CN115392022A - Method, system, electronic device and medium for obtaining effective projectile number - Google Patents
Method, system, electronic device and medium for obtaining effective projectile number Download PDFInfo
- Publication number
- CN115392022A CN115392022A CN202211010461.8A CN202211010461A CN115392022A CN 115392022 A CN115392022 A CN 115392022A CN 202211010461 A CN202211010461 A CN 202211010461A CN 115392022 A CN115392022 A CN 115392022A
- Authority
- CN
- China
- Prior art keywords
- strip
- shot
- effective
- nozzle
- shot blasting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005422 blasting Methods 0.000 claims abstract description 82
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 238000004590 computer program Methods 0.000 claims description 12
- 238000012545 processing Methods 0.000 claims description 9
- 238000002474 experimental method Methods 0.000 claims description 6
- 230000001052 transient effect Effects 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 10
- 238000005480 shot peening Methods 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 3
- 239000013077 target material Substances 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Data Mining & Analysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Pure & Applied Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Computational Mathematics (AREA)
- Thermal Sciences (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Evolutionary Biology (AREA)
- Probability & Statistics with Applications (AREA)
- Operations Research (AREA)
- Algebra (AREA)
- Bioinformatics & Computational Biology (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of shot blasting forming and strengthening, and discloses a method, a system, electronic equipment and a medium for acquiring the number of effective shots, wherein the method comprises the following steps: carrying out shot blasting strip test on the target through a shot blasting process to obtain the moving speed VR of a nozzle, the length l of a strip, the mass M of a single shot and the instantaneous shot blasting mass M; acquiring an instantaneous effective region when the shot-blasting beam impacts the target, and taking the maximum length of the instantaneous effective region perpendicular to the moving speed direction of the nozzle as the width h1 of the strip and the maximum length of the instantaneous effective region parallel to the moving speed direction of the nozzle as the length h2 of the region; the nozzle path of the shot blasting strip test is h2+ l, and the strip shot blasting time t is obtained through a formula t = (h 2+ l)/VR; obtaining the number Nt of the strip effective shots through a formula Nt = Mt/m; the method has the advantages that the effective shot number is calculated according to the actual shot blasting process parameters, the influence of the material structure is avoided, and the accuracy is higher.
Description
Technical Field
The invention relates to the technical field of shot blasting forming and strengthening, in particular to a method, a system, electronic equipment and a medium for acquiring the number of effective shots, which are used for acquiring the number of effective shots in a shot blasting process.
Background
The shot blasting process is widely applied to aerospace manufacturing processes. In the shot blasting process, compressed air or a centrifugal accelerator is used for driving a large amount of shot blasting to be sprayed out from a nozzle 1, as shown in fig. 1, the metal target 2 is impacted, so that dense crater-shaped plastic deformation is formed on the surface of the metal target 2, a residual stress layer is introduced on the surface of the metal target 2, the surface strengthening of the metal target 2 is realized, and the fatigue strength of the surface of the metal target 2 is effectively improved. Meanwhile, the introduction process of the residual stress layer breaks through the balance stress of the metal target 2, and for the thin-wall metal target 2, the unbalanced residual stress drives the metal target 2 to bulge towards the shot blasting impact direction and extend towards the periphery of the shot blasting impact point, so that the non-mold forming of the thin-wall plate can be realized by utilizing the characteristics.
In order to control the forming accuracy, it is necessary to obtain as accurate as possible the number of shots that will effectively impact each region of the metal target. In the prior art, the effective shot number is obtained by adopting finite element simulation and theoretical analysis methods, and results are obtained by shot blasting coverage conversion. For example, in order to calculate the number of shots, in the finite element method, a representative volume element is used to represent a target material in a shot blasting process, when a shot impacts the surface of the representative element at a certain speed, a crater is formed, the diameter of the crater is measured, and the number of shots can be reversely calculated by using a calculation formula of the coverage ratio. Specifically, the ratio of the area covered by the craters per unit area to the unit area of the representative cell is used, and when the ratio is 98%, the coverage is regarded as one time, and then the number of shots at that time is recorded. When the number of the shots is twice of the number of the shots with one-time coverage, the shots are regarded as twice of the coverage, and so on. In the shot blasting process, the mode of estimating the one-time coverage rate is a mode of observing the surface by naked eyes by using a magnifying glass, and the ratio of 98% is estimated to be used as the one-time coverage rate. In general, in the finite element method, the existing method for calculating the number of shots is separated from the test, the calculated number is inaccurate and cannot be matched with the test, and the accuracy of the method for calculating the number of shots in the test is not related to the constitutive of the material and the actual shot blasting process parameters, so the accuracy of the method is questioned to a certain extent.
In particular, in the whole shot blasting process, thousands of shots participate in impacting the metal target, but not every shot sprayed by the nozzle participates in impacting the surface of the part, and the number of massive shots in the actual shot blasting working condition cannot be considered by using the traditional finite element method or the theoretical calculation method.
Disclosure of Invention
In view of the shortcomings of the related art, the present disclosure provides a method, system, electronic device, and medium for obtaining an effective number of shots.
In a first aspect, an embodiment of the present disclosure provides a method for obtaining an effective number of shots, including the following specific steps:
carrying out shot blasting strip test on the target through a shot blasting process to obtain the moving speed VR of a nozzle, the length l of a strip, the mass M of a single shot and the instantaneous shot blasting mass M; acquiring an instantaneous effective region when the shot-blasting beam impacts the target, and taking the maximum length of the instantaneous effective region perpendicular to the moving speed direction of the nozzle as the width h1 of the strip and the maximum length of the instantaneous effective region parallel to the moving speed direction of the nozzle as the length h2 of the region; the nozzle path of the shot blasting strip test is h2+ l, and the strip shot blasting time t is obtained through a formula t = (h 2+ l)/VR; the effective number of shots Nt in the strip is obtained by the formula Nt = Mt/m.
In order to better implement the present invention, further, the effective area of the strip is h1 (h 2+ l); and obtaining an effective sprayed area A of the sprayed target, and obtaining the number N of target effective shots according to a formula N = ANt/h 1 (h 2+ l).
To better practice the invention, further, the width h1 of the illustrated strip is equal to the length h2 of the region when the nozzle angle is perpendicular to the target surface.
In order to better implement the invention, the nozzle angle and/or the nozzle distance in the shot blasting strip experiment are further adjusted to obtain the corresponding effective shot number Nt of the strip at different nozzle angles and/or nozzle distances.
In order to better implement the invention, further, the effective area of the strip is h1 (h 2+ l); and obtaining an effective sprayed area A of the sprayed target, and obtaining the number N of target effective shots according to a formula N = ANt/h 1 (h 2+ l).
In a second aspect, the disclosed embodiment provides a system for acquiring an effective shot number, including a processing unit, and further including a peening parameter acquiring unit and an image acquiring unit, which are in data communication with the processing unit respectively;
the shot blasting parameter acquisition unit is used for acquiring shot blasting parameters in the shot blasting strip test process, wherein the shot blasting parameters comprise nozzle moving speed VR, strip length l, single shot mass M and instantaneous shot blasting mass M;
the image acquisition unit is used for acquiring an image of an instantaneous effective area and a strip image when a shot-blasting beam impacts a target in a shot-blasting strip experiment;
the processing unit is used for taking the maximum length of the instantaneous effective area perpendicular to the nozzle moving speed direction as the width h1 of the strip, taking the maximum length of the instantaneous effective area parallel to the nozzle moving speed direction as the area length h2, and taking the sum of the length l of the strip and the area length h2 as the nozzle path of the shot blasting strip test; dividing the nozzle path by the nozzle moving speed VR to obtain the strip shot blasting time t; and obtaining the effective strip shot number Nt through the strip shot blasting time t, the instantaneous shot blasting quality M and the single shot quality M.
In a third aspect, an embodiment of the present disclosure provides an electronic device, including: a memory and a processor;
wherein the memory is to store a computer program operable on the processor;
the processor is configured to execute the computer program to implement the above method for obtaining the effective projectile count.
In a fourth aspect, embodiments of the present disclosure provide a computer-readable storage medium for storing a computer program,
wherein the computer program when executed by a processor implements a method of obtaining a number of active shots as described above.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, through shot blasting strip test, under the condition of given shot blasting process parameters, shot is used for impacting the surface of a target material with a larger size to leave a crater, and the crater forms a strip along the moving direction of a nozzle; by observing the strip and making reasonable assumptions, assuming that the instantaneous effective area caused by the shot-peening beam of the nozzle is moved from one end of the strip to the other end in a square peened area; formulating the shot blasting area in the positive direction, and using the shot blasting process parameter to form the strip shot blasting time t and the total strip effective shot number Nt falling into the strip within the strip shot blasting time t; and obtaining the number N of target effective shots of the target part which are required to be impacted on the surface of the target part by using an area ratio method.
Drawings
The technical solutions will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention.
FIG. 1 is a schematic diagram illustrating a shot peening stripe test in a method for obtaining an effective shot count according to the present invention;
FIG. 2 is a schematic view showing the transient effective region passing through the shot-peening zone test according to the present invention;
FIG. 3 is a schematic view showing the case where the transient effective region in the shot-peening stripe test is assumed to be a square in the present invention.
Wherein: 1. a nozzle; 2. a target material; 3. a transient effective area; 4. a strip.
Detailed Description
The invention will be described in further detail with reference to the following detailed description of illustrative embodiments. This should not be understood as limiting the scope of the above-described subject matter of the present invention to the following examples. Various substitutions and alterations according to the general knowledge and conventional practice in the art are intended to be included within the scope of the present invention without departing from the technical spirit of the present invention as described above.
Example 1:
in a first aspect, an embodiment of the present disclosure provides a method for obtaining an effective number of shots, as shown in fig. 1, fig. 2, and fig. 3, including the following specific steps:
carrying out a shot blasting strip 4 test on the target 2 through a shot blasting process to obtain the moving speed VR of the nozzle 1, the length l of the strip 44, the mass M of a single shot and the instantaneous shot blasting mass M; acquiring an instantaneous effective region 3 when the shot blasting beam impacts the target 2, and taking the maximum length of the instantaneous effective region 3 perpendicular to the moving speed direction of the nozzle 1 as the width h1 of the strip 44 and the maximum length of the instantaneous effective region 3 parallel to the moving speed direction of the nozzle 1 as the region length h2; the distance of the nozzle 1 of the shot blasting strip 4 test is h2+ l, and the shot blasting time t of the strip 4 is obtained through a formula t = (h 2+ l)/VR; the effective number of shots Nt of the strip 4 is obtained by the formula Nt = Mt/m.
To better implement this embodiment, the effective area of the strip 4 is h1 (h 2+ l); and obtaining the effective sprayed area A of the sprayed target 2, and obtaining the effective projectile number N of the target 2 according to the formula N = ANt/h 1 (h 2+ l).
To better implement this embodiment, the width h1 of the illustrated strip 44 is equal to the zone length h2 when the nozzle 1 is angled perpendicular to the surface of the target 2.
In order to better realize the embodiment, the angle of the nozzle 1 and/or the distance of the nozzle 1 in the experiment of the shot blasting strip 4 is adjusted to obtain the corresponding effective shot number Nt of the strip 4 at different angles of the nozzle 1 and/or different distances of the nozzle 1.
To better implement this embodiment, the effective area of the strip 4 is h1 (h 2+ l); and obtaining the effective sprayed area A of the sprayed target 2, and obtaining the effective projectile number N of the target 2 according to the formula N = ANt/h 1 (h 2+ l).
Example 2:
the embodiment provides a system for acquiring the number of effective shots, which comprises a processing unit, a shot blasting parameter acquisition unit and an image acquisition unit, wherein the shot blasting parameter acquisition unit and the image acquisition unit are respectively in data communication with the processing unit;
the shot blasting parameter acquisition unit is used for acquiring shot blasting parameters in the test process of the shot blasting strip 4, wherein the shot blasting parameters comprise the moving speed VR of the nozzle 1, the length l of the strip 44, the mass M of a single shot and the instantaneous shot blasting mass M;
the image acquisition unit is used for acquiring an image of the instantaneous effective area 3 and an image of the strip 44 when the shot-blasting beam impacts the target 2 in the shot-blasting strip 4 experiment;
the processing unit is used for taking the maximum length of the instantaneous effective area 3 perpendicular to the moving speed direction of the nozzle 1 as the width h1 of the strip 44, taking the maximum length of the instantaneous effective area 3 parallel to the moving speed direction of the nozzle 1 as the area length h2, and taking the sum of the length l of the strip 44 and the area length h2 as the nozzle 1 path of the shot blasting strip 4 test; dividing the distance of the nozzle 1 by the moving speed VR of the nozzle 1 to obtain the shot blasting time t of the strip 4; and obtaining the effective shot number Nt of the strip 4 through the shot blasting time t of the strip 4, the instantaneous shot blasting quality M and the single shot quality M.
Example 3:
the present embodiment provides an electronic device, including: a memory and a processor;
wherein the memory is configured to store a computer program operable on the processor;
the processor is configured to execute the computer program to implement the method of embodiment 1 for obtaining the effective projectile count.
Example 4:
the present embodiment provides a computer-readable storage medium for storing a computer program,
wherein the computer program, when executed by a processor, implements a method of obtaining a valid number of shots of embodiment 1.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (8)
1. A method for obtaining the number of effective shots is characterized by comprising the following specific steps:
carrying out shot blasting strip (4) test on the target (2) through a shot blasting process to obtain the moving speed V of the nozzle (1) R The length l of the strip (4), the mass M of a single shot and the mass M of an instantaneous shot blast; acquiring an instantaneous effective region (3) when the shot blasting beam impacts the target (2), and taking the maximum length of the instantaneous effective region (3) in the direction perpendicular to the moving speed of the nozzle (1) as the width h1 of the strip (4) and the maximum length of the instantaneous effective region (3) in the direction parallel to the moving speed of the nozzle (1) as the region length h2; the distance of the nozzle (1) for the shot-blasting strip (4) test is h2+ l, and the formula t = (h 2+ l)/V R Obtaining the shot blasting time t of the strip (4); the effective shot number Nt of the strip (4) is obtained by the formula Nt = Mt/m.
2. A method for obtaining the number of active shots according to claim 1, characterised in that the active area of the strip (4) is h1 (h 2+ l); and obtaining the effective sprayed area A of the sprayed target (2), and obtaining the effective projectile number N of the target (2) according to the formula N = ANt/h 1 (h 2+ l).
3. A method for obtaining an effective number of shots according to claim 1, characterized in that the width h1 of the strip (4) is equal to the zone length h2 when the nozzle (1) is angled perpendicular to the surface of the target (2).
4. The method of claim 1, wherein the step of obtaining the number of effective shots comprises: and adjusting the angle of the nozzle (1) and/or the distance of the nozzle (1) in the shot blasting strip (4) experiment to obtain the corresponding effective shot number Nt of the strip (4) at different angles of the nozzle (1) and/or different distances of the nozzle (1).
5. The method of claim 4, wherein the effective shot count is obtained by: the effective area of the strip (4) is h1 (h 2+ l); and obtaining an effective sprayed area A of the sprayed target (2), and obtaining the effective shot number N of the target (2) by using a formula N = ANt/h 1 (h 2+ l).
6. A system for obtaining an effective number of projectiles, comprising a processing unit, wherein: the shot blasting system also comprises a shot blasting parameter acquisition unit and an image acquisition unit which are respectively in data communication with the processing unit;
the shot blasting parameter acquisition unit is used for acquiring shot blasting parameters in the test process of the shot blasting strip (4), and the shot blasting parameters comprise the moving speed V of the nozzle (1) R Length l of the strip (4), mass M of a single shot and mass M of an instantaneous shot blast;
the image acquisition unit is used for acquiring an image of a transient effective region (3) and an image of a strip (4) when a shot beam impacts a target (2) in a shot blasting strip (4) experiment;
the processing unit is used for taking the maximum length of the instantaneous effective area (3) in the direction perpendicular to the moving speed direction of the nozzle (1) as the width h1 of the strip (4), taking the maximum length of the instantaneous effective area (3) in the direction parallel to the moving speed direction of the nozzle (1) as the length h2 of the area, and taking the sum of the length l of the strip (4) and the length h2 of the area as the path of the nozzle (1) for testing the shot blasting strip (4); the distance through the nozzle (1) is divided by the speed of movement V of the nozzle (1) R Obtaining the shot blasting time t of the strip (4); and obtaining the effective shot number Nt of the strip (4) through the shot blasting time t, the instantaneous shot blasting quality M and the single shot quality M of the strip (4).
7. An electronic device, comprising: a memory and a processor;
wherein the memory is to store a computer program operable on the processor;
the processor for executing the computer program to implement the method of any one of claims 1-5.
8. A computer-readable storage medium for storing a computer program,
wherein the computer program, when executed by a processor, implements the method of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211010461.8A CN115392022A (en) | 2022-08-23 | 2022-08-23 | Method, system, electronic device and medium for obtaining effective projectile number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211010461.8A CN115392022A (en) | 2022-08-23 | 2022-08-23 | Method, system, electronic device and medium for obtaining effective projectile number |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115392022A true CN115392022A (en) | 2022-11-25 |
Family
ID=84121200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211010461.8A Pending CN115392022A (en) | 2022-08-23 | 2022-08-23 | Method, system, electronic device and medium for obtaining effective projectile number |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115392022A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359365A (en) * | 2018-09-30 | 2019-02-19 | 北京航空航天大学 | A kind of shot-blast process method for numerical simulation considering bullet stochastic effects |
| CN110082559A (en) * | 2019-04-19 | 2019-08-02 | 成都飞机工业（集团）有限责任公司 | Velocity measuring device and speed measurement method during a kind of shot-peening |
-
2022
- 2022-08-23 CN CN202211010461.8A patent/CN115392022A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109359365A (en) * | 2018-09-30 | 2019-02-19 | 北京航空航天大学 | A kind of shot-blast process method for numerical simulation considering bullet stochastic effects |
| CN110082559A (en) * | 2019-04-19 | 2019-08-02 | 成都飞机工业（集团）有限责任公司 | Velocity measuring device and speed measurement method during a kind of shot-peening |
Non-Patent Citations (1)
| Title |
|---|
| CHENGYU WANG等: "An improved approach to direct simulation of an actual Almen shot peening intensity test with a large number of shots", MATERIALS, vol. 13, no. 22, pages 3 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9063049B2 (en) | Apparatus and method for quantifying metal surface treatment | |
| US7762911B2 (en) | Method for predicting ball launch conditions | |
| GB2429411A (en) | Method of predicting golf ball launch conditions | |
| CN108169714B (en) | Positioning method and device based on vibration waves | |
| CN110082559B (en) | Speed measuring device and speed measuring method in shot blasting process | |
| CN111814373B (en) | Prediction method for microscopic tissue evolution of shot peening reinforced material | |
| CN112629725B (en) | Method for testing residual stress of piston rod spraying coating | |
| JP2019030505A (en) | Rigidity characteristic measurement device | |
| CN114492113A (en) | Impact damage numerical simulation optimization method based on laser mapping entity grid | |
| CN103255268A (en) | Method for optimizing thickness in process of simultaneously impacting alloy by using lasers from two sides | |
| CN115436651B (en) | Method, system, electronic equipment, medium and application for measuring speed of projectile | |
| CN115392022A (en) | Method, system, electronic device and medium for obtaining effective projectile number | |
| CN113642175B (en) | Shot peening deformation numerical simulation method considering coverage rate and path | |
| KR20140099199A (en) | Method for extracting impact time in golf swing | |
| CN111220131A (en) | Shot blasting machine shot projection angle and speed detection method based on two-dimensional vision | |
| CN116050138A (en) | Step slope motion parameter acquisition method applied to surface blasting | |
| CN109406327A (en) | A kind of evaluation of uncertainty in measurement method of impact force traceability system | |
| CN107899225B (en) | Table tennis serving score identification method based on motion trail | |
| CN115732043A (en) | Method for predicting grain size distribution along target depth in shot peening | |
| CN111307213B (en) | Method for detecting projectile throwing force, angle and speed of shot blasting machine | |
| Xie et al. | Speed and spin of 40mm table tennis ball and the effects on elite players | |
| CN112710196A (en) | Target design method based on structural equivalence | |
| CN106353186A (en) | Test method for determining recovery coefficient in metal material contact-impact | |
| CN115758811A (en) | Method for predicting shot peening coverage rate of spiral bevel gear | |
| CN114912312A (en) | Simulation method for shot peening strengthening of simulation shot oblique incidence structural part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221125 |