CN109703777B - Control surface blocking system for fly test of telex transport type airplane - Google Patents
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Abstract
The invention discloses a control surface jamming system for a fly test of a telex transport plane, and belongs to the field of aviation application. The technical scheme of the invention is as follows: and analyzing the requirements of the jamming flight test of the control surface of the telex plane by analyzing the software and hardware characteristics of the flight control system of the telex plane and the signal superposition injection and extraction characteristics. A hardware module and a software module are designed to form a control surface jamming system, and finally the effectiveness of the system is verified through the joint test of the control surface jamming system and the fly-by-wire iron bird control table. The control surface jamming system is suitable for control surface jamming flight tests of all telex transport airplanes, and the control surface jamming system designed by the invention effectively realizes control surface jamming in the flight test process by adding step instruction signals through an actuator controller of the telex flight control system.
Description
Technical Field
The invention discloses a control surface jamming system for a fly test of a telex transport plane, and belongs to the field of aviation application.
Background
The general rule of 25.671 of China civil aviation regulations No. 25 (CCAR25-R4) is as follows:
"must be analyzed, tested, or both to show that the aircraft can continue to fly and land safely without special piloting skills or physical effort after certain failures or jams of the flight control system and control surfaces (including trim, lift, drag, and feel systems) occur within the normal flight envelope. Possible malfunctions must have only a minor effect on the operation of the operating system and must be such that the driver can easily take countermeasures ".
For this purpose, flight tests need to verify the handling characteristics of the aircraft after the aircraft rudder surface is blocked during flight. How to make the aircraft control surface jamming in the flight test process have the skewness required by a tester and can be timely restored to the normal operation state is a key technical point of the control surface jamming flight test and becomes a key technical difficulty for verifying related terms of the CCAR 25.
At present, the control surface jamming flight test of ARJ21-700 airplanes is only developed in China, and comprises unilateral ailerons, unilateral elevators and rudder jamming. The control surface jamming in the flight test process is realized by designing a set of jamming system which can be applied between a steering column and an actuator controller passage. The flight control system of the ARJ21-700 airplane is not a fly-by-wire system, and the used jamming system is not suitable for the fly-by-wire airplane.
The control surface jamming system for the fly test of the telex transport plane provides effective technical support for developing the control surface jamming flight test of the telex transport plane, so that the related terms of CCAR25 can be effectively verified through the flight test, technical support is provided for developing airworthiness qualification approval work of the telex transport plane, and favorable guarantee is provided for developing the control surface jamming flight test of a military telex transport plane.
Disclosure of Invention
The invention aims to: the control surface blocking system for the fly test of the telex transport type airplane is designed, the problem of shortage of control surface blocking supporting technology of the telex transport type airplane control surface blocking flight test is solved, in the control surface blocking flight test process, the control surface blocking system can enable the airplane control surface blocking to be deviated in the deviation degree required by a tester, and can timely recover to a normal operation state, so that the safety of the flight test is guaranteed.
The technical scheme of the invention is as follows:
the utility model provides a control surface jamming system for telex transportation class aircraft flight test which characterized in that, control surface jamming system includes CPU module, analog quantity signal transmission module, discrete magnitude signal receiving module, analog quantity receiving module, safety monitoring excision module, human-computer interaction interface, power module, jamming system's software module:
a CPU module: the CPU module can generate discrete magnitude signals, step instruction signals and pre-programmed threshold signals in real time;
the analog quantity signal sending module: the analog quantity signal sending module can output a step instruction signal in a voltage value range of-10V to 10V generated by the CPU module to an actuator controller of the airplane;
discrete magnitude signal transmission module: the discrete magnitude signal sending module can output the discrete magnitude signal generated by the CPU module to a main flight control computer of the airplane in real time;
discrete magnitude signal receiving module: the discrete magnitude signal receiving module can receive a discrete magnitude signal sent by an electric flight control computer of an airplane in real time and send the received discrete magnitude signal to the CPU module in real time;
analog quantity signal receiving module: the analog quantity signal receiving module can receive analog quantity signals sent by an actuator controller of the airplane in real time and transmit the signals received in real time to the CPU module;
safety monitoring excision module: the safety monitoring and cutting module has two functions, namely, the safety monitoring and cutting module can immediately and automatically cut off a step instruction signal sent by the CPU module after receiving the step instruction signal cutting signal sent by the CPU module; the safety monitoring and cutting module can cut off the step instruction signal sent by the CPU module immediately after receiving the step instruction signal cutting signal sent by the human-computer interaction interface;
a human-computer interaction interface: the driver can control the type and the blocking angle of the control surface to be blocked in real time through the human-computer interaction interface; step instruction signals can be added and normally ended in real time; the aircraft pilot can immediately send a step cutting instruction signal through the man-machine interaction interface;
a power supply module: the power supply module simultaneously supplies power to the CPU module, the analog quantity signal receiving module, the analog quantity signal transmitting module, the discrete quantity signal receiving module, the discrete quantity signal transmitting module, the safety monitoring and cutting module and the human-computer interaction interface;
software module of the control surface jamming system: the hardware module for supporting the control surface jamming system runs, the software module of the jamming system runs in the CPU hardware module and comprises the following modules:
the step command signal calculation generation module is used for sending the step command signal to the analog quantity signal sending module, and the analog quantity signal sending module is used for sending the analog quantity signal to an actuator controller of the airplane;
the analog quantity signal comparison and calculation module is used for transmitting the received analog quantity signal to the analog quantity signal comparison and calculation module, the analog quantity signal comparison and calculation module is used for comparing the received analog quantity signal with a CPU (central processing unit) module preprogrammed threshold, if the analog quantity signal received by the analog quantity signal comparison and calculation module is larger than the CPU module preprogrammed threshold, the CPU module sends an instruction of cutting off a step instruction signal to the safety monitoring cutting module, the safety monitoring cutting module cuts off the step instruction signal, and if the analog quantity signal received by the analog quantity signal comparison and calculation module is smaller than the CPU module preprogrammed threshold, the control surface jamming system continues to work;
the discrete magnitude signal generating module generates a discrete magnitude signal and sends the discrete magnitude signal to the discrete magnitude signal sending module, and the discrete magnitude signal sending module sends the discrete magnitude signal to the main flight control computer of the airplane;
discrete magnitude signal comparison calculation module, discrete magnitude signal receiving module sends the discrete magnitude signal that receives for discrete magnitude signal comparison calculation module, and discrete magnitude signal comparison calculation module carries out the comparison calculation with the preprogrammed threshold value of CPU module with the discrete magnitude signal that receives, if discrete magnitude signal that discrete magnitude signal receiving module received equals the preprogrammed threshold value of CPU module, safety monitoring excision module excision step instruction signal, if discrete magnitude signal that discrete magnitude signal receiving module received is not equal to the preprogrammed threshold value of CPU module, then rudder face card hinders system continuation work.
The control surface jamming system for the fly test of the fly-by-wire transport type aircraft according to claim 1, wherein the amplitude of the step command signal generated by the CPU module in real time can be adjusted in real time through a human-computer interaction interface in the operation process of the control surface jamming system;
the control surface jamming system for the fly test of the fly-by-wire transport type aircraft according to claim 1, wherein the step command signal calculation and generation module can generate more than 60 step signals for selection through a human-computer interaction interface in the fly test process;
the control surface jamming system for the fly-by-wire transport type airplane flight test is characterized in that the human-computer interaction interface can display step command signals sent by the CPU module in real time through a display on the human-computer interaction interface.
The invention has the advantages that:
a) a control surface jamming system for a flight test of an electric transmission transport type airplane can be used for the control surface jamming system for the flight test of the electric transmission transport type airplane, is suitable for various electric transmission transport type airplanes, and can be repeatedly used;
b) the blocking of the airplane ailerons, the elevators, the rudders and the spoilers can be realized;
c) the aircraft can be quickly restored to a normal operating state.
Description of the drawings:
FIG. 1 shows a fundamental principle of a control surface jamming system and a cross-linking relationship diagram of the jamming system and a fly-by-wire system;
FIG. 2 is a cross-linked relationship diagram of a control surface jamming system and a fly-by-wire flight control system;
FIG. 3 is a schematic illustration of the aileron jamming result;
FIG. 4 is a schematic diagram of an elevator sticking result;
FIG. 5 is a schematic diagram of a rudder jamming result;
FIG. 6 is a graph illustrating the jamming results of the spoiler.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings.
The control surface jamming system capable of supporting the telex transport type airplane control surface jamming flight test is designed according to the control surface jamming requirement of the telex transport type airplane control surface jamming flight test on the basis of researching software and hardware characteristics of the telex transport type airplane telex flight control system, and comprises a CPU module, an analog quantity signal sending module, a discrete quantity signal receiving module, an analog quantity receiving module, a safety monitoring cutting module, a human-computer interaction interface, a power supply module and a software module of the jamming system.
The control surface jamming system is completely different from the control surface jamming system used in the past, and the control surface jamming system is enabled to be in the deflection required by a tester by directly superposing a control surface step command signal on an actuator controller of an airplane fly-by-wire flight control system.
The design of the control surface jamming system is provided on the basis of analysis of software and hardware characteristics, signal superposition injection and extraction characteristics of the fly-by-wire system of the fly-by-wire transport type airplane and analysis of requirements of a test of the jamming of the control surface of the fly-by-wire transport type airplane, and the control surface jamming system is completely suitable for the test of the jamming of the control surface of the fly-by-wire transport type airplane.
The design of the hardware and software module of the control surface jamming system considers the high-risk flight test subject of the control surface jamming flight test, in the flight test process, a pilot can enable the control surface to be jammed according to the requirement in the deflection degree required by a tester through the control surface jamming system and also enable the airplane to be recovered to a normal operation state, and once the airplane has an abnormal condition, the system can automatically and quickly enable the airplane to be recovered to the normal operation state or enable the airplane to be rapidly recovered to the normal state through the pilot.
A control surface jamming system for fly tests of telex transport airplanes comprises the following specific steps:
the method comprises the following steps: and analyzing the software and hardware characteristics of the fly-by-wire system of the fly-by-wire transport type airplane and the signal superposition injection and extraction modes.
Starting from the components of the fly-by-wire transportation type airplane control system, firstly, the hardware components of the fly-by-wire transportation type airplane control system are analyzed, as shown in the attached figure 1, the components comprise driver input equipment: steering wheel, pedals, spoiler operating handle, main flight control computer, actuator controller and flight control surface.
And analyzing the operating characteristics of the software, and performing information transmission between the actuator controller and the main flight computer and between the atmospheric data system and the main flight control computer through digital signals. The steering wheel, the pedals, the spoiler operating handle and the actuator controller, and the actuator controller and the flight control surface are transmitted through analog signals.
The actuator controller is an important component of the electric flight control system, and also has a function and a hardware interface capable of superposing external command signals, wherein the superposed command signals are analog quantities. The state characteristic parameters of the aircraft can also be extracted from the actuator controllers.
Step two: and analyzing the requirements of the flight test of the jamming of the control surface of the telex transport type airplane.
The method is characterized in that the requirements of the flight test of the jamming of the control surface are analyzed from the aspects of the type of the jamming of the control surface, the range of the jamming deflection of the control surface, the requirement of the jamming time, the number of channels of the simultaneous jamming, the mode of adding the jamming, the mode of withdrawing the jamming, the mode of emergency removal of the jamming, the safety protection of the jamming and the like, so that a system of the jamming of the control surface meeting the requirements of the flight test of the jamming is designed, and whether the telex plane meets the regulations of 25.671 general rules (c) or not is verified. In the process of a control surface jamming flight test of the telex transport type airplane, the ailerons, the rudder, the elevator and the spoiler need to be jammed respectively, and meanwhile, the jamming deflection is large. In order to ensure that the control surface does not generate large disturbance when entering the blocking position and exiting the blocking position in the blocking flight test process, the blocking and exiting of the control surface are required to be slowly carried out in a certain mode. In order to ensure the safety of the flight test, a driver can rapidly exit from a jamming state at any time. For some telex transport type airplanes, the situations that one side of each airplane is provided with an inner aileron and an outer aileron, or two elevators, or two rudders are provided with an upper rudder and a lower rudder, and the two control surfaces are controlled respectively, so that a blocking system is required to block the two control surfaces at the same time.
Step three: the hardware module of the control surface jamming system of the telex transport type airplane is designed on the basis of analysis of characteristics of a telex flight control system and control surface jamming requirements, and the control surface jamming system comprises a CPU module, an analog quantity signal sending module, a discrete quantity signal receiving module, an analog quantity receiving module, a safety monitoring and cutting module, a human-computer interaction interface, a power supply module and a software module of the jamming system. The basic principle of the control surface jamming system and the cross-linking relation between the jamming system and the fly-by-wire system are shown in the attached figure 1.
A CPU module: the CPU module can generate discrete magnitude signals, step instruction signals and pre-programmed threshold signals in real time; the discrete magnitude signal is transmitted to the discrete magnitude signal sending module, the step instruction signal is transmitted to the analog magnitude signal sending module, and the pre-programmed threshold signal is used for calculation and comparison of the analog magnitude signal comparison and calculation module and the discrete magnitude signal comparison and calculation module; the amplitude of the step instruction signal generated by the CPU module in real time can be adjusted in real time through a human-computer interaction interface in the running process of the control surface jamming system;
the analog quantity signal sending module: the analog quantity signal sending module can output the step instruction signal generated by the CPU module to an actuator controller of the airplane;
discrete magnitude signal transmission module: the discrete magnitude signal sending module can output the discrete magnitude signal generated by the CPU module to a main flight control computer of the airplane in real time;
discrete magnitude signal receiving module: the discrete magnitude signal receiving module can receive a discrete magnitude signal sent by an electric flight control computer of an airplane in real time and send the received discrete magnitude signal to the CPU module in real time;
analog quantity signal receiving module: the analog quantity signal receiving module can receive analog quantity signals sent by an actuator controller of the airplane in real time and transmit the signals received in real time to the CPU module;
safety monitoring excision module: the safety monitoring and cutting module has two functions, namely, the safety monitoring and cutting module can immediately and automatically cut off a step instruction signal sent by the CPU module after receiving the step instruction signal cutting signal sent by the CPU module; the safety monitoring and cutting module can cut off the step instruction signal sent by the CPU module immediately after receiving the step instruction signal cutting signal sent by the human-computer interaction interface;
designing a human-computer interaction interface, wherein the human-computer interaction interface has the following functions:
a) the driver can control the type of the control surface of the blocked control surface and the blocking angle of the control surface in real time through the man-machine interaction interface;
b) step instruction signals can be added and normally ended in real time;
c) a driver can immediately send a signal of a step cutting instruction signal through the man-machine interaction interface;
d) the man-machine interaction interface can display the step instruction signal sent by the CPU module in real time through a display on the man-machine interaction interface.
A power supply module: the power supply module simultaneously supplies power to the CPU module, the analog quantity signal receiving module, the analog quantity signal transmitting module, the discrete quantity signal receiving module, the discrete quantity signal transmitting module, the safety monitoring and cutting module and the human-computer interaction interface; an aircraft power system is capable of supplying power to the power module.
Software module of the control surface jamming system: the hardware module for supporting the control surface jamming system runs, the software module of the jamming system runs in the CPU hardware module and comprises the following modules:
the step command signal calculation generation module is used for sending the step command signal to the analog quantity signal sending module, and the analog quantity signal sending module is used for sending the analog quantity signal to an actuator controller of the airplane; the step command signal calculation and generation module can generate more than 60 kinds of step signals for selection through a human-computer interaction interface in the flight test process;
the analog quantity signal comparison and calculation module is used for transmitting the received analog quantity signal to the analog quantity signal comparison and calculation module, the analog quantity signal comparison and calculation module is used for comparing the received analog quantity signal with a CPU (central processing unit) module preprogrammed threshold, if the analog quantity signal received by the analog quantity signal comparison and calculation module is larger than the CPU module preprogrammed threshold, the CPU module sends an instruction of cutting off a step instruction signal to the safety monitoring cutting module, the safety monitoring cutting module cuts off the step instruction signal, and if the analog quantity signal received by the analog quantity signal comparison and calculation module is smaller than the CPU module preprogrammed threshold, the control surface jamming system continues to work;
the discrete magnitude signal generating module generates a discrete magnitude signal and sends the discrete magnitude signal to the discrete magnitude signal sending module, and the discrete magnitude signal sending module sends the discrete magnitude signal to the main flight control computer of the airplane;
discrete magnitude signal comparison calculation module, discrete magnitude signal receiving module sends the discrete magnitude signal that receives for discrete magnitude signal comparison calculation module, and discrete magnitude signal comparison calculation module carries out the comparison calculation with the preprogrammed threshold value of CPU module with the discrete magnitude signal that receives, if discrete magnitude signal that discrete magnitude signal receiving module received equals the preprogrammed threshold value of CPU module, safety monitoring excision module excision step instruction signal, if discrete magnitude signal that discrete magnitude signal receiving module received is not equal to the preprogrammed threshold value of CPU module, then rudder face card hinders system continuation work.
Step five: combined test of development of control surface jamming system and fly-by-wire fly-control iron bird stand
After the design of the control surface blocking system is completed, a joint test of the control surface blocking system and the airplane fly-by-wire control iron bird stand is carried out. And connecting the designed control surface jamming system with an airplane fly-by-wire system according to the cross-linking relation shown in the attached figure 2. And blocking of the ailerons, the rudder, the elevator and the spoiler is respectively completed.
The operation principle of the control surface jamming system is explained by taking the aileron jamming as an example. A tester selects the ailerons of the blocked control surface through a human-computer interaction interface, selects the blocking deflection degree, and then adds a step command signal. The control surface jamming system firstly sends a discrete quantity signal to a main flight control computer of the airplane fly-by-wire system, the version of the airplane fly-by-wire system is automatically switched to the version of the control surface jamming system, and then the jamming system sends a step instruction signal to an actuator controller, so that the aileron jamming reaches the skewness selected by a tester. After the flight test action is completed by an aircraft driver, a stop signal is selected through a human-computer interaction interface of the control surface jamming system, the control surface jamming system firstly finishes a step instruction signal, then a discrete quantity signal is immediately sent to a main flight control computer, and at the moment, the version of the telex flight control system is switched to a normal version of the telex flight control system from the version of the control surface jamming flight control system.
And finally, analyzing the test data, and verifying the effectiveness of the control surface jamming system. The aileron jamming results are shown in figure 3, the rudder jamming results are shown in figure 4, the elevator jamming results are shown in figure 6, and the spoiler jamming results are shown in figure 6. As can be seen from fig. 3, 4 and 5, after the jamming system adds the step command signal, the corresponding control surface can jam the skewness required by the tester, so as to meet the test requirements.
Claims (4)
1. The utility model provides a control surface jamming system for telex transportation class aircraft flight test which characterized in that, control surface jamming system includes CPU module, analog quantity signal transmission module, discrete magnitude signal receiving module, analog quantity receiving module, safety monitoring excision module, human-computer interaction interface, power module, jamming system's software module:
a CPU module: the CPU module can generate discrete magnitude signals, step instruction signals and pre-programmed threshold signals in real time;
the analog quantity signal sending module: the analog quantity signal sending module can output a step instruction signal in a voltage value range of-10V to 10V generated by the CPU module to an actuator controller of the airplane;
discrete magnitude signal transmission module: the discrete magnitude signal sending module can output the discrete magnitude signal generated by the CPU module to a main flight control computer of the airplane in real time;
discrete magnitude signal receiving module: the discrete magnitude signal receiving module can receive a discrete magnitude signal sent by an electric flight control computer of an airplane in real time and send the received discrete magnitude signal to the CPU module in real time;
analog quantity signal receiving module: the analog quantity signal receiving module can receive analog quantity signals sent by an actuator controller of the airplane in real time and transmit the signals received in real time to the CPU module;
safety monitoring excision module: the safety monitoring and cutting module has two functions, namely, the safety monitoring and cutting module can immediately and automatically cut off a step instruction signal sent by the CPU module after receiving the step instruction signal cutting signal sent by the CPU module; the safety monitoring and cutting module can cut off the step instruction signal sent by the CPU module immediately after receiving the step instruction signal cutting signal sent by the human-computer interaction interface;
a human-computer interaction interface: the driver can control the type and the blocking angle of the control surface to be blocked in real time through the human-computer interaction interface; step instruction signals can be added and normally ended in real time; the aircraft pilot can immediately send a step cutting instruction signal through the man-machine interaction interface;
a power supply module: the power supply module simultaneously supplies power to the CPU module, the analog quantity signal receiving module, the analog quantity signal transmitting module, the discrete quantity signal receiving module, the discrete quantity signal transmitting module, the safety monitoring and cutting module and the human-computer interaction interface;
software module of the control surface jamming system: the hardware module for supporting the control surface jamming system runs, the software module of the jamming system runs in the CPU hardware module and comprises the following modules:
the step command signal calculation generation module is used for sending the step command signal to the analog quantity signal sending module, and the analog quantity signal sending module is used for sending the analog quantity signal to an actuator controller of the airplane;
the analog quantity signal comparison and calculation module is used for transmitting the received analog quantity signal to the analog quantity signal comparison and calculation module, the analog quantity signal comparison and calculation module is used for comparing the received analog quantity signal with a CPU (central processing unit) module preprogrammed threshold, if the analog quantity signal received by the analog quantity signal comparison and calculation module is larger than the CPU module preprogrammed threshold, the CPU module sends an instruction of cutting off a step instruction signal to the safety monitoring cutting module, the safety monitoring cutting module cuts off the step instruction signal, and if the analog quantity signal received by the analog quantity signal comparison and calculation module is smaller than the CPU module preprogrammed threshold, the control surface jamming system continues to work;
the discrete magnitude signal generating module generates a discrete magnitude signal and sends the discrete magnitude signal to the discrete magnitude signal sending module, and the discrete magnitude signal sending module sends the discrete magnitude signal to the main flight control computer of the airplane;
discrete magnitude signal comparison calculation module, discrete magnitude signal receiving module sends the discrete magnitude signal that receives for discrete magnitude signal comparison calculation module, and discrete magnitude signal comparison calculation module carries out the comparison calculation with the preprogrammed threshold value of CPU module with the discrete magnitude signal that receives, if discrete magnitude signal that discrete magnitude signal receiving module received equals the preprogrammed threshold value of CPU module, safety monitoring excision module excision step instruction signal, if discrete magnitude signal that discrete magnitude signal receiving module received is not equal to the preprogrammed threshold value of CPU module, then rudder face card hinders system continuation work.
2. The control surface jamming system for the fly test of the fly-by-wire transport type aircraft according to claim 1, wherein the amplitude of the step command signal generated by the CPU module in real time can be adjusted in real time through the human-computer interaction interface in the operation process of the control surface jamming system.
3. The control surface jamming system for the fly test of the fly-by-wire transport type aircraft according to claim 1, wherein the step command signal calculation and generation module can generate more than 60 step signals for selection through a human-computer interaction interface in the fly test process.
4. The control surface jamming system for the fly test of the fly-by-wire transport type airplane according to claim 1, wherein the man-machine interaction interface can display the amplitude of the step command signal sent by the CPU module in real time through a display on the man-machine interaction interface.
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