CN208921385U - Real-time mixed test system - Google Patents
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- CN208921385U CN208921385U CN201821181011.4U CN201821181011U CN208921385U CN 208921385 U CN208921385 U CN 208921385U CN 201821181011 U CN201821181011 U CN 201821181011U CN 208921385 U CN208921385 U CN 208921385U
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Abstract
The utility model discloses a kind of real-time mixed test systems, including mix-loaded counterforce device, sensor, data acquisition module, power amplifier, actuator drive module, actuator, data communication module, constant voltage source module, slave computer and host computer, wherein, host computer is connected using data line with slave computer by serial ports, it is all made of data line between slave computer and sensor and power amplifier to be connected, conducting wire is respectively adopted between power amplifier and actuator drive module and actuator and is connected.The real-time mixed test system of the utility model has the characteristics that smaller, the test accuracy original text of test land occupation, easily controllable.
Description
Technical field
The utility model belongs to Construction Anti-earthquake test field more particularly to a kind of real-time mixed test system.
Background technique
Traditional earthquake-resistant structure test method creates repetition loading method from pseudo-static experimental, develops to pseudo
The shaking-table test method of comparative maturity by now again.Although earthquake simulation shaking table is the most frequently used at this stage most can
Reflect manual simulation's means of structure truth under geological process, but majority can only all carry out scale (model) test.So
And modern building fabric development trend is enlargement, complicates, and the test result that scaled model obtains is unable to entirely accurate
It calculates in actual experimental structure.And shake table and corollary equipment price and design-build somewhat expensive, cause shake table to try
Test costly, test process complexity.
Bulk testing is that the non-linear relatively strong or stress complex component for being not easy numerical simulation in structure is sub as test
Structure, the part of other easy simulations by host computer and actuator slave computer connection communication and are calculated as numerical value minor structure,
Realize dynamic response analysis of the full structure under geological process.
And existing bulk testing is all based on large-scale Hydrauservo System, scale, experimental facilities energy to laboratory
The outfit requirement of power, the number of units of host computer and performance and various aspects personnel amount is all very high, and whole system builds complexity, examination
It is high to test expense, hardly results in and really promotes and apply.
Therefore, reduce experimentation cost, reduce bulk testing research threshold, allow combined experiments platform really promoted and
Using as the matter of great urgency.
Utility model content
In view of the above technical problems, the utility model provides a kind of real-time mixed test system, the real-time bulk testing system
The features such as system has test land occupation smaller, builds simply, cheap, test process expense is low and easily controllable, and to upper
The outfit of the number of units and performance and testing crew quantity of position machine requires to be greatly lowered, and enables real-time mixed test system
It widely promotes and applies, considerably reduce the threshold of bulk testing research.And the peace of the real-time mixed test system
Dress and work adjusting method have the features such as easy to operate, adjustability is good, and degree of regulation is high.
In order to achieve the above technical purposes, the utility model uses following specific technical solution:
A kind of real-time mixed test system, including mix-loaded counterforce device, sensor, data acquisition module, power are put
Big device, actuator drive module, actuator, data communication module, constant voltage source module, slave computer and host computer, wherein upper
Machine is connected by data communication module with slave computer, and data line is all made of between slave computer and sensor and power amplifier
It is connected, between power amplifier and actuator drive module, conducting wire is respectively adopted between power amplifier and actuator is connected；
Constant voltage source module be it is multiple, multiple constant voltage source modules are respectively with slave computer, sensor using the corresponding phase of conducting wire
Even；
The sensor includes displacement sensor and force snesor, wherein force snesor for will test minor structure by
Loading force Real-time Feedback to data acquisition module；Displacement sensor is used to test the displacement Real-time Feedback of minor structure generation
To data acquisition module；
Force signal and displacement signal are transferred to slave computer by the data acquisition module, and slave computer passes through data communication mould again
Block is transferred to host computer；
The mix-loaded counterforce device includes: bottom steel base seat, steel reaction frame, actuator support platform and actuator
Mounting base, wherein steel reaction frame is connected at the upper side of the steel base seat of bottom, connection actuator support in the other side above the steel base seat of bottom
Platform is hingedly connected with actuator in actuator mounting base；
Minor structure is tested in setting between steel reaction frame and actuator, and side and the examination of actuator are closed on the steel reaction frame
Minor structure one end power transmission connection is tested, the driving part for testing the minor structure other end and actuator is rigidly connected；
The straight line between steel reaction frame and actuator is realized by first position regulating mechanism in the bottom of the steel reaction frame
The coarse adjustment of spacing；
It is equipped with second position regulating mechanism between the steel reaction frame and test minor structure, passes through second position regulating mechanism
Realize fine-tuning for the straight line spacing between steel reaction frame and actuator.
The first position regulating mechanism includes adjusting steel plate, adjusts the bottom that Interal fixation is connected to steel reaction frame, is adjusted
It saves bolt assembled between steel plate and bottom steel base seat to connect, the power transmission direction uniform intervals adjusted on steel plate along actuator
Arrange multiple bolt connecting holes；Realize that steel is anti-by adjusting adjusting bolt hole corresponding position between steel reaction frame and bottom steel base seat
The coarse adjustment of straight line spacing between power frame and actuator.
The first position regulating mechanism includes sliding block, and the sliding block is fixedly connected on the bottom of steel reaction frame, the bottom
It is equipped with elongated slot along actuator power transmission direction in portion's steel base seat, the bottom of steel reaction frame passes through sliding block company of sliding in the elongated slot
It connects, to adjust the straight line spacing between steel reaction frame and actuator, and is locked by locking system.
The second position regulating mechanism includes counter-force threaded rod, and the counter-force threaded rod is set to steel reaction frame and test
Between minor structure, between adjusting between steel reaction frame and counter-force threaded rod many threads realization steel reaction frame and test minor structure
Away from fine-tune.
Along several bolts hole of the power transmission vertical direction uniform intervals of actuator, the work in the actuator support platform
Level tune is carried out by bolt hole between dynamic device mounting base and actuator support platform, guarantees actuator and test minor structure essence
Quasi- connection.
The bolt is liftable bolt, according to actuator size, by adjusting the vertical position of liftable bolt,
Realize that actuator connecting rod, test minor structure are in same level straight line.
Bottom steel base bottom dress is equipped with levelling tube in bottom steel base platform, passes through tune there are four steel tray is gone up and down
The many threads and observation levelling tube of section lifting steel tray realize that entire bottom steel base seat is in level.
The temperature control box being adjusted for the test temperature to test minor structure is equipped with outside the test minor structure.
It further include the peripheral circuit that see-saw circuit, adder operation circuit and bleeder circuit are constituted, wherein
The control mode of the actuator drive module is equivalent force-feedback control, is realized by DAC module, is amplified by reverse phase
The dual channel mode of circuit and adder operation circuit cooperation DAC module, the control of the positive and negative pulling force of Lai Shixian actuator, Jin Ershi
Now test the real-time power load of minor structure；
The data acquisition module is realized that adder operation circuit issues force signal and regulated power supply straight by ADC module
Galvanic electricity pressure is converted into the positive voltage that can be identified after being added, and force signal and displacement signal are compressed to ADC module by bleeder circuit can
In the voltage range of identification.
Compared with the prior art, technical solutions of the utility model have the beneficial effect that
The first, in the real-time mixed test system of the utility model, mix-loaded counterforce device can be big according to different sizes
Small test minor structure carries out structural adjustment, and degree of regulation is high.
The second, the real-time mixed test system of the utility model is built simply, cheap, and test process expense is low and easy
In control the features such as, and the number of units and performance and testing crew quantity to host computer outfit require be greatly lowered, make
Obtaining real-time mixed test system widely can promote and apply, and considerably reduce the threshold of bulk testing research.
Third, the utility model mix-loaded counterforce device combine real-time mixed test system be able to carry out compared with large-tonnage
Speed relationship type test minor structure real-time bulk testing, increase substantially its application range, can more really into
Row bulk testing.
4th, the circuit of actuator drive module described in the utility model and data acquisition module concentrates on one piece of circuit board
On, peripheral circuit includes see-saw circuit, adder operation circuit and bleeder circuit.Since each DAC module can only export just
Voltage cannot achieve the control of the positive and negative pulling force of vibration excitor (needing to export generating positive and negative voltage), it is therefore desirable to introduce peripheral circuit cooperation
The dual channel mode of DAC module, to realize the control to Electrodynamic Vibrators.Peripheral circuit function needs include to two at this time
Road voltage is added function and the function to voltage reversal amplification.Since the signal output of force snesor includes generating positive and negative voltage (positive electricity
Pressure indicates pressure, and negative voltage indicates pulling force), ADC module can only identify positive voltage, it is therefore desirable to will using adder operation circuit
Force signal is converted into the positive voltage that can be identified, last force signal and displacement signal and passes through partial pressure electricity after being added with fixed positive voltage
In the voltage range that road can identify signal compression to ADC module.
Detailed description of the invention
Fig. 1 is the block schematic illustration of the hybrid power pilot system of the utility model；
Fig. 2 is the utility model equivalent force feedback control principle figure；
Fig. 3 is the structural schematic diagram of the utility model mix-loaded counterforce device；
Fig. 4 is the real-time mixed test system structural schematic diagram of the utility model；
Tri- layers of viscoplasticity shock frame structure chart of Fig. 5；
Fig. 6 is the bottom displacement comparison figure that the utility model adds and do not add viscoplasticity damper；
Fig. 7 is the bottom velocity comparison diagram that the utility model adds and do not add viscoplasticity damper；
Fig. 8 is the bottom acceleration comparison diagram that the utility model adds and do not add viscoplasticity damper；
Fig. 9 is the circuit diagram of voltage conversion circuit in the utility model；
Figure 10 is the circuit diagram of see-saw circuit in the utility model.
Wherein, 1 is host computer；2 be slave computer；3 be power amplifier；4 be sensor；4-1 is resistance strain gage tension and compression
Force snesor；4-2 is device for sensing linear displacement caused by magnetostriction；5 be actuator；6 be constant voltage source；7 be load counterforce device；7-
1 is actuator support platform；7-2 is actuator mounting base；7-3 is steel reaction frame；7-4 is counter-force threaded rod；7-5 is bottom
Steel base seat；7-6 is bolt；7-7 is liftable bolt；8 be temperature control box；9 be viscoplasticity damper；10 be steel tray；11 be water
Quasi- pipe.
Specific embodiment
According to following embodiments, the utility model may be better understood.However, those skilled in the art is easy reason
It solves, content described in embodiment is merely to illustrate the utility model, detailed without that should will not limit institute in claims
The utility model carefully described.
Embodiment
As shown in Figure 1, the functional framework figure of the utility model hybrid power pilot system, comprising: host computer, slave computer,
Wherein, host computer includes host computer serial communication module, host computer numerical operation module, and software is by taking Matlab software as an example；Under
The control system module of position machine includes serial communication module, actuator drive module, data acquisition module.
The host computer 1 is realized by host computer serial communication module sends command signal to slave computer 2, passes through slave computer
1 serial communication module come receive slave computer 2 transmitting displacement and force signal.Host computer numerical operation module includes numerical value minor structure
Modeling and numerical integration algorithm.
It writes program logarithm minor structure in numerical operation software calculating environment to be modeled, including lumped mass
Matrix, stiffness matrix, the calculating of Rayleigh damping matrix, external drive act on transformation ratio in selection and multiple degrees of freedom bulk testing
Calculating.
As shown in Fig. 2, the control mode of the actuator drive module is equivalent force-feedback control, it is real by DAC module
It is existing, the dual channel mode of DAC module with see-saw circuit and add circuit circuit, the positive and negative pulling force of Lai Shixian actuator
The control of (needing to export generating positive and negative voltage), to realize the control to actuator.
The displacement of the data acquisition module and force signal are acquired by displacement sensor and force snesor respectively, by ADC mould
Block is realized, wherein the positive voltage that can be identified is converted into after being added force signal with fixed positive voltage using adder operation circuit,
Last force signal and displacement signal pass through in the voltage range that bleeder circuit can identify signal compression to ADC module.
The program development of the slave computer includes firmware library core document and peripheral hardware firmware library file.Core document includes
Two files of CMSIS and STM32F10x_Std Periph_Driver；Peripheral hardware firmware library file include delay, sys,
The files such as usart and serial communication module, ADC module, the software design of DAC module and PID module.
Host computer 1 is connected using data line with slave computer 2 by serial ports, and slave computer 2 is put with sensor 4 and power
It is all made of data line between big device 3 to be connected, power amplifier 3 is connected with actuator 5 using conducting wire, each constant voltage source 6
It is connected respectively with slave computer 2, sensor 4 using conducting wire is corresponding；Actuator support platform 7-1 and actuator mounting base 7-2 is used
Bolt 7-6 assembly connection is articulated and connected between actuator 5 and actuator mounting base 7-2, viscoplasticity damper 9, actuator 5, power
Screw assembly connection is corresponded to by counter-force threaded rod 7-4 between sensor 4-1, steel reaction frame 7-3.
The circuit of the power amplifier 3 is made of amplifying stage, promotion grade and signal output stage three parts, slave computer 2
The weak electric signal of sending drive ram 5 after these three functional circuits amplify.
By constant voltage source 6 be force snesor 4-1, displacement sensor 4-2 and slave computer 2 provide respectively 5V, 24V, ±
The constant voltage of 9V.
When considering influence of the temperature to viscoplasticity damper 9 to building structure damping effect, temperature control box 8 is connected to
The outside of viscoplasticity damper 9, adjusting and keeping temperature is 10 DEG C.
Shown in Fig. 4, the real-time mixed test system structural schematic diagram of the utility model, including mix-loaded counterforce device,
Host computer 1, slave computer 2, power amplifier 3, resistance strain gage pull pressure sensor 4-1, device for sensing linear displacement caused by magnetostriction
4-2, actuator 5, constant voltage source 6, temperature control box 8.
As shown in figure 3, the mix-loaded counterforce device, for installing and fixing test minor structure, comprising: bottom base steel
Seat 7-5, steel reaction frame 7-3, actuator support platform 7-1 and actuator mounting base 7-2, wherein above the steel base seat 7-5 of bottom
Side connects steel reaction frame 7-3, and the other side connects actuator support platform 7-1, actuator mounting base above the steel base seat 7-5 of bottom
Actuator 5 is hingedly connected on 7-2；Setting test minor structure, the steel reaction frame 7- between steel reaction frame 7-3 and actuator 5
Side and the test minor structure one end power transmission connection that actuator 5 is closed on 3, test the driving of the minor structure other end and actuator 5
Component rigid connection；The bottom of the steel reaction frame 7-3 steel reaction frame 7-3 and actuator are realized by first position regulating mechanism
The coarse adjustment of straight line spacing between 5；It is equipped with second position regulating mechanism between the steel reaction frame 7-3 and test minor structure,
Fine-tuning for the straight line spacing between steel reaction frame 7-3 and actuator 5 is realized by second position regulating mechanism；The temperature control
Case 8 is removably connected to outside test minor structure, is adjusted for the test temperature to test minor structure.
Further, the first position regulating mechanism includes adjusting steel plate, adjusts Interal fixation and is connected to steel reaction frame
The bottom of 7-3 adjusts bolt assembled between steel plate and bottom steel base seat 7-5 and connects, along actuator 5 on the adjusting steel plate
Power transmission direction uniform intervals arrange multiple bolt connecting holes；It is adjusted between steel reaction frame 7-3 and bottom steel base seat 7-5 by adjusting
Save the coarse adjustment for the straight line spacing that bolt hole corresponding position is realized between steel reaction frame 7-3 and actuator 5.
Further, the first position regulating mechanism includes sliding block, and the sliding block is fixedly connected on steel reaction frame 7-3
Bottom, be equipped with elongated slot along 5 power transmission direction of actuator on the bottom steel base seat 7-5, the bottom of steel reaction frame 7-3 passes through cunning
Block is slidably connected in the elongated slot, to adjust the straight line spacing between steel reaction frame 7-3 and actuator 5, and is filled by locking
Set locking.
Further, the second position regulating mechanism includes counter-force threaded rod 7-4, the counter-force threaded rod 7-4 setting
Between steel reaction frame 7-3 and test minor structure, realized by adjusting steel reaction frame 7-3 and counter-force threaded rod 7-4 many threads
Spacing fine-tunes between 9 test specimen of steel reaction frame 7-3 and viscoplasticity damper.
Further, the vertical direction uniform intervals on the actuator support platform 7-1 along the power transmission of actuator 5 are several
A bolt hole carries out Level tune by bolt hole between the actuator mounting base 7-2 and actuator support platform 7-1, protects
Card actuator 5 is precisely connect with test minor structure.
Further, the bolt is liftable bolt 7-7, according to 5 size of actuator, by adjusting liftable spiral shell
The vertical position of bolt 7-7 realizes that 5 connecting rod of actuator, test minor structure are in same level straight line.
Further, the bottom bottom steel base seat 7-5 dress is there are four liftable steel tray 10, on the steel base seat 7-5 platform of bottom
Levelling tube is installed, realizes entire bottom steel base seat by many threads and observation levelling tube 11 that adjust liftable steel tray 10
7-5 is in level.Actuator support platform 7-1, steel reaction frame 7-3, bottom steel base seat 7-5, it is all made of I-steel, makes whole dress
Setting both has big rigidity, meets the stability of structure, effectively avoids resonating, and can save steel.
The test method of the real-time mixed test system of the utility model, including following test procedure:
S1, engineering structure mathematical calculation model established in host computer, according to the pumping signal applied on numerical model
The control signal command of the first step is calculated with the response signal of initialization；
S2, host computer transmit control signals to slave computer by data communication module, and slave computer connects suspension control signal；
S3, slave computer send control signals to power amplifier in real time, and power amplifier sends out amplified signal
Actuator drive module is given, the control mode of the actuator drive module is equivalent force-feedback control, by DAC module reality
It is existing, the dual channel mode of DAC module with see-saw circuit and adder operation circuit, the positive and negative pulling force of Lai Shixian actuator
Control, to realize control to actuator, and then realize the real-time power load of test minor structure；
S4, sensor acquire the power and displacement data of test minor structure in real time, and are sent to slave computer, pass through PID module
Feedback realizes control signal command；
Power and displacement data that data acquisition module is fed back are sent to upper by S5, slave computer by data communication module
Machine；
S6, host computer are calculated according to the power and displacement data of the test minor structure received by numerical integration algorithm
The control signal of speed, acceleration and next step；
S7, step S2- step S6 is repeated, until pumping signal terminates.
As shown in figure 5, being mixed by taking three layers of viscoplasticity shock frame structure as an example using above-mentioned real-time mixed test system
Close test.Structure is three story frame structures, and first layer is equipped with viscoplasticity damper.
It takes viscoplasticity damper for test minor structure in this bulk testing, is controlled temperature at 10 DEG C using temperature control box.
The stiffness matrix and damping matrix of numerical value minor structure are respectively KN、CN, the rigidity and damping for testing minor structure is respectively
KE、CE, the mass matrix of three story frame structures is M.
Wherein, design parameter value are as follows:×106N/m。
The seismic wave inputted when test is El-Centro wave, acceleration peak value 15gal.Structural damping uses
Rayleigh damping, it is assumed that damping matrix C is the linear combination of mass matrix and stiffness matrix, i.e., system be proportional damping or
Rayleigh damping.Damping matrix is calculated
Three story frame structures added under geological process with do not add comparison of test results such as Fig. 6 of viscoplasticity damper~
Shown in Fig. 8.Adding the bottom of damper frame structure bulk testing under geological process to be displaced maximum value is 0.683mm, minimum value
For -0.548mm；Speed maximum value is 9.8mm/s, and minimum value is -11.1mm/s；Acceleration maximum value is 0.24m/s2, minimum
Value is -0.29m/s2；Not plus damper frame structure under geological process bottom displacement maximum value be 1.187mm, minimum value be-
1.24mm；Speed maximum value is 17.2mm/s, and minimum value is -20.7mm/s；Acceleration maximum value is 0.336m/s2, minimum value
For -0.328m/s2.Adding the bottom of damper afterframe structure to be displaced maximum value reduces 55.8%, and speed maximum value reduces
46.4%, acceleration maximum value reduces 28.6%.From the foregoing, it can be seen that frame structure bottom power after adding viscoplasticity damper
Response is obviously reduced, and illustrates that viscoplasticity damper damping effect is preferable.
Fig. 9 is the circuit diagram of voltage conversion circuit in the utility model；
Figure 10 is the circuit diagram of see-saw circuit in the utility model.
The circuit of actuator drive module described in the utility model and data acquisition module concentrates on one piece of circuit board, outside
Enclosing circuit includes see-saw circuit, adder operation circuit and bleeder circuit.Since each DAC module can only export positive voltage,
It cannot achieve the control of the positive and negative pulling force of vibration excitor (needing to export generating positive and negative voltage), in view of the above-mentioned problems, the utility model introducing is outer
The dual channel mode of circuit cooperation DAC module is enclosed, to realize the control to Electrodynamic Vibrators.Peripheral circuit function needs at this time
It include that function and the function to voltage reversal amplification are added to two-way voltage.Since the signal output of force snesor includes positive and negative
Voltage (positive voltage indicates pressure, and negative voltage indicates pulling force), ADC module can only identify positive voltage, it is therefore desirable to be transported using addition
It calculates and is converted into the positive voltage that can be identified after force signal is added by circuit with fixed positive voltage, last force signal and displacement signal are logical
It crosses in the voltage range that bleeder circuit can identify signal compression to ADC module.
In the utility model, the numerical integration algorithm using central difference method, Newmark- β method, Wilson- θ method or
Finite Element.
Claims (9)
1. a kind of real-time mixed test system, which is characterized in that including mix-loaded counterforce device, sensor, data acquisition module
Block, power amplifier, actuator drive module, actuator, data communication module, constant voltage source module, slave computer and host computer,
Wherein, host computer is connected by data communication module with slave computer, is all made of between slave computer and sensor and power amplifier
Data line is connected, and is respectively adopted between power amplifier and actuator drive module, between power amplifier and actuator
Conducting wire is connected；
Constant voltage source module be it is multiple, multiple constant voltage source modules are corresponding connected using conducting wire with slave computer, sensor respectively；
The sensor includes displacement sensor and force snesor, wherein force snesor is used to test that minor structure to be subject to adds
Power Real-time Feedback is carried to data acquisition module；Displacement sensor is used to test the displacement Real-time Feedback of minor structure generation to number
According to acquisition module；
Force signal and displacement signal are transferred to slave computer by the data acquisition module, and slave computer is passed by data communication module again
It is defeated by host computer；
The mix-loaded counterforce device includes: bottom steel base seat, steel reaction frame, actuator support platform and actuator installation
Seat, wherein steel reaction frame is connected at the upper side of the steel base seat of bottom, connection actuator support in the other side is flat above the steel base seat of bottom
Platform is hingedly connected with actuator in actuator mounting base；
Minor structure is tested in setting between steel reaction frame and actuator, and side and test of actuator are closed on the steel reaction frame
Structure one end power transmission connection, the driving part for testing the minor structure other end and actuator are rigidly connected；
The straight line spacing between steel reaction frame and actuator is realized by first position regulating mechanism in the bottom of the steel reaction frame
Coarse adjustment；
It is equipped with second position regulating mechanism between the steel reaction frame and test minor structure, is realized by second position regulating mechanism
Straight line spacing between steel reaction frame and actuator fine-tunes.
2. real-time mixed test system according to claim 1, which is characterized in that the first position regulating mechanism includes
Steel plate is adjusted, the bottom that Interal fixation is connected to steel reaction frame is adjusted, adjusts bolt assembled between steel plate and bottom steel base seat
Connection, described adjust arrange multiple bolt connecting holes along the power transmission direction uniform intervals of actuator on steel plate；It is anti-by adjusting steel
The thick of the straight line spacing between bolt hole corresponding position realization steel reaction frame and actuator is adjusted between power frame and bottom steel base seat
It adjusts.
3. real-time mixed test system according to claim 1, it is characterised in that: the first position regulating mechanism includes
Sliding block, the sliding block are fixedly connected on the bottom of steel reaction frame, are equipped with and grow along actuator power transmission direction in the bottom steel base seat
The bottom of slot, steel reaction frame is slidably connected in the elongated slot by sliding block, straight between steel reaction frame and actuator to adjust
Line spacing, and locked by locking system.
4. real-time mixed test system according to claim 1, it is characterised in that: the second position regulating mechanism includes
Counter-force threaded rod, the counter-force threaded rod are set between steel reaction frame and test minor structure, by adjusting steel reaction frame and instead
Spacing fine-tunes between power threaded rod many threads realization steel reaction frame and test minor structure.
5. real-time mixed test system according to claim 1, which is characterized in that along work in the actuator support platform
Dynamic several bolts hole of the power transmission vertical direction uniform intervals of device, lead between the actuator mounting base and actuator support platform
It crosses bolt hole and carries out Level tune, guarantee that actuator is precisely connect with test minor structure.
6. real-time mixed test system according to claim 2, it is characterised in that: the bolt is liftable bolt, root
Realize that actuator connecting rod, test minor structure are in by adjusting the vertical position of liftable bolt according to actuator size
Same level straight line.
7. real-time mixed test system according to claim 1, it is characterised in that: there are four rise for bottom steel base bottom dress
Steel tray is dropped, levelling tube is installed in bottom steel base platform, by many threads and observation level that adjust lifting steel tray
Pipe realizes that entire bottom steel base seat is in level.
8. real-time mixed test system according to claim 1, it is characterised in that: be equipped with and use outside the test minor structure
In the temperature control box that the test temperature to test minor structure is adjusted.
9. real-time mixed test system according to claim 1, it is characterised in that: further include see-saw circuit, addition
The peripheral circuit that computing circuit and bleeder circuit are constituted, wherein
The control mode of the actuator drive module is equivalent force-feedback control, is realized by DAC module, by see-saw circuit
With the dual channel mode of adder operation circuit cooperation DAC module, the control of the positive and negative pulling force of Lai Shixian actuator, and then realization examination
Test the real-time power load of minor structure；
The data acquisition module realized by ADC module, the direct current that adder operation circuit issues force signal and regulated power supply
Pressure is converted into the positive voltage that can be identified after being added, and force signal and displacement signal are compressed to ADC module by bleeder circuit to be known
In other voltage range.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821181011.4U CN208921385U (en) | 2018-07-24 | 2018-07-24 | Real-time mixed test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821181011.4U CN208921385U (en) | 2018-07-24 | 2018-07-24 | Real-time mixed test system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982039A (en) * | 2018-07-24 | 2018-12-11 | 东南大学 | Bulk testing load counterforce device, real-time mixed test system and its test method |
| CN113324718A (en) * | 2021-05-14 | 2021-08-31 | 东南大学 | Large-scale visual real-time hybrid test system and test method thereof |
-
2018
- 2018-07-24 CN CN201821181011.4U patent/CN208921385U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982039A (en) * | 2018-07-24 | 2018-12-11 | 东南大学 | Bulk testing load counterforce device, real-time mixed test system and its test method |
| CN108982039B (en) * | 2018-07-24 | 2023-09-22 | 东南大学 | Loading counterforce device for mixing test, real-time mixing test system and test method thereof |
| CN113324718A (en) * | 2021-05-14 | 2021-08-31 | 东南大学 | Large-scale visual real-time hybrid test system and test method thereof |
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