CN105547703B - A kind of test bay state point intake simulation adjusting method - Google Patents
A kind of test bay state point intake simulation adjusting method Download PDFInfo
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- G—PHYSICS
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of test bay state point intake simulation adjusting method, comprise the following steps：The inlet condition of current state point includes inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, the inlet condition of NextState includes inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, according to the relation between the inlet total pressure and inlet total temperature in the inlet total pressure and the inlet condition of inlet total temperature and NextState in the inlet condition of current state point, Induction air flow and fuel quantity are adjusted, the inlet condition for completing inlet condition to the NextState point of current state point is adjusted.Compared with prior art, test bay state point analog regulation method provided by the invention, the engine test time is shortened, reduces experimentation cost, improve test efficiency.
Description
Technical field
The present invention relates to a kind of test bay state point intake simulation adjusting method.
Background technology
At present, during engine test, it is desirable to one group of inlet condition of state point reaches setting value and stabilization simultaneously after, record
Its performance and parameter examine its performance, after the examination of the performance of current state point and the record of parameter or performance is completed, root
Needed according to task, by the inlet condition regulation of current state point to the inlet condition of NextState point, treat that NextState point reaches
After setting value and stabilization, record its performance and parameter or examine its performance, by that analogy, until off-test, and for realizing
The inlet condition of current state point typically uses regulation Induction air flow and fuel to the regulation of the inlet condition of NextState
How amount, still, for the relation between the different inlet condition of current state point and the inlet condition of NextState, adjusted
Induction air flow and fuel quantity, there is presently no the adjusting method of maturation, this causes to add simulated time, improves experiment
Cost.
The content of the invention
The defects of the invention aims to overcome above-mentioned prior art to exist and short, the examination that provides a kind of test period
Test that cost is low, the high test bay state point intake simulation adjusting method of test efficiency.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of test bay state point intake simulation adjusting method, comprises the following steps：The inlet condition bag of current state point
Include inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, the inlet condition bag of NextState
Include inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, the air inlet according to current state point
Pass between inlet total pressure and inlet total temperature in parameter and the inlet total pressure and inlet total temperature in the inlet condition of NextState
System, Induction air flow and fuel quantity are adjusted, the inlet condition for completing inlet condition to the NextState point of current state point is adjusted
Section.
The inlet total pressure of current state point is more than the inlet total pressure of NextState, under the inlet total temperature of current state point is more than
During the inlet total temperature of one state, fuel quantity is reduced first, secondly reduces Induction air flow.
The inlet total pressure of current state point is more than the inlet total pressure of NextState, under the inlet total temperature of current state point is equal to
During the inlet total temperature of one state, while reduce Induction air flow, fuel quantity.
The inlet total pressure of current state point is more than the inlet total pressure of NextState, under the inlet total temperature of current state point is less than
During the inlet total temperature of one state, increase fuel quantity first, secondly reduce Induction air flow.
The inlet total pressure of current state point is equal to the inlet total pressure of NextState, under the inlet total temperature of current state point is more than
During the inlet total temperature of one state, fuel quantity is reduced first, secondly increases Induction air flow.
The inlet total pressure of current state point is equal to the inlet total pressure of NextState, under the inlet total temperature of current state point is less than
During the inlet total temperature of one state, increase fuel quantity first, secondly reduce Induction air flow.
The inlet total pressure of current state point is less than the inlet total pressure of NextState, under the inlet total temperature of current state point is more than
During the inlet total temperature of one state, fuel quantity is reduced first, secondly increases Induction air flow.
The inlet total pressure of current state point is less than the inlet total pressure of NextState, under the inlet total temperature of current state point is equal to
During the inlet total temperature of one state, while increase Induction air flow, fuel quantity.
The inlet total pressure of current state point is less than the inlet total pressure of NextState, under the inlet total temperature of current state point is less than
During the inlet total temperature of one state, while increase Induction air flow, fuel quantity.
According to gas handling system status point parameter equation group：
qmi=qma+qmo+qmj
pti=pt2+Δpt2
In the gas handling system status point parameter equation group, qmiFor charge flow rate, qmaFor Induction air flow, qmoTo mend
Oxygen flow, qmjFor heater fuel supply flow rate, ptiFor inlet total pressure, AiFor intake area, TtiFor inlet total temperature, q (λi) be
Calculate section Ventialtion rate, Tti0For current inlet total temperature, η is efficiency of combustion, QjFor the heater fuel feeding latent heat of vaporization, α is
Overfire air coefficient, CpFor combustion gas specific heat at constant pressure, CvaFor air control valve discharge coefficient, PsaFor bleed pressure, pt2Adjusted for air
Valve downstream pressure is saved, γ is air quality proportion, T0aFor air source temperature, Δ Pt2For duct pressure loss, TsaFor sky before mixing
Temperature degree, CpaFor pressurization by compressed air specific heat, TsoFor oxygenating temperature, C before mixingpoFor oxygen specific heat at constant pressure, Q0For heater fuel feeding vapour
Change latent heat,For chemically correct fuel, the inlet condition for obtaining inlet condition for current state point to NextState point enters
The regulated quantity of gas air mass flow and fuel quantity.
In the gas handling system status point parameter equation group, it is known that the Induction air flow of current state point, oxygen supplying flow,
Heater fuel supply flow rate, inlet total pressure, inlet total temperature, current inlet total temperature, overfire air coefficient, and the air inlet of NextState point
Stagnation pressure and inlet total temperature, solve the inlet air of NextState point corresponding with the inlet total pressure and inlet total temperature of NextState point
Flow, oxygen supplying flow, heater fuel supply flow rate.
, can be by formula in the gas handling system status point parameter equation groupReplace
It is changed to
In the gas handling system status point parameter equation group,
In the gas handling system status point parameter equation group, the inlet total temperature is the temperature after burning, described when advance
Gas stagnation temperature is temperature before further burning.
The test bay state point intake simulation adjusting method can be used for direct-connected test bay.
The test bay state point intake simulation adjusting method can be used for engine condition point intake simulation.
The invention has the advantages that compared with prior art, test bay state point analog regulation side provided by the invention
Method, the engine test time is shortened, reduce experimentation cost, improve test efficiency.
Embodiment
A kind of test bay state point intake simulation adjusting method, comprises the following steps：The inlet condition bag of current state point
Include inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, the inlet condition bag of NextState
Include inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, the air inlet according to current state point
Pass between inlet total pressure and inlet total temperature in parameter and the inlet total pressure and inlet total temperature in the inlet condition of NextState
System, Induction air flow and fuel quantity are adjusted, the inlet condition for completing inlet condition to the NextState point of current state point is adjusted
Section.
The inlet total pressure of current state point is more than the inlet total pressure of NextState, under the inlet total temperature of current state point is more than
During the inlet total temperature of one state, fuel quantity is reduced first, secondly reduces Induction air flow.
The inlet total pressure of current state point is more than the inlet total pressure of NextState, under the inlet total temperature of current state point is equal to
During the inlet total temperature of one state, while reduce Induction air flow, fuel quantity.
The inlet total pressure of current state point is more than the inlet total pressure of NextState, under the inlet total temperature of current state point is less than
During the inlet total temperature of one state, increase fuel quantity first, secondly reduce Induction air flow.
The inlet total pressure of current state point is equal to the inlet total pressure of NextState, under the inlet total temperature of current state point is more than
During the inlet total temperature of one state, fuel quantity is reduced first, secondly increases Induction air flow.
The inlet total pressure of current state point is equal to the inlet total pressure of NextState, under the inlet total temperature of current state point is less than
During the inlet total temperature of one state, increase fuel quantity first, secondly reduce Induction air flow.
The inlet total pressure of current state point is less than the inlet total pressure of NextState, under the inlet total temperature of current state point is more than
During the inlet total temperature of one state, fuel quantity is reduced first, secondly increases Induction air flow.
The inlet total pressure of current state point is less than the inlet total pressure of NextState, under the inlet total temperature of current state point is equal to
During the inlet total temperature of one state, while increase Induction air flow, fuel quantity.
The inlet total pressure of current state point is less than the inlet total pressure of NextState, under the inlet total temperature of current state point is less than
During the inlet total temperature of one state, while increase Induction air flow, fuel quantity.
According to gas handling system status point parameter equation group：
qmi=qma+qmo+qmj
pti=pt2+Δpt2
In the gas handling system status point parameter equation group, qmiFor charge flow rate, qmaFor Induction air flow, qmoTo mend
Oxygen flow, qmjFor heater fuel supply flow rate, ptiFor inlet total pressure, AiFor intake area, TtiFor inlet total temperature, q (λi) be
Calculate section Ventialtion rate, Tti0For current inlet total temperature, η is efficiency of combustion, QjFor the heater fuel feeding latent heat of vaporization, α is
Overfire air coefficient, CpFor combustion gas specific heat at constant pressure, CvaFor air control valve discharge coefficient, PsaFor bleed pressure, pt2Adjusted for air
Valve downstream pressure is saved, γ is air quality proportion,For air source temperature, Δ Pt2For duct pressure loss, TsaFor sky before mixing
Temperature degree, CpaFor pressurization by compressed air specific heat, TsoFor oxygenating temperature, C before mixingpoFor oxygen specific heat at constant pressure, Q0For heater fuel feeding vapour
Change latent heat,For chemically correct fuel, the inlet condition for obtaining inlet condition for current state point to NextState point enters
The regulated quantity of gas air mass flow and fuel quantity.
In the gas handling system status point parameter equation group, it is known that the Induction air flow of current state point, oxygen supplying flow,
Heater fuel supply flow rate, inlet total pressure, inlet total temperature, current inlet total temperature, overfire air coefficient, and the air inlet of NextState point
Stagnation pressure and inlet total temperature, solve the inlet air of NextState point corresponding with the inlet total pressure and inlet total temperature of NextState point
Flow, oxygen supplying flow, heater fuel supply flow rate,
, can be by formula in the gas handling system status point parameter equation group
Replace with
In the gas handling system status point parameter equation group,
In the gas handling system status point parameter equation group, the inlet total temperature is the temperature after burning, described when advance
Gas stagnation temperature is temperature before further burning.
The test bay state point intake simulation adjusting method can be used for direct-connected test bay.
The test bay state point intake simulation adjusting method can be used for engine condition point intake simulation.
Finally illustrate, above example is merely to illustrate technical scheme and unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those of skill in the art that can be to the technology of the present invention
Scheme is modified and equivalent substitute, and without departing from the objective and scope of technical solution of the present invention, it all should cover in the present invention
Right among.
Claims (14)
1. a kind of test bay state point intake simulation adjusting method, it is characterised in that comprise the following steps：Current state point enters
Gas parameter includes inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, and NextState enters
Gas parameter includes inlet total pressure, Induction air flow, oxygen supplying flow, inlet total temperature, engine oil oil mass, according to current state
The inlet total pressure and inlet total temperature in inlet total pressure and the inlet condition of inlet total temperature and NextState in the inlet condition of point
Between relation, adjust Induction air flow and fuel quantity, complete inlet condition the entering to NextState point of current state point
Gas parameter regulation；
According to gas handling system status point parameter equation group：
qmi=qma+qmo+qmj
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In the gas handling system status point parameter equation group, qmiFor charge flow rate, qmaFor Induction air flow, qmoFor oxygenating stream
Amount, qmjFor heater fuel supply flow rate, ptiFor inlet total pressure, AiFor intake area, TtiFor inlet total temperature, q (λi) it is to calculate
Section Ventialtion rate, Tti0For current inlet total temperature, η is efficiency of combustion, QjFor the heater fuel feeding latent heat of vaporization, α is overheat
Air coefficient, CpFor combustion gas specific heat at constant pressure, CvaFor air control valve discharge coefficient, PsaFor bleed pressure, pt2For air control valve
Downstream pressure, γ are air quality proportion, T0aFor air source temperature, Δ Pt2For duct pressure loss, TsaFor Air Temperature before mixing
Degree, CpaFor pressurization by compressed air specific heat, TsoFor oxygenating temperature, C before mixingpoFor oxygen specific heat at constant pressure, Q0It is latent for the vaporization of heater fuel feeding
Heat,For chemically correct fuel, the air inlet for obtaining inlet condition for current state point to the inlet condition of NextState point is empty
The regulated quantity of throughput and fuel quantity.
2. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is more than the inlet total pressure of NextState, when the inlet total temperature of current state point is more than the inlet total temperature of NextState,
Fuel quantity is reduced first, secondly reduces Induction air flow.
3. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is more than the inlet total pressure of NextState, when the inlet total temperature of current state point is equal to the inlet total temperature of NextState,
Reduce Induction air flow, fuel quantity simultaneously.
4. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is more than the inlet total pressure of NextState, when the inlet total temperature of current state point is less than the inlet total temperature of NextState,
Increase fuel quantity first, secondly reduce Induction air flow.
5. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is equal to the inlet total pressure of NextState, when the inlet total temperature of current state point is more than the inlet total temperature of NextState,
Fuel quantity is reduced first, secondly increases Induction air flow.
6. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is equal to the inlet total pressure of NextState, when the inlet total temperature of current state point is less than the inlet total temperature of NextState,
Increase fuel quantity first, secondly reduce Induction air flow.
7. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is less than the inlet total pressure of NextState, when the inlet total temperature of current state point is more than the inlet total temperature of NextState,
Fuel quantity is reduced first, secondly increases Induction air flow.
8. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is less than the inlet total pressure of NextState, when the inlet total temperature of current state point is equal to the inlet total temperature of NextState,
Increase Induction air flow, fuel quantity simultaneously.
9. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that current state point
Inlet total pressure is less than the inlet total pressure of NextState, when the inlet total temperature of current state point is less than the inlet total temperature of NextState,
Increase Induction air flow, fuel quantity simultaneously.
10. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that the air inlet system
In status point parameter equation group of uniting, by formulaReplace with
11. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that the air inlet system
In status point parameter equation group of uniting,
12. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that the air inlet system
In status point parameter equation group of uniting, the inlet total temperature is the temperature after burning, and the current inlet total temperature is further burning
Preceding temperature.
13. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that the test bay
State point intake simulation adjusting method can be used for direct-connected test bay.
14. test bay state point intake simulation adjusting method according to claim 1, it is characterised in that the test bay
State point intake simulation adjusting method can be used for engine condition point intake simulation.
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| Publication number | Priority date | Publication date | Assignee | Title |
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