CN214098861U - Multi-parameter tuning experimental system based on mass spring damping - Google Patents
Multi-parameter tuning experimental system based on mass spring damping Download PDFInfo
- Publication number
- CN214098861U CN214098861U CN202023156496.1U CN202023156496U CN214098861U CN 214098861 U CN214098861 U CN 214098861U CN 202023156496 U CN202023156496 U CN 202023156496U CN 214098861 U CN214098861 U CN 214098861U
- Authority
- CN
- China
- Prior art keywords
- rod
- spring
- damping
- screw rod
- input
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
Landscapes
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
- Computational Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model relates to a mass spring damping multiparameter tuning experimental system, which comprises a supporting frame, a damping adjusting mechanism, a mass block-spring mechanism, a sine input mechanism, a pulse generating mechanism and a detection and servo control system, wherein the damping adjusting mechanism, the mass block-spring mechanism, the sine input mechanism, the pulse generating mechanism and the detection and servo control system are arranged on the supporting frame; the damping adjusting mechanism can adjust the damping coefficient of the system; the sine input mechanism can form sine displacement input; the mass block-spring mechanism comprises a spring, a connecting plate and a connecting rod, wherein two ends of the spring are respectively and fixedly connected with the sine input rod and the connecting plate, one end of the connecting rod is fixedly connected with the bottom surface of the connecting plate, and the other end of the connecting rod is fixedly connected with the powerful magnet; the pulse generating mechanism can cause the oscillation of the powerful magnet-spring-damping system by the suspension ball impacting the pulse input guide rod. The utility model discloses a second order mechanical power system, damping coefficient, input frequency, the input amplitude that can governing system can carry out analysis and synthesis to control theoretical typical problem, is the teaching, scientific research, the experiment platform of a comprehensiveness, integration.
Description
Technical Field
The utility model belongs to the technical field of the tuning system, especially, relate to based on tuned experimental system of mass spring damping multi-parameter.
Background
The spring-mass-damping resonance system is a second-order oscillation system which is most common in control theory teaching and scientific research and is one of the most intuitive research carriers of control theory and algorithm; the system consisting of spring-mass-damping is also the most common mechanical vibration system and has a rather wide range of applications in life, of which the damper is one. The damping device is a main component for absorbing and dissipating energy generated in the vibration process, and the capacity of the damping device for absorbing and dissipating the energy is directly related to the safety and stability of the system. The buffer is seen everywhere in life, such as the shock absorption device of our automobile and the buffer used for consuming collision energy, the performance of the buffer system directly influences the stability of the automobile and the safety of a driver; whether the stability of the buffer system directly influences the success of rendezvous and docking when the space implementation rendezvous and docking of Tiangong I is carried out in the space, and in addition, the mass spring damping system is a classical teaching model based on the automatic control principle. Therefore, the research on the spring-mass-damping system has very deep practical significance.
The control theory and technology are closely linked with the national civilian life, and the control theory and technology relate to the fields of military use, civil use, aviation, aerospace, navigation, education, scientific research and the like. The control theory and technology are the foundation of various technologies in the intelligent era, are basic theory courses of new national engineering construction, and are the foundation of advanced theories and technologies such as intelligent control, artificial intelligence, robots and the like. However, the teaching experiment equipment of the control theory of the colleges and universities mostly adopts Matlab simulation and an RLC oscillation circuit system. The automatic control theory and the traditional electronic automatic control principle experimental box thereof are abstract for beginners, are difficult to show key concepts and principles in the control theory, are difficult to combine the theory and practice, are poor in intuition, are backward in teaching means, and are difficult to meet the requirements of current technical development and new engineering teaching.
Therefore, the mass spring damping-based multi-parameter tuning experimental system suitable for teaching and scientific research of control theory technology and capable of running through experiments from the foundation to the frontier of the control theory is researched, and has important significance for education and development of new engineering and intelligent technology.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be suitable for control theory technique teaching and scientific research, can run through the tuned experimental system based on mass spring damping multiparameter of control theory from the experiment of basis to the forward position.
The utility model provides a its technical problem take following technical scheme to realize:
the multi-parameter tuning experimental system based on mass spring damping comprises a supporting frame, and a damping adjusting mechanism, a mass-spring mechanism, a sine input mechanism, a pulse generating mechanism and a detection and servo control system which are arranged on the supporting frame;
the damping adjusting mechanism comprises a left conductive polar plate, a right conductive polar plate and a strong magnet; the left conductive polar plate and the right conductive polar plate are symmetrically distributed on two sides of the strong magnet, and the left conductive polar plate and the right conductive polar plate can be far away from or close to the strong magnet through a displacement adjusting mechanism, so that the damping coefficient of the system is adjusted;
the sine input mechanism comprises a vertical optical axis guide rail, a sine input rod and an adjustable eccentricity rotary table; one end of the vertical optical axis guide rail is fixed on a top plate of the supporting frame, and the sine input rod is installed on the vertical optical axis guide rail and can move up and down along the vertical optical axis guide rail under the driving of the eccentric distance adjustable turntable to form sine displacement input;
the mass block-spring mechanism comprises a spring, a connecting plate and a connecting rod, wherein two ends of the spring are respectively and fixedly connected with the sine input rod and the connecting plate, one end of the connecting rod is fixedly connected with the bottom surface of the connecting plate, and the other end of the connecting rod is fixedly connected with the powerful magnet; the pulse generating mechanism comprises a suspension ball, a pulse supporting rod and a pulse input guide rod; the pulse supporting rod is vertically fixed on the top plate, the suspension ball is installed on the pulse supporting rod and can rotate compared with the pulse supporting rod, one end of the pulse input guide rod is located above the top plate, the other end of the pulse input guide rod sequentially penetrates through the top plate and the vertical optical axis guide rail and is fixedly connected with the connecting plate, and the suspension ball impacts the pulse input guide rod to cause oscillation of the powerful magnet-spring-damping system.
Furthermore, the detection and servo control system comprises an upper computer, a servo motor driver and a laser displacement sensor; the laser displacement sensor is arranged on the top plate and can detect the displacement of the connecting plate; the servo motor driver and the laser displacement sensor are connected to an upper computer through an input and output interface board, and the upper computer receives signals detected by the laser displacement sensor and can control the servo motor to work through the servo motor driver.
Further, displacement adjustment mechanism includes positive and negative screw rod, first guide rail, the second guide rail parallel with positive and negative screw rod and that distribute in positive and negative screw rod both sides, left side conductive polar plate, right conductive polar plate pass respectively the both ends of positive and negative screw rod, first guide rail, second guide rail, and with positive and negative screw rod threaded connection.
Furthermore, one side of the adjustable eccentricity rotating disc is coaxially connected with a servo motor, an eccentric shaft at the output end of the adjustable eccentricity rotating disc can adjust the distance between the eccentric shaft and the center of the rotating disc through an eccentric adjusting mechanism, the tail end of the eccentric shaft is fixedly connected with a sliding block, the sine input rod forms a sliding rail along the axial direction of the sine input rod, the sliding block is positioned on the sliding rail and can move along the sliding rail, and when the adjustable eccentricity rotating disc rotates under the driving of the servo motor, the eccentric shaft drives the sliding block to move on the sliding rail and drives the sine input rod to form sine up-and-down motion along a vertical guide rail.
Furthermore, the eccentric adjusting mechanism comprises an adjusting screw rod, the adjusting screw rod is limited in a sliding groove on the surface of the rotating disc with the adjustable eccentricity, an adjusting slider nut is connected to the adjusting screw rod in a threaded mode, one end of the eccentric shaft is fixed to the adjusting slider nut, and the adjusting slider nut can move relative to the adjusting screw rod by rotating the adjusting screw rod, so that the eccentricity of the eccentric shaft is adjusted.
Furthermore, the two ends of the adjusting screw are limited through the first adjusting screw support and the second adjusting screw support, the adjusting slider nut and the adjusting screw are embedded into the sliding groove of the adjustable-eccentricity turntable through thread fit, and the adjusting slider nut can slide along the sliding groove of the adjustable-eccentricity turntable under the driving of the adjusting screw.
Furthermore, both sides of the connecting plate penetrate through fixed guide rods, and the fixed guide rods are vertically fixed inside the supporting frame, so that the connecting plate can only move along the direction of the fixed guide rods.
Furthermore, the support frame comprises a bottom plate, a left side plate, a right side plate and a top plate which form a square frame structure.
The utility model has the advantages that:
1. the mass-spring mechanism and the damping adjusting mechanism of the utility model are connected in series to form a mass-spring-damping second-order oscillation system with adjustable damping, and the input of the system can be pulse force, step displacement and sine harmonic displacement; the output of the system is the displacement change of the mass block after the action of the mass block input signal, and the damping coefficient of the system is adjusted by a damping adjusting mechanism, so that a multi-parameter adjustable second-order resonance system is formed;
2. the damping adjusting mechanism of the utility model utilizes the lenz law principle, and the positive and negative screw rods are rotated through the positive rotation handle or the negative rotation handle to drag the left/right conductive polar plates to separate towards two sides or move towards the center in a combining way, and the distance between the two guide plates is adjusted to change the magnetic field intensity, thereby adjusting the damping coefficient of the system;
3. the sine mechanism of the utility model can adjust the frequency and amplitude of the input harmonic signal, so as to research the frequency response principle of the system; in addition, when the mass-spring-damping system is interfered by the outside and is in an oscillation state, the mass-spring-damping system can be controlled by a control system consisting of an upper computer and a servo system according to a certain control algorithm so as to quickly eliminate the vibration of the system; therefore, the utility model discloses a typical second order driving system can regard as scientific research personnel's theoretical verification platform, in theoretical teaching, can rely on the utility model discloses the realization is from classical control to modern control's integration through education, leads the student and realizes the conversion from zero basis to engineering technical expert.
Drawings
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus are not intended to limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.
Fig. 1 is a schematic structural diagram of a mass-spring-damping-based multi-parameter tuning experimental system provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the rear of the mass-spring-damping-based multi-parameter tuning experimental system provided in the embodiment of the present invention;
fig. 3 is a schematic view of a partial structure of a sine input mechanism of the system provided in the embodiment of the present invention;
fig. 4 is a simplified schematic diagram of a sine input mechanism provided in an embodiment of the present invention;
description of the drawings: fig. 4 is a schematic diagram of the structure of the sine input mechanism shown in fig. 3, and is not completely consistent with an actual knot.
Detailed Description
First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be described in detail below by way of example, but all the descriptions are only for illustrative purpose and should not be construed as forming any limitation to the present invention. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The present invention will be described in detail with reference to fig. 1 to 4.
EXAMPLE 1 Adjustable damping mechanism
As shown in fig. 1 to 4, the multi-parameter tuning experimental system based on mass-spring damping comprises a supporting frame, and a damping adjusting mechanism, a mass-spring mechanism, a sine input mechanism, a pulse generating mechanism and a detection and servo control system which are arranged on the supporting frame; wherein the supporting frame comprises a bottom plate 10, a left side plate 4, a right side plate 16 and a top plate 3 which form a square frame structure.
The damping adjusting mechanism comprises a left conductive pole plate 13, a right conductive pole plate 14 and a strong magnet 12; the left conductive pole plate 13 and the right conductive pole plate 14 are symmetrically distributed on two sides of the strong magnet 12, and the left conductive pole plate 13 and the right conductive pole plate 14 can be far away from or close to the strong magnet 12 through a displacement adjusting mechanism, so as to adjust the damping coefficient of the system.
The sine input mechanism comprises a vertical optical axis guide rail 19, a sine input rod 18 and an adjustable eccentricity turntable 23; one end of the vertical optical axis guide rail 19 is fixed on the top plate 3 of the supporting frame through a flange seat 20, the sine input rod 18 is installed on the vertical optical axis guide rail 19 through a sliding bearing and can move up and down along the vertical optical axis guide rail 19 under the driving of an adjustable eccentricity turntable 23 to form sine displacement input;
the mass-spring mechanism comprises a spring 17, a connecting plate 6 and a connecting rod 15, wherein two ends of the spring 17 are respectively fixedly connected with the sine input rod 18 and the connecting plate 6 through screws, one end of the connecting rod 15 is fixedly connected with the bottom surface of the connecting plate 6, and the other end of the connecting rod 15 is fixedly connected with the powerful magnet 12; the mass-spring mechanism and the damping adjusting mechanism are connected in series to form a damping adjustable mass-spring-damping second-order oscillation system, the input of the system is external force, displacement disturbance or harmonic displacement input of a sine mechanism, the output of the system is displacement change of the mass after external force or displacement disturbance, and the damping coefficient of the system is adjusted through the damping adjusting mechanism; the pulse generating mechanism is used for generating pulse input and comprises a suspension ball 1, a pulse support rod 2 and a pulse input guide rod 21; the pulse support rod 2 is vertically fixed on the top plate 3, the suspension ball 1 is mounted on the pulse support rod 2 and can rotate compared with the pulse support rod 2, specifically, in the embodiment, the suspension ball 1 is fixed at the tail end of a suspension ball fixing rod 36, the suspension ball fixing rod 36 is fixed on a suspension ball fixing rod rotating shaft 37, and the suspension ball fixing rod rotating shaft 37 is hinged with the pulse support rod 2 and can rotate around an axis; one end of the pulse input guide rod 21 is positioned above the top plate 3, the other end of the pulse input guide rod passes through the top plate 3 and the vertical optical axis guide rail 19 in sequence and is fixedly connected with the connecting plate 6, and the pulse input guide rod 21 is impacted by the suspension ball 1, so that the oscillation of the powerful magnet-spring-damping system can be caused. Specifically, in operation: the suspension ball 1 is taken to a certain height and then released, the suspension ball 1 instantaneously impacts the pulse input guide rod 21 to generate instantaneous impact force on the pulse input guide rod 21, a typical pulse input signal is formed to cause the oscillation of the mass-spring-damping system, and the laser displacement sensor 22 detects that the displacement change is the pulse response of the mass-spring-damping second-order oscillation system; when the mass-spring system is subjected to an external force, the mass-spring system, including the powerful magnet 12, vibrates up and down.
In addition, in this embodiment, it is also considered that the detection and servo control system includes an upper computer, a servo motor driver, and a laser displacement sensor 22; the laser displacement sensor 22 is arranged on the top plate 3 and can detect the displacement of the connecting plate 6; the servo motor driver and the laser displacement sensor 22 are connected to an upper computer through an input and output interface board, and the upper computer receives signals detected by the laser displacement sensor 22 and can control the servo motor 25 to work through the servo motor driver; in this embodiment, the servomotor drive, the input-output interface board, are mounted in appropriate positions in the electrical control box 26.
It should be noted that the displacement adjusting mechanism includes a positive and negative screw 8, a first guide rail 7 and a second guide rail 9 which are parallel to the positive and negative screw 8 and distributed on two sides of the positive and negative screw 8, wherein two ends of the first guide rail 7 and the second guide rail 9 are both fixed on the left side plate 4 and the right side plate 16, two ends of the positive and negative screw 8 are in threaded limit connection with the left side plate 4 and the right side plate 16, a rotating handle 11 is installed at the tail end of the positive and negative screw 8, and the left conductive polar plate 13 and the right conductive polar plate 14 respectively penetrate through two ends of the positive and negative screw 8, the first guide rail 7 and the second guide rail 9 and are in threaded connection with the positive and negative screw 8, and it should be noted that the screw employs the positive and negative screw because when the screw rotates, the left conductive polar plate 13 and the right conductive polar plate 14 can move in; the Lenz's law is applied, namely when the intensity of magnetic field is fixed, the resistance force of the conductor moving in the magnetic field is in direct proportion to the moving speed of the conductor, and the proportionality coefficient is the damping coefficient; the forward and reverse screws are rotated by the forward or reverse rotating handle 11 to drag the left conductive pole plate 13 and the right conductive pole plate 14 to separate towards two sides or move towards the center in a combined manner, so that the magnetic field intensity is changed, and the damping coefficient of the system is adjusted.
In this embodiment, one side of the adjustable eccentricity turntable 23 is coaxially connected with a servo motor 25 through a rigid coupling, and can perform a rotational motion under the driving of the servo motor 25, wherein the servo motor 25 can be installed on the back of the supporting frame, an eccentric shaft 29 at the output end of the adjustable eccentricity turntable 23 can adjust the distance between the eccentric shaft and the center of the turntable through an eccentricity adjusting mechanism, a sliding block 32 is fixedly connected to the end of the eccentric shaft 29, the sine input rod 18 forms a sliding rail 31 along the axial direction thereof, the sliding block 32 is located on and can move along the sliding rail 31, and when the adjustable eccentricity turntable 23 is driven to rotate by the servo motor 25, the eccentric shaft 29 drives the sliding block 32 to move on the sliding rail 31 and drives the sine input rod 18 to form a sine up-and-down motion along the vertical optical axis guide rail 19; specifically, the eccentricity adjusting mechanism comprises an adjusting screw 27, the adjusting screw 27 is limited in a sliding groove on the surface of the adjustable eccentricity rotating disc 23, an adjusting slider nut 28 is connected to the adjusting screw 27 in a threaded manner, one end of the eccentric shaft 29 is fixed on the adjusting slider nut 28, the adjusting slider nut 28 can move relative to the adjusting screw 27 by rotating the adjusting screw 27, so that the eccentricity of the eccentric shaft 29 is adjusted, the amplitude r of the sinusoidal motion is changed, and the frequency ω of the sinusoidal motion can be changed by changing the rotating speed of the servo motor 25.
In this embodiment, two ends of the adjusting screw 27 are limited by the first adjusting screw support 30 and the second adjusting screw support 33, the adjusting slider nut 28 and the adjusting screw 27 are embedded into the sliding slot of the adjustable eccentricity rotating disc 23 through thread fit, and the adjusting slider nut 28 can slide along the sliding slot of the adjustable eccentricity rotating disc 23 under the driving of the adjusting screw 27; the two ends of the adjusting screw 27 are provided with straight grooves, and the two ends of the sliding groove of the adjustable eccentricity rotating disc 23 are provided with round holes, so that the adjusting screw 27 can be rotated by a screwdriver to adjust the eccentricity of the eccentric shaft 29, thereby changing the amplitude r of the sinusoidal motion, and the frequency omega of the sinusoidal motion can be changed by changing the rotating speed of the servo motor 25;
two sides of the connecting plate 6 penetrate through the fixed guide rods 5, the fixed guide rods 5 are vertically fixed inside the supporting frame, and two ends of the fixed guide rods 5 are fixedly connected with the bottom plate 10 and the top plate 3 of the supporting frame respectively, so that the connecting plate 6 can only move along the direction of the fixed guide rods.
The mass-spring mechanism and the damping adjusting mechanism form a typical mass-spring-damping resonance system, and when the mass is excited by external force or other external excitation, the mass can generate resonance motion with certain frequency; the damping coefficient of the system can be changed by adjusting the distance between the two polar plates of the damping adjusting mechanism, so that the resonant frequency of the system is changed; the sine input mechanism is an eccentric rotating mechanism, the sine input amplitude is adjusted by adjusting the eccentric distance, and the input frequency of the system is adjusted by adjusting the rotating speed of the servo motor; the pulse generator is used for generating pulse input, taking the suspension ball to a certain height, then releasing the suspension ball, and the suspension ball instantaneously impacts the guide rod of the mass-spring mechanism to generate the pulse input so as to cause the oscillation of the mass-spring-damping system
The eccentric shaft 29 drives the sliding block 32 to move on the sliding rail 31 and drives the sine input rod 18 to move up and down in a sine shape along the vertical guide rail 19
In addition, it should be added that the principle simplified structure schematic diagram of the sine input mechanism is shown in fig. 4, the sine input rod 18 moves up and down along the vertical optical axis guide rail 19, the distance of the up and down movement is l, the radius of the adjustable eccentricity rotating disc 23 is R, the eccentricity is R, the sliding block 32 can slide along the sine input rod 18 and can rotate along the adjustable eccentricity rotating disc 23 (simplified to a rod with radius R in figure 4), the sliding rail 31 and the sliding block 32 can rotate relatively, when the servo motor drives the eccentric distance adjustable turntable 23 to rotate around the axis at the angular frequency ω, one of l is r sin ω t, the sinusoidal displacement acts on the mass-spring-damping second-order oscillation system through the sinusoidal input rod 18 to form a typical harmonic input signal, and the displacement change of the mass detected by the laser displacement sensor 22 is the frequency response of the mass-spring-damping second-order oscillation system; it should be noted that: fig. 4 is only used to help understand the working principle of the sine input mechanism, and is not completely consistent with the actual system.
Claims (8)
1. Based on tuned experimental system of mass spring damping multi-parameter, its characterized in that: the device comprises a supporting frame, and a damping adjusting mechanism, a mass-spring mechanism, a sine input mechanism, a pulse generating mechanism and a detection and servo control system which are arranged on the supporting frame;
the damping adjusting mechanism comprises a left conductive polar plate, a right conductive polar plate and a strong magnet; the left conductive polar plate and the right conductive polar plate are symmetrically distributed on two sides of the strong magnet, and the left conductive polar plate and the right conductive polar plate can be far away from or close to the strong magnet through a displacement adjusting mechanism, so that the damping coefficient of the system is adjusted;
the sine input mechanism comprises a vertical optical axis guide rail, a sine input rod and an adjustable eccentricity rotary table; one end of the vertical optical axis guide rail is fixed on a top plate of the supporting frame, and the sine input rod is installed on the vertical optical axis guide rail and can move up and down along the vertical optical axis guide rail under the driving of the eccentric distance adjustable turntable to form sine displacement input;
the mass block-spring mechanism comprises a spring, a connecting plate and a connecting rod, wherein two ends of the spring are respectively and fixedly connected with the sine input rod and the connecting plate, one end of the connecting rod is fixedly connected with the bottom surface of the connecting plate, and the other end of the connecting rod is fixedly connected with the powerful magnet; the pulse generating mechanism comprises a suspension ball, a pulse supporting rod and a pulse input guide rod; the pulse supporting rod is vertically fixed on the top plate, the suspension ball is installed on the pulse supporting rod and can rotate compared with the pulse supporting rod, one end of the pulse input guide rod is located above the top plate, the other end of the pulse input guide rod sequentially penetrates through the top plate and the vertical optical axis guide rail and is fixedly connected with the connecting plate, and the suspension ball impacts the pulse input guide rod to cause oscillation of the powerful magnet-spring-damping system.
2. The mass-spring-damping-based multiparameter tuning experimental system of claim 1, wherein: the detection and servo control system comprises an upper computer, a servo motor driver and a laser displacement sensor; the laser displacement sensor is arranged on the top plate and can detect the displacement of the connecting plate; the servo motor driver and the laser displacement sensor are connected to an upper computer through an input and output interface board, and the upper computer receives signals detected by the laser displacement sensor and can control the servo motor to work through the servo motor driver.
3. The mass-spring-damping-based multiparameter tuning experimental system of claim 1, wherein: the displacement adjustment mechanism comprises a positive screw rod, a negative screw rod, a first guide rail and a second guide rail, wherein the first guide rail and the second guide rail are parallel to the positive screw rod and the negative screw rod and are distributed on two sides of the positive screw rod and the negative screw rod, and the left conductive polar plate and the right conductive polar plate respectively penetrate through two ends of the positive screw rod, the negative screw rod, the first guide rail and the second guide rail and are in threaded connection with the positive screw rod and the negative screw rod.
4. The mass-spring-damping-based multiparameter tuning experimental system of claim 1, wherein: one side of the adjustable eccentricity rotating disc is coaxially connected with a servo motor, an eccentric shaft at the output end of the adjustable eccentricity rotating disc can adjust the distance between the eccentric shaft and the circle center of the rotating disc through an eccentric adjusting mechanism, the tail end of the eccentric shaft is fixedly connected with a sliding block, the sine input rod forms a sliding rail along the axial direction of the sine input rod, the sliding block is positioned on the sliding rail and can move along the sliding rail, and when the adjustable eccentricity rotating disc rotates under the driving of the servo motor, the eccentric shaft drives the sliding block to move on the sliding rail and drives the sine input rod to form sine up-and-down motion along a vertical guide rail.
5. The mass-spring-damping-based multiparameter tuning experimental system of claim 4, wherein: the eccentric adjusting mechanism comprises an adjusting screw rod, the adjusting screw rod is limited in a sliding groove in the surface of the rotating disc with the adjustable eccentricity, an adjusting slider nut is connected to the adjusting screw rod in a threaded mode, one end of the eccentric shaft is fixed to the adjusting slider nut, and the adjusting slider nut can move relative to the adjusting screw rod by rotating the adjusting screw rod, so that the eccentricity of the eccentric shaft is adjusted.
6. The mass-spring-damping-based multiparameter tuning experimental system of claim 5, wherein: the two ends of the adjusting screw rod are limited through the first adjusting screw rod support and the second adjusting screw rod support, the adjusting slide block nut and the adjusting screw rod are embedded into the sliding groove of the adjustable-eccentricity turntable through thread fit, and the adjusting slide block nut can slide along the sliding groove of the adjustable-eccentricity turntable under the driving of the adjusting screw rod.
7. The mass-spring-damping-based multiparameter tuning experimental system of claim 1, wherein: and the two sides of the connecting plate penetrate through fixed guide rods, and the fixed guide rods are vertically fixed in the supporting frame, so that the connecting plate can only move along the direction of the fixed guide rods.
8. The mass-spring-damping-based multiparameter tuning experimental system of claim 1, wherein: the supporting frame comprises a bottom plate, a left side plate, a right side plate and a top plate which form a square frame structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010929994.0A CN112037621A (en) | 2020-09-07 | 2020-09-07 | Mass-spring-damping multi-parameter tuning experimental method |
| CN2020109299940 | 2020-09-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214098861U true CN214098861U (en) | 2021-08-31 |
Family
ID=73585671
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010929994.0A Pending CN112037621A (en) | 2020-09-07 | 2020-09-07 | Mass-spring-damping multi-parameter tuning experimental method |
| CN202011548884.6A Pending CN112509438A (en) | 2020-09-07 | 2020-12-24 | Mass-spring-damping multi-parameter tuning experimental method |
| CN202023156496.1U Active CN214098861U (en) | 2020-09-07 | 2020-12-24 | Multi-parameter tuning experimental system based on mass spring damping |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010929994.0A Pending CN112037621A (en) | 2020-09-07 | 2020-09-07 | Mass-spring-damping multi-parameter tuning experimental method |
| CN202011548884.6A Pending CN112509438A (en) | 2020-09-07 | 2020-12-24 | Mass-spring-damping multi-parameter tuning experimental method |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN112037621A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112037621A (en) * | 2020-09-07 | 2020-12-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Mass-spring-damping multi-parameter tuning experimental method |
| CN113611195B (en) * | 2021-08-10 | 2023-05-02 | 合肥工业大学 | Dynamic vibration reduction experimental device and experimental method |
| CN113917936A (en) * | 2021-09-27 | 2022-01-11 | 天津内燃机研究所（天津摩托车技术中心） | Vehicle inertia detection device and vehicle sway adjustment method |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130201793A1 (en) * | 2012-01-13 | 2013-08-08 | Spencer Lewis Rowse | Vibrator source system for improved seismic imaging |
| CN202720515U (en) * | 2012-07-27 | 2013-02-06 | 深圳市元创兴科技有限公司 | Mechanical control response experiment device |
| CN103514380B (en) * | 2013-10-23 | 2017-02-22 | 合肥工业大学 | Modeling method for analytical model of equivalent and linear damping coefficient of magnetorheological damper |
| JP6208699B2 (en) * | 2015-01-30 | 2017-10-04 | ファナック株式会社 | Servo controller that measures the lubrication characteristics of the machine by experimental mode analysis |
| CN105258891A (en) * | 2015-10-28 | 2016-01-20 | 南京航空航天大学 | Single-degree-of-freedom vibration test device |
| CN109632230A (en) * | 2019-02-18 | 2019-04-16 | 哈尔滨工程大学 | A kind of low resistance based on electronics spring is than Flow vibration experimental provision |
| CN112037621A (en) * | 2020-09-07 | 2020-12-04 | 天津职业技术师范大学(中国职业培训指导教师进修中心) | Mass-spring-damping multi-parameter tuning experimental method |
-
2020
- 2020-09-07 CN CN202010929994.0A patent/CN112037621A/en active Pending
- 2020-12-24 CN CN202011548884.6A patent/CN112509438A/en active Pending
- 2020-12-24 CN CN202023156496.1U patent/CN214098861U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112037621A (en) | 2020-12-04 |
| CN112509438A (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214098861U (en) | Multi-parameter tuning experimental system based on mass spring damping | |
| CN108844711B (en) | Wing type two-degree-of-freedom dynamic wind tunnel test device | |
| CN104020015B (en) | Ultrasonic drill exploration sample testing experiment platform | |
| CN109178285A (en) | A kind of propulsion device and underwater robot for underwater robot | |
| CN103938751B (en) | Self-powered semi-active tuned mass damper | |
| CN109610675B (en) | Horizontal rotation combined type building vibration control system | |
| CN201600231U (en) | Angular vibration test table based on flexible hinge mechanism | |
| CN203834722U (en) | Self-powered type semi-active tuned mass damper | |
| CN106828644B (en) | Patch type piezoelectric driving four-wheel planetary detection robot and working method thereof | |
| CN112002187A (en) | Multi-parameter tuning experimental system based on mass spring damping | |
| CN108694881B (en) | Teaching experiment device for demonstrating performance of dynamic vibration absorber | |
| Ning et al. | A dual-mode excitation method of flexure hinge type piezoelectric stick-slip actuator for suppressing backward motion | |
| CN104723820A (en) | Energy-feed damping device capable of producing energy and energy capture method thereof | |
| CN107878286A (en) | A kind of big intelligent drop hammer type vibrator vehicle of shockproofness for oil exploration | |
| CN102929132B (en) | Based on the vibration noncontact Active Control Method of multi-disc combination drive configuration | |
| CN101738300B (en) | Device for generating sine wave electromagnetic force | |
| Abdullah et al. | Energy harvesting and regeneration from the vibration of suspension System | |
| CN102195133B (en) | Radar antenna pitching pushing mechanism based on ball screw and double push rod structure | |
| Gu et al. | Nanoscale motion control with a compact minimum-actuator magnetic levitator | |
| CN208060117U (en) | Three Degree Of Freedom vibration test platform | |
| CN202288731U (en) | Calibration test device for performances of rehabilitation training robot | |
| CN107097599A (en) | A kind of air-ground amphibious robot | |
| CN207869012U (en) | A kind of oscillator movable type high thrust linear piezoelectric motor | |
| CN205280090U (en) | Secondary power supply subassembly is used to organize by optic fibre with vibration damper | |
| Li et al. | Design and analysis of a semi-circular flexible hexapod robot miniRHex |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |