Method and device for designing shot peening forming speed of continuous variable-thickness variable-curvature skin

Abstract

The invention provides a shot peening forming speed design method and device for a continuous variable-thickness variable-curvature skin. The method comprises the steps that the chordwise cross-sectional inertia moment, the spanwise cross-sectional inertia moment and the chordwise curvature radius of each micro-area are obtained; the target curvature radius of the target test area is calculated, and the chordwise reference shot blasting speed and the spanwise reference shot blasting speed are obtained; for each micro-area, determining a chordwise shot peening forming speed based on the spanwise cross-sectional inertia moment and chordwise curvature radius of the micro-area, the spanwise cross-sectional inertia moment and chordwise curvature radius of the target test area and a chordwise reference shot peening speed; based on the chordwise sectional inertia moment and the chordwise curvature radius of the micro-area, the chordwise sectional inertia moment and the chordwise curvature radius of the target test area and the spanwise reference shot peening speed, the spanwise shot peening forming speed is determined; finally, the shot peening forming speed of each micro-area is obtained; and through infinitely subdividing the micro-area, the precise speed of shot blasting on the variable-thickness and variable-curvature part is calculated, so that the theoretical curvature appearance of the skin is infinitely approached.

Description

Technical Field

[0001] The invention belongs to the technical field of shot peening forming of skin parts, and in particular relates to a shot peening forming speed design method and device for skin with continuously variable thickness and curvature. Background Art

[0002] The basic principle of shot peening is to use high-speed metal projectiles to hit the surface of the part, causing a residual stress layer to form on the metal surface. The surface material extends around the crater. After the strength exceeds the elastic limit, plastic deformation occurs in the surface area, which manifests itself macroscopically as the part bulging toward the sprayed surface and producing bending deformation.

[0003] For skin parts, the area where the thickness continuously changes more than 3mm / 1m and the curvature radius continuously changes more than 6000mm / 1m is defined as the continuous variable thickness and curvature area. Using the traditional chord-wise shot peening forming speed design method in the equal thickness area, the forming curvature of the skin is poorly consistent with the theoretical shape, which is due to the neglect of the elastic deformation difference caused by the continuous change of skin thickness. Summary of the invention

[0004] In order to solve the technical problem that the curvature of the skin is poorly consistent with the theoretical shape when the chord-wise shot peening parameter design method of the equal-thickness zone is used in the related art, the present invention provides a shot peening forming speed design method and device for the skin with continuously variable thickness and variable curvature, taking the shot peening speed of the test piece as the reference shot peening speed, and calculating the shot peening forming speed corresponding to the target forming curvature according to the relationship between the moment of inertia of the section and the radius of curvature of each micro-area. The technical scheme is as follows:

[0005] In a first aspect, a method for designing shot peening speed of a skin with continuously variable thickness and curvature is provided, the method comprising:

[0006] Step 1: Subdividing the shot peening area into multiple micro-areas based on thickness;

[0007] Step 2, obtaining the chord-wise moment of inertia and span-wise moment of inertia of each micro-region, as well as the chord-wise radius of curvature;

[0008] Step 3: Select the thinnest micro-area as the target test area, calculate the target curvature radius of the micro-area, and use the corresponding shot peening speed as the reference shot peening speed v 0 , and the reference shot peening speed v 0 Decompose along the chord direction and span direction to obtain the chord direction reference shot peening velocity v 0y and spanwise reference shot peening speed v 0x ;

[0009] Step 4: For each micro-area, based on the spanwise moment of inertia and chord-wise radius of curvature of the micro-area, the spanwise moment of inertia and chord-wise radius of curvature of the target test area, and the reference shot peening speed v0 Decomposed chord-wise reference shot peening velocity v 0y , determine the chordal shot peening speed v iy Based on the chordal section inertia moment and chordal curvature radius of the micro-area, the chordal section inertia moment and chordal curvature radius of the target test area, and the reference shot peening speed v 0 Decomposed spanwise reference shot peening velocity v 0x , determine the spanwise shot peening speed v ix ;

[0010] Step 5: Set the chordal shot peening speed v iy and spanwise reference shot peening speed v 0x The shot peening speed v of each micro-area is obtained by synthesis. i , i is the micro-area number.

[0011] Furthermore, the method further comprises:

[0012] Step 6: Keep the processing parameters except the shot peening speed consistent with the test piece parameters, and shot peen the skin parts according to the shot peening forming speed corresponding to each micro-area to obtain the required target forming curvature radius.

[0013] Optionally, the processing parameters are shot peening pressure, flow rate, and shot peening distance.

[0014] Optionally, in step 4, the chordal shot peening speed v is determined iy The specific ones include:

[0015] Calculate the spanwise section moment of inertia I of the target test area e0x The chordal curvature radius R of micro-region i i The product of I e0x R i ,

[0016] Calculate the spanwise section inertia moment I of micro-region i eix The chordal curvature radius R of the target test area 0 The product of I eix R 0 ,

[0017] Calculate v iy =(I e0x R i / I eix R 0 )*v 0y .

[0018] Optionally, in step 4, the spanwise shot peening speed v is determined ix The specific ones include:

[0019] Calculate the chord-direction section inertia moment I of the target test areae0y The chordal curvature radius R of micro-region i i The product of I e0y R i ,

[0020] Calculate the chord-direction section inertia moment I of microregion i eiy The chordal curvature radius R of the target test area 0 The product of I ei R 0 ,

[0021] Calculate v ix =(I e0y R i / I eiy R 0 )*v 0x .

[0022] In a second aspect, a device for designing shot peening speed of a skin with continuously variable thickness and curvature is provided, which is used to execute any method described in the first aspect, and the device comprises:

[0023] A partitioning module for subdividing the peening area into multiple micro-zones based on thickness;

[0024] An acquisition module is used to obtain the chord-wise section moment of inertia and span-wise section moment of inertia of each micro-region, as well as the chord-wise curvature radius;

[0025] The calculation module is used to select the thinnest micro-area as the target test area, calculate the target curvature radius of the micro-area, and use the corresponding shot peening speed as the reference shot peening speed v 0 , and the reference shot peening speed v 0 Decompose along the chord direction and span direction to obtain the chord direction reference shot peening velocity v 0y and spanwise reference shot peening speed v 0x ;

[0026] The determination module is used for determining, for each micro-area, the spanwise section inertia moment and the chord-wise curvature radius of the micro-area, the spanwise section inertia moment and the chord-wise curvature radius of the target test area, and the reference shot peening speed v 0 Decomposed chord-wise reference shot peening velocity v 0y , determine the chordal shot peening speed v iy Based on the chordal section inertia moment and chordal curvature radius of the micro-area, the chordal section inertia moment and chordal curvature radius of the target test area, and the reference shot peening speed v 0 Decomposed spanwise reference shot peening velocity v 0x , determine the spanwise shot peening speed v ix ;

[0027] Synthesis module for converting the chordal shot peening velocity v iyand spanwise reference shot peening speed v 0x The shot peening speed v of each micro-area is obtained by synthesis. i , i is the micro-area number.

[0028] Optionally, a module is determined, specifically for:

[0029] Calculate the spanwise section moment of inertia I of the target test area e0x The chordal curvature radius R of micro-region i i The product of I e0x R i ,

[0030] Calculate the spanwise section inertia moment I of micro-region i eix The chordal curvature radius R of the target test area 0 The product of I eix R 0 ,

[0031] Calculate v iy =(I e0x R i / I eix R 0 )*v 0y .

[0032] Optionally, the determination module is further specifically used for:

[0033] Calculate the chord-direction section inertia moment I of the target test area e0y The chordal curvature radius R of micro-region i i The product of I e0y R i ,

[0034] Calculate the chord-direction section inertia moment I of microregion i eiy The chordal curvature radius R of the target test area 0 The product of I ei R 0 ,

[0035] Calculate v ix =(I e0y R i / I eiy R 0 )*v 0x .

[0036] In a third aspect, a shot peening forming speed design device for a skin with continuously variable thickness and curvature is provided, comprising a processor and a memory, wherein the processor is configured to execute instructions stored in the memory, and the processor implements any design method described in the first aspect by executing the instructions.

[0037] In a fourth aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium. When the instructions are executed on a processing component of a computer, the processing component executes any design method described in the first aspect.

[0038] In a fifth aspect, a computer program product comprising instructions is provided, and when the computer program product is run on a computer, the computer is enabled to execute any design method described in the first aspect.

[0039] The beneficial effects of the present invention are at least:

[0040] Compared with the traditional method of designing the speed of shot peening in equal thickness areas, the present invention divides micro-areas based on the thickness difference of parts, and calculates the shot peening speed of each micro-area along the x-direction (span direction) and the y-direction (chord direction) according to the relationship between the shot peening speed, the moment of inertia of the section and the radius of curvature. By infinitely subdividing the micro-areas, the precise speed of shot peening on parts with variable thickness and curvature can be calculated, thereby infinitely approaching the theoretical curvature shape of the skin;

[0041] Compared with the traditional shot peening forming speed design method, the present invention can form the target curvature radius by only adjusting the shot peening speed and keeping other parameters unchanged, which has the characteristics of controllable parameters and strong feasibility.

[0042] Different from the traditional shot peening speed design method that only considers a single direction, the present invention designs the shot peening speed based on the section inertia moment and curvature radius in both the chord and span directions of the part, and then synthesizes the component velocities in each direction into the combined shot peening speed along the direction of maximum curvature, thereby more accurately designing a shot peening speed that meets the curvature shape of the skin. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a flow chart of a shot peening forming speed design method for a continuously variable thickness and variable curvature skin of the present invention;

[0044] Figure 2 This is a schematic diagram of micro-region division of the continuously variable thickness and variable curvature region of the present invention;

[0045] Figure 3 It is a schematic diagram of the calculation of the micro-area shot peening forming speed in the region of continuous variable thickness and variable curvature according to the present invention.

[0046] In the figure: 1-10 represent the micro-area division boundaries of the parts; are the micro-areas after division; 11 represents the skin parts; 12 represents the direction line of maximum curvature of the parts. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below through specific implementation modes and drawings.

[0048] In the embodiment of the present invention, according to the relationship between the shot peening forming curvature radius and the thickness, it can be known that the forming curvature radius is proportional to the square of the thickness, and a slight change in the skin thickness can have a greater impact on the forming curvature radius. For a continuously variable thickness and curvature region of a certain skin part, the shot peening region is refined into multiple micro-regions based on the thickness difference of the region, and the shot peening speed can be designed through theoretical calculation.

[0049] In the embodiment of the present invention, in order to facilitate the design of shot peening speed, the rib direction (chord direction) of the skin part is recorded as the y direction, and the long stringer direction (span direction) of the skin part perpendicular thereto is recorded as the x direction.

[0050] In one embodiment of the present invention, a certain skin part is taken as an example, the chordal curvature radius of the whole part varies in the range of 3.6 to 59 mm, and the thickness varies in the range of 4.5 to 15.8 mm. Figure 2 As shown in the figure, the thickness of the skin varies from 1 to 4 in the range of 11.94 to 15.79 mm, and the radius of curvature in the chord direction varies from 4628.0 to 11210.7 mm, which is the continuous variable thickness and curvature area of ​​the part. A shot peening forming speed design method for a continuously variable thickness and curvature skin, see Figure 1 The specific implementation process may include the following steps:

[0051] Step 1: For the continuously variable thickness and curvature region of the part, the following micro-region division principle is formulated based on the thickness difference: taking the boundary of the region as the starting point a, corresponding to Figure 2 1, first measure the thickness along the span direction (long stringer direction) of the part, and record the position where the thickness exceeds the starting point by 2mm as point b, corresponding to Figure 2 2, the area from 1 to 2 is recorded as the micro-zone boundary, and so on; then the thickness is measured along the chord direction (rib direction) of the part, the method is the same as above, and no further description is given, and the complete micro-zone boundary can be obtained, so that the shot peening area is refined into multiple micro-zones, such as Figure 2 shown.

[0052] Step 2: Measure the section inertia moment of each micro-area along the chord direction and span direction of the continuously variable thickness and variable curvature region, such as Figure 2 1 to 4 and 5 to 10 shown, with the help of three-dimensional analysis software, the chord-wise section moment of inertia and span-wise section moment of inertia, as well as the chord-wise curvature radius of each micro-region of the skin part are statistically analyzed.

[0053] Specifically, the micro-regions of the skin parts can be projected onto a two-dimensional plane along the x-direction (span direction) and the y-direction (chord direction) with the help of three-dimensional analysis software to calculate the section moment of inertia of each micro-region. The calculated section moment of inertia in the chord direction is shown in Table 1, and the section moment of inertia in the span direction is shown in Table 2. The statistical chord-direction curvature radius is shown in Table 3.

[0054] Table 1 The chord-direction section inertia moment of each micro-region in the region of continuous variable thickness and variable curvature (unit: mm 4 )

[0055] 1～2 2～3 3～4 10～9 35257.2251 48382.2833 11442.8619 9～8 30859.3618 49438.4630 21896.9048 8～7 27658.9544 48046.0140 21037.8053 7～6 30578.9767 37426.5654 21981.5033 6～5 34877.5029 45285.0049 25011.7831

[0056] Table 2 Spanwise section moment of inertia of each micro-region in the region of continuous variable thickness and variable curvature (unit: mm 4 )

[0057]

[0058] Table 3 The chordal curvature radius of each micro-region in the continuously variable thickness and variable curvature region (unit: m)

[0059] 1～2 2～3 3～4 10～9 10.41 7.79 6.39 9～8 10.90 9.45 8.08 8～7 11.21 10.18 9.33 7～6 7.20 6.93 6.86 6～5 4.95 4.85 4.63

[0060] Step 3: Select the thinnest micro-area as the target test area, calculate the target curvature radius of the micro-area, and use the corresponding shot peening speed as the reference shot peening speed v 0 , and the reference shot peening speed v 0 Decompose along the chord direction and span direction to obtain the chord direction reference shot peening velocity v 0y and spanwise reference shot peening speed v 0x .

[0061] like Figure 2 The microregion shown Assume micro-region For a 2024HDT-T351 aluminum alloy sheet with a size of 400mm×150mm×14mm, first follow the formula Calculate the target chordal curvature radius R y =5m, target spanwise curvature radius R x =100m. Where b is the span of the curvature meter and h is the arc height value, which can be measured by the curvature meter. Next, the shot peening path takes the direction of the maximum curvature of the skin part, and the shot peening speed is set to v 0 ', according to the relationship that "the shot peening speed is proportional to the curvature radius of the forming part", when the curvature radius of the forming part is smaller than the theoretical curvature radius, a higher speed is used for shot peening, otherwise a lower speed is used. By doing this, the shot peening speed corresponding to the target curvature radius can be obtained, and then the shot peening speed is used as the reference shot peening speed v 0 Finally, the baseline shot peening speed v 0 Decompose along the chord direction and span direction to obtain v 0y =0.2m / min, v 0x =4.0m / min.

[0062] Step 4: For each micro-area, based on the spanwise moment of inertia and chord-wise radius of curvature of the micro-area, the spanwise moment of inertia and chord-wise radius of curvature of the target test area, and the reference shot peening speed v 0 Decomposed chord-wise reference shot peening velocity v 0y , determine the chordal shot peening speed v iy Based on the chordal section inertia moment and chordal curvature radius of the micro-area, the chordal section inertia moment and chordal curvature radius of the target test area, and the reference shot peening speed v 0 Decomposed spanwise reference shot peening velocity v 0x , determine the spanwise shot peening speed v ix ; The chordal shot peening speed v iy and spanwise reference shot peening speed v 0x The shot peening speed v of each micro-area is obtained by synthesis. i .

[0063] According to the "shot peening speed v and cross-sectional inertia moment I e Inversely proportional to the curvature radius R of the shot peening, the relationship is established: So the cross-sectional inertia moment I of each micro-region is calculated. e0 R i and I ei R 0 The ratio of the standard shot peening speed v 0 , the shot peening speed v of each micro-area can be calculated i i is the micro-area number, R 0 Represents micro-area The radius of curvature in the chord direction. e0 Represents micro-area The moment of inertia of the area.

[0064] First, according to the formula Calculate the chordal shot peening velocity v of micro-area i iy It should be noted that when calculating the chordal shot peening speed v iy When , the spanwise section inertia moment of micro-area i and the spanwise section inertia moment of micro-area 0 are substituted into the formula for calculation. That is, the spanwise section inertia moment I of the target test area is calculated first. e0x The chordal curvature radius R of micro-region i i The product of I e0x R i , and then calculate the spanwise section inertia moment I of micro-region i eix The chordal curvature radius R of the target test area 0 The product of I eix R 0 Then calculate v iy =(I e0x Ri / I eix R 0 )*v 0y .

[0065] Then, according to the formula Calculate the spanwise shot peening velocity v of micro-area i ix It should be noted that when calculating the spanwise shot peening speed v ix When , the chord-directed section inertia moment of micro-area i and the chord-directed section inertia moment of micro-area 0 are substituted into the formula for calculation. That is, the chord-directed section inertia moment I of the target test area is calculated first. e0y The chordal curvature radius R of micro-region i i The product of I e0y R i , and then calculate the chord-direction section inertia moment I of micro-region i eiy The chordal curvature radius R of the target test area 0 The product of I ei R 0 Then calculate v ix =(I e0y R i / I eiy R 0 )*v 0x .

[0066] Then, the chordal peening speed v of micro-area i is iy and spanwise shot peening speed v ix The shot peening speed v of micro-area i is obtained by synthesis. i .

[0067] Assume that the angle between the shot peening velocity direction and the part span direction is θ, such as Figure 3 As shown, v ix =v i ×cosθ,v iy =v i × sinθ. The shot peening speed is taken as 12 in the direction of the maximum curvature of the part. In this embodiment, the angle θ between the maximum curvature direction and the span direction of the part is 2-4°, then v ix =v i ×cosθ≈v i . The cross-sectional inertia moments of each micro-region along the span are similar, so the v of each micro-region iy The values ​​are similar and can be regarded as the reference speed v 0y .

[0068] by Figure 2 Take the micro-area ③ shown in the figure as an example for calculation.

[0069]

[0070] by Figure 2 Take the micro-area ⑦ shown in the figure as an example for calculation.

[0071]

[0072] by Figure 2 The microregion shown Take the calculation as an example,

[0073]

[0074] The calculation process of the remaining micro-areas is the same as above and will not be repeated here. The shot peening forming speed of each micro-area can be obtained by calculation, see Table 4.

[0075] Table 4 Shot peening speed of each micro-area in the area of ​​continuous variable thickness and variable curvature (unit: m / min)

[0076] 10～9 9～8 8～7 7～6 6～5 1～2 8.3 9.9 11.4 6.6 4.0 2～3 4.5 5.4 5.9 5.2 3.0 3～4 15.7 10.4 12.5 8.8 5.2

[0077] In another embodiment, a shot peening forming speed design method for a skin with continuously variable thickness and curvature provided by the present invention may include, in addition to steps 1 to 4 in the above embodiment, further including: step 5, keeping processing parameters other than the shot peening speed, such as shot peening pressure, flow rate, shot peening distance, etc. consistent with the test piece parameters, and shot peening the skin parts according to the shot peening forming speed corresponding to each micro-area to obtain the desired target forming curvature radius.

[0078] In this embodiment, the shot peening forming speed calculated as above is used to process the continuously variable thickness and curvature area of ​​the skin part, and the gap between the shape and the template is detected on the frame template (the theoretical gap value between the skin part shape and the template is 0). Specific data are shown in Table 5.

[0079] Table 5 Clearance values ​​of contour patch panels in the area of ​​continuous variable thickness and curvature (unit: mm)

[0080] 10～9 9～8 8～7 7～6 6～5 1～2 0.4 0.2 0.3 0.3 0.4 2～3 0.5 0.3 0.4 0.4 0.5 3～4 0.5 0.2 0.3 0.4 0.5

[0081] In actual engineering production, according to the precise design method of shot peening forming speed of a continuously variable thickness and variable curvature skin proposed by the present invention, the continuously variable thickness and variable curvature region can be divided into multiple micro-regions based on the thickness difference, and then the shot peening forming speed of each micro-region is calculated, so as to obtain a skin part that conforms to the curvature shape. The important significance of the present invention is that by infinitely subdividing the micro-region, the precise speed of shot peening on a variable thickness and variable curvature part can be calculated, thereby infinitely approaching the theoretical curvature shape of the skin part.

[0082] An embodiment of the present invention further provides a device for designing shot peening speed of a skin with continuously variable thickness and curvature, which is used to execute the method described in the method embodiment of the present invention, and the device comprises:

[0083] A partitioning module for subdividing the peening area into multiple micro-zones based on thickness;

[0084] An acquisition module is used to obtain the chord-wise section moment of inertia and span-wise section moment of inertia of each micro-region, as well as the chord-wise curvature radius;

[0085] The calculation module is used to select the thinnest micro-area as the target test area, calculate the target curvature radius of the micro-area, and use the corresponding shot peening speed as the reference shot peening speed v 0 , and the reference shot peening speed v 0 Decompose along the chord direction and span direction to obtain the chord direction reference shot peening velocity v 0y and spanwise reference shot peening speed v 0x ;

[0086] The determination module is used for determining, for each micro-area, the spanwise section inertia moment and the chord-wise curvature radius of the micro-area, the spanwise section inertia moment and the chord-wise curvature radius of the target test area, and the reference shot peening speed v 0 Decomposed chord-wise reference shot peening velocity v 0y , determine the chordal shot peening speed v iy Based on the chordal section inertia moment and chordal curvature radius of the micro-area, the chordal section inertia moment and chordal curvature radius of the target test area, and the reference shot peening speed v 0 Decomposed spanwise reference shot peening velocity v 0x , determine the spanwise shot peening speed v ix ;

[0087] Synthesis module for converting the chordal shot peening velocity v iy and spanwise reference shot peening speed v 0x The shot peening speed v of each micro-area is obtained by synthesis. i , i is the micro-area number.

[0088] In one implementable manner, a module is determined, specifically for:

[0089] Calculate the spanwise section moment of inertia I of the target test area e0x The chordal curvature radius R of micro-region i i The product of I e0x R i ,

[0090] Calculate the spanwise section inertia moment I of micro-region i eix The chordal curvature radius R of the target test area 0 The product of I eix R 0 ,

[0091] Calculate v iy =(I e0xR i / I eix R 0 )*v 0y .

[0092] In an implementable manner, the determining module is further specifically configured to:

[0093] Calculate the chord-direction section inertia moment I of the target test area e0y The chordal curvature radius R of micro-region i i The product of I e0y R i ,

[0094] Calculate the chord-direction section inertia moment I of microregion i eiy The chordal curvature radius R of the target test area 0 The product of I ei R 0 ,

[0095] Calculate v ix =(I e0y R i / I eiy R 0 )*v 0x .

[0096] An embodiment of the present invention also provides a shot peening forming speed design device for a skin with continuously variable thickness and curvature, comprising a processor and a memory, wherein the processor is configured to execute instructions stored in the memory, and the processor implements the design method described in the method embodiment of the present invention by executing the instructions.

[0097] An embodiment of the present invention further provides a computer-readable storage medium, in which instructions are stored. When the instructions are executed on a processing component of a computer, the processing component executes the design method described in the method embodiment of the present invention.

[0098] An embodiment of the present invention further provides a computer program product comprising instructions, and when the computer program product is run on a computer, the computer is enabled to execute the design method described in the method embodiment of the present invention.

[0099] The above only expresses the implementation mode of the present invention, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. In addition, the parts not detailed in the present invention are all conventional technologies.

Claims

1. A shot peening forming speed design method for a skin with continuously variable thickness and curvature, characterized in that: The method comprises: Step 1: Subdividing the shot peening area into multiple micro-areas based on thickness; Step 2, obtaining the chord-wise moment of inertia and span-wise moment of inertia of each micro-region, as well as the chord-wise radius of curvature; Step 3: Select the micro-area with the thinnest thickness as the target test area, calculate the target curvature radius of the micro-area, use the corresponding shot peening speed as the reference shot peening speed v0, and decompose the reference shot peening speed v0 along the chord direction and span direction to obtain the chord-wise reference shot peening speed v 0y and spanwise reference shot peening speed v 0x ; Step 4: For each micro-area, based on the spanwise section inertia moment and chord-wise curvature radius of the micro-area, the spanwise section inertia moment and chord-wise curvature radius of the target test area, and the chord-wise reference peening speed v0 decomposed from the reference peening speed v0, 0y , determine the chordal shot peening speed v iy Based on the chord-wise section inertia moment and chord-wise curvature radius of the micro-area, the chord-wise section inertia moment and chord-wise curvature radius of the target test area, and the spanwise reference peening speed v obtained by decomposing the reference peening speed v0 0x , determine the spanwise shot peening speed v ix ; Step 5: Set the chordal shot peening speed v iy and spanwise reference shot peening speed v 0x The shot peening speed v of each micro-area is obtained by synthesis. i , i is the micro-area number.

2. The method according to claim 1, characterized in that The method further comprises: Step 6: Keep the processing parameters except the shot peening speed consistent with the test piece parameters, and shot peen the skin parts according to the shot peening forming speed corresponding to each micro-area to obtain the required target forming curvature radius.

3. The method according to claim 2, characterized in that The processing parameters are shot peening pressure, flow rate and shot peening distance.

4. The method according to claim 1, characterized in that: Determine the chordal shot peening velocity v in step 4 iy The specific ones include: Calculate the spanwise section moment of inertia I of the target test area e0x The chordal curvature radius R of micro-region i i The product of I e0x R i , Calculate the spanwise section moment of inertia I of micro-region i eix The product of the chordal curvature radius R0 of the target test area I eix R0, Calculate v iy =(I e0x R i / I eix R0)*v 0y .

5. The method according to claim 1, characterized in that Determine the spanwise shot peening speed v in step 4 ix The specific ones include: Calculate the chord-direction section inertia moment I of the target test area e0y The chordal curvature radius R of micro-region i i The product of I e0y R i , Calculate the chord-direction section inertia moment I of microregion i eiy The product of the chordal curvature radius R0 of the target test area I ei R0, Calculate v ix =(I e0y R i / I eiy R0)*v 0x .

6. A shot peening forming speed design device for a continuously variable thickness and curvature skin, characterized in that: Used to perform the method according to any one of claims 1 to 5, the device comprises: A partitioning module for subdividing the peening area into multiple micro-zones based on thickness; An acquisition module is used to obtain the chord-wise section moment of inertia and span-wise section moment of inertia of each micro-region, as well as the chord-wise curvature radius; The calculation module is used to select the thinnest micro-area as the target test area, calculate the target curvature radius of the micro-area, use the corresponding shot peening speed as the reference shot peening speed v0, and decompose the reference shot peening speed v0 along the chord direction and span direction to obtain the chord direction reference shot peening speed v 0y and spanwise reference shot peening speed v 0x ; A determination module is used for determining, for each micro-area, a chord-wise reference shot peening speed v obtained by decomposing the reference shot peening speed v0 based on the span-wise section inertia moment and chord-wise curvature radius of the micro-area, the span-wise section inertia moment and chord-wise curvature radius of the target test area, and the chord-wise reference shot peening speed v0. 0y , determine the chordal shot peening speed v iy Based on the chord-wise section inertia moment and chord-wise curvature radius of the micro-area, the chord-wise section inertia moment and chord-wise curvature radius of the target test area, and the spanwise reference peening speed v obtained by decomposing the reference peening speed v0 0x , determine the spanwise shot peening speed v ix ; Synthesis module for converting the chordal shot peening velocity v iy and spanwise reference shot peening speed v 0x The shot peening speed v of each micro-area is obtained by synthesis. i , i is the micro-area number.

7. The device according to claim 6, characterized in that Identify modules, specifically for: Calculate the spanwise section moment of inertia I of the target test area e0x The chordal curvature radius R of micro-region i i The product of I e0x R i , Calculate the spanwise section moment of inertia I of micro-region i eix The product of the chordal curvature radius R0 of the target test area I eix R0, Calculate v iy =(I e0x R i / I eix R0)*v 0y .

8. The device according to claim 6, characterized in that Determine the module, and specifically use it for: Calculate the chord-direction section inertia moment I of the target test area e0y The chordal curvature radius R of micro-region i i The product of I e0y R i , Calculate the chord-direction section inertia moment I of microregion i eiy The product of the chordal curvature radius R0 of the target test area I ei R0, Calculate v ix =(I e0y R i / I eiy R0)*v 0x .

9. A shot peening forming speed design device for a continuously variable thickness and curvature skin, characterized in that: The invention comprises a processor and a memory, wherein the processor is configured to execute instructions stored in the memory, and the processor implements the identification method according to any one of claims 1 to 5 by executing the instructions.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores instructions, and when the instructions are executed on a processing component of a computer, the processing component executes the design method described in any one of claims 1 to 5.

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