CN109684698A - A kind of plane hydraulic system modeling power optimization method based on engineering simulator - Google Patents
A kind of plane hydraulic system modeling power optimization method based on engineering simulator Download PDFInfo
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- CN109684698A CN109684698A CN201811535779.1A CN201811535779A CN109684698A CN 109684698 A CN109684698 A CN 109684698A CN 201811535779 A CN201811535779 A CN 201811535779A CN 109684698 A CN109684698 A CN 109684698A
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Abstract
The invention belongs to aviation hydraulic system fields, are related to a kind of plane hydraulic system modeling power optimization method based on engineering simulator.Hydraulic system power computation model is embedded in engineering simulator by this method, and system relevant to hydraulic system synchronizes design, the engineering simulator flight planing surface all according to unit operation instruction simulation aircraft, hydraulic system power computation model resolves the power demand of each user of hydraulic system simultaneously and dynamically with higher precision, and is iterated Synthetical Optimization according to power accordance index；It is long that the present invention solves conventional airplane hydraulic system power design method iteration cycle, the low problem of precision, to plane hydraulic system system power designs, shorten the iteration cycle of plane hydraulic system power designs, improve design accuracy, testing expenses have been saved, can be widely applied to plane hydraulic system power designs.
Description
Technical field
The invention belongs to plane hydraulic system design fields, are related to a kind of airplane hydraulic pressure system based on engineering simulator
System modeling power optimization method.
Background technique
Plane hydraulic system power designs are closely related with hydraulic system user working status, and hydraulic system user job
State is changeable and various, and existing airplane hydraulic pressure system power design approach is static, discontinuous, non real-time, iteration cycle
Long, precision is low, low with user-association degree, therefore not can accurately reflect the demand of custom system, is easy to cause design of Hydraulic System
Change occurs and repeats to test, and then development cost is caused to increase, the lead time extends.
Summary of the invention
The object of the present invention is to provide a kind of plane hydraulic system modeling power optimization method based on engineering simulator,
It is long to solve conventional airplane hydraulic system power design method iteration cycle, the low technical problem of precision, to plane hydraulic system
It is power designs, shortens the iteration cycle of plane hydraulic system power designs, improve design accuracy, saves testing expenses.
To solve this technical problem, the technical scheme is that
A kind of plane hydraulic system modeling power optimization method based on engineering simulator, the plane hydraulic system function
Rate modeling optimization method carries out hydraulic system power design in the schematic design phase of airplane design, and by the hydraulic system of foundation
Power calculation model insertion engineering simulator system relevant to hydraulic system synchronizes design, and according to engineering simulator mould
Quasi- result carries out debugging optimization to hydraulic system power computation model.
The plane hydraulic system modeling power optimization method comprises the steps of:
Step 1: carrying out hydraulic system power design in the schematic design phase, and establish hydraulic system power computation model；
Step 2: hydraulic system power computation model is embedded in engineering simulator environment；
Step 3: keeping hydraulic system power model relevant to hydraulic system in simulator in engineering simulator environment
System model is crosslinked, Signal Matching；
Step 4: the signal that incorporation engineering simulator exports when working, obtains hydraulic system power parameter by emulation, it is right
Hydraulic system power index is adjusted, optimizes；
Step 5: the hydraulic system power computation model parameter after output optimization, for actual airplane hydraulic system and attached
The design of part, and hydraulic system model library is updated.
The mode described in step 1 for establishing hydraulic system power computation model are as follows: chosen in hydraulic system model library
Existing model, and cut and do adaptability change.
The mode described in step 1 for establishing hydraulic system power computation model is according to hydraulic system and related accessories
Performance parameter establish new model.
The relevant system model of hydraulic system described in step 3 specifically: model aircraft, engine mockup, hydraulic energy
Source user model.
The emulation mode of hydraulic system power parameter described in step 4 specifically: under simulation aircraft whole envelope state
Hydraulic system power demand.
The invention has the advantages that the plane hydraulic system modeling power optimization method of the invention based on engineering simulator mentions
The high precision of hydraulic system power design, shortens the design cycle, saves design cost.Solves existing hydraulic system
The problems such as power design approach precision is low, and design cost caused by iteration cycle is long is high.
Detailed description of the invention
Fig. 1 is the principle of the present invention schematic diagram；
The flow chart of Fig. 2 the method for the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples:
The basic principle schematic of the method for the present invention is as shown in Figure 1, a kind of plane hydraulic system based on engineering simulator
Modeling power optimization method carries out hydraulic system power design in the schematic design phase of airplane design, and this method is will be hydraulic
System power computation model is implanted into engineering simulator, and engineering simulator is cutd open according to all flight of unit operation instruction simulation aircraft
Face, simulator generates hydraulic actuator speed in real time, hydraulic pump control instruction, engine speed, flies during simulated flight
The relevant data of the plane hydraulic systems such as machine state, hydraulic actuator work order, above-mentioned data have real-time, dynamic, precision
Height, and it is similar to actual airplane data height the features such as, wherein data relevant to hydraulic system power calculating are converted to liquid
The input of system power computation model is pressed, hydraulic system power computation model carries out real-time resolving to the data of input, after resolving
Hydraulic system power accordance index can be obtained, according to the index to hydraulic system power computation model relevant parameter and hydraulic
System user system power demand relevant parameter carries out Synthetical Optimization, and the parameter after Synthetical Optimization can be again according to upper
It states process and iteration verifying is rapidly completed, can get hydraulic system power design and hydraulic system user after successive ignition designs
The optimized parameter of power designs.
The flow chart of the method for the present invention is as shown in Fig. 2, specific implementation step is as follows:
1, it selects in hydraulic system model library or with reference to existing same type plane hydraulic system energy resource system, hydraulic
The system-level parameters such as custom system, control logic, the parameter of the related accessories such as pump, valve, accumulator are used in the schematic design phase
MATLAB/Simulink establishes hydraulic system power computation model.
2, hydraulic system power computation model is embedded in engineering simulator software environment, by flying in simulator model library
The status signals such as machine Mach number, height, engine speed, flight control system aileron, spoiler, rudder, elevator, level are stable
The actuator related output signal such as face, hatch door actuator related output signal, undercarriage control, brake output signal, control refer to
Order etc. carries out Signal Matching as the input that hydraulic system power calculates Simulink model, and debugging model program ensures in mould
It is correctly run in quasi- device.
3, according to flight program task, opertions engineering simulator, according to all flight of unit operation instruction simulation aircraft
Section, simulator generates in real time during simulated flight hydraulic actuator speed, hydraulic pump control instruction, engine turn
The relevant data of the plane hydraulic systems such as speed, aircraft state, hydraulic actuator work order are calculated as hydraulic system power
The input of Simulink model carries out model interface crosslinking, Signal Matching.
4, real-time, dynamic, precision highland calculates the correlated performance accordance index parameter of hydraulic system power calculating, root
According to the index to hydraulic system power computation model relevant parameter and hydraulic system custom system power demand relevant parameter into
Row adjustment, Synthetical Optimization.Iteration verifying, warp can be rapidly completed in parameter after Synthetical Optimization again according to above-mentioned process
It can get the optimized parameter that hydraulic system power design and hydraulic system user power design after crossing multiple Iterative Design.
5, the hydraulic system model power after output integrated optimization design calculates related optimized parameter, is used for actual airplane liquid
Press the property of the attachmentes such as system pressure rank, remaining, flow, control logic etc. and engine pump, electrodynamic pump, fuel tank, accumulator, valve
It can index Design.And hydraulic system model library is updated.
Method of the invention improves design accuracy, and engineering simulator can be truly reflected between all hydraulic actuator
Composite move relationship, to most more realistically reflect the power demand of custom system.When extraction power limit or other originals
Because causing hydraulic power by limited time, needs to study the demand power of actuating system, utilize flight control system simulator at this time
The associative simulation of hydraulic system, actuating system, control law, flight quality can be achieved, to find the equalization point of each system design.
Compared to the more flight profile, mission profiles of test-bed engineering simulator analog, the achievable pilot project that not can be carried out in the past, such as
Aircraft utilization emergency hydraulic power source etc., to keep hydraulic system power design accuracy higher.This method shortens the design cycle, and saving takes
With.
Claims (5)
1. a kind of plane hydraulic system modeling power optimization method based on engineering simulator, it is characterised in that: the modeling
Optimization method comprises the steps of:
Step 1: carrying out hydraulic system power design in the schematic design phase, and establish hydraulic system power computation model；
Step 2: hydraulic system power computation model is embedded in engineering simulator environment；
Step 3: making hydraulic system power model system relevant to hydraulic system in simulator in engineering simulator environment
Model is crosslinked, Signal Matching；
Step 4: the signal that incorporation engineering simulator exports when working, obtains hydraulic system power parameter by emulation, to hydraulic
System power index is adjusted, optimizes；
Step 5: the hydraulic system power computation model parameter after output optimization, for actual airplane hydraulic system and attachment
Design, and hydraulic system model library is updated.
2. modeling optimization method according to claim 1, it is characterised in that: described in step 1 to establish hydraulic system function
The mode of rate computation model are as follows: choose existing model in hydraulic system model library, and carry out adaptability change.
3. modeling optimization method according to claim 1, it is characterised in that: described in step 1 to establish hydraulic system function
The mode of rate computation model establishes new model for the performance parameter with reference to existing hydraulic system and related accessories.
4. modeling optimization method according to claim 1, it is characterised in that: hydraulic system described in step 3 is relevant
System model specifically: model aircraft, engine mockup, hydraulic energy source user model.
5. modeling optimization method according to claim 1, it is characterised in that: the ginseng of hydraulic system power described in step 4
Several emulation mode specifically: the hydraulic system power demand under simulation aircraft whole envelope state.
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