CN107356389A - A kind of shake table synchronisation control means and shake table synchronous control system - Google Patents
A kind of shake table synchronisation control means and shake table synchronous control system Download PDFInfo
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- CN107356389A CN107356389A CN201710637252.9A CN201710637252A CN107356389A CN 107356389 A CN107356389 A CN 107356389A CN 201710637252 A CN201710637252 A CN 201710637252A CN 107356389 A CN107356389 A CN 107356389A
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- phase
- shake table
- drive signal
- vibration
- signal
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
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- General Physics & Mathematics (AREA)
- Particle Accelerators (AREA)
- Vibration Prevention Devices (AREA)
Abstract
A kind of the shake table synchronisation control means and synchronous control system of the present invention, described synchronisation control means calculate the phase difference of multiple shake tables vibrations specifically, gather the vibration signal of multiple shake tables；Amount of delay is applied to drive signal with the phase difference calculated, phase delay compensation is carried out to drive signal；The drive signal compensated by phase delay is sent to power amplifier, makes each shake table vibration phase synchronous.A kind of shake table synchronisation control means and shake table synchronous control system described herein, phase compensation is carried out to vibration signal, the drive signal compensated by phase delay is sent to power amplifier, makes each shake table vibration phase synchronous.
Description
Technical field
The present invention relates to a kind of shake table synchronisation control means and shake table synchronous control system.
Background technology
At present, multiple shake table and testing stand parallel connections are rigidly connected, to equipment under test carry out vibration-testing when, it is necessary to protect
Demonstrate,prove the acceleration and Phase synchronization of testboard table vibration.But in the prior art, can only ensure each shake table frequency and
Amplitude it is consistent, it is impossible to adjust the phase of each shake table.
The content of the invention
In order to solve the above technical problems, it is an object of the invention to provide.
A kind of shake table synchronisation control means of the present invention, described synchronisation control means is specifically, gather multiple vibrations
The vibration signal of platform, calculate the phase difference of multiple shake table vibrations；Amount of delay is applied to drive signal with the phase difference calculated,
Phase delay compensation is carried out to drive signal；The drive signal compensated by phase delay is sent to power amplifier, makes respectively to shake
Dynamic platform vibration phase is synchronous.
Preferably, the vibration signal of multiple shake tables is gathered respectively using multiple sensors, and by the vibration of each vibrator
Signal is sent to phase compensator, and the phase difference of each vibration signal is calculated using phase compensator, and described phase compensator leads to
Cross the phase difference calculated and amount of delay is applied to drive signal, phase delay compensation is carried out to drive signal.
Preferably, the vibration signal gathered is sent to controller by each described sensor, described controller according to
Frequency and amplitude the adjustment drive signal of vibration signal, and drive signal is sent to described phase compensator, drive signal
Compensate, and sent to power amplifier by the phase delay of phase compensator, make each shake table vibration frequency, amplitude and phase
Unanimously.
Preferably, the vibration signal of each described sensor collection carries out analog-to-digital conversion by ad/da converter, is converted into
Being sent after data signal to controller, the drive signal after controller is handled carries out digital-to-analogue conversion by ad/da converter,
Sent after being converted to analog signal to phase compensator.
The application also disclosed a kind of shake table synchronous control system, and described synchronous control system includes, and at least two
Shake table, at least two sensors of vibration signal for gathering each shake table respectively, phase compensator, for respectively to each
The drive signal of shake table carries out the power amplifier of power amplification, and described phase compensator is used for the phase for calculating each shake table
Potential difference, and the phase difference by calculating applies amount of delay to drive signal, and phase delay compensation is carried out to drive signal, and will
The drive signal compensated by phase delay is sent to power amplifier, makes each shake table vibration phase synchronous.
Preferably, described synchronous control system also includes a controller, and described controller is used to gather each sensor
Vibration signal, drive signal is adjusted according to the frequency of vibration signal and amplitude, and send to described phase compensator, made each
Shake table vibration frequency, amplitude are consistent.
Preferably, described synchronous control system also includes ad/da converter, and described ad/da converter is used for will be each
Sensor vibration signal carries out analog-to-digital conversion, and transmission to controller, described ad/da converter is also used after being converted into data signal
In the drive signal after controller is handled is carried out into digital-to-analogue conversion, sent after being converted to analog signal to phase compensator.
By such scheme, the present invention at least has advantages below：
A kind of shake table synchronisation control means and shake table synchronous control system described herein, vibration signal is carried out
Phase compensation, the drive signal compensated by phase delay are sent to power amplifier, make each shake table vibration phase synchronous.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is a kind of structural representation of shake table synchronous control system,
Wherein：1st, shake table；2nd, sensor；3rd, power amplifier；4th, phase compensator；5th, ad/da converter；6th, control
Device.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described in further detail.Implement below
Example is used to illustrate the present invention, but is not limited to the scope of the present invention.
As shown in figure 1, be a kind of schematic diagram of a kind of embodiment of the synchronous control system of shake table 1 described herein,
In the present embodiment, the synchronous control system of shake table 1 includes two shake tables 1, gathers the vibration signal of two shake tables 1 respectively
Two sensors 2, the vibration signal that sensor 2 is gathered is sent to phase compensator 4, and phase compensator 4 calculates each vibration
The phase difference of platform 1, and the phase difference by calculating applies amount of delay to drive signal, and phase delay benefit is carried out to drive signal
Repay, and the drive signal by phase delay compensation is sent to two power amplifiers 3, two power amplifiers 3 and driven respectively
Moving two shake tables 1 makes the vibration phase of two vibrators synchronous.The synchronous control system of shake table 1 also includes controller 6 and AD/
D/A converter 5, the vibration signal that sensor 2 is gathered are sent to controller 6, control by ad/da converter 5 into data signal
Device 6 adjusts the frequency and amplitude of drive signal, carries out digital-to-analogue conversion by ad/da converter 5, is sent after being converted to analog signal
To phase compensator 4, make two vibration frequencies of shake table 1, amplitudes consistent with phase.
The synchronous control system of shake table 1 described herein can also include multiple shake tables 1 and sensor 2 and power is put
Big device 3, adjusts quantity according to the actual requirements.A kind of synchronisation control means of shake table 1 and shake table 1 described herein are synchronous to be controlled
System processed, phase compensation is carried out to vibration signal, the drive signal compensated by phase delay is sent to power amplifier 3, is made
Each vibration phase of shake table 1 is synchronous.
Described above is only the preferred embodiment of the present invention, is not intended to limit the invention, it is noted that for this skill
For the those of ordinary skill in art field, without departing from the technical principles of the invention, can also make it is some improvement and
Modification, these improvement and modification also should be regarded as protection scope of the present invention.
Claims (7)
- A kind of 1. shake table synchronisation control means, it is characterised in that：Described synchronisation control means is specifically, gather multiple vibrations The vibration signal of platform, calculate the phase difference of multiple shake table vibrations；Amount of delay is applied to drive signal with the phase difference calculated, Phase delay compensation is carried out to drive signal；The drive signal compensated by phase delay is sent to power amplifier, makes respectively to shake Dynamic platform vibration phase is synchronous.
- A kind of 2. shake table synchronisation control means according to claim 1, it is characterised in that：Distinguished using multiple sensors The vibration signal of multiple shake tables is gathered, and the vibration signal of each vibrator is sent to phase compensator, uses phase compensation Device calculates the phase difference of each vibration signal, and described phase compensator is applied by the phase difference calculated to drive signal to be delayed Amount, phase delay compensation is carried out to drive signal.
- A kind of 3. shake table synchronisation control means according to claim 2, it is characterised in that：Each described sensor is by institute The vibration signal of collection is sent to controller, and described controller adjusts drive signal according to the frequency and amplitude of vibration signal, And drive signal is sent to described phase compensator, drive signal and compensated by the phase delay of phase compensator, concurrently Power amplifier is delivered to, makes each shake table vibration frequency, amplitude consistent with phase.
- A kind of 4. shake table synchronisation control means according to claim 3, it is characterised in that：Each described sensor collection Vibration signal analog-to-digital conversion is carried out by ad/da converter, be converted into sending to controller after data signal, by controller Drive signal after processing carries out digital-to-analogue conversion by ad/da converter, is sent after being converted to analog signal to phase compensator.
- A kind of 5. shake table synchronous control system, it is characterised in that：Described synchronous control system includes, at least two vibrations Platform, at least two sensors of vibration signal for gathering each shake table respectively, phase compensator, for respectively to each vibration The drive signal of platform carries out the power amplifier of power amplification,Described phase compensator is used for the phase difference for calculating each shake table, and the phase difference by calculating is applied to drive signal Add amount of delay, phase delay compensation is carried out to drive signal, and the drive signal by phase delay compensation is sent to power Amplifier, make each shake table vibration phase synchronous.
- 6. shake table synchronous control system according to claim 5, it is characterised in that：Described synchronous control system also wraps A controller is included, described controller is used for the vibration signal for gathering each sensor, adjusted according to the frequency of vibration signal and amplitude Whole drive signal, and send to described phase compensator, make each shake table vibration frequency, amplitude consistent.
- 7. shake table synchronous control system according to claim 6, it is characterised in that：Described synchronous control system also wraps Ad/da converter is included, described ad/da converter is used to each sensor vibration signal carrying out analog-to-digital conversion, is converted into numeral Sent after signal to controller, described ad/da converter is additionally operable to the drive signal after controller is handled entering line number Mould is changed, and is sent after being converted to analog signal to phase compensator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637252.9A CN107356389A (en) | 2017-07-31 | 2017-07-31 | A kind of shake table synchronisation control means and shake table synchronous control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710637252.9A CN107356389A (en) | 2017-07-31 | 2017-07-31 | A kind of shake table synchronisation control means and shake table synchronous control system |
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| CN107356389A true CN107356389A (en) | 2017-11-17 |
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| CN201710637252.9A Pending CN107356389A (en) | 2017-07-31 | 2017-07-31 | A kind of shake table synchronisation control means and shake table synchronous control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254145A (en) * | 2017-12-29 | 2018-07-06 | 苏州东菱智能减振降噪技术有限公司 | A kind of control method for realizing multi shaker synchronous vibration |
| CN111174899A (en) * | 2019-11-27 | 2020-05-19 | 中国船舶重工集团有限公司第七一0研究所 | Device and method for testing underwater mine self-guide head acoustic receiving system in air |
| CN111975976A (en) * | 2020-08-17 | 2020-11-24 | 太原理工大学 | Method for synchronously controlling vibration forming acceleration of ballastless track slab |
| CN114510141A (en) * | 2020-10-26 | 2022-05-17 | 北京小米移动软件有限公司 | Vibration control method, mobile terminal and storage medium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490592A (en) * | 2016-01-07 | 2016-04-13 | 瑞声光电科技(常州)有限公司 | Phase synchronization control system and control method for linear motors |
-
2017
- 2017-07-31 CN CN201710637252.9A patent/CN107356389A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490592A (en) * | 2016-01-07 | 2016-04-13 | 瑞声光电科技(常州)有限公司 | Phase synchronization control system and control method for linear motors |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108254145A (en) * | 2017-12-29 | 2018-07-06 | 苏州东菱智能减振降噪技术有限公司 | A kind of control method for realizing multi shaker synchronous vibration |
| CN108254145B (en) * | 2017-12-29 | 2020-06-26 | 苏州东菱智能减振降噪技术有限公司 | Control method for realizing synchronous vibration of multiple vibration tables |
| CN111174899A (en) * | 2019-11-27 | 2020-05-19 | 中国船舶重工集团有限公司第七一0研究所 | Device and method for testing underwater mine self-guide head acoustic receiving system in air |
| CN111174899B (en) * | 2019-11-27 | 2022-06-07 | 中国船舶重工集团有限公司第七一0研究所 | Device and method for testing underwater mine self-guide head acoustic receiving system in air |
| CN111975976A (en) * | 2020-08-17 | 2020-11-24 | 太原理工大学 | Method for synchronously controlling vibration forming acceleration of ballastless track slab |
| CN111975976B (en) * | 2020-08-17 | 2021-05-11 | 太原理工大学 | Method for synchronously controlling vibration forming acceleration of ballastless track slab |
| CN114510141A (en) * | 2020-10-26 | 2022-05-17 | 北京小米移动软件有限公司 | Vibration control method, mobile terminal and storage medium |
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Application publication date: 20171117 |
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