CN110427673A - A kind of measuring method of automobile heat exchanger components effective front face area and aperture efficiency - Google Patents
A kind of measuring method of automobile heat exchanger components effective front face area and aperture efficiency Download PDFInfo
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- CN110427673A CN110427673A CN201910666089.8A CN201910666089A CN110427673A CN 110427673 A CN110427673 A CN 110427673A CN 201910666089 A CN201910666089 A CN 201910666089A CN 110427673 A CN110427673 A CN 110427673A
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000013178 mathematical model Methods 0.000 claims abstract description 12
- 230000001970 hydrokinetic effect Effects 0.000 claims abstract description 5
- 238000004321 preservation Methods 0.000 claims description 2
- 238000013499 data model Methods 0.000 description 5
- 238000009423 ventilation Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 206010057855 Hypotelorism of orbit Diseases 0.000 description 1
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Abstract
The purpose of the present invention is to propose to the measuring methods of a kind of simple, accurate, easy-operating automobile heat exchanger components effective front face area and aperture efficiency, the specific steps are as follows: A, the mathematical model data for initially setting up all parts in vehicle front-end cooling module；B, above-mentioned mathematical model data are imported into hydrokinetics calculation software, and forms the vehicle front-end cooling module of assembled state；C, the normal orientation that heat exchanger components to be measured carry out given plane is projected, calculates projected area a；The normal orientation projection that all air inlet interference components are carried out to given plane, calculates projected area c；The normal orientation that all air inlet interference components carry out given plane together with heat exchanger components to be measured is projected again, calculates projected area b；For the given plane perpendicular to the direction windward of automobile, the normal orientation is the direction windward of automobile；D, the effective front face area for calculating heat exchanger components to be measured is b-c, and effective vent ratio is (b-c)/a.
Description
Technical field
The invention belongs to engine coolings and air conditioning performance design and testing field, and in particular to change to a kind of automobile
The measuring method of thermal part effective front face area and aperture efficiency.
Background technique
The requirement of automobile engine cooling performance is the functional requirements of engine, and air-conditioning temperature-reducing performance is that passenger comfort needs
Ask, the satisfaction of above two demand and radiator, condenser etc. exchange heat components ventilation quantity tight association, and ventilation quantity with
Before possess effect front face area it is closely related, therefore, the design phase how quickly, precisely calculate effective front face area and opening
Than whether to meet design requirement most important.
Currently, domestic vehicle factor calculates the method for effective front face area and aperture efficiency mainly by CATIA software, extract
The face of mathematical model, line boundary, then by projection measuring and calculating, specific practice be by after grid opening area projection to YZ plane,
The area blocked is cut off in YZ plane again, finally obtains effective draught area.With guarantor's grid modelling fashion before vehicle
Change and complicate, this measuring and calculating operating method is cumbersome and easy error, and it is longer to calculate the time cycle, results of measuring consistency compared with
It is difficult to guarantee.
Summary of the invention
The purpose of the present invention is to propose to a kind of simple, accurate, easy-operating effective front face area of automobile heat exchanger components with open
The measuring method of mouth ratio, for accurately calculating in intake of the design phase to heat exchanger components in vehicle front-end cooling module.
The effective front face area of automobile heat exchanger components proposed by the present invention and the measuring method of aperture efficiency specifically include following step
It is rapid:
A, the mathematical model data of all parts in vehicle front-end cooling module are initially set up；
B, above-mentioned mathematical model data are imported into hydrokinetics calculation software, and before forming the vehicle of assembled state
Hold refrigerating module；
C, the normal orientation that heat exchanger components to be measured carry out given plane is projected, calculates projected area a；Then upper
It states in vehicle front-end cooling module model, filters out the air inlet interference portion than heat exchanger components to be measured closer to the given plane
Part, and the normal orientation that above-mentioned all air inlet interference components carry out given plane is projected, calculate projected area c；Again by institute
There is air inlet interference component to carry out the normal orientation projection of given plane together with heat exchanger components to be measured, calculates projected area b；
For the given plane perpendicular to the direction windward of automobile, the normal orientation is the direction windward of automobile；
D, the effective front face area for calculating heat exchanger components to be measured is b-c, and effective vent ratio is (b-c)/a.
In above-mentioned measuring method, it is a series of to avoid face, line boundary that mathematical model is extracted in traditional measuring method etc.
Operation substantially reduces the measuring and calculating time, and precision and consistency are very good.
Further, all parts described in step A refer to influencing the component of front-end cooling module intake, to reduce
The modeling work amount and subsequent measuring and calculating workload of corresponding independent component, to improve measuring and calculating efficiency.
Further, in the step C, if having wind deflector, heat exchanging part to be measured in D step in air inlet interference component
The effective vent ratio of part is (b-c+Ad*Kd)/a, wherein AdFor the wind-guiding area of wind deflector, KdFor the wind-guiding coefficient of wind deflector.By
Part can be located at the air-flow outside opening in wind deflector imported into opening, form effective ventilation, therefore by wind deflector
Influence is added in the measuring and calculating of effective vent ratio, and the actual accuracy of effective vent ratio can be improved, to be subsequent design
Reference closer to truth is provided.
Further, in the step C, the air draft than heat exchanger components to be measured further from the given plane is filtered out
Interfere component, and calculate air draft interference the distance between component and heat exchanger components to be measured, if air draft interference component with it is to be measured
The distance between heat exchanger components be less than preset distance, then in step C respectively by air draft interfere component, heat exchanger components to be measured into
The normal orientation of row given plane projects, and calculates projected area be overlapped between air draft interference component and heat exchanger components to be measured
d；The effective vent ratio of heat exchanger components to be measured is (b-c-d*J in the D stepp)/a, wherein JpThe row of component is interfered for air draft
Wind interference coefficient, value are 0 < Jp< 1.If the hypotelorism of component and heat exchanger components to be measured is interfered in air draft, just it will affect
Air-flow flows through heat exchanger components to be measured, that is, correspondingly reduces opening, therefore air draft interference component is introduced in measuring and calculating
It influences, the actual accuracy of effective vent ratio can be improved, to provide the reference closer to truth for subsequent design.
Above-mentioned JpComponent can be interfered to be set at a distance from heat exchanger components to be measured according to air draft, closer, the J of distancepIt is worth bigger.
Further, in the step C, the air draft than heat exchanger components to be measured further from the given plane is filtered out
Interfere component, and calculate air draft interference the distance between component and heat exchanger components to be measured, if air draft interference component with it is to be measured
The distance between heat exchanger components be less than preset distance, then in step C respectively by air draft interfere component, heat exchanger components to be measured into
The normal orientation of row given plane projects, and calculates projected area be overlapped between air draft interference component and heat exchanger components to be measured
d；The effective vent ratio of heat exchanger components to be measured is (b-c+A in the D stepd*Kd–d*Jp)/a, wherein Jp is air draft interference portion
The air draft interference coefficient of part, value are 0 < Jp< 1；AdFor the wind-guiding area of the wind deflector in air inlet interference component, KdFor wind-guiding
The wind-guiding coefficient of plate.The measure formula introduces the influence of wind deflector, air draft interference component to opening simultaneously, closer to true feelings
Condition.
The measuring method of the effective front face area of automobile heat exchanger components and aperture efficiency of the invention is not only easy to operate, Er Qiekao
The influence of the circumferential component of heat exchanger components to be measured is considered, therefore results of measuring, closer to truth, accuracy is higher.
Detailed description of the invention
Fig. 1 is the data model of preceding guarantor and grid in embodiment 1.
Fig. 2 is the data model of anti-collision beam in embodiment 1.
Fig. 3 is the data model of radiator in embodiment 1.
Specific embodiment
It is for example related each to a specific embodiment of the invention by the description to embodiment below against attached drawing
The shape of component, construction, the mutual alignment between each section and connection relationship, the effect of each section and working principle etc. are made into one
The detailed description of step.
Embodiment 1:
The present embodiment proposes the measuring method of a kind of automobile heat exchanger components effective front face area and aperture efficiency, to be used for
Accurately calculate in intake of the design phase to heat exchanger components in vehicle front-end cooling module.
The measuring method of the effective front face area of automobile heat exchanger components and aperture efficiency that the present embodiment proposes specifically includes as follows
Step:
A, the mathematical model data (number shown in similar Fig. 1~3 of all parts in vehicle front-end cooling module is initially set up
According to model), and save * .prt, * cgr, * stl, * x_t, * x_b, * igs, * iges, * step, * stp, * catpart, *
Catproduct, * sldprt, * sldasm, * asm, any format in 3dxml；Above-mentioned component include automobile front protecting, grid,
The heat exchange such as component and condenser, radiator, intercooler of anti-collision beam and other had an impact front-end cooling module intakes
Component；
B, above-mentioned mathematical model data are imported into the STAR-CCM+ hydrokinetics calculation of CD-adapco company product
In software, and in the software formed assembled state vehicle front-end cooling module model；
C, the normal orientation that heat exchanger components to be measured carry out given plane is projected, calculates projected area a；Then upper
It states in vehicle front-end cooling module model, filters out the air inlet interference portion than heat exchanger components to be measured closer to the given plane
Part, and the normal orientation that above-mentioned all air inlet interference components carry out given plane is projected, calculate projected area c；Again by institute
There is air inlet interference component to carry out the normal orientation projection of given plane together with heat exchanger components to be measured, calculates projected area b；
For the given plane perpendicular to the direction windward of automobile, the normal orientation is the direction windward of automobile；
Specific operating method is as follows in step C:
Data model after above-mentioned preservation is directed respectively into STAR-CCM+ software, selection is created under report catalogue
Frontal Area function；
The normal direction for needing to project is specified in the normal option of Frontal Area function；
In the parts option under Frontal Area function, all importing data models are chosen；
It is calculated in Frontal Area and imports heat exchanger components to be measured in effective projected area on perspective plane, be denoted as a；
Projected area b, c is calculated by same procedure.
D, the effective front face area for calculating heat exchanger components to be measured is b-c, and effective vent ratio is (b-c)/a.
In above-mentioned measuring method, it is a series of to avoid face, line boundary that mathematical model is extracted in traditional measuring method etc.
Operation substantially reduces the measuring and calculating time, and precision and consistency are very good.
Embodiment 2:
Unlike the first embodiment, there is wind deflector in the air inlet interference component in the present embodiment, then it is to be measured in D step
The effective vent ratio of heat exchanger components is (b-c+Ad*Kd)/a, wherein AdFor the wind-guiding area of wind deflector, KdFor the wind-guiding of wind deflector
Coefficient.It is imported into opening since part can be located at the air-flow outside opening by wind deflector, forms effective ventilation, therefore will lead
The influence of aerofoil is added in the measuring and calculating of effective vent ratio, and the actual accuracy of effective vent ratio can be improved, to be subsequent
Design provide closer to truth reference.
Embodiment 3:
Unlike the first embodiment, it in the step C of the present embodiment, filters out than heat exchanger components to be measured further from institute
The air draft interference component of given plane is stated, and calculates air draft interference the distance between component and heat exchanger components to be measured, if air draft
Interfere the distance between component and heat exchanger components to be measured be less than preset distance, then in step C respectively by air draft interference component,
Heat exchanger components to be measured carry out the normal orientation projection of given plane, calculate air draft interference component and heat exchanger components to be measured it
Between the projected area d that is overlapped；The effective vent ratio of heat exchanger components to be measured is (b-c-d*J in the D stepp)/A, wherein JpFor
The air draft interference coefficient of component is interfered in air draft, and value is 0 < Jp< 1.Air draft interferes component at a distance from heat exchanger components to be measured
It crosses closely, just will affect air-flow and flow through heat exchanger components to be measured, that is, correspondingly reduce opening, therefore draw in measuring and calculating
The influence for entering air draft interference component, can be improved the actual accuracy of effective vent ratio, more connect to provide for subsequent design
The reference of nearly truth.Above-mentioned JpComponent can be interfered to be set at a distance from heat exchanger components to be measured according to air draft, away from
From closer, JpIt is worth bigger.
Embodiment 4:
Unlike the first embodiment, it in the step C of the present embodiment, filters out than heat exchanger components to be measured further from institute
The air draft interference component of given plane is stated, and calculates air draft interference the distance between component and heat exchanger components to be measured, if air draft
Interfere the distance between component and heat exchanger components to be measured be less than preset distance, then in step C respectively by air draft interference component,
Heat exchanger components to be measured carry out the normal orientation projection of given plane, calculate air draft interference component and heat exchanger components to be measured it
Between the projected area d that is overlapped；The effective vent ratio of heat exchanger components to be measured is (b-c+A in the D stepd*Kd–d*Jp)/a,
Middle Jp is the air draft interference coefficient that component is interfered in air draft, and value is 0 < Jp< 1；AdFor leading for the wind deflector in air inlet interference component
Wind area, KdFor the wind-guiding coefficient of wind deflector.The measure formula introduces wind deflector simultaneously, air draft interferes component to the shadow of opening
It rings, closer to truth.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention specifically designs not by aforesaid way
Limitation, if use the improvement for the various unsubstantialities that conception and technical scheme of the invention carry out, or it is not improved will
Conception and technical scheme of the invention directly apply to other occasions, within the scope of the present invention.
Claims (7)
1. a kind of measuring method of automobile heat exchanger components effective front face area and aperture efficiency, it is characterised in that include the following steps:
A, the mathematical model data of all parts in vehicle front-end cooling module are initially set up；
B, above-mentioned mathematical model data are imported into hydrokinetics calculation software, and the vehicle front end for forming assembled state is cold
But module；
C, the normal orientation that heat exchanger components to be measured carry out given plane is projected, calculates projected area a；Then above-mentioned whole
In vehicle front-end cooling module model, the air inlet filtered out than heat exchanger components to be measured closer to the given plane interferes component,
And project the normal orientation that above-mentioned all air inlet interference components carry out given plane, calculate projected area c；Again by it is all into
It air-dries and disturbs the normal orientation projection that component carries out given plane together with heat exchanger components to be measured, calculate projected area b；It is described
For given plane perpendicular to the direction windward of automobile, the normal orientation is the direction windward of automobile；
D, the effective front face area for calculating heat exchanger components to be measured is b-c, and effective vent ratio is (b-c)/a.
2. the measuring method of automobile effective front face area and aperture efficiency according to claim 1, it is characterised in that in step A
The all parts refer to influencing the component of front-end cooling module intake.
3. the measuring method of automobile effective front face area and aperture efficiency according to claim 1, it is characterised in that in the C
In step, if having a wind deflector in air inlet interference component, the effective vent ratio of heat exchanger components to be measured is (b-c+A in D stepd*
Kd)/a, wherein AdFor the wind-guiding area of wind deflector, KdFor the wind-guiding coefficient of wind deflector.
4. the measuring method of automobile effective front face area and aperture efficiency according to claim 1, it is characterised in that in the C
In step, filters out the air draft than heat exchanger components to be measured further from the given plane and interfere component, and calculate air draft interference
The distance between component and heat exchanger components to be measured, if air draft interference the distance between component and heat exchanger components to be measured are less than in advance
Set a distance then respectively throws the normal orientation that air draft interferes component, heat exchanger components to be measured to carry out given plane in step C
Shadow calculates projected area d be overlapped between air draft interference component and heat exchanger components to be measured；It is to be measured in the D step to change
The effective vent ratio of thermal part is (b-c-d*Jp)/a, wherein JpThe air draft interference coefficient of component is interfered for air draft, value is 0 <
Jp< 1.
5. the measuring method of automobile effective front face area and aperture efficiency according to claim 1, it is characterised in that in the C
In step, filters out the air draft than heat exchanger components to be measured further from the given plane and interfere component, and calculate air draft interference
The distance between component and heat exchanger components to be measured, if air draft interference the distance between component and heat exchanger components to be measured are less than in advance
Set a distance then respectively throws the normal orientation that air draft interferes component, heat exchanger components to be measured to carry out given plane in step C
Shadow calculates projected area d be overlapped between air draft interference component and heat exchanger components to be measured；It is to be measured in the D step to change
The effective vent ratio of thermal part is (b-c+Ad*Kd–d*Jp)/a, wherein JpThe air draft interference coefficient of component, value are interfered for air draft
For 0 < Jp< 1；AdFor the wind-guiding area of the wind deflector in air inlet interference component, KdFor the wind-guiding coefficient of wind deflector.
6. the measuring method of automobile described according to claim 1 or 2 or 3 or 4 or 5 effective front face area and aperture efficiency, special
Sign is that the hydrokinetics calculation software is STAR-CCM+ software.
7. the measuring method of automobile effective front face area and aperture efficiency according to claim 6, it is characterised in that the A step
The preservation format of mathematical model data is * .prt, * cgr, * stl, * x_t, * x_b, * igs, * iges, * step, * stp, * in rapid
Catpart, * catproduct, * sldprt, * sldasm, * asm, any one format in 3dxml.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112528413A (en) * | 2020-12-16 | 2021-03-19 | 一汽奔腾轿车有限公司 | Method for calculating opening area of radiator effective grid based on star ccm + |
| CN112668096A (en) * | 2020-12-24 | 2021-04-16 | 一汽奔腾轿车有限公司 | MATLAB-based method for calculating air inlet area of heat management of whole vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148810A (en) * | 2012-08-15 | 2013-06-12 | 吉林大学 | Method for measuring automobile face area and measuring device thereof |
| WO2017080471A1 (en) * | 2015-11-10 | 2017-05-18 | 冯春魁 | Comprehensive method and system for data measurement, surveillance, monitoring, and processing for vehicle |
-
2019
- 2019-07-23 CN CN201910666089.8A patent/CN110427673A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148810A (en) * | 2012-08-15 | 2013-06-12 | 吉林大学 | Method for measuring automobile face area and measuring device thereof |
| WO2017080471A1 (en) * | 2015-11-10 | 2017-05-18 | 冯春魁 | Comprehensive method and system for data measurement, surveillance, monitoring, and processing for vehicle |
Non-Patent Citations (1)
| Title |
|---|
| 杨洪涛: "汽车车身及发动机舱的CFD分析及优化改进", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112528413A (en) * | 2020-12-16 | 2021-03-19 | 一汽奔腾轿车有限公司 | Method for calculating opening area of radiator effective grid based on star ccm + |
| CN112668096A (en) * | 2020-12-24 | 2021-04-16 | 一汽奔腾轿车有限公司 | MATLAB-based method for calculating air inlet area of heat management of whole vehicle |
| CN112668096B (en) * | 2020-12-24 | 2022-08-12 | 一汽奔腾轿车有限公司 | MATLAB-based method for calculating air inlet area of heat management of whole vehicle |
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Application publication date: 20191108 |