A non-normal penetration test device for multilayer structures and method of use thereof

Abstract

The application belongs to the technical field of penetration test, and discloses a non-normal penetration test device for a multilayer structure and a use method thereof, which comprises a test table body, a plurality of target body fixing clamps and a plurality of target bodies. The test table body is horizontally arranged, the plurality of target body fixing clamps are sequentially and spacedly arranged along the long axis center line of the test table body, and the plurality of target bodies are respectively installed at the top ends of the target body fixing clamps. The target body fixing clamps are used for clamping and fixing the target bodies and can adjust the horizontal angle and the pitch angle of the target bodies. The long axis center line of the test table body is sequentially provided with the plurality of target body fixing clamps, and the horizontal angle and the pitch angle of the target bodies are adjusted by the target body fixing clamps, so that the actual target angle of the projectile body can be truly simulated, and the authenticity and accuracy of the penetration test result are ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of penetration test, and particularly relates to a non-normal penetration test device for a multi-layer structure and a use method thereof. BACKGROUND

[0002] Penetration test is a weapon test for measuring the damage caused by the penetration of a killing element formed after the explosion of a projectile into a target; in order to study the movement law and penetration consequences under the action of non-normal penetration of a projectile, a non-normal penetration test is usually needed; for the non-normal penetration test, a penetration test table with a preset oblique angle is often needed, and the reasonable installation of the penetration test table and the target is an important guarantee for the accurate setting of experimental parameters and plays an important role in the test results.

[0003] At present, most of the existing non-normal penetration test tables can only meet the setting of a single plane angle, that is, the target can only rotate in one direction, and the oblique angle generated is located in the same plane; however, the actual projectile attack process is complex, and the angle is often three-dimensional; therefore, the existing single-plane non-normal penetration test table cannot meet the simulation of the actual target angle of the projectile, resulting in a large error in the results of the non-normal penetration test. SUMMARY

[0004] In view of the technical problems in the prior art, the present application provides a non-normal penetration test device for a multi-layer structure and a use method thereof, so as to solve the technical problem that the existing non-normal penetration test table cannot meet the simulation of the actual target angle of the projectile.

[0005] To achieve the above-mentioned purposes, the technical scheme adopted by the present application is as follows:

[0006] The present application provides a non-normal penetration test device for a multi-layer structure, comprising a test table body, a plurality of target body fixing clamps and a plurality of target bodies;

[0007] The test table body is horizontally arranged, the plurality of target body fixing clamps are arranged along the long axis center line of the test table body at intervals, and the plurality of target bodies are respectively arranged at the top end of the target body fixing clamps; wherein the target body fixing clamp is used for clamping and fixing the target body and can adjust the horizontal angle and the pitch angle of the target body.

[0008] Further, the target body fixing clamp comprises a pitch rotation platform, a horizontal rotation platform and two target body fixing clamps;

[0009] The pitch rotation platform is rotatably arranged on the top surface of the test table body; wherein the rotation axis of the pitch rotation platform is arranged in parallel with the short axis center line of the test table body; the horizontal rotation platform is rotatably arranged on the top surface of the pitch rotation platform; wherein the rotation axis of the horizontal rotation platform is perpendicular to the top surface of the pitch rotation platform;

[0010] Two target body fixing clamping plates are arranged in parallel and symmetrically on the top surface of the horizontal rotating platform; the target body is arranged vertically above the top surface of the horizontal rotating platform, and the bottom end of the target body is detachably installed between the two target body fixing clamping plates.

[0011] Further, the top surface of the test bench body is provided with a plurality of semicylindrical grooves, and the semicylindrical grooves are arranged in sequence and in parallel along the long axis center line of the test bench body; wherein the long axis direction of the semicylindrical groove is parallel to the short axis direction of the test bench body.

[0012] The plurality of pitch rotating platforms are all semicylindrical structures and are arranged in one-to-one correspondence in the plurality of semicylindrical grooves; wherein the long axis of the pitch rotating platform is parallel to the long axis of the semicylindrical groove, and the circumferential surface of the pitch rotating platform is in contact with the arc-shaped groove bottom of the semicylindrical groove.

[0013] Further, the circumferential side of the pitch rotating platform is provided with a plurality of pitch rotary table stop holes; the pitch rotary table stop holes are arranged uniformly close to the circumferential side of the pitch rotating platform and are arranged longitudinally along the long axis direction of the pitch rotating platform.

[0014] The long side of the test bench body is provided with a plurality of pitch rotary table locking holes, and the pitch rotary table locking holes are arranged in one-to-one correspondence with the semicylindrical grooves and are arranged through the groove wall of the semicylindrical groove; wherein the pitch rotary table locking holes are arranged longitudinally along the short axis direction of the test bench body.

[0015] A pitch rotary table stop rod is further arranged between the pitch rotating platform and the test bench body, and the pitch rotary table stop rod is sequentially inserted and fixed in the pitch rotary table locking hole and one of the pitch rotary table stop holes, so as to lock and fix the pitch rotating platform and the test bench body together.

[0016] Further, the top surface of the pitch rotating platform is a rectangular plane end, and the center of the top surface of the pitch rotating platform is provided with a circular mounting groove; the horizontal rotating platform is a cylindrical structure, and the horizontal rotating platform is coaxially and rotatably installed in the circular mounting groove; wherein the bottom end of the horizontal rotating platform is arranged in the circular mounting groove, and the top end of the horizontal rotating platform extends to the outside of the top surface of the pitch rotating platform.

[0017] Further, a plurality of horizontal rotary table stop holes are uniformly arranged on the lower end circumference of the horizontal rotating platform, and the horizontal rotary table stop holes are arranged longitudinally along the diameter of the horizontal rotating platform.

[0018] The horizontal rotating platform is provided with a horizontal rotating platform locking hole, which is arranged close to the top surface of the horizontal rotating platform, extends along the long axis of the horizontal rotating platform, and penetrates the circular mounting groove;

[0019] The horizontal rotating platform and the horizontal rotating platform are further provided with a horizontal rotating platform locking hole, which is arranged close to the top surface of the horizontal rotating platform, extends along the long axis of the horizontal rotating platform, and penetrates the circular mounting groove;

[0020] Further, the target body fixing clamp further comprises a clamping plate fixing bolt, which is used for fixing the two target body fixing clamping plates and the target body together.

[0021] Further, it further comprises four telescopic supporting columns and a supporting column bottom plate; the four telescopic supporting columns are vertically and parallelly arranged and respectively located at the bottom corners of the test bed body; the supporting column bottom plate is horizontally arranged below the bottom ends of the telescopic supporting columns.

[0022] Further, it further comprises a forward level bubble and a lateral level bubble; the forward level bubble is installed at the center of the long side wall of the test bed body, and the lateral level bubble is installed at the center of the short side wall of the test bed body.

[0023] The application also provides a non-normal penetration test method for a multilayer structure, which utilizes the non-normal penetration test device for a multilayer structure.

[0024] The non-normal penetration test method for a multilayer structure comprises the following steps.

[0025] According to the design requirements of the multilayer structure to be attacked, a plurality of target bodies are correspondingly installed on a plurality of target body fixing clamps, and the horizontal angle and the pitch angle of the corresponding target bodies are adjusted to the design values through the target body fixing clamps.

[0026] The target body is shot with a projectile, penetration test is carried out, and test data are recorded.

[0027] Compared with the prior art, the application has the following beneficial effects:

[0028] The application provides a non-normal penetration test device for a multilayer structure and a use method thereof.

[0029] Further, the semicylindrical groove is arranged on the test bed body, the pitch rotating platform is designed as a semicylindrical structure, and the pitch rotating platform is rotated in the semicylindrical groove to adjust the pitch angle of the target body.

[0030] Further, the pitch rotating platform is locked and fixed with the test bed body by inserting the pitch rotating platform locking rod into the pitch rotating platform locking hole and one of the pitch rotating platform locking holes, so that the reliable connection between the pitch rotating platform and the test bed body is ensured, and the instability of the pitch rotating platform itself during the penetration process is avoided.

[0031] Further, the semicylindrical groove is arranged on the test bed body, the pitch rotating platform is designed as a semicylindrical structure, and the pitch rotating platform is rotated in the semicylindrical groove to adjust the pitch angle of the target body.

[0032] Further, the pitch rotating platform is locked and fixed with the test bed body by inserting the pitch rotating platform locking rod into the pitch rotating platform locking hole and one of the pitch rotating platform locking holes, so that the reliable connection between the pitch rotating platform and the test bed body is ensured, and the instability of the pitch rotating platform itself during the penetration process is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a whole structure schematic view of the non-normal penetration test device for a multilayer structure.

[0034] Figure 2 It is a front view of the non-normal penetration test device for a multilayer structure.

[0035] Figure 3 It is a left view of the non-normal penetration test device for a multilayer structure.

[0036] Figure 4 This is a right view of the non-positive penetration test apparatus for multi-layer structures described in this invention;

[0037] Figure 5 This is a top view of the non-positive penetration test apparatus for multi-layer structures described in this invention;

[0038] Figure 6 for Figure 1 A magnified view of a portion of point A in the middle;

[0039] Figure 7 for Figure 1 A magnified view of a portion of point B in the middle;

[0040] Figure 8 This is a cross-sectional view of the pitch and rotation platform in this invention;

[0041] Figure 9 This is a cross-sectional view of the horizontal rotating platform in this invention.

[0042] The components include: 1. Test bench body; 2. Target fixing clamp; 3. Target body; 4. Telescopic support column; 5. Support column base plate; 6. Positive level; 7. Lateral level; 21. Pitch rotation platform; 22. Horizontal rotation platform; 23. Target fixing clamp; 24. Pitch turntable stop rod; 25. Horizontal turntable stop rod; 26. Clamp fixing bolt; 211. Pitch turntable stop hole; 221. Horizontal turntable stop hole. Detailed Implementation

[0043] To make the technical problems solved by the present invention, the technical solutions, and the beneficial effects clearer, the following specific embodiments provide a further detailed description of the present invention. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of the invention.

[0044] As attached Figures 1-9 As shown, the present invention provides a non-positive penetration test device for multi-layer structures, including a test platform body 1, several target fixing clamps 2, several targets 3, four retractable support columns 4, support column base plates 5, positive level bubble 6 and lateral level bubble 7.

[0045] The horizontal arrangement of the test bench body 1, a plurality of target body fixing clamps 2 are arranged along the center line of the long axis of the test bench body 1 in sequence; the number of a plurality of target bodies 3 is the same as the number of a plurality of target body fixing clamps 2, and a plurality of target bodies 3 are respectively installed at the top end of a plurality of target body fixing clamps 2; wherein the target body fixing clamp 2 is used to clamp and fix the target body 3 installed thereon, and can adjust the horizontal angle and the pitch angle of the target body 3; preferably, the horizontal angle or the pitch angle of a plurality of target bodies 3 is different; four telescopic support columns 4 are vertically and parallelly arranged, and are respectively located at the bottom corners of the test bench body 1; wherein the telescopic support column 4 is used to adjust the height and the levelness of the test bench body 1; the support column bottom plate 5 is horizontally arranged below the bottom end of the telescopic support column 4, and is used to fixedly connect the telescopic support column 4 and the ground or the workbench surface together; wherein the top end of the telescopic support column 4 is connected with the bottom corner of the test bench body 1 perpendicularly, the bottom end of the telescopic support column 4 is connected with the top surface of the support column bottom plate 5 perpendicularly, and the bottom surface of the support column bottom plate 5 is fixedly adjacent to the ground or the workbench surface.

[0046] The test bench body 1 is a rectangular plate structure, the long axis direction of the test bench body 1 is adapted to the direction of the projectile launching; the forward level bubble 6 is installed at the center of the long side wall of the test bench body 1, and the lateral level bubble 7 is installed at the center of the short side wall of the test bench body 1; wherein the forward level bubble 6 is used to indicate the levelness of the length direction of the test bench body 1, and the lateral level bubble 7 is used to indicate the levelness of the width direction of the test bench body 1.

[0047] The top surface of the test bench body 1 is provided with a plurality of semicylindrical grooves, a plurality of semicylindrical grooves are arranged along the center line of the long axis of the test bench body 1 in sequence; wherein the semicylindrical groove is used for the installation of the pitch rotation platform 21 in the target body fixing clamp 2, and the pitch of adjacent two semicylindrical grooves is adapted to the pitch of adjacent two pitch rotation platforms 21 in the target body fixing clamp 2; specifically, the long axis direction of a plurality of semicylindrical grooves is parallelly arranged with the short axis direction of the test bench body 1, the slot of the semicylindrical groove is through the top surface of the test bench body 1, the groove bottom of the semicylindrical groove extends towards the bottom surface of the test bench body 1, and the groove bottom of the semicylindrical groove is a circular arc groove bottom.

[0048] The target body fixing clamp 2 comprises a pitch rotation platform 21, a horizontal rotation platform 22, two target body fixing clamps 23, a pitch rotation platform stop rod 24, a horizontal rotation platform stop rod 25 and a clamp plate fixing bolt 26.

[0049] The pitch rotation platform 21 is rotatably arranged on the top surface of the test bed body 1, and is used for adjusting the pitch angle of the target body 3; wherein the rotation axis of the pitch rotation platform 21 is arranged in parallel with the short axis center line of the test bed body 1; the horizontal rotation platform 22 is rotatably arranged on the top surface of the pitch rotation platform 21, and is used for adjusting the horizontal angle of the target body 3; wherein the rotation axis of the horizontal rotation platform 22 is perpendicular to the top surface of the pitch rotation platform 21; it should be noted that the horizontal angle of the target body 3 is the included angle between the target body 3 and the top surface of the pitch rotation platform 21 when the top surface of the pitch rotation platform 21 is regarded as a horizontal plane reference surface.

[0050] The pitch rotation platform 21 is a semi-cylindrical structure, and is arranged in one-to-one correspondence in the plurality of semi-cylindrical grooves; wherein the long axis of the pitch rotation platform 21 is parallel to the long axis of the semi-cylindrical groove, the pitch rotation platform 21 is a semi-cylindrical structure formed by a top plane, a bottom circumferential surface and two end surfaces, the bottom circumferential surface of the pitch rotation platform 21 is in contact with the arc-shaped groove bottom of the semi-cylindrical groove, the top surface of the pitch rotation platform 21 is located above the top surface of the test bed body 1, and the two end surfaces of the pitch rotation platform 21 are in contact with the groove walls of the semi-cylindrical groove respectively; wherein the rotation adjustment of the pitch rotation platform 21 is realized by the sliding of the bottom circumferential surface of the pitch rotation platform 21 relative to the arc-shaped groove bottom of the semi-cylindrical groove, and then the pitch angle of the target body 3 is adjusted.

[0051] It should be noted that the radius of the bottom circumferential surface of the pitch rotation platform 21 is adapted to the radius of the arc-shaped groove bottom of the semi-cylindrical groove, so that the pitch rotation platform 21 can slide along the arc-shaped groove bottom of the semi-cylindrical groove, and the pitch angle of the target body 3 is adjusted.

[0052] The circumferential side of the pitch rotation platform 21 is provided with a plurality of pitch rotation platform stop holes 211, a plurality of pitch rotation platform stop holes 211 are arranged close to the bottom circumferential surface side of the pitch rotation platform 21, and are arranged along the long axis direction of the pitch rotation platform 21; wherein one end of the pitch rotation platform stop hole 211 is through the one end surface of the pitch rotation platform 21, and the other end of the pitch rotation platform stop hole 211 is through the other end surface of the pitch rotation platform 21.

[0053] It should be noted that the long side of the test bed body 1 is provided with a plurality of pitch turntable locking holes, which are longitudinally arranged along the short axis direction of the test bed body 1; a plurality of pitch turntable locking holes are arranged one by one corresponding to the semicylindrical groove and are arranged through the groove wall of the semicylindrical groove; wherein the pitch turntable locking hole can be mutually penetrated with any one of the pitch turntable locking hole 211 on the pitch rotation platform 21, and the pitch turntable locking hole and the pitch turntable locking hole 211 have the same hole diameter.

[0054] The pitch turntable locking rod 24 is arranged between the pitch rotation platform 21 and the test bed body 1, and is used for locking and connecting the pitch rotation platform 21 and the test bed body 1; specifically, the diameter of the pitch turntable locking rod 24 is the same as the hole diameter of the pitch turntable locking hole or the pitch turntable locking hole 211, and the pitch turntable locking rod 24 is sequentially inserted and fixed in the pitch turntable locking hole and one of the pitch turntable locking holes 211, so as to lock and fix the pitch rotation platform 21 and the test bed body 1 together.

[0055] The top end plane of the pitch rotation platform 21 is a rectangular plane end, and the center of the top end plane of the pitch rotation platform 21 is provided with a circular mounting groove; wherein the top end opening of the circular mounting groove is arranged, and is arranged through the top end plane of the pitch rotation platform 21, and the bottom end of the circular mounting groove extends to one side of the bottom end circumferential surface of the pitch rotation platform 21; the horizontal rotation platform 22 is a cylindrical structure, and the horizontal rotation platform 22 is coaxially and rotatably installed in the circular mounting groove; wherein the bottom end of the horizontal rotation platform 22 is matched and arranged in the circular mounting groove, and the top end of the horizontal rotation platform 22 extends to the outside of the top surface of the pitch rotation platform 21; the outer diameter of the horizontal rotation platform 22 is matched with the inner diameter of the circular mounting groove, and the horizontal rotation platform 22 is coincided with the center of the circular mounting groove.

[0056] The lower end of the horizontal rotating platform 22 is uniformly provided with a plurality of horizontal rotating platform stop holes 221, and the horizontal rotating platform stop holes 221 are arranged along the diameter of the horizontal rotating platform 22, that is, each horizontal rotating platform stop hole 221 penetrates the center of the horizontal rotating platform 22. The pitch rotating platform 21 is provided with a horizontal rotating platform locking hole, which is arranged near the top end plane of the pitch rotating platform 21 and along the long axis direction of the pitch rotating platform 21, and the horizontal rotating platform locking hole penetrates the circular mounting groove. The horizontal rotating platform locking hole can penetrate any one of the horizontal rotating platform stop holes 221 on the pitch rotating platform 21, and the horizontal rotating platform locking hole and the horizontal rotating stop hole 221 have the same hole diameter.

[0057] The horizontal rotating platform stop rod 25 is arranged between the horizontal rotating platform 22 and the pitch rotating platform 21, and is used for locking and connecting the horizontal rotating platform 22 and the pitch rotating platform 21. Specifically, the diameter of the horizontal rotating platform stop rod 25 is the same as that of the horizontal rotating platform locking hole or the horizontal rotating platform stop hole 221. The horizontal rotating platform stop rod 25 is sequentially inserted and fixed in the horizontal rotating platform locking hole and one of the horizontal rotating platform stop holes 221, so as to lock and fix the horizontal rotating platform 22 and the pitch rotating platform 21 together.

[0058] The two target body fixing clamping plates 23 are arranged in parallel and spaced apart, and are symmetrically arranged on the top surface of the horizontal rotating platform 22. The target body 3 is vertically arranged above the top surface of the horizontal rotating platform 22, and the bottom end of the target body 3 is detachably mounted between the two target body fixing clamping plates 23. The clamping plate fixing bolt 26 is used for fixedly connecting the two target body fixing clamping plates 26 and the target body 3 together. Specifically, the center of the target body fixing clamping plate 23 is provided with a clamping plate bolt hole, and the center of the bottom end of the target body 3 is provided with a target body bolt hole. The clamping plate fixing bolt 26 is sequentially inserted into one of the clamping plate bolt holes of the target body fixing clamping plate, the target body bolt hole and the clamping plate bolt hole of the other target body fixing clamping plate, so as to fixedly connect the two target body fixing clamping plates 26 and the target body 3 together.

[0059] It should be noted that the target body fixing clamping plate 23 only clamps the bottom end of the target body 3, which can be suitable for clamping target bodies of different shapes while ensuring good stopping effect on the target body 3. The target body 3 can be a rectangular target body, a circular target body or other polygonal target body, or a cylindrical target body.

[0060] Test principle and use method:

[0061] The non-normal penetration test device for multi-layer structure according to the application is used, and according to the design requirements of the multi-layer structure to be hit, a plurality of target bodies 3 are correspondingly installed on a plurality of target body fixing clamps 2; the horizontal angle and the pitch angle of the corresponding target body 3 are adjusted to the design value through the target body fixing clamp 2; then, the target body is shot by a projectile, penetration test is carried out, and test data is recorded.

[0062] Specifically, the use method of the non-normal penetration test device for multi-layer structure includes the following steps:

[0063] According to the test requirements of non-normal penetration, the pre-prepared projectile body is installed into the projectile launching device; the test table body 1, the telescopic support column 4 and the support column bottom plate 5 are assembled together to form a non-normal penetration test table; then, the non-normal penetration test table is fixed at the position where the non-normal penetration occurs, and then the support column bottom plate 5 is fixed to the ground or the workbench surface; then, the height of the telescopic support column 4 is adjusted to make the pre-installation position of the target body 3 symmetrical to the launching outlet of the projectile launching device, so as to ensure that the penetration occurs at the center of the target body 3; at the same time, the normal level bubble 6 and the lateral level bubble 7 are adjusted, so that the water bubbles in the normal level bubble 6 and the lateral level bubble 7 are respectively located at the center of the water column, the test table body 1 is installed flat, and the original angle error is eliminated; then, the target body 3 is installed on the target body fixing clamp 2 on the test table body 1; wherein, when the target body 3 is installed, the clamping plate fixing bolt 26 is loosened first, the target body 3 is placed between the two target body fixing plates 23, and then the clamping plate fixing bolt 26 is tightened to firmly fix the target body 3; then, according to the design requirements of the multi-layer structure to be hit, the pitch angle of the target body 3 is adjusted by driving the pitch rotating platform 21 to move in the semicylindrical groove, and the pitch rotating platform 21 and the test table body 1 are locked by the pitch rotating platform stop rod 24, so as to adjust the pitch angle of the target body 3; or the horizontal angle of the target body 3 is adjusted by driving the horizontal rotating platform 22 to rotate in the circular mounting groove, and the pitch rotating platform 21 and the horizontal rotating platform 22 are locked by the horizontal rotating platform stop rod 22, so as to adjust the horizontal angle of the target body 3; finally, the non-normal penetration test is started, and test data is recorded.

[0064] Examples are as follows:

[0065] When the non-normal penetration test is carried out on the projectile body with a diameter of 20 mm, a mass of 1 Kg, a length of 300 mm, a thickness of 2 mm and a double-cone-shaped warhead, the non-normal penetration test table is fixed at the position where the penetration test occurs; wherein the cone angles of the double-cone-shaped warhead are 20° and 7° respectively; then, the telescopic supporting column 4 is adjusted so that the pre-installation position of the target body 3 is aligned with the launching outlet of the projectile launching device, so that the penetration position is located in the middle of the projectile, and the forward and lateral level bubbles are adjusted so that the water bubble in the level bubble is located in the center of the water column, and the test table body 1 is installed flat to eliminate the original angle error; the clamping plate fixing bolt 26 is loosened, the target body 3 is placed between the two target body fixing plates 23, and the clamping plate fixing bolt 26 is tightened to firmly fix the target body 3; then, according to the test requirements, the three target plates are simultaneously horizontally rotated by 0°, 5°, 10°, 15° and 20°, respectively, to carry out penetration experiments to analyze the influence of the non-normal penetration angle on the motion posture of the projectile; or the first target body is horizontally twisted by 10°, the second target body is rotated to an elevation angle of 10°, and the penetration experiment is carried out to observe the running track of the projectile, thereby providing data for continuously optimizing the arrangement structure of the protection engineering.

[0066] In the application, the two-way angle target body installation method is adopted, the horizontal rotation platform and the pitch rotation platform are used to adjust the angles of the target body in the horizontal direction and the vertical direction respectively, the real landing posture of the projectile at the real penetration moment is simulated, the rotating target body method is adopted to generate the projectile landing penetration angle, and the process of the projectile oblique penetration of the target body is equivalent; wherein the telescopic supporting column is used to support the test table body to adjust the height of the test table body, and the structure applicability is greatly improved by cooperating with the double-sided level gauge correction, and the application place is more flexible.

[0067] The non-normal penetration test device disclosed by the application considers the real projectile penetration process, that is, there is an included angle between the projectile and the target body, the target body and the projectile form a preset range of angles by reasonable installation of the target body, the running track of the projectile in the actual process can be refined, the high-fitting trajectory mechanics model is constructed by researching various parameters of the projectile, the flight track of the projectile is further predicted, the striking accuracy and the killing power of the missile are effectively improved, and the trajectory mechanics model is better used to guide the specific projects of weapon engineering and protection engineering.

[0068] In the application, by reasonable design, the target body can form an angle in different planes, the penetration angle of the previous single structure direction is optimized, and the running track of the projectile hitting the target in the actual combat environment is more fitted. Combined with the multi-level and adjustable target body setting, various tests such as bird strike and earth-penetrating projectile can be simulated, and the practicability of the experimental table is greatly improved. The device structure is flexible, the angle and position of each target body can be adjusted independently, the previous monotonous target body installation mode of the test table is optimized, an adjustable height support column is arranged, the applicability of the device is greatly improved, and the equipment is simple to install and has less requirements on the site. In the aspect of fixing the target body, a more reliable bolt connection is adopted, the overall stability of the structure is improved, and better reliability under high-speed impact or even super-speed impact is shown.

[0069] In the application, the method for restoring the penetration angle is realized by changing the angle of the target body, the angle between the target body and the projectile is formed within a certain range, so that the hitting posture of the projectile is simulated; the target body can form an angle in different planes, that is, by presetting the position of the target body, the target body produces an included angle in the left-right and up-down directions, the two-dimensional space angle simulation of the projectile and the target body is realized, and the complex projectile striking process in the actual combat is restored to the maximum extent.

[0070] The above embodiment is only one of the implementation manners of the technical scheme of the application, and the scope of the application claimed by the application is not limited to the embodiment, but also includes any changes, substitutions and other implementation manners easily thought by those skilled in the art within the technical range disclosed by the application.

Claims

1. A non-perpendicular penetration test device for a multi-layer structure, characterized by, Including test bench body (1), several target body fixing clamps (2) and several target bodies (3); The test bench body (1) is horizontally arranged, the several target body fixing clamps (2) are sequentially and spacedly arranged along the long axis center line of the test bench body (1), and the several target bodies (3) are respectively installed at the top end of the target body fixing clamps (2); wherein the target body fixing clamp (2) is used for clamping and fixing the target body (3), and can adjust the horizontal angle and the pitch angle of the target body (3); The target body fixing clamp (2) comprises a pitch rotating platform (21), a horizontal rotating platform (22) and two target body fixing clamps (23). The pitch rotating platform (21) is rotatably arranged on the top surface of the test bench body (1); wherein the rotating axis of the pitch rotating platform (21) is parallel to the short axis center line of the test bench body (1); the horizontal rotating platform (22) is rotatably arranged on the top surface of the pitch rotating platform (21); wherein the rotating axis of the horizontal rotating platform (22) is perpendicular to the top surface of the pitch rotating platform (21); The two target body fixing clamps (23) are parallel and spacedly arranged and symmetrically arranged on the top surface of the horizontal rotating platform (22); the target body (3) is vertically arranged above the top surface of the horizontal rotating platform (22), and the bottom end of the target body (3) is detachably installed between the two target body fixing clamps (23); The top surface of the test bench body (1) is provided with a plurality of semi-cylindrical grooves, and the plurality of semi-cylindrical grooves are sequentially and spacedly arranged along the long axis center line of the test bench body (1); wherein the long axis direction of the semi-cylindrical groove is parallel to the short axis direction of the test bench body (1); The plurality of pitch rotating platforms (21) are all semi-cylindrical structures and are correspondingly arranged in the plurality of semi-cylindrical grooves; wherein the long axis of the pitch rotating platform (21) is parallel to the long axis of the semi-cylindrical groove, and the circumferential surface of the pitch rotating platform (21) is in contact with the arc-shaped groove bottom of the semi-cylindrical groove; The circumferential side of the pitch rotating platform (21) is provided with a plurality of pitch rotating platform stop holes (211); the plurality of pitch rotating platform stop holes (211) are uniformly arranged close to the circumferential side of the pitch rotating platform (21) and longitudinally arranged along the long axis direction of the pitch rotating platform (21); The long side of the test bench body (1) is provided with a plurality of pitch rotating platform locking holes, and the plurality of pitch rotating platform locking holes are correspondingly arranged with the semi-cylindrical grooves and arranged through the groove wall of the semi-cylindrical groove; wherein the pitch rotating platform locking hole is longitudinally arranged along the short axis direction of the test bench body (1); The pitch rotating platform (21) and the test bench body (1) are further provided with a pitch rotating platform stop rod (24), the pitch rotating platform stop rod (24) is sequentially inserted and fixed in the pitch rotating platform locking hole and one of the pitch rotating platform stop holes (211), so as to lock and fix the pitch rotating platform (21) and the test bench body (1) together; The top surface of the pitching rotation platform (21) is a rectangular plane end, and a circular mounting groove is arranged at the center of the top surface of the pitching rotation platform (21); the horizontal rotation platform (22) is a cylindrical structure, and is coaxially and rotatably arranged in the circular mounting groove; wherein the bottom end of the horizontal rotation platform (22) is arranged in the circular mounting groove, and the top end of the horizontal rotation platform (22) extends to the outside of the top surface of the pitching rotation platform (21); A plurality of horizontal rotation platform stop holes (221) are uniformly arranged on the lower end circumference of the horizontal rotation platform (22), and the plurality of horizontal rotation platform stop holes (221) are arranged along the diameter of the horizontal rotation platform (22); The horizontal rotation platform (21) is provided with a horizontal rotation platform locking hole, which is arranged close to one side of the top surface of the pitching rotation platform (21) and along the long axis direction of the pitching rotation platform (21), and the horizontal rotation platform locking hole penetrates the circular mounting groove; The horizontal rotation platform (22) and the pitching rotation platform (21) are further provided with a horizontal rotation platform stop rod (25), which is sequentially inserted and fixed in the horizontal rotation platform locking hole and one of the horizontal rotation platform stop holes (221), so as to lock and fix the horizontal rotation platform (22) and the pitching rotation platform (21) together.

2. A non-perfect penetration testing device for a multi-layer structure according to claim 1, characterized in that, The target body fixing clamp (2) further comprises a clamping plate fixing bolt (26), which is used for fixedly connecting the two target body fixing clamping plates (23) and the target body (3) together.

3. A non-perfect penetration testing device for multi-layered structures according to claim 1, wherein, It also includes four telescopic support columns (4) and a support column bottom plate (5); the four telescopic support columns (4) are vertically and parallelly arranged and respectively located at the bottom corners of the test bench body (1); the support column bottom plate (5) is horizontally arranged below the bottom ends of the telescopic support columns (4).

4. A non-perfect penetration testing device for multi-layered structures according to claim 1, wherein, It also includes a forward level bubble (6) and a lateral level bubble (7); the forward level bubble (6) is installed at the center of the long side wall of the test bench body (1), and the lateral level bubble (7) is installed at the center of the short side wall of the test bench body (1).

5. A method for using the non-normal penetration test device for multi-layer structure according to any one of claims 1-4, comprising: According to the design requirements of the multi-layer structure to be attacked, a plurality of target bodies (3) are correspondingly installed on a plurality of target body fixing clamps (2); the horizontal angle and the pitch angle of the corresponding target body (3) are adjusted to the design value through the target body fixing clamp (2); then, the target body is fired with a projectile, the penetration test is carried out, and the test data is recorded.

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