CN105608280B - Gas generator wizard-like design method based on template - Google Patents
Gas generator wizard-like design method based on template Download PDFInfo
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- CN105608280B CN105608280B CN201511027284.4A CN201511027284A CN105608280B CN 105608280 B CN105608280 B CN 105608280B CN 201511027284 A CN201511027284 A CN 201511027284A CN 105608280 B CN105608280 B CN 105608280B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/36—Circuit design at the analogue level
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Abstract
The gas generator wizard-like design method based on template that the invention discloses a kind of, including 1) determine that the technology of overall assignment requires；2) Outline Design：The technology of overall assignment is required to be analyzed and understood, primary election main design parameters are required according to technology, and carries out preliminary performance indicator parameter and calculates；3) part design, each component part to forming gas generator respectively carry out parameter model, and the present invention passes through wizard-like design method and cures design experiences, shortens design time, reduces design problem；By parametric modeling, simplified model changes process, optimization is allowed to be possibly realized；It based on stencil design, makes design objective typing, is more convenient selection and design.
Description
Technical field
The invention belongs to aviation aerospace Push Technology research categories, are related to a kind of gas generator wizard-like based on template
Design method.
Background technology
Single group member gas generator is one kind in microminiature liquid-propellant rocket engine, and the rail control for being usually used in aircraft is dynamic
Force system.Requirement according to totality to single group member gas generator and the component primarily determined, in rational technical conditions and limit
Start the system design of gas generator in range processed.
Certain design discipline is designed with due to gas generator, selected parameter is various in addition, gas generator design
Worker is frequently necessary to that a large amount of energy is spent to carry out busy drawing and calculating, by optimum choice, iterates and tests
It verifies to continuously improve component characteristic and system performance, to meet design requirement, completes the final design of gas generator.Combustion gas
Generator Design and the process that master-plan is often that Chong Die, alternation sum is repeated.
In previous single group member gas generator design process, there is the designer couple of abundant professional standing and experience
Entire design process plays very important effect.And it will appear some unnecessary mistakes in actual operation.Current
Design scheme flow path efficiency is low, and model modification is difficult, time-consuming.And designing quality varies with each individual, and does not ensure very much.So passing
The design method of system is threshold height, and efficiency is low, and quality is also unstable.
Invention content
The purpose of the present invention is to provide a kind of suitable single group member gas generator design methods, overcome existing design method
Deficiency.
Technical solution of the invention is：The present invention is based on the single group member gas generator wizard-like design sides of template
Method is characterized in that：Include the following steps：
1) the technology requirement of overall assignment is determined
2) Outline Design：The technology of overall assignment is required to be analyzed and understood, requires primary election mainly to set according to technology
Parameter is counted, and carries out preliminary performance indicator parameter and calculates, specially：
2.1)：According to the gas generator the key technical indexes of general requirement, the macrostructure ginseng of gas generator is determined
Number；
2.2) this secondary design is selected in the gas generator performance parameter having been formed according to the parameter determined in 2.1)
Gas generator decomposition chamber parameter；
2.1) and 2.2) 2.3) thermodynamic computing is carried out according to the parameter determined in, provides the main performance ginseng of gas generator
Number；
2.4) if the Specifeca tion speeification obtained in step 2.3) can meet the technology requirement of overall assignment, carry out down
One step designs, otherwise the parameter in set-up procedure 2.1-2.2, recalculates；
2.5) by step 2.1), 2.2) and 2.3) in the parameter for meeting general technical requirement that finally determines be aggregated into table；
3) part design
3.1) parameter model：Each component part to forming gas generator carries out parameter model respectively；Parametrization is built
When mould, by the key design parameter variable design of gas generator, numerous design ginsengs in the gas generator model having been formed are extracted
Major constraints relationship between number, and cured in a template；Number is provided for optimization design and variable driven three-dimensional modeling
According to interface and technical support；
3.2) according in Outline Design with assemble relevant parameter, to related to assembly in each parameters of operating part mould template
Parameter be adjusted, ensure the reliable assembling of each component；
3.3) relative parameters setting in being arranged according to summary and previous ripe design experiences, determine each parameters of operating part template
In remaining variable parameter value, complete the detailed design of each component；
4) simulating, verifying.
The template of above-mentioned single group member gas generator is mainly made of head design template, decomposition chamber design template and jet pipe
Design template forms.
Above-mentioned head design template includes that ejector filler design subtemplate, injection into orbit pipe design subtemplate and head supplementary structure are set
Count subtemplate.
Above-mentioned jet pipe composition design template includes conical nozzle template, double-circular nozzle template, unconventional nozzle template.
Compared with prior art, the present invention advantage is：
1, the present invention carries out parametric modeling, supports gas generator Parametric drive modeling, simplified model modification
Process allows optimization to be possibly realized, and provides technical support for the emulation of the Parametric designing result value in later stage.The design method with
Design variable is bridge, has linked up the design of gas generator modular construction and performance simulation, has realized to " scheme-structure-performance
The whole parametrization linking of emulation ".It is designed based on templating, makes single group member gas generator design objective typing, be more convenient
Selection and design.
2, the present invention helps designer to fire by wizard-like Design of digital with simple and clear design template
The selection of the key design parameter of gas generator, each modular construction form and propellant type supports designer smoothly complete
At the professional the Automation Design by Knowledge driving, achieve the purpose that improve design efficiency and designing quality.This method it is main excellent
Gesture is embodied in can be according to product itself and design process the characteristics of, and it includes comprehensively that mentality of designing and design are joined to formulate one
Several template so that designer rapidly can be such that product becomes from conception according to its mentality of designing and product parameters feature
Reality.
Description of the drawings
Fig. 1 is Design of digital function structure chart；
Fig. 2 is Parametric drive modeling process.
Specific implementation mode
The present invention is described in detail below.
The present invention is based on the gas generator wizard-like design methods of template, can be according to single group member gas generator performance
Index request helps designer to carry out key design parameter, each component of gas generator with simple and clear design cycle
The selection of structure type and propellant type provides condition for that can carry out quick apperance generation.Wizard-like Design of digital
Core be to establish suitable design cycle, the flow should with traditional design experiences method be adapted, can will design warp
The alternate item being converted into flow, while the detailed problem during unitized management design are tested, accomplishes to avoid repeating as possible setting
Meter, achievees the purpose that rapid modeling, design cycle are as shown in Figure 1：
It is one of the main characteristics of this method using parameterized modeling technology.Parametric technology refers to predefined using parameter
Method establish the set constraint collection of single group member gas generator design template, a specified packet size makes itself and geometry as parameter
Constraint set is associated, and all correlations are dissolved into application program, finally by program according to these parameters and its variation
The method for being sequentially performed expression formula to realize design.In the design of parametrization, initial single group member gas generator part
G- Design and installation diagram are all rough, gradually refine and enrich repeatedly later.This design cycle is called on " from top and under "
Design.
After structure design disclosure satisfy that parameter index requirement, structural parameters pass through induction-arrangement, form parameter list (such as table
1), into parametric modeling process.
1 Generator Design parameter of table
The modeling of gas generator is catalytically decomposed in single group member, establishes on the basis of variable design parameter designing, by structure
The structural parameters completed in design are input in the template for having carried out variable design processing, driving template modeling, can quickly by
Result of design is transformed among model, and specific process is by obtaining model parameter list --- and Parametric drive models substantially
Process carries out, as shown in Figure 2：
In the decomposable process to gas generator design parameter, and Generator Design is relevant has related parameter all to have been subjected to
Summarizing is established the quick design template of suitable gas generator, is facilitated in design process based on these parameter lists
Corresponding design template parameter is called according to the group texture type of design cycle or deisgn product at any time, facility is provided for design.
It describes in detail below to the present invention so that gas generator is catalytically decomposed in single group member as an example.
Single group member catalytic decomposition gas generator design template mainly (is urged by head design template, decomposition chamber design template
Agent bed) and jet pipe composition design template composition.
1, head design template
1.1) ejector fillers design subtemplate
Ejector filler is highly important element in gas generator component, and the quality of generator performance largely takes
Certainly in the quality of ejector filler, ejector filler directly affects working life, startability, efficiency and the job stability of generator.
Ejector filler designs subtemplate：Showerhead injector template, inserted injector template, head cavity distribution formula mould
Plate.
1.2) injection into orbit pipe designs subtemplate
Head pressure drop generally takes the 25%~50% of chamber pressure, by selecting different injection into orbit pipe radical np and thermal-insulated frame long
Degree, calculates the injection into orbit pipe latus rectum of suitable voltage drop value.
1.3) heads supplementary structure designs subtemplate
After the design parameter for determining ejector filler and injection into orbit pipe by above-mentioned calculating, input relevant parameter completes gas generator
Head construction design.The component of In-put design parameter is needed to connect mouth and thermal-insulated frame comprising ring flange, entrance.
2, decomposition chamber design template
Catalyst bed effect be by propellant catalytic decomposition be high-temperature gas working medium, generate thermal energy, mainly by bed shell, urge
Agent, filter and baffle composition.In gas generator Outline Design module, bed load, bed diameter etc. have been primarily determined.
Catalyst bed shell can be determined according to bed diameter and bed are long.Baffle design is divided at two, and catalyst bed is placed at one
Between jet pipe, another is placed between large or fine granule catalyst.The appearance and size of partition board according to the parameter of bed shell and
The specific present position of partition board determines, should select heat resistanceheat resistant and the strong material of anti-carbon potential.
3, jet pipe forms design template
System is other than requiring the metered flow of gas generator, outlet gas pressure, it is also desirable to fire the outlet of generator
Gas velocity degree, temperature are relatively low.It is general to choose in order to control the combustion gas speed of nozzle exit when carrying out gas generator Nozzle Design
Shrink nozzle meets requirement of the system to outlet pressure and speed.
It includes conical nozzle template, double-circular nozzle template, unconventional nozzle template that jet pipe, which forms design template,.
Claims (4)
1. the single group member gas generator wizard-like design method based on template, it is characterised in that：Include the following steps：
1) the technology requirement of overall assignment is determined
2) Outline Design：The technology of overall assignment is required to be analyzed and understood, primary election design parameter is required according to technology, and
It carries out preliminary performance indicator parameter to calculate, specially：
2.1)：According to the gas generator technical indicator of general requirement, the macrostructure parameter of gas generator is determined；
2.2) combustion of this secondary design is selected in the gas generator performance parameter having been formed according to the parameter determined in 2.1)
The decomposition chamber parameter of gas generator；
2.1) and 2.2) 2.3) thermodynamic computing is carried out according to the parameter determined in, provides the performance parameter of gas generator；
2.4) if the performance parameter obtained in step 2.3) can meet the technology requirement of overall assignment, set in next step
Meter, otherwise the parameter in set-up procedure 2.1-2.2, are recalculated；
2.5) by step 2.1), 2.2) and 2.3) in the parameter for meeting general technical requirement that finally determines be aggregated into table；
3) part design
3.1) parameter model：Each component part to forming gas generator carries out parameter model respectively；When parametric modeling,
By the key design parameter variable design of gas generator, the pact between design parameter in the gas generator model having been formed is extracted
Beam relationship, and cured in a template；Data-interface and technology branch are provided for optimization design and variable driven three-dimensional modeling
It holds；
3.2) according in Outline Design with assemble relevant parameter, in each parameters of operating part template with assemble relevant parameter into
Row adjustment, ensures the reliable assembling of each component；
3.3) according in Outline Design relative parameters setting and previous ripe design experiences, determine in each parameters of operating part template
Remaining variable parameter value completes the detailed design of each component；
4) simulating, verifying.
2. the single group member gas generator wizard-like design method according to claim 1 based on template, it is characterised in that：
The template of single group member gas generator includes head design template, decomposition chamber design template and jet pipe composition design template.
3. the single group member gas generator wizard-like design method according to claim 2 based on template, it is characterised in that：
The head design template includes ejector filler design subtemplate, injection into orbit pipe design subtemplate and head supplementary structure design submodule
Plate.
4. the single group member gas generator wizard-like design method according to claim 2 based on template, it is characterised in that：
It includes conical nozzle template, double-circular nozzle template, unconventional nozzle template that jet pipe, which forms design template,.
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| US6886340B1 (en) * | 2002-09-23 | 2005-05-03 | Joseph Frank Pierce, Jr. | Method for converting waste into electricity |
| CN102174338A (en) * | 2010-12-31 | 2011-09-07 | 中国航天科技集团公司第六研究院第十一研究所 | Low-flow, high-mixing ratio and stepless regulation gas-liquid mixing gas generator |
| CN105020050A (en) * | 2015-06-03 | 2015-11-04 | 中国人民解放军装备学院 | On-line adjustable fuel gas generator adopting jet flow collision combustion mode |
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| US6808693B2 (en) * | 2001-06-12 | 2004-10-26 | Hydrotreat, Inc. | Methods and apparatus for increasing and extending oil production from underground formations nearly depleted of natural gas drive |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6886340B1 (en) * | 2002-09-23 | 2005-05-03 | Joseph Frank Pierce, Jr. | Method for converting waste into electricity |
| CN102174338A (en) * | 2010-12-31 | 2011-09-07 | 中国航天科技集团公司第六研究院第十一研究所 | Low-flow, high-mixing ratio and stepless regulation gas-liquid mixing gas generator |
| CN105020050A (en) * | 2015-06-03 | 2015-11-04 | 中国人民解放军装备学院 | On-line adjustable fuel gas generator adopting jet flow collision combustion mode |
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| Solid Rocket Grain Configuration Variational Design Method Based on Geometric Constraint Sketch;Qiang Cai, et al;《2010 Second WRI World Congress on Software Engineering》;20101231;第181-184页 * |
| 考虑低燃温燃气发生器试验的弹射器内弹道性能预示;惠卫华等;《固体火箭技术》;20131231;第36卷(第6期);第715-719页 * |
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