected to the mounting plate 112 to measure the coupling force.
The second force sensor 113 and the third force sensor 114 are both mounted on the mounting plate 112, specifically, the second force sensor 113 and the third force sensor 114 are both mounted on one side of the mounting plate 112 away from the second support plate 108, and a measuring end of the second force sensor 113 is connected with the second support plate 108 through a connecting rod 115 for separately measuring the stress condition of the elastic screen plate 104; the shear spring assembly 103 is installed between the mounting plate 112 and the second support plate 108, and the measuring end of the third force sensor 114 is connected with the shear spring assembly 103 through the connecting rod 115 to measure the stress condition of the shear spring assembly 103 alone. The mounting plate 112 is provided with a plurality of mounting holes for the connection rod 115 to pass through, and the first force sensor 111 and the second force sensor 113 mounted on the outer side are convenient for connecting with other computing equipment.
In an alternative embodiment of this embodiment, the guiding assembly 105 further comprises a shaft seat 116, and the shaft seat 116 is used for fixing the guiding shaft 106. As shown in fig. 1, shaft seats 116 are provided at both ends of the guide shaft 106 to stably support the guide shaft 106.
In an alternative embodiment, the number of the shear spring assemblies 103 is at least one, and the shear spring assemblies 103 include a spring body 117 and two connecting members 118. The connecting member 118 includes a first connecting portion and a second connecting portion which are vertically arranged, that is, the connecting member 118 is L-shaped. As shown in fig. 2, the insides of the first connecting portions (long sides) of the two links 118 face each other, the insides of the second connecting portions (short sides) of the two links 118 face each other, and the spring body 117 is mounted between the first connecting portions of the two links 118. The second connecting portion of one of the connecting members 118 is connected to the driving mechanism 102, and the second connecting portion of the other connecting member 118 is connected to the sensor unit 101. The driving mechanism 102 pulls the second connecting portion of one of the connecting members 118 to approach or move away from the second connecting portion of the other connecting member 118, i.e. applies a shearing force to the spring body 117, and the sensor assembly 101 is used for measuring the stress condition of the spring body 117.
In an alternative to this embodiment, the drive mechanism 102 includes a servo motor 119, a turntable 120, and a linkage assembly. The drive end of the servo motor 119 is coupled to the center of the turntable 120 to rotate the turntable 120. The connecting rod assembly comprises a first connecting rod 121 and a second connecting rod 122 which are hinged, one end of the first connecting rod 121 is connected with the first supporting plate 107, the other end of the first connecting rod 121 is connected with one end of the second connecting rod 122 through a joint bearing, and the other end of the second connecting rod 122 is installed at the circumference of the turntable 120 through a joint bearing. When the servo motor 119 drives the turntable 120 to rotate, the first connecting rod 121 and the second connecting rod 122 are driven to reciprocate, so as to drive the elastic sieve plate 104 to perform a relaxation motion.
In an optional scheme of this embodiment, the present application further provides another implementation scheme of the driving mechanism 102, as shown in fig. 5, the driving mechanism 102 includes a servo motor 119, a first driving pulley 130, a driving rod 131, and a second driving pulley 132, the servo motor 119 drives the driving rod 131 to rotate through the first driving pulley 130, the middle portion of the driving rod 131 is connected to the first driving pulley 130, the two ends of the driving rod 131 are provided with the second driving pulley 132, a rotating wheel of the second driving pulley 132 is supported and positioned by a bearing, a belt of the second driving pulley 132 is connected to connecting plates 134 arranged at the two ends of the first supporting plate 107, and when the servo motor 119 is started, the first supporting plate 107 can be driven to reciprocate through the above structure, so as to drive the elastic screen plate 104 to make a relaxation motion.
Preferably, an acceleration sensor 133 is disposed in the middle of the first support plate 107 for measuring the acceleration time history of the moving ends of the elastic body and the shear spring, and the velocity and displacement of the elastic body and the shear spring can be obtained by multiple integration.
Example two
The elastomer coupling dynamic characteristic experiment device in the second embodiment is an improvement on the above embodiment, technical contents disclosed in the above embodiment are not described repeatedly, and the contents disclosed in the above embodiment also belong to the contents disclosed in the second embodiment.
Because the relaxation motion of the elastic sieve plate 104 has larger vibration intensity, materials larger than sieve holes can be quickly separated from the sieve surface in the experimental process and fall from the periphery of the elastic sieve plate 104, and the action difference between the materials and the elastic sieve surface is larger when the materials and the thick material layer are sieved in the actual work of the relaxation sieve, so that the dynamic characteristic of the interaction between the materials and the elastic sieve surface is not representative. In order to overcome the above-mentioned defects, in an alternative solution of this embodiment, the elastomer coupling dynamics experiment apparatus further includes a protective cover 123 installed on the upper surface of the elastomer, so as to define the boundary condition between the material and the elastic sieve plate 104, limit the movement space of the material, and make the interaction between the material and the elastic sieve surface closer to the actual working condition.
Specifically, the shield 123 includes a straight cylinder portion 124 and a contracted cylinder portion 125 arranged from top to bottom, the straight cylinder portion 124 is connected with a large opening end of the contracted cylinder portion 125, and a small opening end of the contracted cylinder portion 125 is connected with the elastic body; the straight tube portion 124 is surrounded by a transparent barrier, and the contracted tube portion 125 is surrounded by a soft material.
In this embodiment, referring to fig. 4, the straight tube part 124 may be formed by surrounding four transparent baffles, the transparent material is convenient for observing the material, the soft baffles are connected to the bottom end of the straight tube part 124, and the soft baffles are surrounded into the shape of an inverted rectangular pyramid, so as to form the rigid-flexible coupling pocket-shaped protective cover 123. Rigid-flexible coupling pocket-shaped protective cover 123 really realizes the coupling effect and the phase relation between the materials and the elastic screen surface during the operation of the flip-flow screen, the transparent baffle and the elastic screen surface are in flexible connection, the materials on the screen can not fall around the elastic screen surface, and the movement of the elastic screen surface can not be influenced by the flexible connection.
In an optional aspect of this embodiment, the elastomer coupling dynamic property experiment apparatus further includes a base 126; base 126 includes a bottom plate 127 and a riser 128, sensor assembly 101, drive mechanism 102, and shear spring assembly 103 are mounted to an upper surface of bottom plate 127, and riser 128 is mounted to a lower surface of bottom plate 127 for supporting bottom plate 127.
The shroud 123 also includes a bracket 129 to mount the shroud directly over the resilient screening surface. The bottom of the bracket 129 is connected with the upper surface of the bottom plate 127, and the straight cylinder part 124 is connected with the top of the bracket 129, so that the supporting effect of the whole cover body is realized.
EXAMPLE III
An experimental system is provided in the third embodiment of the present application, including the elastomer coupling dynamic characteristic experimental apparatus in any one of the above embodiments, so that all the beneficial technical effects of the elastomer coupling dynamic characteristic experimental apparatus in any one of the above embodiments are achieved, and details are not repeated herein.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application. Moreover, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the application and form different embodiments.
Claims (10)
1. The experimental device for the coupling dynamic characteristics of the elastomer is characterized by comprising a sensor assembly, a driving mechanism and a shearing spring assembly;
the sensor assembly is connected with one end of the elastic body, and the driving mechanism is connected with the other end of the elastic body and drives the elastic body to do relaxation motion;
the sensor assembly is connected with one side of the shear spring assembly, and the driving mechanism is connected with the other side of the shear spring assembly so as to apply shear force to the shear spring assembly;
the sensor assembly is used for measuring the coupling force of the elastic body and the shearing spring assembly.
2. The elastomer coupling dynamics experimental apparatus of claim 1, further comprising a guide assembly;
the guide assembly comprises a guide shaft, a first support plate and a second support plate which are arranged at intervals; the elastic body is arranged between the first support plate and the second support plate, the guide shaft is positioned at the side part of the elastic body, the guide shaft penetrates through the first support plate and the second support plate, and the first support plate and the second support plate can move along the axial direction relative to the guide shaft;
one side of the first supporting plate, which is far away from the elastic body, is connected with the driving mechanism, and one side of the second supporting plate, which is far away from the elastic body, is connected with the sensor assembly.
3. The elastomer coupling dynamic property experiment device of claim 2, wherein linear bearings are further respectively arranged between the guide shaft and the first support plate and between the guide shaft and the second support plate.
4. The elastomer coupling dynamics experiment device of claim 2, wherein the sensor assembly includes a mount and a first force sensor;
the mounting seat is located one side that the second backup pad is kept away from first backup pad, first force sensor install in the mounting seat, the second backup pad, the shear spring subassembly all with the measuring end of first force sensor is connected.
5. The elastomer coupling dynamics experiment device of claim 4, wherein the sensor assembly further comprises a mounting plate, a second force sensor, and a third force sensor;
the mounting plate is positioned between the mounting seat and the second support plate, and the guide shaft can penetrate through the mounting plate; the measuring end of the first force sensor is connected with the mounting plate, and the second force sensor and the third force sensor are mounted on the mounting plate;
the measuring end of the second force sensor is connected with the second supporting plate; the shearing spring assembly is installed between the mounting plate and the second supporting plate, and the measuring end of the third force sensor is connected with the shearing spring assembly.
6. The elastomer coupling dynamics experiment device of claim 2, wherein the guide assembly further comprises an axle seat for fixing the guide axle.
7. The elastomer coupling dynamics experimental device of claim 1, wherein the shear spring assembly includes a spring body and two connectors;
the connecting piece comprises a first connecting part and a second connecting part which are vertically arranged; the inner sides of the first connecting parts of the two connecting pieces are opposite, the inner sides of the second connecting parts of the two connecting pieces are opposite, and the spring main body is arranged between the first connecting parts of the two connecting pieces;
the second connecting part of one of the connecting pieces is connected with the driving mechanism, and the second connecting part of the other connecting piece is connected with the sensor assembly.
8. The elastomer coupling dynamics experimental apparatus of claim 1, further comprising a shield, wherein the shield is mounted on the upper surface of the elastomer;
the protective cover comprises a straight cylinder part and a contraction cylinder part which are arranged from top to bottom, the straight cylinder part is connected with the large-opening end of the contraction cylinder part, and the small-opening end of the contraction cylinder part is connected with the elastic body;
the straight cylinder part is formed by enclosing a transparent baffle, and the shrinkage cylinder part is formed by enclosing a soft material.
9. The elastomer coupling dynamics experimental apparatus of claim 8, further comprising a base;
the sensor assembly, the driving mechanism and the shear spring assembly are all mounted on the base;
the protection casing still includes the support, the bottom of support with the base is connected, straight section of thick bamboo portion with the top of support is connected.
10. An experimental system, characterized by comprising the elastomer coupling dynamics experimental apparatus according to any one of claims 1 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113990156A (en) * | 2021-11-05 | 2022-01-28 | 中国矿业大学(北京) | Double-plastid gap nonlinear dynamics experimental device |
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