CN110239743A - The method of controlling security of dynamical system in helicopter W.T test - Google Patents
The method of controlling security of dynamical system in helicopter W.T test Download PDFInfo
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- CN110239743A CN110239743A CN201910644446.0A CN201910644446A CN110239743A CN 110239743 A CN110239743 A CN 110239743A CN 201910644446 A CN201910644446 A CN 201910644446A CN 110239743 A CN110239743 A CN 110239743A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/10—Plc systems
- G05B2219/14—Plc safety
- G05B2219/14006—Safety, monitoring in general
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention discloses a kind of method of controlling security of dynamical system in helicopter W.T test, the dynamical system includes: frequency converter and variable-frequency motor, and frequency converter connects host computer by main control PLC with variable-frequency motor；The power control unit of main control PLC and host computer as dynamical system, meanwhile, power control system also connects the other systems of lubricating oil vehicle and helicopter W.T test by main control PLC；The method of controlling security of dynamical system is controlled according to the following procedure in power control system in the helicopter W.T test: step 1, thening follow the steps 2 when lubricating oil vehicle is working properly；Step 2,3 are thened follow the steps when frequency converter is working properly；Step 3, start helicopter W.T test, start dynamical system；Step 4, dynamical system is stopped after the completion of helicopter W.T test；Step 5, when variable-frequency motor revolving speed is zero, make finishing control after frequency converter separating brake.The present invention can ensure the security performance of helicopter W.T test.
Description
Technical field
The present invention relates to helicopter W.T test technical field, dynamical system in especially a kind of helicopter W.T test
Method of controlling security.
Background technique
Helicopter W.T test is to drive rotor model high speed rotation using power motor in wind-tunnel, and helicopter simulating flies
Row, to test the test of the aerodynamic characteristics such as blade performance.Since the high speed (blade tip linear velocity is greater than 210 meter per seconds) of rotor causes
The high risk of helicopter test, therefore the Security Techniques building of helicopter W.T test has very crucial meaning, it
It is related to the safe and reliable operation of test.
In helicopter W.T test, rotary power is provided by testing stand dynamical system and drives rotor high-speed cruising, because
This dynamical system is that helicopter W.T test is important safeguard protection position, and being mainly reflected in when causing danger failure can
Parking in time, to avoid or reduce test loss.
Pervious helicopter power control system control is based primarily upon frequency converter and is constructed, and reads electricity by serial communication
Machine runs relevant parameter, and control program does not test shape such as testing stand reduction gearbox lubricating oil operating status with other systems in real time
State, other system running states etc. are associated, therefore when test is broken down, since power control system fails to stop in time
Vehicle causes to lose situations such as increasing appearance.
In order to reduce the risk of helicopter W.T test, increase the security performance of test, spy constructs the straight of soft or hard combination
Machine wind tunnel test framework is risen, safety control structure signal is as shown in Figure 1.Dynamical system is to test the core of safeguard protection disposition
Subsystem, vibration and temperature monitoring system realize the monitoring to mechanical parts such as testing stand transmission and reduction gearboxes, operation information pipe
Reason system completes test balance physical quantity and the operation information of electric-control system shows and manages, health management system arranged in test process
In be in background operation state, collect the status information of needs, complete the assessment to operating status, and pass through information notice test
Management system forms corresponding controlling test process and safe handling measure.Health management system arranged formation fault diagnosis after test
Report and maintenance are suggested.Power control system is the core institution of helicopter W.T test security control as seen from the figure.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the above problems, providing a kind of helicopter W.T test
The method of controlling security of middle dynamical system.
The technical solution adopted by the invention is as follows:
The method of controlling security of dynamical system in a kind of helicopter W.T test, the dynamical system include: frequency converter and
Variable-frequency motor, frequency converter and variable-frequency motor connect host computer by main control PLC；Main control PLC and host computer are as dynamical system
Power control unit, meanwhile, power control system is also by its of main control PLC connection lubricating oil vehicle and helicopter W.T test
His system；In the helicopter W.T test method of controlling security of dynamical system be in power control system according to the following procedure
It is controlled:
Step 1,2 are thened follow the steps when lubricating oil vehicle is working properly；
Step 2,3 are thened follow the steps when frequency converter is working properly；
Step 3, start helicopter W.T test, start dynamical system；
Step 4, dynamical system is stopped after the completion of helicopter W.T test；
Step 5, when variable-frequency motor revolving speed is zero, make finishing control after frequency converter separating brake.
Further, lubricating oil vehicle process whether working properly is judged in step 1, comprising:
Step 1.1, start lubricating oil vehicle；
Step 1.2, when real-time tank temperature is greater than default tank temperature lower limit value, step 1.3 is executed；
Step 1.3, when the first real-time vibration displacement of the PLC of the lubricating oil vehicle rack transmission shaft monitored is pre- no more than first
If when vibration displacement, executing step 1.4, vibration displacement sensor is otherwise checked；
Step 1.4, oil-feed pump and inlet valve are opened；
Step 1.5, when real-time input pressure is greater than default input pressure, step 1.6 is executed, otherwise checks oil-feed pump simultaneously
Adjust inlet valve；
Step 1.6, delay a period of time opens scavenge oil pump；
Step 1.7, when real-time return flow is greater than default return flow, step 1.8 is executed, otherwise checks oil return pipe
Road；
Step 1.8, when the real-time circling water flow rate of motor cooling water is not more than default circling water flow rate, step 1.9 is executed, it is no
Then check water cooling pipeline；
Step 1.9, when the oil return temperature difference is not more than the default oil return temperature difference, step 1.10 is executed, otherwise, checks reduction gearbox；
Step 1.10, when real-time reduction gearbox temperature is not more than default reduction gearbox temperature, step 1.11 is executed, is otherwise checked
Reduction gearbox；
Step 1.11, when the second real-time vibration displacement of the PLC of the lubricating oil vehicle rack transmission shaft monitored is not more than second
When default vibration displacement, indicates that lubricating oil vehicle is normal, otherwise check transmission shaft.
Further, step 1.2, when real-time tank temperature is not more than default tank temperature lower limit value, pass through heating oil
Stop heating when case makes tank temperature reach default tank temperature ceiling value.
Further, the default tank temperature lower limit value is 27 DEG C；The default tank temperature ceiling value is 41 DEG C.
Further, after step 3 starts helicopter W.T test, by the work for monitoring lubricating oil vehicle and variable-frequency motor
Parameter controls the alarm of dynamical system and stops in emergency.
Further, the real-time working parameter by monitoring lubricating oil vehicle and variable-frequency motor, controls dynamical system
The process alarmed and stopped in emergency are as follows:
Step 3.1, when the first real time motor temperature is not more than default normality motor temperature, start variable-frequency motor and execute
Step 3.2, motor water cooling system and variable-frequency motor are otherwise checked；
Step 3.2, when current of electric alarm threshold value of the real time motor current no more than setting, step 3.3 is executed, otherwise
It is alarmed or is stopped in emergency according to the current of electric alarm threshold value of setting and parking threshold value, and check variable-frequency motor power data
And variable-frequency motor phase insulation；
Step 3.3, when real-time rotor revolving speed and default rotor rotational speed difference are not more than preset rotation speed difference, step is executed
3.4, otherwise check aerodynamic loading and converter parameter；
Step 3.4, when the real-time characteristic vibration of testing stand key position is not more than predetermined patterns eigen vibration, execution step
3.5, it is otherwise alarmed or is stopped in emergency according to the genius loci vibration alarming threshold value of setting and parking threshold value, and combine other
Signal analysis checks associated components；
Step 3.5, when lubricating oil vehicle running parameter normally thens follow the steps 3.6, otherwise according to lubricating oil vehicle running parameter
Alarm threshold value and parking threshold value are alarmed or are stopped in emergency；
Step 3.6, when the second real time motor temperature is not more than default motor operating temperature, step 4 is executed, otherwise basis
The motor temperature alarm threshold value of setting and parking threshold value are alarmed or are stopped in emergency, and check variable-frequency motor power data and
Variable-frequency motor phase insulation.
Further, it is reported in the step 3.2 according to the current of electric alarm threshold value of setting and threshold value of stopping in emergency
Method that is alert or stopping in emergency are as follows:
Stop when judging that real time motor current is greater than the current of electric alarm threshold value of setting and is not more than the current of electric set
When vehicle threshold value, alarm；
When judging that real time motor current is greater than the current of electric parking threshold value of setting, stop in emergency；
Wherein, the current of electric alarm threshold value set presets motor parking as 1.1 times of variable-frequency motor rated operational current
Electric current is 1.5 times of variable-frequency motor rated operational current.
Further, the process stopped in emergency, comprising:
Step 30.1, power control unit gives dynamical system emergency mobile forces stop signal；
Step 30.2, power control unit gives wind-tunnel ram compression control system emergency mobile forces stop signal；
Step 30.3, power control unit gives other control system emergency mobile forces stop signal.
Further, the communication modes based on libNoDaver are used between the main control PLC and host computer.
Further, when there is miscommunication, main control PLC is handled by stopping in emergency, and is carried out by host computer
Alarm.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, the present invention establishes helicopter W.T test security control framework by PLC, combines power control system, power
System, operating status of other systems of lubricating oil vehicle and helicopter W.T test etc., pass through the means guarantee such as monitoring, limit value
Helicopter W.T test is not judged by accident, the security performance not being delayed.
2, the present invention establishes PLC communication using the communication modes based on libNoDaver, communicates host computer and main control PLC
Speed improves an order of magnitude, constructs the communication basis of actual time safety protection.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is helicopter W.T test safety control structure.
Fig. 2 is the structural schematic diagram of power control system of the invention.
Fig. 3 is the flow diagram of the method for controlling security of dynamical system in helicopter W.T test of the invention.
Fig. 4 is lubricating oil vehicle trouble free service process block diagram of the invention.
Fig. 5 is dynamical system variable-frequency motor trouble free service process block diagram of the invention.
Fig. 6 is the security control process block diagram that stops in emergency of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, claimed invention is not intended to limit to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
Feature and performance of the invention are described in further detail with reference to embodiments.
Embodiment 1
The method of controlling security of dynamical system, the dynamical system in a kind of helicopter W.T test provided in this embodiment
System, as shown in Figure 2, comprising: frequency converter and variable-frequency motor, frequency converter and variable-frequency motor connect host computer by main control PLC；Master control
The power control unit of PLC and host computer as dynamical system, meanwhile, power control unit, which is also connected by main control PLC, to be lubricated
The other systems of oily vehicle and helicopter W.T test；The present invention using PLC establish host computer and dynamical system, lubricating oil vehicle with
And the communication of the other systems of helicopter W.T test, by PLC control module and data acquisition module to dynamical system, lubrication
The other systems of oily vehicle and helicopter W.T test carry out the data acquisition of switching value (Boolean quantity) and analog quantity, and pass through
24VI/O signal assigns control instruction.Wherein, the other systems of helicopter W.T test may include: management system, master
Axis pitch system, wind-tunnel ram compression control system, wind-tunnel turntable control system and vibration monitoring system etc..
It using the power control system that PLC is established is constructed based on ICP/IP protocol, communication is reliably entire power
The guarantee of control system reliability service, therefore need to increase the relevant safety control strategy of communication in system program design: when
When there is miscommunication, main control PLC is handled by stopping in emergency, and is alarmed by host computer.Host computer and main control PLC
Between communication reliability be mainly reflected in the timeliness of data and the reliability of communication.Due to the dynamic characteristic of helicopter test
It is required that the refreshing frequency of operation data must not be lower than 5Hz.Communication based on OPC mode between traditional upper computer software and PLC
Mode does not reach requirement, and one time access time is 500ms, and reliability is bad, therefore main control PLC and host computer of the invention
Between use the communication modes based on libNoDaver, an access time is as low as 1ms.
As shown in figure 3, the method for controlling security of dynamical system is in power control system in the helicopter W.T test
On controlled according to the following procedure:
Step 1,2 are thened follow the steps when lubricating oil vehicle is working properly；If lubricating oil turner make it is abnormal, to lubricating oil vehicle
It is checked；
Step 2,3 are thened follow the steps when frequency converter is working properly；Judging whether frequency converter is working properly can be according to setting
Fault code make a definite diagnosis failure cause；
Step 3, start helicopter W.T test, start dynamical system；Generally, according to helicopter W.T test process,
Rotor must first rotate, and start to dry again after reaching test speed, and wind speed starts formal test process after stablizing.When primary blowing
Between generally must not exceed 30 minutes.
Step 4, dynamical system is stopped after the completion of helicopter W.T test；Generally, after completing primary blowing program content,
First blowing-out stops rotor wing rotation after waiting wind speed to be lower than 10 meters.
Step 5, when variable-frequency motor revolving speed is zero, make finishing control after frequency converter separating brake.
In the present embodiment, in lubricating oil vehicle and frequency converter working properly, dynamic Control group can also generally be reexamined
Part, dynamical system, the other systems of lubricating oil vehicle and helicopter W.T test whether normal cluster, thus further to other
Whether system is working properly to be checked.
As shown in figure 4, judging lubricating oil vehicle process whether working properly in step 1, comprising:
Step 1.1, start lubricating oil vehicle；
Step 1.2, when real-time tank temperature is greater than default tank temperature lower limit value, step 1.3 is executed；Further,
When real-time tank temperature is not more than default tank temperature lower limit value, tank temperature is set to reach default fuel tank temperature by heating fuel tank
Stop heating when spending ceiling value.The default tank temperature lower limit value and default tank temperature ceiling value are carried out according to practical application
Setting, in the present embodiment, the default tank temperature lower limit value are 27 DEG C；The default tank temperature ceiling value is 41 DEG C,
If fuel tank oil temperature is lower than 27 DEG C, the retarder of lubricating oil vehicle may oil leak.
Step 1.3, when the first real-time vibration displacement of the PLC of the lubricating oil vehicle rack transmission shaft monitored is pre- no more than first
It, can be by checking vibration displacement sensor if when vibration displacement, executing step 1.4, otherwise showing lubricating oil vehicle abnormal vibration
Queueing problem.Generally, the first default vibration displacement can be set to 2.0mm.
Step 1.4, oil-feed pump and inlet valve are opened；
Step 1.5, when real-time input pressure is greater than default input pressure, step 1.6 is executed, otherwise shows oil-feed pump event
Barrier, can be by checking oil-feed pump and adjusting inlet valve queueing problem.Generally, default input pressure can be set to
0.3MPa。
Step 1.6, delay a period of time opens scavenge oil pump；In the present embodiment, be delayed 10 seconds unlatching scavenge oil pumps.
Step 1.7, when real-time return flow is greater than default return flow, step 1.8 is executed, otherwise shows oil return line
It is abnormal, it can be by checking oil return line queueing problem.Generally, default return flow can be set to 0.1L/min.
Step 1.8, when the real-time circling water flow rate of motor cooling water is not more than default circling water flow rate, step 1.9 is executed, it is no
Then show that motor is cooling abnormal, it can be by checking water cooling pipeline queueing problem.Generally, default circling water flow rate can be set to
0.2L/min。
Step 1.9, when the oil return temperature difference is not more than the default oil return temperature difference, step 1.10 is executed, otherwise shows that oily vehicle slows down
Case is abnormal, can be by checking reduction gearbox queueing problem.Generally, presetting the oil return temperature difference can be set to 10 DEG C.
Step 1.10, when real-time reduction gearbox temperature is not more than default reduction gearbox temperature, step 1.11 is executed, is otherwise shown
Oily vehicle reduction gearbox is abnormal, can be by checking reduction gearbox queueing problem.Generally, presetting reduction gearbox temperature can be set to 60
℃。
Step 1.11, when the second real-time vibration displacement of the PLC of the lubricating oil vehicle rack transmission shaft monitored is not more than second
It when default vibration displacement, indicates that lubricating oil vehicle is normal, otherwise shows the transmission axis abnormality of lubricating oil vehicle, can be driven by checking
Axis queueing problem.Generally, the second default vibration displacement can be set to 1.0mm.
Step 1.12, oil-feed pump and inlet valve are closed after the completion of helicopter W.T test, and a period of time that is delayed closes back
Oil pump.In the present embodiment, be delayed 20 seconds closing scavenge oil pumps.
Further, after step 3 starts helicopter W.T test, by the work for monitoring lubricating oil vehicle and variable-frequency motor
Parameter controls the alarm of dynamical system and stops in emergency.
Specifically, it is described by monitor lubricating oil vehicle and variable-frequency motor running parameter, control dynamical system alarm and
The method stopped in emergency, as shown in Figure 5, comprising:
Step 3.1, when the first real time motor temperature is not more than default normality motor temperature, start variable-frequency motor and execute
Step 3.2, otherwise show that motor water cooling system or variable-frequency motor are abnormal, it can be by checking motor water cooling system and variable-frequency motor
Queueing problem, generally, default normality motor temperature can be set to 30 DEG C.
Step 3.2, when current of electric alarm threshold value of the real time motor current no more than setting, step 3.3 is executed, otherwise
It is alarmed or is stopped in emergency according to the current of electric alarm threshold value of setting and parking threshold value, and by checking variable-frequency motor power
Data and variable-frequency motor phase insulation queueing problem.Specifically, when judge real time motor current be greater than setting current of electric
Alarm threshold value and no more than setting current of electric stop threshold value when, alarm；It is set when judging that real time motor current is greater than
Current of electric stop threshold value when, stop in emergency；Wherein, the current of electric alarm threshold value set is the specified work of variable-frequency motor
1.1 times for making electric current preset 1.5 times that motor parking electric current is variable-frequency motor rated operational current.
Step 3.3, when real-time rotor revolving speed and default rotor rotational speed difference are not more than preset rotation speed difference, step is executed
3.4, otherwise by checking aerodynamic loading, determine experiment process, and check converter parameter queueing problem.Generally, it presets and turns
Speed difference value can be set to 5rpm.
Step 3.4, when the real-time characteristic vibration of testing stand key position is not more than predetermined patterns eigen vibration, execution step
3.5, it is otherwise alarmed or is stopped in emergency according to the genius loci vibration alarming threshold value of setting and parking threshold value, and combine other
Signal analysis checks associated components；Genius loci vibration is detected by vibration monitoring system.
Step 3.5, when lubricating oil vehicle running parameter normally thens follow the steps 3.6, otherwise according to lubricating oil vehicle running parameter
Alarm threshold value and parking threshold value are alarmed or are stopped in emergency；The judgment method working properly of lubricating oil vehicle referring to aforementioned process into
Row.
Step 3.6, when the second real time motor temperature is not more than default motor operating temperature, step 4 is executed, otherwise basis
The motor temperature alarm threshold value of setting and parking threshold value are alarmed or are stopped in emergency, and check variable-frequency motor power data and
Variable-frequency motor phase insulation.
It should be noted that causing test to be unable to emergency brake due to the characteristic of lifting airscrew, either stopping in emergency still
Orderly shutdown, variable-frequency motor revolving speed must all be stopped with normal acceleration and deceleration, otherwise Rotor Blade Model be easy to cause to damage.But by
It often needs to use and stops in emergency during the high risk of helicopter test, test.Orderly shutdown be first by rotor control from
It is fitted on the state for being suitble to stop blowing, then blowing-out in trystate, wind speed is waited to stop rotor lower than 10 meter Hou Zai.And stopping in emergency is
First stop rotor, reinforms blowing-out.
The process stopped in emergency, as shown in Figure 6, comprising:
Step 30.1, power control unit gives dynamical system emergency mobile forces stop signal；
Step 30.2, power control unit gives wind-tunnel ram compression control system emergency mobile forces stop signal；
Step 30.3, power control unit gives other control system emergency mobile forces stop signal.
In practical applications, stop in emergency in addition to power control system detection relevant operating parameter meet parking threshold value when into
Row, is additionally provided with corresponding manual control button, carries out behaviour of stopping in emergency to operator between testing ground operator and observing and controlling
Make.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. the method for controlling security of dynamical system in a kind of helicopter W.T test, which is characterized in that the dynamical system includes:
Frequency converter and variable-frequency motor, frequency converter and variable-frequency motor connect host computer by main control PLC；Main control PLC and host computer are as dynamic
The power control unit of Force system, meanwhile, power control system also connects lubricating oil vehicle and helicopter wind-tunnel by main control PLC
The other systems of test；In the helicopter W.T test method of controlling security of dynamical system be in power control system by
Following process is controlled:
Step 1,2 are thened follow the steps when lubricating oil vehicle is working properly；
Step 2,3 are thened follow the steps when frequency converter is working properly；
Step 3, start helicopter W.T test, start dynamical system；
Step 4, dynamical system is stopped after the completion of helicopter W.T test；
Step 5, when variable-frequency motor revolving speed is zero, make finishing control after frequency converter separating brake.
2. the method for controlling security of dynamical system in helicopter W.T test according to claim 1, which is characterized in that step
Lubricating oil vehicle process whether working properly is judged in rapid 1, comprising:
Step 1.1, start lubricating oil vehicle；
Step 1.2, when real-time tank temperature is greater than default tank temperature lower limit value, step 1.3 is executed；
Step 1.3, when the first real-time vibration displacement of the PLC of the lubricating oil vehicle rack transmission shaft monitored is no more than the first default vibration
When dynamic displacement, step 1.4 is executed, otherwise checks vibration displacement sensor；
Step 1.4, oil-feed pump and inlet valve are opened；
Step 1.5, when real-time input pressure is greater than default input pressure, step 1.6 is executed, otherwise check oil-feed pump and is adjusted
Inlet valve；
Step 1.6, delay a period of time opens scavenge oil pump；
Step 1.7, when real-time return flow is greater than default return flow, step 1.8 is executed, otherwise checks oil return line；
Step 1.8, when the real-time circling water flow rate of motor cooling water is not more than default circling water flow rate, step 1.9 is executed, is otherwise examined
Look into water cooling pipeline；
Step 1.9, when the oil return temperature difference is not more than the default oil return temperature difference, step 1.10 is executed, otherwise, checks reduction gearbox；
Step 1.10, when real-time reduction gearbox temperature is not more than default reduction gearbox temperature, step 1.11 is executed, otherwise checks and slows down
Case；
Step 1.11, when the second real-time vibration displacement of the PLC of the lubricating oil vehicle rack transmission shaft monitored is default no more than second
When vibration displacement, indicates that lubricating oil vehicle is normal, otherwise check transmission shaft.
3. the method for controlling security of dynamical system in helicopter W.T test according to claim 1, which is characterized in that step
Rapid 1.2, when real-time tank temperature is not more than default tank temperature lower limit value, so that tank temperature is reached default by heating fuel tank
Stop heating when tank temperature ceiling value.
4. the method for controlling security of dynamical system in helicopter W.T test according to claim 3, which is characterized in that institute
Stating default tank temperature lower limit value is 27 DEG C；The default tank temperature ceiling value is 41 DEG C.
5. the method for controlling security of dynamical system in helicopter W.T test according to claim 1, which is characterized in that
After step 3 starts helicopter W.T test, by monitoring the running parameter of lubricating oil vehicle and variable-frequency motor, dynamical system is controlled
It alarms and stops in emergency.
6. the method for controlling security of dynamical system in helicopter W.T test according to claim 5, which is characterized in that institute
State the real-time working parameter by monitoring lubricating oil vehicle and variable-frequency motor, the process for controlling the alarm of dynamical system and stopping in emergency
Are as follows:
Step 3.1, when the first real time motor temperature is not more than default normality motor temperature, start variable-frequency motor and execute step
3.2, otherwise check motor water cooling system and variable-frequency motor；
Step 3.2, when current of electric alarm threshold value of the real time motor current no more than setting, step 3.3 is executed, otherwise basis
The current of electric alarm threshold value of setting and parking threshold value are alarmed or are stopped in emergency, and check variable-frequency motor power data and
Variable-frequency motor phase insulation；
Step 3.3, when real-time rotor revolving speed and default rotor rotational speed difference are not more than preset rotation speed difference, step 3.4 is executed, it is no
Then check aerodynamic loading and converter parameter；
Step 3.4, it is not more than predetermined patterns eigen vibration when the real-time characteristic of testing stand key position vibrates, executes step 3.5,
Otherwise it is alarmed or is stopped in emergency according to the genius loci vibration alarming threshold value of setting and parking threshold value, and combine other signals
Analysis checks associated components；
Step 3.5, when lubricating oil vehicle running parameter normally thens follow the steps 3.6, otherwise according to the alarm of lubricating oil vehicle running parameter
Threshold value and parking threshold value are alarmed or are stopped in emergency；
Step 3.6, when the second real time motor temperature is not more than default motor operating temperature, step 4 is executed, otherwise according to setting
Motor temperature alarm threshold value and parking threshold value alarmed or stopped in emergency, and check variable-frequency motor power data and frequency conversion
Motor phase insulation.
7. the method for controlling security of dynamical system in helicopter W.T test according to claim 6, which is characterized in that institute
State the method alarmed or stopped in emergency according to the current of electric alarm threshold value of setting and threshold value of stopping in emergency in step 3.2
Are as follows:
When the current of electric parking threshold for judging that real time motor current is greater than the current of electric alarm threshold value set and is not more than setting
When value, alarm；
When judging that real time motor current is greater than the current of electric parking threshold value of setting, stop in emergency；
Wherein, the current of electric alarm threshold value set presets motor parking electric current as 1.1 times of variable-frequency motor rated operational current
It is 1.5 times of variable-frequency motor rated operational current.
8. the method for controlling security of dynamical system, feature exist in helicopter W.T test according to claim 6 or 7
In the process stopped in emergency, comprising:
Step 30.1, power control unit gives dynamical system emergency mobile forces stop signal；
Step 30.2, power control unit gives wind-tunnel ram compression control system emergency mobile forces stop signal；
Step 30.3, power control unit gives other control system emergency mobile forces stop signal.
9. the method for controlling security of dynamical system in helicopter W.T test according to claim 1, which is characterized in that institute
It states between main control PLC and host computer using the communication modes based on libNoDaver.
10. the method for controlling security of dynamical system in helicopter W.T test according to claim 1, which is characterized in that
When there is miscommunication, main control PLC is handled by stopping in emergency, and is alarmed by host computer.
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| CN110686856A (en) * | 2019-09-30 | 2020-01-14 | 中国空气动力研究与发展中心低速空气动力研究所 | Vibration monitoring, early warning and safety protection system for wind tunnel test bed of helicopter 2 m-diameter rotor |
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| CN113625653A (en) * | 2021-08-13 | 2021-11-09 | 陕西春晖矿业科技有限公司 | Control system, method and device for sandstone aggregate operation equipment and electronic equipment |
| CN113687626A (en) * | 2021-10-26 | 2021-11-23 | 中国空气动力研究与发展中心超高速空气动力研究所 | Emergency cut-off control device and method for dangerous media of hypersonic wind tunnel |
| CN113687626B (en) * | 2021-10-26 | 2022-01-18 | 中国空气动力研究与发展中心超高速空气动力研究所 | Emergency cut-off control device and method for dangerous media of hypersonic wind tunnel |
| CN115933517A (en) * | 2023-03-09 | 2023-04-07 | 中国航空工业集团公司哈尔滨空气动力研究所 | Control system for bipolar counter-rotating fan of subsonic wind tunnel power section |
| CN115933517B (en) * | 2023-03-09 | 2024-05-14 | 中国航空工业集团公司哈尔滨空气动力研究所 | Control system of bipolar disrotatory fan for subsonic wind tunnel power section |
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