CN113990156A - Double-plastid gap nonlinear dynamics experimental device - Google Patents
Double-plastid gap nonlinear dynamics experimental device Download PDFInfo
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- CN113990156A CN113990156A CN202111310751.XA CN202111310751A CN113990156A CN 113990156 A CN113990156 A CN 113990156A CN 202111310751 A CN202111310751 A CN 202111310751A CN 113990156 A CN113990156 A CN 113990156A
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Abstract
The application relates to the field of experimental devices, in particular to a double-plastid gap nonlinear dynamics experimental device. The experimental device for the double-plastid gap nonlinear dynamics comprises an inner plastid, an outer plastid, a shearing motion assembly, a gap nonlinear assembly, a sensor assembly and a supporting assembly; the inner plastid penetrates through the outer plastid, and the inner plastid and the outer plastid are connected through the shear motion assembly; the inner mass is connected with one side of the gap nonlinear component, and the outer mass is connected with the other side of the gap nonlinear component; the sensor assembly is used for measuring acceleration time histories of the inner mass and the outer mass in the horizontal and vertical directions; the support assembly is connected to the inner body. The application provides a two plastid clearance nonlinear dynamics experimental apparatus can conveniently carry out two plastid clearance nonlinear dynamics experiments effectively, can be used for carrying out experimental verification to current nonlinear dynamics theory.
Description
Technical Field
The application relates to the field of experimental devices, in particular to a double-plastid gap nonlinear dynamics experimental device.
Background
Linear kinetics have been developed and perfected in both theoretical and experimental studies, and have been used in engineering in a wide and highly efficient manner. However, some practical problems are beyond the resolution of linear dynamics, and nonlinear dynamics is a new problem developed based on the problems. At present, a plurality of important research results are obtained for the nonlinear vibration theory, a plurality of nonlinear phenomena encountered in production can be effectively explained, but because of a few nonlinear experimental devices, the experimental research of the nonlinear dynamics is relatively lagged behind the theoretical research, and the development of the nonlinear dynamics is hindered.
Disclosure of Invention
The application aims to provide a biplasmic gap nonlinear dynamics experimental device which is used for simply and effectively carrying out biplasmic nonlinear dynamics experimental research.
The application provides a double-plastid gap nonlinear dynamics experimental device which comprises an inner plastid, an outer plastid, a shearing motion assembly, a gap nonlinear assembly, a sensor assembly and a supporting assembly, wherein the inner plastid is connected with the outer plastid through a shear motion assembly;
the inner plastid penetrates through the outer plastid, and the inner plastid and the outer plastid are connected through the shear motion assembly;
the inner mass is connected with one side of the gap nonlinear component, and the outer mass is connected with the other side of the gap nonlinear component;
the sensor assembly is used for measuring acceleration time histories of the inner mass and the outer mass in the horizontal and vertical directions;
the support assembly is connected to the inner body.
In the above technical solution, further, the inner body includes an inner body top plate, an inner body side plate, a vibration motor, and an inner body bottom plate;
the inner body top plate, the two inner body side plates and the inner body bottom plate are arranged in an enclosing mode to form a hollow square body, the inner body top plate and the inner body bottom plate are arranged in parallel up and down and are positioned on the inner sides of the two inner body side plates which are arranged in parallel left and right, and the inner body side plates, the inner body top plate and the inner body bottom plate are connected with each other;
the vibration motor is positioned on the inner side of the hollow square body formed by the enclosing of the inner mass top plate, the inner mass side plate and the inner mass bottom plate, and the vibration motor is connected with the inner mass bottom plate.
In the above technical solution, further, the outer body includes an outer body transverse plate and an outer body vertical plate;
the two exosomal transverse plates and the two exosomal vertical plates are surrounded to form a hollow square body, the two exosomal transverse plates are arranged in parallel up and down and are positioned at the inner sides of the two exosomal vertical plates which are placed in parallel left and right, the exosomal transverse plates and the exosomal vertical plates are connected with each other, and a round hole is formed in the middle of the exosomal vertical plates.
In the above technical solution, further, the shearing motion assembly includes a square rubber block and a pressure plate;
the square rubber block and the pressing plate are symmetrically arranged between the inner plastid and the outer plastid in the vertical direction, the upper surface and the lower surface of the square rubber block at the upper end are respectively connected with the lower surface of the pressing plate and the upper surface of the top plate of the inner plastid, the upper surface and the lower surface of the direction rubber block at the lower end are respectively connected with the lower surface of the bottom plate of the inner plastid and the upper surface of the pressing plate, and the pressing plate is arranged between the square rubber block and the outer plastid.
In the above technical solution, further, the gap nonlinear component includes a collision body, a circular rubber spring, and a spring retainer ring;
the collision body consists of a flat plate and a cylinder, the cylinder of the collision body is positioned in the center of the flat plate of the collision body, the cylinder of the collision body penetrates through the round hole of the vertical plate of the outer body, one surface of the cylinder of the collision body, which is far away from the flat plate of the collision body, faces the side plate of the inner body, and the collision body is installed on the vertical plate of the outer body;
the spring limiting ring consists of a flat plate and two arc-shaped plates, the two arc-shaped plates of the spring limiting ring are symmetrically arranged on the same side of the flat plate of the spring limiting ring from top to bottom, the circle centers of the two arc-shaped plates of the spring limiting ring respectively point to the center of the spring limiting ring, and an observation hole is reserved between the two arc-shaped plates of the spring limiting ring;
the spring limiting ring is arranged on one side, away from the vibration motor, of the inner mass side plate, and the arc-shaped plate of the spring limiting ring is away from the inner mass side plate;
the circular rubber spring is placed in the spring limiting ring, the cylinder of the collision body is inserted into a round hole formed by the two arc-shaped plates of the spring limiting ring, the centers of the cylinder of the collision body, the circular rubber spring and the arc-shaped plates of the spring limiting ring are positioned on the same axis, and a gap is reserved between the end face of the cylinder of the collision body and the circular rubber spring.
In the above technical solution, further, the sensor assembly includes a first acceleration sensor, a second acceleration sensor, a third acceleration sensor, and a fourth acceleration sensor;
the first acceleration sensor is mounted on one side, away from the vibration motor, of the inner mass side plate, the second acceleration sensor is mounted on one side, away from the collision body cylinder, of the collision body flat plate, the third acceleration sensor is mounted on the upper surface of the outer mass transverse plate, and the fourth acceleration sensor is mounted on one side, away from the vibration motor, of the inner mass top plate.
In the above technical solution, further, the support assembly includes a shear vibration isolation spring and a bottom plate;
the lower surface of the shearing vibration isolation spring is connected with the upper surface of the bottom plate, and the upper surface of the shearing vibration isolation spring is connected with the lower surface of the inner mass bottom plate.
Compared with the prior art, the beneficial effect of this application is:
the application provides a two plastid clearance nonlinear dynamics experimental apparatus includes endosome, exoplastid, shearing movement component, clearance nonlinear assembly, sensor module and supporting component.
Wherein the inner plastid penetrates through the outer plastid, and the inner plastid and the outer plastid are connected through the shear motion assembly; specifically, the vibrating motor drives the inner mass to move, the inner mass and the outer mass generate relative movement in the horizontal direction under the action of the shearing movement assembly, when the relative displacement between the inner mass and the outer mass in the horizontal direction exceeds the distance between a collision body installed on the outer mass and a circular rubber spring installed in a spring limiting ring of the inner mass, collision can be generated between the collision body and the circular rubber spring, so that the circular rubber spring is elastically deformed, and further, the nonlinearity of the horizontal movement of the inner mass and the outer mass is caused.
Meanwhile, the sensor assembly is used for measuring acceleration time histories of the inner mass and the outer mass along the horizontal direction and the vertical direction, and horizontal displacement and vertical displacement of the inner mass and the outer mass can be obtained through twice integration.
That is to say, through this experimental apparatus can conveniently carry out the nonlinear dynamics experiment in two plastid clearances effectively, can be used for carrying out the experimental verification to current nonlinear dynamics theory.
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 a experimental apparatus for nonlinear dynamics of biplasmic gap provided in the present application;
FIG. 2 is a second structural diagram of the experimental apparatus for nonlinear dynamics of biplasmic gap provided in the present application;
FIG. 3 is a third structural diagram of the experimental apparatus for nonlinear dynamics of biplasmic gap provided in the present application;
FIG. 4 is a fourth structural diagram of the experimental apparatus for nonlinear dynamics of biplasmic gap provided in the present application;
the reference numbers in the figures denote:
101-an endoplasmic body; 102-an exoplast; 103-a shear motion assembly; 104-gap nonlinear component; 105-a sensor assembly; 106-a support assembly; 107-endoplasmic roof; 108-endosome sideboards; 109-a vibration motor; 110-an endosome floor; 111-exosomal transverse plate; 112-an exosomal riser; 113-square rubber block; 114-a platen; 115-collision volume; 116-circular rubber springs; 117-spring retainer rings; 118-a first acceleration sensor; 119-a second acceleration sensor; 120-a third acceleration sensor; 121-a fourth acceleration sensor; 122-shear isolation springs; 123-a bottom plate; 124-an elastomer outer bracket; 125-elastomeric inner carrier; 126-an elastomer; 127-pressing strip.
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.
Referring to fig. 1 to 4, the experimental apparatus for two-mass gap nonlinear dynamics provided by the present application includes an inner mass 101, an outer mass 102, a shear motion assembly 103, a gap nonlinear assembly 104, a sensor assembly 105, and a support assembly 106.
The inner body 101 comprises an inner body top plate 107, an inner body side plate 108, a vibration motor 109 and an inner body bottom plate 110; the inner mass top plate 107 and the inner mass bottom plate 110 are arranged in parallel up and down and are positioned on the inner sides of two left and right parallel inner mass side plates 108, the inner mass top plate 107 and the inner mass bottom plate 110 are connected with each other to form a hollow square body in an enclosing manner, the vibration motor 109 is positioned on the inner sides of the hollow square body formed in an enclosing manner of the inner mass top plate 107, the inner mass side plates 108 and the inner mass bottom plate 110, and the vibration motor 109 is connected with the inner mass bottom plate 110.
The outer body 102 comprises an outer body transverse plate 111 and an outer body vertical plate 112; the round hole is opened in the middle of exosomal riser 112, and two exosomal diaphragms 111 parallel arrangement from top to bottom just are located two and control the inboard of parallel placement exosomal riser 112, and the interconnection encloses between exosomal diaphragm 111 and the exosomal riser 112 and establishes the formation cavity square body.
The inner body 101 penetrates through the outer body 102, and the inner body 101 and the outer body 102 are connected through a shearing motion assembly 103;
the shearing motion assembly 103 includes a square rubber block 113 and a pressure plate 114; specifically, at least two square rubber blocks 113 (four square rubber blocks 113 are shown in the figure to improve the shearing relative movement) and two pressing plates 114 are symmetrically arranged between the inner body 101 and the outer body 102 in the up-down direction, the upper and lower surfaces of the square rubber block 113 at the upper end are respectively connected with the lower surface of the pressing plate 114 and the upper surface of the inner body top plate 107, the upper and lower surfaces of the direction rubber block 113 at the lower end are respectively connected with the lower surface of the inner body bottom plate 110 and the upper surface of the pressing plate 114, and the pressing plate 114 is arranged between the square rubber blocks 113 and the outer body 102.
The gap nonlinear component 104 comprises a collision body 115, a circular rubber spring 116 and a spring stop collar 117; specifically, the collision body 115 is composed of a flat plate and a cylinder, the cylinder of the collision body 115 is located in the center of the flat plate of the collision body 115, the cylinder of the collision body 115 passes through the circular hole of the outer body vertical plate 112, one surface of the cylinder of the collision body 115, which is far away from the flat plate of the collision body 115, faces the inner body side plate 108, and the collision body 115 is installed on the outer body vertical plate 112; the spring limiting ring 117 consists of a flat plate and two arc-shaped plates, the two arc-shaped plates of the spring limiting ring 117 are symmetrically arranged at the same side of the flat plate of the spring limiting ring 117 from top to bottom, the circle centers of the two arc-shaped plates of the spring limiting ring 117 point to the center of the spring limiting ring 117 respectively, and an observation hole is reserved between the two arc-shaped plates of the spring limiting ring 117; the spring limiting ring 117 is mounted on one side of the inner mass side plate 108, which is far away from the vibration motor 109, and the arc-shaped plate of the spring limiting ring 117 is far away from the inner mass side plate 108; the circular rubber spring 116 is placed in the spring limiting ring 117, the cylinder of the collision body 115 is inserted into a round hole formed by two arc-shaped plates of the spring limiting ring 117, the centers of the cylinder of the collision body 115, the circular rubber spring 116 and the arc-shaped plates of the spring limiting ring 117 are positioned on the same axis, and a gap is left between the end surface of the cylinder of the collision body 115 and the circular rubber spring 116.
The inner body 101 penetrates through the outer body 102, and the inner body 101 and the outer body 102 are connected through a shearing motion assembly 103; specifically, the vibration motor 109 drives the inner mass 101 to move, the inner mass 101 and the outer mass 102 generate a relative movement in a horizontal direction under the action of the shearing movement assembly 103, and when a relative displacement in the horizontal direction between the two exceeds a distance between the collision body 115 mounted on the outer mass 102 and the circular rubber spring 116 mounted inside the spring retainer 117, a collision is generated between the collision body 115 and the circular rubber spring 116, so that the circular rubber spring 116 is elastically deformed, and a nonlinear movement in the horizontal direction between the inner mass 101 and the outer mass 102 is further caused.
Meanwhile, the sensor assembly 105 is used for measuring acceleration time histories of the inner mass 101 and the outer mass 102 in the horizontal and vertical directions, and horizontal and vertical displacements of the inner mass 101 and the outer mass 102 can be obtained through twice integration. The sensor assembly 105 includes a first acceleration sensor 118, a second acceleration sensor 119, a third acceleration sensor 120, and a fourth acceleration sensor 121; a first acceleration sensor 118 is installed on one side of the inner mass side plate 108 away from the vibration motor 109, and is used for measuring the acceleration of the inner mass 101 in the horizontal direction; a second acceleration sensor 119 is installed on the side of the plate of the impactor 115 remote from the cylinder of the impactor 115 to measure the acceleration of the outer mass 102 in the horizontal direction; the third acceleration sensor 120 is mounted on the upper surface of the horizontal plate 111 of the outer mass and is used for measuring the acceleration of the outer mass 102 in the vertical direction; a fourth acceleration sensor 121 is mounted on the inner body top plate 107 on a side away from the vibration motor 109 for measuring the acceleration of the inner body 101 in the vertical direction.
The support assembly 106 includes shear isolation springs 122 and a base plate 123, a lower surface of the shear isolation springs 122 is coupled to an upper surface of the base plate 123, and an upper surface of the shear isolation springs 122 is coupled to a lower surface of the inner mass base plate 110.
In an alternative to this embodiment, the present application provides another embodiment of the gap non-linear assembly 104, as shown in fig. 4, the gap nonlinear assembly 104 includes an outer bracket 124, an inner bracket 125, an elastic body 126, and a pressing strip 127, the outer bracket 124 is mounted on the side of the inner body side plate 108 away from the vibration motor 109, the inner bracket 125 is mounted on the side of the outer body vertical plate 112 away from the inner body 101, one side of the elastic body 126 is mounted on the inner bracket 125 through the pressing strip 127, the other side of the elastic body 126 is mounted on the outer bracket 124 through the pressing strip 127, the looseness of the elastic body 126 can be adjusted as required, when the vibration motor 109 drives the inner mass 101 and the outer mass 102 to generate a relative displacement in the horizontal direction which is larger than the relaxation degree of the elastic body 126, the elastomer 126 may undergo tensile deformation causing non-linear motion of the inner body 101 and the outer body 102.
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 (7)
1. A biplasmid gap nonlinear dynamics experimental device is characterized by comprising an inner plastid, an outer plastid, a shearing motion assembly, a gap nonlinear assembly, a sensor assembly and a supporting assembly;
the inner plastid penetrates through the outer plastid, and the inner plastid and the outer plastid are connected through the shear motion assembly;
the inner mass is connected with one side of the gap nonlinear component, and the outer mass is connected with the other side of the gap nonlinear component;
the sensor assembly is used for measuring acceleration time histories of the inner mass and the outer mass in the horizontal and vertical directions;
the support assembly is connected to the inner body.
2. The experimental apparatus for the nonlinear dynamics of biplasmic gap according to claim 1, wherein: the inner body comprises an inner body top plate, an inner body side plate, a vibration motor and an inner body bottom plate;
the inner body top plate, the two inner body side plates and the inner body bottom plate are arranged in an enclosing mode to form a hollow square body, the inner body top plate and the inner body bottom plate are arranged in parallel up and down and are positioned on the inner sides of the two inner body side plates which are arranged in parallel left and right, and the inner body side plates, the inner body top plate and the inner body bottom plate are connected with each other;
the vibration motor is positioned on the inner side of the hollow square body formed by the enclosing of the inner mass top plate, the two inner mass side plates and the inner mass bottom plate, and the vibration motor is connected with the inner mass bottom plate.
3. The experimental apparatus for the nonlinear dynamics of biplasmic gap according to claim 1, wherein: the exosomal comprises an exosomal transverse plate and an exosomal vertical plate;
the two exosomal transverse plates and the two exosomal vertical plates are surrounded to form a hollow square body, the two exosomal transverse plates are arranged in parallel up and down and are positioned at the inner sides of the two exosomal vertical plates which are placed in parallel left and right, the exosomal transverse plates and the exosomal vertical plates are connected with each other, and a round hole is formed in the middle of the exosomal vertical plates.
4. The experimental apparatus for the nonlinear dynamics of biplasmic gap according to claim 1, wherein: the shearing motion assembly comprises a square rubber block and a pressing plate;
the square rubber block and the pressing plate are symmetrically arranged between the inner plastid and the outer plastid in the vertical direction, the upper surface and the lower surface of the square rubber block at the upper end are respectively connected with the lower surface of the pressing plate and the upper surface of the top plate of the inner plastid, the upper surface and the lower surface of the direction rubber block at the lower end are respectively connected with the lower surface of the bottom plate of the inner plastid and the upper surface of the pressing plate, and the pressing plate is arranged between the square rubber block and the outer plastid.
5. The experimental apparatus for the nonlinear dynamics of biplasmic gap according to claim 1, wherein: the gap nonlinear assembly comprises a collision body, a round rubber spring and a spring limiting ring;
the collision body consists of a flat plate and a cylinder, the cylinder of the collision body is positioned in the center of the flat plate of the collision body, the cylinder of the collision body penetrates through the round hole of the vertical plate of the outer body, one surface of the cylinder of the collision body, which is far away from the flat plate of the collision body, faces the side plate of the inner body, and the collision body is installed on the vertical plate of the outer body;
the spring limiting ring consists of a flat plate and two arc-shaped plates, the two arc-shaped plates of the spring limiting ring are symmetrically arranged on the same side of the flat plate of the spring limiting ring from top to bottom, the circle centers of the two arc-shaped plates of the spring limiting ring respectively point to the center of the spring limiting ring, and an observation hole is reserved between the two arc-shaped plates of the spring limiting ring;
the spring limiting ring is arranged on one side, away from the vibration motor, of the inner mass side plate, and the arc-shaped plate of the spring limiting ring is away from the inner mass side plate;
the circular rubber spring is placed in the spring limiting ring, the cylinder of the collision body is inserted into a round hole formed by the two arc-shaped plates of the spring limiting ring, the centers of the cylinder of the collision body, the circular rubber spring and the arc-shaped plates of the spring limiting ring are positioned on the same axis, and a gap is reserved between the end face of the cylinder of the collision body and the circular rubber spring.
6. The experimental apparatus for the nonlinear dynamics of biplasmic gap according to claim 1, wherein: the sensor assembly comprises a first acceleration sensor, a second acceleration sensor, a third acceleration sensor and a fourth acceleration sensor;
the first acceleration sensor is mounted on one side, away from the vibration motor, of the inner mass side plate, the second acceleration sensor is mounted on one side, away from the collision body cylinder, of the collision body flat plate, the third acceleration sensor is mounted on the upper surface of the outer mass transverse plate, and the fourth acceleration sensor is mounted on one side, away from the vibration motor, of the inner mass top plate.
7. The experimental apparatus for the nonlinear dynamics of biplasmic gap according to claim 1, wherein: the support assembly comprises a shear vibration isolation spring and a bottom plate;
the lower surface of the shearing vibration isolation spring is connected with the upper surface of the bottom plate, and the upper surface of the shearing vibration isolation spring is connected with the lower surface of the inner mass bottom plate.
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