CN102954892A - System and method for verifying simulated analysis result of safety airbag explosion (CAE) - Google Patents
System and method for verifying simulated analysis result of safety airbag explosion (CAE) Download PDFInfo
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- CN102954892A CN102954892A CN2011102532288A CN201110253228A CN102954892A CN 102954892 A CN102954892 A CN 102954892A CN 2011102532288 A CN2011102532288 A CN 2011102532288A CN 201110253228 A CN201110253228 A CN 201110253228A CN 102954892 A CN102954892 A CN 102954892A
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Abstract
The invention relates to a system for verifying the simulated analysis result of safety airbag explosion (CAE). The system comprises a first part, a second part, acceleration sensors and a data acquiring and processing device. By adopting the system, the acceleration magnitude of a safety airbag in the explosion process when a mass block in a guide rail on the first part is impacted can be acquired, data processing is carried out to obtain an acceleration curve so that the acceleration curve is compared and analyzed with an acceleration curve obtained in the CAE simulated analogue safety airbag explosion process to verify whether the CAE simulated modeling result is correct, and the credibility is proven to be high if the contact ratio meets the preset requirement. The invention also relates to a method for verifying the simulated analysis result of safety airbag explosion (CAE). By the system, whether the establishment of the CAE simulated model, the extension of the simulated safety airbag and the analysis on the influence of peripheral parts meet the practical situation, and a reliable, true and practical guidance can be provided for the structural design and manufacturing of parts.
Description
[technical field]
The invention belongs to the safety airbag technique field, relate in particular to a kind of system and method for authenticating security air bag explosion CAE simulation analysis result.
[background technology]
In the present world/domestic new model interior design, the impact that during for air-bag deployment peripheral interior trim parts is caused (for example, plaque fracture, air bag can't normally launch etc.) research and analyse, usually the step that adopts is rule of thumb to come more conversion materials, change project organization etc., then repeatedly verifies until till qualified by Physical Experiment.But, the problem of the aspect such as adopt these existing modes to exist long, change of design cycle and experimental expenses is high, manpower and materials have high input, so industry is attempted gradually using the CAE analogue simulation and is developed to substitute traditional pattern of designing and developing.
It should be noted that, because CAE analogue simulation air bag blasting process there is no ripe application at home and abroad, and use after the CAE technology it for the foundation of air bag model and whether accurate with the system made of its Surrounding Parts, whether air bag is conformed to fully or basically conforms to the true process of reality by the expansion process after detonating, whether the conclusion that draws by analysis can have directive significance to parts design, and these there is no ready-made research and can use for reference.
For example, be CN101973240A in patent publication No., be entitled as and mentioned in the Chinese invention patent application of " safety airbag casing " and use the initiation process that the CAE technology is come the analogue simulation air bag, thereby finish corresponding head and bump analysis, then analyze conclusion according to it and carry out architecture advances for safety airbag casing.As mentioned above, in the technical scheme of this patent application, obviously air bag explosion CAE simulation analysis result is not carried out necessary checking yet, therefore it is ill-considered directly adopting this CAE simulation analysis result to instruct improvement design and the manufacturing, might form potential risk.
[summary of the invention]
In view of this, the object of the invention is to a kind of system and method for authenticating security air bag explosion CAE simulation analysis result, effectively to solve the problem of the above-mentioned and other aspect that exists in the prior art.
In order to realize above-mentioned goal of the invention, the present invention has adopted following technical scheme:
A kind of system for authenticating security air bag explosion CAE simulation analysis result, it comprises:
First component, it is configured to be suitable for to hold the air bag after the explosion and does not deform in the air bag blasting process, and be equiped with guide rail on it and be fixedly mounted with parts, be equiped with corresponding to diverse location on the air bag in the described guide rail and be suitable for being subjected to its promotion after air bag is launched by detonating and at least one mass of moving in described guide rail, the described parts that are fixedly mounted with are used for making the air bag that is in not explosion and is under the contraction state be packed in described first component;
Second component, it is formed at and does not deform in the air bag blasting process and can not interfere the motion of described mass in described guide rail, and is suitable for limiting the expansion direction of air bag and makes it to be consistent with the direction of motion of described mass;
Acceleration transducer, it is so that being equiped with the mode of at least one acceleration transducer on each described mass arranges, so that the accekeration when measuring air bag impacting described mass in blasting process; And
Data acquisition processing device, it is used for gathering described accekeration and obtaining accelerating curve according to its processing, so that with it be analyzed to verify by the resulting accelerating curve of CAE analogue simulation air bag blasting process whether the result of CAE simulation modeling correct, shows the with a high credibility of this CAE simulation modeling if the two registration meets preset requirement.
In above-mentioned system for authenticating security air bag explosion CAE simulation analysis result, preferably, the described parts that are fixedly mounted with are beam shape and which is provided with mounting hole, in order to by web member the auricle of air bag is fixed in the described parts that are fixedly mounted with via described mounting hole.
In above-mentioned system for authenticating security air bag explosion CAE simulation analysis result, preferably, described second component is tabular and is installed on the described first component.
In above-mentioned system for authenticating security air bag explosion CAE simulation analysis result, preferably, adopt bearing to be connected between described guide rail and the described mass.
In above-mentioned system for authenticating security air bag explosion CAE simulation analysis result, preferably, described first component, be fixedly mounted with parts and/or second component and adopt metal material to make.
A kind of method for authenticating security air bag explosion CAE simulation analysis result, it comprises:
The air bag that will be in not explosion and be under the contraction state is installed in the parts that are fixedly mounted with that are located on the first component, described first component is configured to be suitable for to hold the air bag after the explosion and does not deform in the air bag blasting process, and be equiped with guide rail at described first component, be equiped with corresponding to diverse location on the air bag in the described guide rail and be suitable for after air bag is launched by detonating, being subjected to its promotion and at least one mass of in described guide rail, moving;
At each described at least one acceleration transducer of mass installing;
Second component is set, described second component is formed at and does not deform in the air bag blasting process and can not interfere the motion of described mass in described guide rail, and is suitable for limiting the expansion direction of air bag and makes it to be consistent with the direction of motion of described mass;
The quick-fried air bag of point is so that its expansion and promote described mass and move in described guide rail, and the accekeration when measuring air bag impact described mass in blasting process by described acceleration transducer; And
Gather described accekeration and obtain accelerating curve according to its processing, yet with it be analyzed by the resulting accelerating curve of CAE analogue simulation air bag blasting process, so that whether the result of checking CAE simulation modeling is correct, if meeting preset requirement, the two registration shows the with a high credibility of this CAE simulation modeling.
Beneficial effect of the present invention is: adopt the system and method for authenticating security air bag explosion CAE simulation analysis result of the present invention, can verify effectively whether foundation, the simulating Safety airbag deployment of CAE realistic model and the analysis that its Surrounding Parts is affected thereof tally with the actual situation, thereby can provide the guidance that has more reliability, authenticity and practical value for structural design and the manufacturing of parts, be conducive to evade as much as possible the risk that causes owing to unreasonable Design and manufacture, effectively promote the safe application performance of parts.
[description of drawings]
Below with reference to drawings and Examples, technical scheme of the present invention is described in further detail.Wherein:
Fig. 1 is that the structure of an embodiment of the system for authenticating security air bag explosion CAE simulation analysis result of the present invention forms schematic diagram;
Fig. 2 is based on embodiment among Fig. 1, adopts the method that is used for authenticating security air bag explosion CAE simulation analysis result in the overall schematic of experiment during the preproduction phase; And
Fig. 3 is based on embodiment among Fig. 1, adopts the method overall schematic after the air bag explosion implementation phase of experiment that is used for authenticating security air bag explosion CAE simulation analysis result.
Description of reference numerals:
1 first component, 2 second components
3 are fixedly mounted with parts 4 guide rails
5 masses, 6 acceleration transducers
7 air bags
[embodiment]
See also Fig. 1, schematically demonstrated in the figure the basic composition situation of the embodiment of system for authenticating security air bag explosion CAE simulation analysis result of the present invention.In this embodiment, system of the present invention mainly comprises first component 1, second component 2, acceleration transducer 6 and data acquisition processing device (not shown), and the below will be elaborated for these ingredients.
First component 1 is one of important composition parts in the system of the present invention, as shown in Figure 1, be in the above-described embodiments with this first component 1 globality be configured to framed structure, in order to after air bag 7 explosions, its volume that launches that fully expands can be contained in the first component 1, it is released energy by fully or be substantially limited in the native system, so as by acceleration transducer 6 and data acquisition processing device etc. carry out more accurate, process truly.
In order to guarantee that system of the present invention has stable, reliable Structural Tectonics, avoid measuring critical data by acceleration transducer 6 and distortion or invalid phenomenon occurring owing to malformation causes, so the one-piece construction of first component 1 should not deform in the blasting process of air bag.Like this, be a kind of favourable set-up mode as in the embodiment shown in fig. 1 first component 1 being configured to framed structure.Yet be understandable that, in certain embodiments, can also further adopt any other applicable versions according to the practical application needs.And the shape of first component 1 may not be to be rectangular shape among Fig. 1 yet, has such as square, cylindrical or other suitable shape but can this first component 1 correspondingly be made according to the own shape behind the airbag deployment.Certainly, the framed structure that as described above first component 1 directly is configured to rectangular in shape may be easy manufacturing, easy to use.
In addition, for first component 1 has good strength and stiffness, especially it should possess preferably shock resistance, so use in the preferred case metal materials such as iron, steel, copper to make first component 1.Understandablely be to make first component 1 at the other materials that in some cases also can be alternatively all can meet request for utilization with its intensity, rigidity, shock resistance etc.Certainly, can also be in conjunction with using above-mentioned these materials in the manufacture process of first component 1.
Please also refer to Fig. 1, Fig. 2 and Fig. 3, be provided with guide rail 4 at first component 1, be fixedly mounted with parts 3, and in guide rail 4, also be provided with the mass 5 that two energy move in guide rail 4, on each mass 5, installed in addition simultaneously two acceleration transducers 6, below will their aspects such as facilities, work characteristics be introduced.It is pointed out that these introduce that content all can only regard as is the exemplary illustrated that provides in order to understand better principle of work of the present invention and the characteristics that possess thereof and advantage, and they cannot be construed to any limitation of the invention.
Guide rail 4 is for mass 5 provides the operation constrained path, and it can adopt metal material or suitable nonmetallic materials to make.Two masses 5 have altogether been arranged in the above-described embodiments, they are arranged in the guide rail 4 and corresponding to the diverse location on the air bag 7, the position of these two masses 5 is suitable for being inflated expansion owing to its volume after air bag 7 detonates, thereby can promote them in guide rail 4 interior motions.In the illustrated embodiment, the direct of travel of these masses 5 is constrained in the plane that parallels with the bottom surface (or perhaps arrangement plane of first component 1) of first component 1, and this direct of travel all is vertically towards the same side of first component 1.
Consider according to actual needs or for some other situation, can also in other embodiments, the acceleration transducer 6 of greater number be set neatly at each mass 5.Certainly, also can be at the different acceleration transducer 6 of different masses 5 magnitude settings.
In the illustrated embodiment, be to adopt bearing to be connected between guide rail 4 and mass 5, in order to reduce the contact friction force between them.Be understandable that, above-mentioned bearing changed into adopt any other known way of the prior art or device also to be allowed to fully.
Several acceleration transducers 6 that are arranged on the mass 5 in Fig. 2 and Fig. 3, have been demonstrated, more specifically say and on each mass 5, installed two acceleration transducers 6, discharge the accekeration that mass 5 is impacted generation in order to measure the energy of air bag 7 in blasting process by them.In other embodiments, the acceleration transducer 6 of greater number can be set at each mass 5, guarantee its reliability and improve its accuracy in order to can gather the more data of acquisition.Yet, according to mentality of designing and basic demand, in system of the present invention, really can the most only provide a mass 5, and at this mass 5 acceleration transducer 6 only is set and realize gathering the purpose of obtaining corresponding data.
Also be provided with at first component 1 and be fixedly mounted with parts 3, it is that the air bag 7 that is provided for being in not explosion and being under the contraction state is fixedly mounted with on the first component 1.In Fig. 1-3, being fixedly mounted with parts 3 is illustrated as and is configured to beam shape, and be fixedly mounted with parts 3 at this and be provided with mounting hole, thereby can be fixedly mounted with parts 3 by using web member (such as bolt, clasp etc.) that the auricle of air bag 7 is fixed in via mounting hole, so also just this air bag 7 is packed on the first component 1 to simulate the real vehicle installation situation of air bag.For being fixedly mounted with parts 3, also can adopt metal material, suitable nonmetallic materials or its combination to make.
In the embodiment that Fig. 1-3 provides, system of the present invention also comprises second component 2.Such second component 2 is by the special expansion track that is used for limiting air bag 7 of arranging, so that its expansion direction can be consistent with the direction of motion of aforesaid mass 5 in guide rail 4.Namely, shown in Fig. 1 and Fig. 2 are clear, second component 2 is configured to be writing board shape, and it is installed on the first component 1, expand in the direction perpendicular to first component 1 bottom surface in order to can effectively limit air bag 7, fully or basically be controlled in the plane that is parallel to first component 1 bottom surface thereby make it.In order to guarantee above-mentioned restriction effect, second component 2 is not taken in the air bag blasting process and deforms, and should not interfere with the motion of all masses 5 in guide rail 4 in the air bag blasting process yet.For second component 2, also can adopt metal material, suitable nonmetallic materials or its combination to be made into.
Be provided with specially in the present invention data acquisition processing device, it is to gather to measure accekeration by aforesaid acceleration transducer 6, then (for example process according to these image data, adopt NUMERICAL MATCH METHOD FOR etc.) obtain accelerating curve so that further with this accelerating curve be analyzed by the resulting accelerating curve of CAE analogue simulation air bag blasting process.By this comparative analysis, if the registration of above-mentioned two accelerating curves can reach predefined requirement (can receive with reference to the error of CAE realistic model the situations such as accuracy rating that degree, data processing method realize determines), then show the with a high credibility of this CAE simulation modeling, thereby whether the result that can finally verify the CAE simulation modeling is correct.Above-mentioned data acquisition processing device is not emphasis of the present invention, can adopt relevant device device of the prior art to realize its function to this, so do not do more descriptions at this.
Correspondingly, the present invention provides a kind of method for authenticating security air bag explosion CAE simulation analysis result simultaneously, and the below is again in conjunction with the concrete operation step that the method is described with reference to figure 1,2 and 3.
At first, the air bag 7 that will be in not explosion and be under the contraction state is fixedly mounted with on the parts 3, simultaneously in first component 1 upper rail 4, be provided with at least one mass 5, and being furnished with at least one acceleration transducer 6 at each mass 5, the expansion direction that limits air bag 7 by second component 2 is set makes it to be consistent with the direction of motion of mass 5;
Then, put quick-fried air bag 7, this air bag 7 is expanded launch and promote thus mass 5 in guide rail 4 interior motions, each acceleration transducer 6 that passes through to arrange is measured air bag 7 accekeration during impact mass piece 5 in blasting process;
Subsequently, collection measures accekeration by each acceleration transducer 6, and process in order to obtain accelerating curve according to these data, next further this accelerating curve of comparative analysis, by the resulting accelerating curve of CAE analogue simulation air bag blasting process, if the registration between these two accelerating curves can meet preset requirement, show that then tested CAE simulation modeling has higher confidence level, can simulate more truly the explosion situation of air bag, be trustworthy so this CAE realistic model is used for simulation analysis.Otherwise, just should consider further to revise or thoroughly rebuild this CAE realistic model.
Like this, also just can make things convenient for and effectively verify by said method of the present invention whether CAE simulation modeling result is correct.About each the parts situation that relates in the above explanation, see also the corresponding contents of aforementioned, do not repeat them here.
More than enumerate some specific embodiments and illustrated in detail the system and method for authenticating security air bag explosion CAE simulation analysis result of the present invention, these a few examples are only for explanation principle of the present invention and embodiment thereof, but not limitation of the present invention, in the situation that do not break away from the spirit and scope of the present invention, those of ordinary skill in the art can also make various distortion and improvement.Therefore, all technical schemes that are equal to all should belong to category of the present invention and be limited by every claim of the present invention.
Claims (10)
1. a system that is used for authenticating security air bag explosion CAE simulation analysis result is characterized in that, described system comprises:
First component, it is configured to be suitable for to hold the air bag after the explosion and does not deform in the air bag blasting process, and be equiped with guide rail on it and be fixedly mounted with parts, be equiped with corresponding to diverse location on the air bag in the described guide rail and be suitable for being subjected to its promotion after air bag is launched by detonating and at least one mass of moving in described guide rail, the described parts that are fixedly mounted with are used for making the air bag that is in not explosion and is under the contraction state be packed in described first component;
Second component, it is formed at and does not deform in the air bag blasting process and can not interfere the motion of described mass in described guide rail, and is suitable for limiting the expansion direction of air bag and makes it to be consistent with the direction of motion of described mass;
Acceleration transducer, it is so that being equiped with the mode of at least one acceleration transducer on each described mass arranges, so that the accekeration when measuring air bag impacting described mass in blasting process; And
Data acquisition processing device, it is used for gathering described accekeration and obtaining accelerating curve according to its processing, so that with it be analyzed to verify by the resulting accelerating curve of CAE analogue simulation air bag blasting process whether the result of CAE simulation modeling correct, shows the with a high credibility of this CAE simulation modeling if the two registration meets preset requirement.
2. the system for authenticating security air bag explosion CAE simulation analysis result according to claim 1, it is characterized in that, the described parts that are fixedly mounted with are beam shape and which is provided with mounting hole, in order to by web member the auricle of air bag is fixed in the described parts that are fixedly mounted with via described mounting hole.
3. the system for authenticating security air bag explosion CAE simulation analysis result according to claim 1 is characterized in that, described second component is tabular and is installed on the described first component.
4. the system for authenticating security air bag explosion CAE simulation analysis result according to claim 1 is characterized in that, adopts bearing to be connected between described guide rail and the described mass.
5. each described system for authenticating security air bag explosion CAE simulation analysis result is characterized in that according to claim 1-4, described first component, is fixedly mounted with parts and/or second component and adopts metal material to make.
6. a method that is used for authenticating security air bag explosion CAE simulation analysis result is characterized in that, described method comprises:
The air bag that will be in not explosion and be under the contraction state is installed in the parts that are fixedly mounted with that are located on the first component, described first component is configured to be suitable for to hold the air bag after the explosion and does not deform in the air bag blasting process, and be equiped with guide rail at described first component, be equiped with corresponding to diverse location on the air bag in the described guide rail and be suitable for after air bag is launched by detonating, being subjected to its promotion and at least one mass of in described guide rail, moving;
At each described at least one acceleration transducer of mass installing;
Second component is set, described second component is formed at and does not deform in the air bag blasting process and can not interfere the motion of described mass in described guide rail, and is suitable for limiting the expansion direction of air bag and makes it to be consistent with the direction of motion of described mass;
The quick-fried air bag of point is so that its expansion and promote described mass and move in described guide rail, and the accekeration when measuring air bag impact described mass in blasting process by described acceleration transducer; And
Gather described accekeration and obtain accelerating curve according to its processing, yet with it be analyzed by the resulting accelerating curve of CAE analogue simulation air bag blasting process, so that whether the result of checking CAE simulation modeling is correct, if meeting preset requirement, the two registration shows the with a high credibility of this CAE simulation modeling.
7. the method for authenticating security air bag explosion CAE simulation analysis result according to claim 6, it is characterized in that, the described parts that are fixedly mounted with are beam shape and which is provided with mounting hole, in order to by web member the air bag auricle is fixed in described being fixedly mounted with on the parts via described mounting hole.
8. the method for authenticating security air bag explosion CAE simulation analysis result according to claim 6 is characterized in that, described second component is tabular and is installed on the described first component.
9. the method for authenticating security air bag explosion CAE simulation analysis result according to claim 6 is characterized in that, adopts bearing to be connected between described guide rail and the described mass.
10. each described method for authenticating security air bag explosion CAE simulation analysis result is characterized in that according to claim 6-9, described first component, is fixedly mounted with parts and/or second component and adopts metal material to make.
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| CN201110253228.8A CN102954892B (en) | 2011-08-30 | 2011-08-30 | System and method for verifying simulated analysis result of safety airbag explosion (CAE) |
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Cited By (1)
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| CN106840640A (en) * | 2017-03-30 | 2017-06-13 | 北京汽车股份有限公司 | The analogue system and method for vehicle airbag |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106840640A (en) * | 2017-03-30 | 2017-06-13 | 北京汽车股份有限公司 | The analogue system and method for vehicle airbag |
| CN106840640B (en) * | 2017-03-30 | 2019-06-18 | 北京汽车股份有限公司 | The analogue system and method for vehicle airbag |
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