CN104266750B - Measurement method for transverse vibration measurement system of axial movement rope - Google Patents
Measurement method for transverse vibration measurement system of axial movement rope Download PDFInfo
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- CN104266750B CN104266750B CN201410577429.7A CN201410577429A CN104266750B CN 104266750 B CN104266750 B CN 104266750B CN 201410577429 A CN201410577429 A CN 201410577429A CN 104266750 B CN104266750 B CN 104266750B
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- rope
- straight line
- cotton rope
- motor
- guide rail
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Abstract
The invention discloses a measurement method for a transverse vibration measurement system of an axial movement rope. A middle cord of the system is arranged on a wheel train; a tensioning wheel, a left-end guide wheel, a right-end guide wheel and a reel are arranged on the wheel train along the moving of the cord from the end where an automatic take-up device is arranged in sequence; the two ends of the cord are respectively connected with the take-up device and the reel; the right-end guide wheel and a synchronous motor are fixedly arranged on a mobile platform of a first linear motor; the mobile platform of the first linear motor is supported on a first linear guiderail; the first linear guiderail is fixedly arranged on a rack platform in the movement direction of the cord; a second linear guiderail which is parallel to the first linear guiderail is fixedly arranged right above the cord; a second linear motor is supported on the second linear guiderail; a cross beam is fixedly arranged at the bottom of the second linear motor; displacement sensors are alternately arranged at the bottom of the cross beam. The system is used for the transverse vibration measurement of the axial movement rope, can be used for verifying the result of numerical calculation and can be used as a platform for professional courses teaching and scientific researches.
Description
The application is to be on January 25th, 2013 applying date, Application No. 2013100298374, invention entitled axially shifting
Running rope oscillation crosswise measuring system and its divisional application of application.
Technical field
The present invention relates to a kind of survey for measurement axial movement rope oscillation crosswise under given translational speed and tension force
The measuring method that trial assembly is put.It is more particularly to one kind axial movement rope lateral displacement vibration under given initial displacement contactless
The test experiments platform of measurement and pilot system.
Background technology
Axially rope shifting system is a type of axially moving materials, has many applications, such as cable car cableway, rope in engineering
It is satellite, rope yarn, dynamic conveyor belt, tape, paper tape etc..Axially rope shifting system mechanical simplified model presses long change of rope rule substantially
It is divided into two classes.One class is that the fixed length rope shown in Fig. 2 a moves system, and survey region length is constant, and rope has translational speed, in research
There is rope that is newly-increased and disappearing at region two ends.Application example has conveyer belt, cable car cableway and powerdriven belt etc..Another kind of it is
Survey region length change shown in Fig. 2 b and Fig. 2 c, has rope that is newly-increased or disappearing, at one end including the rope of elongation Fig. 2 b Suo Shi
The rope of the shortening shown in shifting system and Fig. 2 c moves system.Application example has the cable wire of elevator, and the rise and fall of lift heavy thing lifted by crane,
Rope system when the primary release of Tethered Systems or recovery component etc..In Fig. 2 a, Fig. 2 b and Fig. 2 c, study such system
Vibratory response and vibration characteristics have important using value for the vibration of engineering system and stability control.
Because the movement of rope system, time dependent coefficient entry occurs in equation, defines parametric excitation, the type
Vibrate for parametric vibration it is impossible to the method for enough traditional linear systems obtains its Theory Solution.Researcher has been proposed that at present
Multiple numerical computation methods are solving the vibration problem of mobile rope it is still necessary to a kind of experimental provision carrys out check algorithm.This experiment
Device needs to meet the three kinds of systems that can simulate Fig. 2, and that is, measured length rope moves system and becomes length rope shifting system；Rope can be given move
Speed, direction and rope tension force, the material parameter of rope can be changed, such as density, elastic modelling quantity etc.；Can be specific to rope system
Excitation, such as initial displacement excitation, pulse excitation etc.；Can lateral displacement when mobile for multiple particles and rope on tracking measurement rope
During shifting, the lateral displacement of multiple specified points fastened by rope length direction fixed coordinates.But there is no the experimental provision of correlation so far
Open report, does not have a kind of mobile rope vibration testing device that can provide multiple operating modes and measuring table for check number yet
The result of calculation of value-based algorithm.
Content of the invention
The present invention is for avoiding the weak point existing for above-mentioned prior art, providing a kind of axial movement rope oscillation crosswise
The measuring method of measuring system, to the lateral displacement under obtaining various operating modes and its corresponding to, for verifying numerical computation method
Result, thus being further used for the control of mobile rope vibration；Can be used for as College Specialized Course Education and scientific research
Experiment porch.
The present invention is to solve technical problem to adopt the following technical scheme that
Present invention axial movement rope being structurally characterized in that of oscillation crosswise measuring system:
Setting train, cotton rope is arranged on described wheel and fastens, described train press the trend of cotton rope from spooler at one end according to
Secondary be set to tensioning wheel, left end guide wheel, right-hand member guide wheel and reel, the two ends of cotton rope are connected on spooler and reel；Institute
Stating spooler is to provide cotton rope to reclaim power with helical spring；Described reel is by synchronous machine drives；On described cotton rope, it is in just
Shift scale is arranged on the center of beginning rope length；
Described spooler and left end guide wheel are fixedly installed on framework platform, and described right-hand member guide wheel and synchronous motor fixation set
Put on the mobile platform of first straight line motor；Described tensioning wheel is arranged on adjustable moving slide block, slides in described adjustable moving
The weight beam of the tensioning dynamics for detecting tensioning wheel is set with block；
The mobile platform of described first straight line motor is bearing on first straight line guide rail, and can be in described first straight line guide rail
On with set speed and direction rectilinear movement；Described first straight line guide rail moves direction along rope and is fixedly installed on framework platform；
Coordinate axess are set in the lower section of cotton rope, along cotton rope moving direction, described coordinate axess are fixedly installed on and described frame
On the base plate of platform consolidation, the starting point of described coordinate axess is the starting point in left end guide wheel for the cotton rope；
Setting sensor-based system is: being parallel to each other with first straight line guide rail in the surface of described cotton rope, it is straight to be fixedly installed second
Line guide rail, second straight line motor support is on described second straight line guide rail, and can move on described second straight line guide rail,
The bottom of described second straight line motor is fixedly installed crossbeam, and non-contact displacement transducer is disposed on the bottom of described crossbeam
Portion.
The application of present invention axial movement rope oscillation crosswise measuring system is:
Second straight line motor and synchronous motor remain stationary as, and first straight line motor, with setting speed shift to right or left, non-connects
The position of touch displacement transducer is fixed, and to one initial excitation of cotton rope, non-contact displacement transducer measurement cotton rope is with difference
The lateral displacement of the point on coordinate axess ad-hoc location when speed elongates or shortens, under the conditions of verifying given initial excitation,
Become the accuracy of length portable cord rope numerical solution algorithm of specified point oscillation crosswise model on coordinate axess.
Compared with the prior art, the present invention has the beneficial effect that:
1st, the lateral displacement under the present invention is obtained in that various operating modes and its corresponds to, for verifying the knot of numerical computation method
Really, thus being further used for the control of mobile rope vibration；Can be used for the experiment as College Specialized Course Education and scientific research
Platform；
2nd, the present invention passes through linear electric motors and synchronous motor arrangement spatially and passes through button and Single-chip Controlling
The start and stop of each motor are combined and to be switched the mobile rope of measured length, to become the mobile rope of length and these three experiment models of static line, structure letter
Single and integrated level is high；
3rd, existing technology displacement transducer is fixing and to restrict be mobile, can only be to axial fixed coordinates axle specified location
The measurement of point, and can not be to the tracking measurement of transfer point.And apparatus of the present invention are except enabling prior art to fixed position point
Measurement outside, by controlling first straight line motor and the motion of second straight line motor in synchrony and controlling second straight line motor and synchronization
Being synchronized with the movement of motor also enables displacement transducer to the tracking measurement specifying particle on mobile rope.And move the upper specified point of rope
Tracking measurement for research conveyer belt on object vibration, hawser elevator cab vibration etc. engineering problem there is practical significance；
4th, apparatus of the present invention are provided with the shift scale of measurement initial position and opening of measurement rope tension on mobile rope
Roller unit, so that experiment parameter (initial displacement, tension force) is measurable and controllable, enriches the operating mode of experiment, is also able to verify that many
Plant numerical result under operating mode；
5 apparatus of the present invention are synchronized with the movement to measure the displacement of transfer point using noncontacting proximity sensor, it is to avoid to tested
The additional interference of point.Existing technology or adopt touch sensor, can bring additional interference；Or adopt noncontact
Formula sensor, but sensor fixed installation is it is impossible to particle is moved in measurement.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 a moves system schematic for fixed length rope；
Fig. 2 b is that the rope of elongation moves system schematic；
Fig. 2 c is that the rope shortening moves system schematic；
In figure label: 1 cotton rope, 2 left end guide wheels, 3 tensioning wheels, 4 weight beams, 5 adjustable moving slide blocks, 6 spoolers, 7
Shift scale, 8 first straight line guide rails, 9 right-hand member guide wheels, 10 first straight line motors, 11 base plates, 12 synchronous motors, 13 reels, 14
Two line slideways, 15 Motor drives and single chip control unit, 16 control panel for motors, 17 left sliders, 18 computers, 19 vibrations
Signal collection modulation system, 20 second straight line motors, 21 right slide blocks, 22 crossbeams, 23 non-contact displacement transducers.
Specific embodiment
Referring to Fig. 1, in the present embodiment, the version of axial movement rope oscillation crosswise measuring system is:
Setting train, cotton rope 1 is arranged on wheel and fastens, and train is set gradually from spooler 6 at one end by the trend of cotton rope 1
For tensioning wheel 3, left end guide wheel 2, right-hand member guide wheel 9 and reel 13, the two ends of cotton rope 1 are connected on spooler 6 and reel 13；
Spooler 6 is to provide cotton rope to reclaim power with helical spring；Reel 13 is driven by synchronous motor 12；On cotton rope 1, it is in initial rope
Shift scale 7 is arranged on long center；Shift scale 7 is arranged in the center of initial rope length, when cotton rope oscillation crosswise
Initial condition when being given cotton rope central point displacement, the displacement of this point can be measured, for numerical computations.
Spooler 6 and left end guide wheel 2 are fixedly installed on framework platform, and right-hand member guide wheel 9 and synchronous motor 12 are fixedly installed
On the mobile platform of first straight line motor 10；Tensioning wheel 3 is arranged on adjustable moving slide block 5, covers on adjustable moving slide block 5
Weight beam 4 equipped with the tensioning dynamics for detecting tensioning wheel 3；
The mobile platform of first straight line motor 10 is bearing on first straight line guide rail 8, and can on first straight line guide rail 8 with
The speed setting and direction rectilinear movement；First straight line guide rail 8 moves direction along rope and is fixedly installed on framework platform；
Coordinate axess are set in the lower section of cotton rope 1, along cotton rope moving direction, coordinate axess are fixedly installed on and framework platform consolidation
Base plate 11 on, the starting point of coordinate axess is the starting point in left end guide wheel for the cotton rope；
Setting sensor-based system is: is parallel to each other with first straight line guide rail 8 in the surface of cotton rope and second straight line is fixedly installed
Guide rail 14, second straight line motor 20 is supported on second straight line guide rail 20, and can move on second straight line guide rail 14,
The bottom of two linear electric motors 20 is fixedly installed crossbeam 22, and non-contact displacement transducer 23 is disposed on the bottom of crossbeam 22.
In order to improve the rigidity of crossbeam 22, it is to avoid crossbeam 22 produces vibration when mobile and increases measurement error, in second straight line guide rail 14
On, it is respectively provided with left slider 17 and right slide block 21 positioned at two left sides of second straight line motor 20, crossbeam 22 is fixedly installed on simultaneously
On two linear electric motors 20, left slider 17 and right slide block 21.
In the present embodiment, non-contact displacement transducer 23 adopts laser or eddy current sensor, and contactless displacement passes
Sensor 23 can be arranged as required to several, and location arrangements as required on crossbeam 22, that is, are located at the surface of cotton rope 1.
Each sensor can measure on cotton rope immediately below it particle in the displacement of vertical direction.Non-contact displacement transducer 23 measures
Data be acquired and nurse one's health by vibration signals collecting conditioning system 19, and store on computer 18.Synchronous motor 12,
The start and stop of first straight line motor 10 and second straight line motor 20, speed and direction are driven by Motor drive and control unit 15
Move and control, thus simulating multiple mobile rope operating modes, meeting the demand of various experimental programs, and motor control is passed through by experimenter
Panel 16 processed is controlling.
The application of present invention axial movement rope oscillation crosswise measuring system is:
Measuring method one:
Synchronous motor 12 remains stationary as, second straight line motor 20 and first straight line motor 10 synchronously moved to right with given speed or
Move to left, to cotton rope one initial excitation, non-contact displacement transducer 23 tracking measurement cotton rope when cotton rope 1 elongates or shortens refers to
Determine lateral displacement when mobile for the particle, for verifying under given initial excitation, become particle oscillation crosswise on length portable cord rope
The accuracy of the numerical solution algorithm of model；
Measuring method two,
First straight line motor 10 remains stationary as, and second straight line motor 20 and synchronous motor 12 make contactless displacement sense
Device 23 and cotton rope 1 are synchronously moved to left with setting speed or move to right, and the cotton rope length between left end guide wheel 2 and right-hand member guide wheel 9 is to fix
Value, on cotton rope, particle is mobile status, to one initial excitation of cotton rope, fixed by non-contact displacement transducer 23 tracking measurement
Lateral displacement when mobile for the particle is specified on length cotton rope, under the conditions of the given initial excitation of checking, on the mobile cotton rope of measured length
The accuracy of the numerical solution algorithm of particle oscillation crosswise model；
Measuring method three:
Second straight line motor 20 and synchronous motor 12 remain stationary as, and first straight line motor 10 is moved to right with setting speed or left
Move, the position of non-contact displacement transducer 23 is fixed, and to one initial excitation of cotton rope, non-contact displacement transducer 23 measures
The lateral displacement of the point on coordinate axess ad-hoc location when cotton rope is elongated or shortened with friction speed, initially swashs for verifying to give
Under the conditions of encouraging, become the accuracy of length portable cord rope numerical solution algorithm of specified point oscillation crosswise model on coordinate axess；
Measuring method four:
First straight line motor 10 and second straight line motor 20 remain stationary as, and synchronous motor 12 is clockwise or inverse with setting speed
Hour hands rotate, and length between left end guide wheel 2 and right-hand member guide wheel 9 for the cotton rope 1 is fixed, and with setting speed shift to right or left, non-
The position of tangent displacement sensor 23 is fixed, and to one initial excitation of cotton rope, it is fixed to be measured by non-contact displacement transducer 23
The lateral displacement of the point on coordinate axess ad-hoc location when length cotton rope is moved to left or moved to right with friction speed, given first for verifying
Begin under the conditions of excitation, the mobile cotton rope of measured length on coordinate axess the numerical solution algorithm of specified point oscillation crosswise model accurate
Property；
Measuring method five
First straight line motor 10 and second straight line motor 20 and synchronous motor 12 all remain stationary as, cotton rope 1 and noncontact
Formula displacement transducer 23 is fixation, to one initial excitation of cotton rope, measures two ends by non-contact displacement transducer 23 and fixes
The lateral displacement of given particle on cotton rope.Under the conditions of verifying given initial excitation, the fixing cotton rope in two ends is special on coordinate axess
The accuracy of the numerical solution algorithm of fixed point oscillation crosswise model.
Present invention initial excitation mode in use is that the particle to initial rope length midpoint gives one specifically just
Beginning lateral displacement, displacement is obtained by shift scale 7.By changing the material of rope, such as steel band, nylon, strap, belt
Deng different vibration characteristics can be obtained.
Claims (1)
1. a kind of measuring method of axial movement rope oscillation crosswise measuring system, described axial movement rope oscillation crosswise measuring system
Structure setting be:
Setting train, cotton rope (1) is arranged on described wheel and fastens, and described train presses the trend of cotton rope (1) from spooler (6) place one
End sets gradually as tensioning wheel (3), left end guide wheel (2), right-hand member guide wheel (9) and reel (13), and the two ends of cotton rope (1) connect respectively
On spooler (6) and reel (13)；Described spooler (6) is to provide cotton rope to reclaim power with helical spring；Described reel (13)
Driven by synchronous motor (12)；On described cotton rope (1), it is in setting shift scale (7) on the center of initial rope length；
Described spooler (6) and left end guide wheel (2) are fixedly installed on framework platform, described right-hand member guide wheel (9) and synchronous motor
(12) it is fixedly installed on the mobile platform of first straight line motor (10)；Described tensioning wheel (3) is arranged on adjustable moving slide block (5)
On, the weight beam (4) of the tensioning dynamics for detecting tensioning wheel (3) is set with described adjustable moving slide block (5)；
The mobile platform of described first straight line motor (10) is bearing on first straight line guide rail (8), and can be in described first straight line
Moved linearly with the speed setting and direction on guide rail (8)；Described first straight line guide rail (8) is moved direction along rope and is fixedly installed on machine
On body panel；
Coordinate axess are set in the lower section of cotton rope (1), along cotton rope moving direction, described coordinate axess are fixedly installed on is put down with described frame
On the base plate (11) of platform consolidation, the starting point of described coordinate axess is the starting point in left end guide wheel for the cotton rope；
Setting sensor-based system is: being parallel to each other with first straight line guide rail (8) in the surface of described cotton rope, it is straight to be fixedly installed second
Line guide rail (14), second straight line motor (20) is supported on described second straight line guide rail (14), and can be in described second straight line
Guide rail (14) is upper to be moved, and crossbeam (22) is fixedly installed in the bottom of described second straight line motor (20), contactless displacement senses
Device (23) is disposed on the bottom of described crossbeam (22)；
It is characterized in that: the measuring method of described axial movement rope oscillation crosswise measuring system is:
Second straight line motor (20) and synchronous motor (12) remain stationary as, and first straight line motor (10) is moved to right with setting speed or left
Move, the position of non-contact displacement transducer (23) is fixed, to one initial excitation of cotton rope, non-contact displacement transducer (23)
The lateral displacement of the point on coordinate axess ad-hoc location when measurement cotton rope is elongated or shortened with friction speed, given first for verifying
Begin excitation under the conditions of, become length portable cord rope on coordinate axess the numerical solution algorithm of specified point oscillation crosswise model accurate
Property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577429.7A CN104266750B (en) | 2013-01-25 | 2013-01-25 | Measurement method for transverse vibration measurement system of axial movement rope |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410577429.7A CN104266750B (en) | 2013-01-25 | 2013-01-25 | Measurement method for transverse vibration measurement system of axial movement rope |
| CN201310029837.4A CN103105228B (en) | 2013-01-25 | 2013-01-25 | Axially moving rope transverse vibration measuring system and application thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310029837.4A Division CN103105228B (en) | 2013-01-25 | 2013-01-25 | Axially moving rope transverse vibration measuring system and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104266750A CN104266750A (en) | 2015-01-07 |
| CN104266750B true CN104266750B (en) | 2017-02-01 |
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| CN201410577429.7A Expired - Fee Related CN104266750B (en) | 2013-01-25 | 2013-01-25 | Measurement method for transverse vibration measurement system of axial movement rope |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU465591A1 (en) * | 1973-01-04 | 1975-03-30 | Каунасский Политехнический Институт | Device for measuring transverse vibrations of a power tape |
| CN1336259A (en) * | 2000-08-07 | 2002-02-20 | 株式会社日立制作所 | Rolling equipment having belt shape testing device, belt shape testing method and rolling method |
| CN101750179A (en) * | 2008-12-12 | 2010-06-23 | 上海电机学院 | Tension detecting method and device of cloth |
| CN101918787A (en) * | 2007-12-17 | 2010-12-15 | 明产株式会社 | Seat sag evaluation method and device |
-
2013
- 2013-01-25 CN CN201410577429.7A patent/CN104266750B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU465591A1 (en) * | 1973-01-04 | 1975-03-30 | Каунасский Политехнический Институт | Device for measuring transverse vibrations of a power tape |
| CN1336259A (en) * | 2000-08-07 | 2002-02-20 | 株式会社日立制作所 | Rolling equipment having belt shape testing device, belt shape testing method and rolling method |
| CN101918787A (en) * | 2007-12-17 | 2010-12-15 | 明产株式会社 | Seat sag evaluation method and device |
| CN101750179A (en) * | 2008-12-12 | 2010-06-23 | 上海电机学院 | Tension detecting method and device of cloth |
Non-Patent Citations (1)
| Title |
|---|
| 粘弹性传动带非线性振动实验研究;张红星 等;《动力学与控制学报》;20071231;第5卷(第4期);361-364 * |
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