CN103869707A - Semi-physical simulation test system applied to commercial aero engine control system - Google Patents
Semi-physical simulation test system applied to commercial aero engine control system Download PDFInfo
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Abstract
The invention relates to a semi-physical simulation test system applied to a commercial aero engine control system, which comprises a monitoring system, a real-time simulation and cockpit simulation system, a transmission system, a simulation system, a test object mounting system, a data acquisition system, an oil supply system and an electrical system, wherein the monitoring system sets test parameters and control equipment; the real-time simulation and cockpit simulation system calculates the running state of the commercial aero engine and outputs control signals according to the test parameters; the transmission system provides rotary speed signals according to control signals; the simulation system provides a working environment according to the control signals; the test object mounting system provides mounting space consistent with the real layout of the test object; the data acquisition system acquires working parameters of the test object and the test equipment and feeds the parameters to the monitoring system; the oil supply system is used for providing fuel oil; the electrical system is used for providing power and electrical connection; and the monitoring system also monitors working parameters and controls the test process.
Description
Technical field
The present invention relates to a kind of semi-physical simulation system, particularly, relate to a kind of semi-physical simulation system that is applied to commercial aviation engine control system.
Background technology
Modern aeroengine full powers limit digital and electronic controls (Full Authority Digital Engine Control:FADEC) have realized electric tune, complete the control function of engine body and the task with aircraft collaborative work by electronic controller.Engine control system is mainly made up of electronic controller, engine monitoring device, fuel oil parts, activation part, FADEC alternator, sensor and cable etc., has the complex control system of high reliability and high security simultaneously.
In order to meet the requirement for control system functional verification in seaworthiness clause FAR33.28-engine control system, just need to develop corresponding test macro the seaworthiness accordance of carrying out access control system.According to the development Experience of external commercial aviation engine control system, the exploitation proof procedure of control system need to experience digital emulation, hardware at loop simulation, semi-physical simulation and complete machine bench test drive etc.Wherein semi-physical simulation is an important ring, it is after the hardware development that has completed control system, Software for Design, and complete hardware after loop simulation test, the software and hardware system integration test that control system is carried out, whether function, performance and the interface etc. of verification system satisfy the demands, thereby reduce the risk of engine complete machine bench test.Therefore for the development of commercial aviation engine control system, control system semi-physical simulation system is absolutely necessary.
Domestic engine control system semi-physical simulation system is all for military aero-engine, and the semi-physical simulation system that is specifically designed to commercial aviation engine control system belongs to proposition first at home.Compared with military aero-engine control system semi-physical simulation system, commercial aviation engine control system semi-physical simulation system will adopt the model of commercial aviation engine and aircraft, EEC and EMU are carried out to combined debugging simultaneously, high security and the high reliability of more outstanding commercial aviation engine, for the Airworthiness Certification of commercial aviation engine provides test figure support.
Summary of the invention
In order to verify the serviceability of commercial aviation engine in the complete full envelope curve of operating mode, a kind of semi-physical simulation system that is applied to commercial aviation engine control system is proposed.This pilot system can be carried out closed test to engine control system and aircraft, engine mockup; control function and the performance of the control system of test under aircraft different conditions; can carry out dynamic parametric test and the dynamic analysis of engine control system simultaneously; the simulation of engine control system malfunction; the verification of correctness of engine control system under various restrictions and the border of transfiniting, protection and emergency rating, and the endurance test of engine control system annex etc.
Commercial aviation engine control system semi-physical simulation system, taking the large Bypass Ratio Turbofan Engine of commercialization as research object, for the static properties of engine control system and the test of dynamic property, the Static and dynamic performance of research and analysis engine control system, adaptability and the matching of control system when research and analysis engine is worked within the scope of full envelope curve.Comprise according to the semi-physical simulation system that is applied to commercial aviation engine control system of the present invention:
Supervisory system, it is configured to arrange test parameters opertaing device;
Real-time simulation and passenger cabin simulation system, it is configured to calculate the running status of described commercial aviation engine and export control signal according to described test parameters;
Kinematic train, it is configured to provide tach signal according to described control signal;
Simulation system, it is configured to provide working environment according to described control signal;
Subjects installation system, it is configured to the installing space that provides consistent with the true layout of subjects;
Number extraction system, it is configured to gather the running parameter of described subjects and described testing equipment and is fed back to described supervisory system;
Oil supply system, it is for providing fuel oil; And
Electrical system, its for power supply and electrical connection,
Wherein, described supervisory system is also configured to monitor described running parameter Control experiment process.
In one embodiment, described semi-physical simulation system also comprises fault injection system, the described control signal of described real-time simulation and passenger cabin simulation system enters described subjects through described fault injection system, to simulate the malfunction of described subjects.
In one embodiment, described real-time simulation and passenger cabin simulation system comprise aircraft, engine mockup, throttle lever and control knob, and described real-time simulation and cockpit display system are configured to move described aircraft, engine mockup and calculate the running status of described commercial aviation engine and export described control signal according to the operation of the angle of described throttle lever, control knob and from the data of described subjects.
In one embodiment, described simulation system comprises signal imitation system, lubricating oil simulation system, air pressure simulation system and vibration simulation system, wherein said signal imitation system is for analog sensor signal, described lubricating oil simulation system is for providing lubricating oil sensor required working environment, air pressure simulation system is for providing gas pressure sensor required working environment, and vibration simulation system is for providing vibration transducer required working environment.
More specifically, above-mentioned commercial aviation engine control system semi-physical simulation system consists of the following components:
Supervisory system, it is for operation control and the management of semi-physical simulation equipment, and the parameter of subjects and testing equipment monitors and shows management of test figure etc.;
Real-time simulation and passenger cabin simulation system, it is for the engine mockup and the model aircraft that meet real-time and accuracy requirement are provided, and the operation of simulated aircraft throttle lever and control knob and the cockpit display of aircraft etc.;
Oil supply system, it is for providing fuel oil parts required fuel oil, the back-pressure that can simulate the required load of activation part and be formed by fuel nozzle, fuel manifold simultaneously;
Fault injection system, it injects the hardware and software failure of electronic controller, engine monitoring device electric interfaces for realizing;
Kinematic train, it is used to fuel pump, alternator and speed probe test that required transmission input is provided;
Simulation system, it comprises signal imitation system, lubricating oil simulation system, air pressure simulation system, vibration simulation system, wherein signal imitation system is used for simulating various sensor signals, lubricating oil simulation system is for providing lubricating oil sensor required working environment, air pressure simulation system is for providing gas pressure sensor required working environment, and vibration simulation system is for providing vibration transducer required working environment;
Number extraction system, it is for collection and the measurement of subjects and testing equipment parameter;
Electrical system, its power supply for whole pilot system and electrical connection;
Subjects installation system, it is for providing the installation of the true layout of simulation test object.
Commercial aviation engine control system semi-physical simulation system, completes the preliminary works such as arranging of test parameters by supervisory system, whole process of the test is carried out to the supervision of parameter and the control of process simultaneously; After test parameters configures, real-time simulation and cockpit display system bring into operation aircraft, engine mockup, simultaneously according to the operation of Thrust Level Angel, control knob and from the data of subjects, calculate the running status of engine, output signal is controlled kinematic train, simulation system and subjects; Kinematic train, according to the control signal from real-time simulation and cockpit display system, provides subjects required rotating speed; Simulation system is according to the control signal from real-time simulation and cockpit display system, provide subjects required working environment, the output signal of wherein signal imitation system enters into subjects through fault injection system, to can simulate the various malfunctions that subjects may occur; Subjects is according to from the signal of real-time simulation and cockpit display system, under kinematic train and simulation system auxiliary, in different duties, and its state parameter fed back to real-time simulation and passenger cabin simulation system, formation closed-loop control.In whole process, the various parameters of number extraction system acquisition test object and testing equipment also feed back to supervisory system, guarantee the operation that semi-physical simulation system can be safe and reliable.
Whole process has been guaranteed the static properties of commercial aviation engine control system and the realization of Dynamic performance examination, for the Static and dynamic performance of research and analysis engine control system, when research and analysis engine is worked within the scope of full envelope curve, adaptability and the matching of control system provide platform.
Commercial aviation engine control system semi-physical simulation system adopts the mode of hardware-in-the-loop simulation to complete the checking of integrated function, performance and interface features of engine control system software and hardware, can find in time the problem existing in design, and effectively avoid the danger existing in the test run of engine complete machine.Commercial aviation engine control system semi-physical simulation system is requisite pilot system in engine control system performance history, guarantee correctness and the reliability of engine control system, effectively reduce the risk of complete machine test run, finally can effectively shorten the R&D cycle of engine control system, reduce the development cost of control system.
Above characteristic of the present invention and other characteristics are set forth embodiment part hereinafter clearly.
Brief description of the drawings
By reading the following detailed description to non-limiting example with reference to accompanying drawing, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 shows commercial aviation engine control system semi-physical simulation system chart.
In the drawings, run through different diagrams, same or similar Reference numeral represents same or analogous module (device).
Embodiment
Fig. 1 shows commercial aviation engine control system semi-physical simulation system chart, and this pilot system is made up of following system:
Supervisory system, this supervisory system has test parameters function is set, the demonstration of test figure and analytic function, and the monitoring function of testing equipment.Test parameters arranges function and comprises the importing of test configurations file and adjust function, the control parameter setting function of testing equipment etc.; The demonstration of test figure and analytic function comprise that the writing function of test figure and writing speed can arrange, the Presentation Function of test figure, the analytic function of test figure and the management function of test figure; The monitoring function of testing equipment provides the functions such as the interlock protection between control, in real time monitoring and each system to testing equipment;
Real-time simulation and passenger cabin simulation system, this enforcement emulation and passenger cabin simulation system have aircraft, engine real-time model operation function, and the analog functuion of airplane throttle bar, action button and cockpit display, this system provides the simulation of throttle lever device, this throttle lever can carry out programming Control, the simulation of aircraft cockpit action button is provided simultaneously, and these analog machines have the electrical specification identical with real equipment, and the simulation at Cockpit Display interface is provided simultaneously.Aircraft, engine real-time model can be according to given inputs, and the various parameters of engine are provided, as signal of the gas temperature in high pressure rotor rotating speed, rotational speed of lower pressure turbine rotor, each cross section and pressure, starting system and anti-pushing system etc.; Can simulate each duty of engine, as starting process, idling rating, climb mode, cruising condition, parking etc.; Can carry out dynamic simulation to various sensors, and there is the function that fault is injected;
Fault injection system, this fault injection system is realized hardware and the software pouring function of the fault of the electric interfaces to subjects, mainly comprises: the fault between electronic controller and throttle lever device is injected; Fault between electronic controller and aircraft cockpit action button is injected; The fault of electronic controller and Wing Newsletter bus is injected; Electronic controller and the fault of controlling between sensor are injected; Fault between electronic controller and feedback transducer is injected; Fault between electronic controller and electrohydraulic servo valve is injected; The fault of the electrical connection of solenoid valve is injected; Fault between mechanical hydraulic unit and airplane operation button is injected; Between electronic controller and engine monitoring device, the fault of communication bus is injected; Fault between engine device and monitoring sensor is injected;
Oil supply system, this oil supply system simulated aircraft fuel tank comes oily, provides fuel oil parts required fuel oil.This system forms by pressure oil tank, supercharge pump, vacuum plant, oil filter, when flow nozzle, load simulating device, heat-exchanger rig and various valve and pipeline, pressure oil tank can provide subjects required maximum fuel flow, can bear negative pressure simultaneously, having fuel oil temperature, oil level and positive/negative pressure measures and Displaying Meter, there is oil return, fuel-displaced, repairing and draining interface simultaneously, and at top of oil-tank, safety valve is set; The rated speed flow of supercharge pump is not less than the required maximum fuel flow of subjects, supercharge pump top hole pressure is greater than the inlet pressure of subjects and leaves certain nargin simultaneously, top hole pressure can be set according to test demand simultaneously, thereby meets the working range requirement of subjects; Vacuum plant can provide aircraft in high-altitude and the simulation of the idle extreme case of aircraft supercharge pump; Thereby the cleanliness that oil filter guarantees to enter fuel oil parts and activation part fuel oil are set; Return line is set and guarantees recycling of fuel oil; Heat-exchanger rig is set on return line, reduces the increase of the fuel oil temperature producing due to fuel oil circulation; Various valves are set on pipeline and guarantee safety and the maintenance of pilot system, each valve is equipped with Valve position switch, and position switch has switching value output and machinery instruction; The pipeline of valveless part has thermal expansion and overvoltage protection, is provided with means of deflation at the rational position place of pipeline simultaneously; On pipeline, be also provided with corresponding flow, pressure and temperature testing sensor, to oil supply system is monitored; External loading under load simulating device simulation activation part duty, when flow nozzle is used for simulating the back-pressure in fuel manifold.
Kinematic train, this kinematic train provides subjects required transmission input, mainly comprises: provide fuel pump required transmission; Provide FADEC alternator required transmission; Provide speed probe required transmission.This system adopts high-speed electric expreess locomotive directly to drive subjects, the output torque of high-speed electric expreess locomotive is monitored in real time simultaneously;
Signal imitation system, this signal imitation system provides the simulation of the required various input signals of subjects, mainly comprises: the simulation of thermal resistance signal; The simulation of thermocouple signal; The simulation of signals of rotational speed sensor; The simulation of gas pressure sensor signal; The simulation of vibration sensor signal; The simulation of anti-pushing system signal; The simulation of starting system signal; And the simulation of communication bus signal;
Lubricating oil simulation system, this lubricating oil simulation system provides test environment and provides lubricating oil lubricated for subjects for the various lubricating oil sensors that adopt on commercial aviation engine.This system is mainly made up of oil tank, lubricating oil oil feed pump, oily filter, dump pump, heat-exchange device, sensor and supporting hydraulic services.Oil tank is for the storage of lubricating oil, and lubricating oil is extracted out from oil tank by lubricating oil oil feed pump, filters and lube pipe by oil, enter into subjects, then enter into heat-exchange device by dump pump, finally get back in oil tank, thus the closed circuit of a lubricating oil of formation.Various lubricating oil sensors will be installed on oil tank, oil filter and oil feed line, and these sensor signals are sent in EMU and monitor the most at last;
Air pressure simulation system, the gaseous tension of this air pressure simulation system on can each cross section of simulated engine, and according to the air of test demand output authorised pressure, flow.This system is made up of lower than the negative pressure air system two large divisions of standard atmospheric pressure positive pressure air system and the output of exporting higher than standard atmospheric pressure.Positive pressure air system is mainly made up of air pump, air strainer, stable-pressure device, electric pneumatic converter, air flow amplifier, gas safety valve, pipeline and valve; Negative pressure air system is made up of vacuum pump, vacuum buffer device, variable valve, electric pneumatic converter, pipeline and valve;
Vibration simulation system, this vibration simulation system provides working environment for vibration transducer.This system can be carried out closed-loop control, and sinusoidal vibration, random vibration etc. can be provided, and also can provide vibration environment according to given vibration collection of illustrative plates simultaneously.This system is mainly made up of shaking table, data acquisition, signal condition and control module, steering order is sent to signal condition module by control module, form the driving signal of shaking table, data acquisition module is responsible for measurement and the collection of shaking table parameter simultaneously, and shaking table correlation parameter is sent to control module for controlling, thereby form shaking table closed-loop control, and finally simulate the working environment of vibration transducer;
Number extraction system, this is counted extraction system and can gather the Monitoring Data of testing equipment and subjects.This system adopts modular design, taking intelligent acquisition module as basis, taking real-time industrial ethernet as core, adopt distributed capture technology, the subjects in semi-physical simulation system and testing equipment are carried out reliably, specification, measured and monitor accurately.This system is mainly by the intelligent acquisition module of all types of sensors, and the composition such as real-time industrial ethernet module;
Electrical system, this electrical system can provide required power supply for subjects and testing equipment, and electrical connection required in pilot system is provided, and possesses the defencive functions such as overload, phase shortage, short circuit simultaneously.This system is mainly made up of cable, relay box, power converter, protective device etc.;
Subjects installation system, this subjects installation system for subjects provide simulation its real space layout installation site, the pipe-line layout between its intermediate fuel oil parts is similar to the true pipe-line layout of engine.This installation system adopts tower structure, has the leakage of oil protective device of fuel oil parts, is convenient to installation, the debugging of subjects simultaneously and safeguards.
Whole process has been guaranteed the static properties of commercial aviation engine control system and the realization of Dynamic performance examination, for the Static and dynamic performance of research and analysis engine control system, when research and analysis engine is worked within the scope of full envelope curve, adaptability and the matching of control system provide platform.
Commercial aviation engine control system semi-physical simulation system adopts the mode of hardware-in-the-loop simulation to complete the checking of integrated function, performance and interface features of engine control system software and hardware, can find in time the problem existing in design, and effectively avoid the danger existing in the test run of engine complete machine.Commercial aviation engine control system semi-physical simulation system is requisite pilot system in engine control system performance history, guarantee correctness and the reliability of engine control system, effectively reduce the risk of complete machine test run, finally can effectively shorten the R&D cycle of engine control system, reduce the development cost of control system.
Those skilled in the art will be understood that above-described embodiment is all exemplary and nonrestrictive.The different technologies feature occurring in different embodiment can combine, to obtain beneficial effect.Those skilled in the art, on the basis of research accompanying drawing, instructions and claims, will be understood that and realize the embodiment of other variations of disclosed embodiment.In claims, term " comprises " does not get rid of other devices or step; " one " does not get rid of multiple; Term " first ", " second " are for indicating title but not for representing any specific order.Any Reference numeral in claim all should not be understood to the restriction to protection domain.Some technical characterictic appears in different dependent claims and does not mean that and these technical characterictics can not be combined to obtain beneficial effect.This patent covers literal all devices and the product of going up or falling into the scope of claims in doctrine of equivalents.
Claims (4)
1. a semi-physical simulation system that is applied to commercial aviation engine control system, comprising:
Supervisory system, it is configured to arrange test parameters opertaing device;
Real-time simulation and passenger cabin simulation system, it is configured to calculate the running status of described commercial aviation engine and export control signal according to described test parameters;
Kinematic train, it is configured to provide tach signal according to described control signal;
Simulation system, it is configured to provide working environment according to described control signal;
Subjects installation system, it is configured to the installing space that provides consistent with the true layout of subjects;
Number extraction system, it is configured to gather the running parameter of described subjects and described testing equipment and is fed back to described supervisory system;
Oil supply system, it is for providing fuel oil; And
Electrical system, its for power supply and electrical connection,
Wherein, described supervisory system is also configured to monitor described running parameter Control experiment process.
2. semi-physical simulation system according to claim 1, it is characterized in that, described semi-physical simulation system also comprises fault injection system, the described control signal of described real-time simulation and passenger cabin simulation system enters described subjects through described fault injection system, to simulate the malfunction of described subjects.
3. semi-physical simulation system according to claim 1, it is characterized in that, described real-time simulation and passenger cabin simulation system comprise aircraft, engine mockup, throttle lever and control knob, and described real-time simulation and cockpit display system are configured to move described aircraft, engine mockup and calculate the running status of described commercial aviation engine and export described control signal according to the operation of the angle of described throttle lever, control knob and from the data of described subjects.
4. semi-physical simulation system according to claim 1, it is characterized in that, described simulation system comprises signal imitation system, lubricating oil simulation system, air pressure simulation system and vibration simulation system, wherein said signal imitation system is for analog sensor signal, described lubricating oil simulation system is for providing lubricating oil sensor required working environment, air pressure simulation system is for providing gas pressure sensor required working environment, and vibration simulation system is for providing vibration transducer required working environment.
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