Test system for simulating airborne externally-hung vibration impact without hanging rack

Abstract

The invention discloses a rack-free test system for simulating airborne external vibration impact. The rack-free test system comprises a lifting lug hanger, a hanging pin and a hollow cage type tool, the top of an inner cavity of the cage type tool is connected with at least one lifting lug hanger; the lower part of the lifting lug hanger is provided with a profiling lifting lug interface which is transversely distributed in a penetrating manner; the profiling lifting lug connector is used for containing a lifting lug on the top of a suspended product needing to be suspended; and the lifting lug at the top of the hanging product is connected with the lifting lug hanger through the hanging pin. The device is scientific in structural design, can conveniently and reliably perform suspension operation on the suspension product, simulates the suspension state of the suspension product on an aircraft, and further simulates a vibration impact test of the suspension product in the suspension state in cooperation with a vibration table. In addition, the suspended product can be conveniently and reliably pressed and positioned, and the anti-swing performance of the suspended product is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of vibration impact test of airborne suspension equipment, and in particular to a test system for simulating vibration impact of airborne external hanging without a hanging rack. Background Art

[0002] For aircraft (such as fighter jets and helicopters), the suspended products thereon (such as bombs, rockets, etc.) will experience a relatively severe vibration and shock environment during takeoff, flight and launch. In a high-level flight vibration and shock environment, the structural damage of the suspension products is very easy to be exposed, thereby affecting the performance of the suspension products.

[0003] In order to study the adaptability of suspension products in flight vibration and impact environments, a vibration table test system is generally used to verify on the ground whether the suspension products can withstand the expected dynamic vibration and impact stress.

[0004] However, in the initial product development stage, there was no simulated suspension device that could conveniently and reliably perform suspension operations on the suspension product, simulate the suspended product flying on the aircraft, and then cooperate with the vibration table to perform vibration impact tests on the suspension product in the flying state. Summary of the invention

[0005] The purpose of the present invention is to provide a test system for simulating the vibration and impact of an airborne external hanger without a hanger in view of the technical defects in the prior art.

[0006] To this end, the present invention provides a test system for simulating airborne external vibration and impact without a hanger, which includes a hanging ear hanger, a hanging pin and a hollow cage tooling;

[0007] The top of the inner cavity of the cage tooling is connected to at least one hanging ear hanger;

[0008] Wherein, the lower part of the lifting lug hanger is provided with a profiled lifting lug interface which is distributed transversely through the lower part;

[0009] The bottom opening of the contoured lifting lug interface;

[0010] A contoured lug interface to accommodate a lug on the top of the hanging product to be hung;

[0011] The lifting lug on the top of the hanging product is connected to the lifting lug hanger through the hanging pin.

[0012] It can be seen from the technical solution provided by the present invention that, compared with the prior art, the present invention provides a test system for simulating airborne external vibration and impact without a hanger. The system has a scientific structural design and can conveniently and reliably perform suspension operations on suspended products, simulating the hanging and flying state of suspended products on aircraft, and then cooperate with a vibration table to simulate the vibration and impact test of the suspended products in the hanging and flying state, which has great practical significance.

[0013] In addition, the test system for simulating airborne external vibration and impact without a hanger provided by the present invention can also conveniently and reliably press and position the suspension product, thereby enhancing the anti-swing performance of the suspension product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view (i.e., a front view) of a test system for simulating airborne external vibration and impact without a pylon provided by the present invention in a state of being installed for a flight test;

[0015] Figure 2 It is a cross-sectional view of a test system for simulating airborne external vibration and impact without a pylon provided by the present invention in a state of being installed for a pylon flight test;

[0016] Figure 3 It is a structural schematic diagram of a lug hanger in a test system for simulating airborne external vibration and impact without a hanger provided by the present invention;

[0017] Figure 4 It is a structural schematic diagram of a hanging pin in a test system for simulating airborne external vibration impact without a hanging rack provided by the present invention;

[0018] Figure 5 It is a structural schematic diagram of a stopper head provided by the present invention in a test system for simulating vibration and impact of an external hanger without a hanger;

[0019] Figure 6 It is a structural schematic diagram of a stopper rod provided by a stopper in a test system for simulating airborne external vibration impact without a hanger provided by the present invention;

[0020] Figure 7 A top view of a cage-type tooling in a test system for simulating airborne external vibration and impact without a pylon provided by the present invention;

[0021] Figure 8 A front view of a cage-type tooling in a test system for simulating airborne external vibration and impact without a pylon provided by the present invention;

[0022] Fig. 9 A three-dimensional structural diagram of the periphery of the stop zone of a suspension product to be suspended provided by the present invention for a test system for simulating vibration and impact of an airborne external hanger without a hanger;

[0023] In the figure, 1 is a lifting lug hanger, 2 is a contoured lifting lug interface, 3 is a hanging pin hole, and 4 is a hanging hole;

[0024] 5 is a hanging pin, 6 is a stopper, 71 is a first anti-sway stopper hole, and 72 is a second anti-sway stopper hole;

[0025] 8 is a stop rod, 9 is a cage tooling, 90 is a suspension docking through hole, 91 is an upper shell, and 92 is a lower shell;

[0026] 10 is a hanging product, and 101 is a stop zone. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] See also Figures 1 to 9, the present invention provides a test system for simulating airborne external vibration and impact without a hanger, comprising a hanging ear hanger 1, a hanging pin 5 and a hollow cage tooling 9;

[0032] The top of the inner cavity of the cage-type tooling 9 is connected to at least one hanging ear hanger 1;

[0033] Among them, see Figure 3 As shown, the lower part of the eye hanger 1 is provided with a profiled eye interface 2 which is distributed transversely through it;

[0034] The bottom opening of the contoured lifting ear interface 2;

[0035] A contoured hanging ear interface 2, used to accommodate a hanging ear on the top of the hanging product 10 to be hung (the number of hanging ears can be two, and correspondingly, the number of hanging ear hangers 1 is also two);

[0036] The hanging ear at the top of the hanging product 10 is connected to the hanging ear hanger 1 through the hanging pin 5.

[0037] In the present invention, see Figure 1 As shown, the cage-type tooling 9 includes an upper shell 91 and a lower shell 92;

[0038] The upper shell 91 and the lower shell 92 have opposite sides, each having a hanging product accommodating groove;

[0039] The two hanging product accommodating grooves together form an accommodating cavity for placing the hanging product 10; that is, an accommodating cavity for placing the hanging product 10 is formed between the upper shell 91 and the lower shell 92;

[0040] The upper shell 91 and the lower shell 92 are connected to each other, specifically, they are snap-fitted together (may be connected by bolts).

[0041] Furthermore, the front and rear sides of the accommodating cavity are open, that is, completely open.

[0042] Furthermore, the radial cross-sectional shape and size of the accommodating cavity is larger than the radial cross-sectional shape and size of the suspended product 10 .

[0043] In the present invention, the cage tooling 9 is connected to the lug hanger 1 by a plurality of screws;

[0044] In specific implementation, the upper part of the hanging ear hanger 1 is provided with a plurality of hanging holes 4 (which are internal threaded holes) with top openings;

[0045] The upper part of the cage-type tooling 9 has an upper shell 91, and vertically penetrating suspension docking through holes 90 are respectively arranged at positions corresponding to each suspension hole 4;

[0046] After the screw passes through the suspension docking through hole 90 from top to bottom, it is threadedly fixedly connected with the corresponding suspension hole 4.

[0047] In a specific implementation, a plurality of hanging holes 4 are evenly distributed on the upper portion of the hanging ear hanger 1 .

[0048] In the present invention, see Figure 3 As shown, the lower part of the hanging ear hanger 1 is also provided with hanging pin holes 3 which are distributed longitudinally through the lower part;

[0049] The hanging pin hole 3 is connected to the contoured lifting ear interface 2;

[0050] The hanging ear at the top of the hanging product 10 is provided with a hanging ear through hole which runs through longitudinally;

[0051] The hanging pin 5 passes through the hanging pin hole 3 on the hanging ear hanger 1 and the hanging ear through hole on the hanging ear, so as to connect the hanging ear on the top of the hanging product 10 with the hanging ear hanger 1.

[0052] In a specific implementation, the contoured lifting ear interface 2 is located in the longitudinal middle position of the lifting ear hanger 1 .

[0053] In a specific implementation, the central axis of the hanging pin hole 3 and the central axis of the contoured lifting ear interface 2 are perpendicular to each other.

[0054] It should be noted that, for the present invention, Figure 3 As shown, the contoured lifting ear interface 2 is designed according to the external dimensions of the original lifting ear on the suspension product 10, and there is a slight clearance between the contoured lifting ear interface 2 and the original lifting ear on the suspension product 10; the external dimensions of the hanging pin hole 3 are designed according to the cross-section of the real hanger hook originally matched with the suspension product 10, and the contoured design of the lifting ear hanger 1 can truly simulate the installation state of the suspension product 10 hanging on the original real hanger of the aircraft.

[0055] In specific implementation, the hanging ear hanger 1 is made of high-strength 30CrMnSi (a grade of alloy structural steel) material to meet the demand that the hanging product bears greater dynamic stress at the hanging point in the hanging state.

[0056] It should be noted that if Figure 4 As shown, the outer dimensions of the hanging pin 5 are designed according to the hook cross-section of the actual pylon of the aircraft, and the hanging pin 5 is tightly matched with the hanging pin hole 3 .

[0057] In specific implementation, the hanging pin 5 is made of high-strength 30CrMnSi (a grade of alloy structural steel) material to meet the demand that the hanging point of the hanging product bears greater dynamic stress when in the hanging state.

[0058] In the present invention, refer to Figure 5 , Figure 6As shown, the test system for simulating airborne external vibration and impact without a pylon provided by the present invention also includes a stopper;

[0059] A stopper, comprising a stopper head 6 and a stopper rod 8;

[0060] The stopper head 6 is in contact with the top surface of the hanging product 10;

[0061] A first anti-sway stop hole 71 is vertically distributed and not penetrated at the center of the stop head 6;

[0062] The left and right ends of the stopper head 6 are respectively provided with a second anti-sway stopper hole 72 which is symmetrically distributed and does not penetrate through;

[0063] A stop rod 8 is connected to each of the first anti-sway stop hole 71 and the two second anti-sway stop holes 72;

[0064] The bottom surface of the stopper head 6 is in close contact with the top surface of the hanging product 10 .

[0065] It should be noted that the stop head presses the stop area at the top of the hanging product 10 to achieve the effect of preventing swinging.

[0066] In a specific implementation, the two second anti-sway stop holes 72 are obliquely distributed on the stop head 6, and the angle between the central axes of the two second anti-sway stop holes 72 is an acute angle, for example, 45°.

[0067] In a specific implementation, the two second anti-sway stop holes 72 are symmetrically distributed on the left and right.

[0068] In a specific implementation, the first anti-sway stop hole 71 and the two second anti-sway stop holes 72 are all internal threaded holes.

[0069] In specific implementation, the upper shell 91 of the cage-type tooling 9 is provided with second anti-sway stop docking through holes distributed through the upper shell 91 at positions corresponding to each second anti-sway stop hole 72;

[0070] After passing through the second anti-sway stop docking through hole, the stop rod 8 is threadedly fixedly connected to the second anti-sway stop hole 72 corresponding to the position.

[0071] In specific implementation, the upper shell 91 of the cage-type tooling 9 is provided with a first anti-sway stop docking through hole distributed throughout at a position corresponding to the first anti-sway stop hole 71;

[0072] After passing through the first anti-sway stop docking through hole, the stop rod 8 is threadedly fixedly connected to the first anti-sway stop hole 71 corresponding to the position.

[0073] In a specific implementation, the bottom of the stopper head 6 is an arc-shaped pressing surface;

[0074] The shape and size of the pressing surface correspond to and match the shape and size of the stop area 101 at the top of the hanging product 10;

[0075] The pressing surface is symmetrically tangent to the stopper area 101 at the top of the hanging product 10 and is pressed.

[0076] In specific implementation, the test system for simulating airborne external vibration and impact without a hanger provided by the present invention includes two stoppers and two hanging ear hangers 1;

[0077] Two hanging ear hangers 1, connected to the two hanging ears at the top of the hanging product 10;

[0078] The two stopper heads 6 of the two stoppers are respectively located on the opposite sides of the two lifting eye hangers 1 .

[0079] Furthermore, the two stoppers have two stop heads 6, which are in contact with the opposite sides of the two hanging ear hangers 1 respectively;

[0080] The two stop heads 6 are respectively provided with three anti-sway stop holes 7, which cooperate with three stop rods 8 to form a front and rear six-point anti-sway stop.

[0081] It should be noted that the two hanging ears on the top of the hanging product 10 are symmetrically distributed front to back, have the same shape and size, and their center points are located on the same longitudinal straight line.

[0082] It should be noted that, for each stopper provided by the present invention, the stopper includes two parts, a stop head 6 and a stop rod 8. The stop head 6 is provided with three anti-sway stop holes for cooperating with the three stop rods 8, wherein one stop rod 8 is located directly above the stop head 6, and can simulate the anti-sway stopper of a real hanger on the aircraft, and is used to press down the suspension product 10. The other two stop rods 8 are located on both sides of the stop head 6, and are used to prevent the stop head 6 from swinging, and at the same time assist in pressing down the suspension product 10. The inclination angles of the two stop rods 8 on both sides can refer to the original real hanger on the aircraft.

[0083] It should be noted that a general suspension product 10 has two front and rear suspension points (ie, two hanging ears), which are conducive to forming a front and rear six-point anti-sway stop effect through two stoppers.

[0084] In specific implementation, the test system for simulating airborne external vibration and impact without a pylon provided by the present invention also includes a vibration table;

[0085] The vibration output end of the vibration table (eg, the dynamic coil of the vibration table, or the vibration table surface of the vibration table) is connected to the cage-type tooling 9 .

[0086] In a specific implementation, the vibration output end of the vibration table (such as the dynamic coil of the vibration table, or the vibration table surface of the vibration table) is fixedly connected to the bottom of the lower shell 92 of the cage-type tooling 9.

[0087] In terms of specific implementation, the vibration table is a mature vibration testing equipment with existing technology. For example, the 350kN electric vibration table model H3580A produced by Beijing Aerospace Hill Testing Technology Co., Ltd. can be used. Its function is to simulate the vibration impact environment of the product during its use in the air and provide vibrations of different directions and intensities.

[0088] In order to more clearly understand the technical solution of the present invention, the working principle of the present invention is described below.

[0089] like Figure 1 , Figure 2 As shown, during the test, first, the lower half of the cage tooling 9 (i.e., the lower shell 92) is installed on the test table of the vibration table;

[0090] Then, the hanging lug of the hanging product 10 is connected to the hanging lug hanger 1 through the hanging pin 5;

[0091] Then, the hanging ear hanger 1 is connected to the upper part of the cage tooling 9 (i.e., the upper shell 91) through the hanging hole 4;

[0092] Then, the stopper is installed. The stopper is divided into two parts, namely, a stopper head 6 and a stopper rod 8. The stopper head 6 is fitted or tangent to the stopper area 101 reserved at the top of the suspension product 10. One stopper rod 8 is located directly above the stopper head 6, and the other two stopper rods 8 are located on both sides of the stopper head 6. The specific inclination angle is based on the actual pylon. Therefore, the present invention connects the front and rear suspension points (i.e., two hanging ears) of the suspension product 10 and presses the two stopper areas 101 reserved at the top of the suspension product 10, thereby simulating the installation state of the suspension product 10 being suspended on the actual pylon of the aircraft.

[0093] Finally, the upper and lower parts of the cage-type fixture 9 (ie, the upper shell 91 and the lower shell 92 ) are butt-jointed to achieve a suspension state test simulation of the suspension product 10 .

[0094] In addition, the present invention can simulate a vibration impact test of a suspended product in a flying state under the action of a vibration table.

[0095] Compared with the prior art, the test system for simulating airborne external vibration and impact without a pylon provided by the present invention has the following beneficial effects:

[0096] 1. The device of the present invention fully considers the suspension requirements of the suspended products and can replace the real hanger to carry out the vibration impact test of the product in the hanging state;

[0097] 2. The present invention can design the ear hanger and the hanging pin according to the ear form of the hanging product, and truly simulate the hanging installation state of the hanging product on the hanger;

[0098] 3. The present invention can simulate and realize the anti-sway stop requirement when the hanger carries and suspends products through the design of two stoppers;

[0099] 4. By applying the present invention, since no real hanger is used, there is no problem of the real hanger not being finalized or having a long production cycle and high cost.

[0100] In summary, for the present invention, the hanging ear of the hanging product 10 is connected to the hanging ear hanger 1 through the hanging pin 5, and the hanging ear hanger 1 is connected to the cage tooling 9 through the hanging hole 4 to simulate the hanging state of the hanging product. The stopper is divided into two parts: a stop head 6 and a stop rod 8. The stop head 6 is fitted or tangent to the original stop area on the top of the hanging product 10. One stop rod 8 is located directly above the stop head 6, and the other two are located on both sides of the stop head 6. The specific inclination angle refers to the original real pylon on the aircraft.

[0101] The device of the present invention connects the front and rear two suspension points (i.e., two hanging ears) of the suspension product 10, compresses the two original stop areas on the top of the suspension product 10, and simulates the suspension installation state of the suspension product 10 on the real pylon of the aircraft.

[0102] Therefore, for the present invention, the ear hanger 1 is connected to the cage tooling 9 through the hanging hole 4 to simulate the hanging state. The conformal design of the ear hanger 1 can truly simulate the installation state of the hanging product hanging on the real hanger. The ear hanger 1 and the hanging pin 5 are both made of high-strength 30CrMnSi material to meet the demand that the hanging point of the hanging product bears greater dynamic stress in the flying state.

[0103] The present invention is a device that can simulate the vibration impact test of the suspended products such as airborne equipment in the hanging state without the need for a real hanging rack. By applying the present invention, it is possible to replace the original real hanging rack on the aircraft, conveniently and reliably perform the hanging operation on the suspended products, simulate the hanging state of the suspended products on the aircraft, and then cooperate with the vibration table to simulate the vibration impact test of the suspended products in the hanging state. Since the real hanging rack is not used, there is no problem of the real hanging rack being unfinalized or the production cycle being long and the cost being high. It is conducive to fully exposing the defects of the suspension products in the design stage through the test, and providing reliable data for the final finalization of the suspension products.

[0104] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A test system for simulating vibration and impact of airborne external devices without a pylon, characterized in that: It comprises a hanging ear hanger (1), a hanging pin (5) and a hollow cage-type tooling (9); The top of the inner cavity of the cage-type tooling (9) is connected to at least one hanging ear hanger (1); The lower part of the lifting lug hanger (1) is provided with a profiled lifting lug interface (2) which is distributed transversely and penetrates through the lower part; The bottom opening of the contoured lifting ear interface (2); A contoured hanging ear interface (2) for accommodating a hanging ear on the top of a hanging product (10) to be hung; The hanging ear at the top of the hanging product (10) is connected to the hanging ear hanger (1) via a hanging pin (5).

2. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 1, characterized in that: The cage-type tooling (9) comprises an upper shell (91) and a lower shell (92); The upper shell (91) and the lower shell (92) have opposite sides each having a hanging product accommodating groove; The two hanging product accommodating grooves together form an accommodating cavity for accommodating the hanging product (10); that is, an accommodating cavity for accommodating the hanging product (10) is formed between the upper shell (91) and the lower shell (92); The upper shell (91) and the lower shell (92) are connected to each other.

3. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 2, characterized in that: The front and rear sides of the accommodating cavity are open; The radial cross-sectional shape and size of the accommodating cavity is larger than the radial cross-sectional shape and size of the suspended product (10).

4. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 1, characterized in that: The cage-type tooling (9) is connected to the hanging ear hanger (1) via a plurality of screws; The upper part of the hanging ear hanger (1) is provided with a plurality of hanging holes (4) with top openings; The upper part of the cage-type tooling (9) has an upper shell (91), and vertically penetrating suspension docking through holes (90) are respectively arranged at positions corresponding to each suspension hole (4); After the screw passes through the suspension docking through hole (90) from top to bottom, it is threadedly fixedly connected with the suspension hole (4) at the corresponding position.

5. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 1, characterized in that: The lower part of the hanging ear hanger (1) is also provided with hanging pin holes (3) which are distributed longitudinally through the hanger; The hanging pin hole (3) is connected to the contoured hanging ear interface (2); The hanging ear at the top of the hanging product (10) is provided with a hanging ear through hole which runs through the hanging ear in the longitudinal direction; The hanging pin (5) passes through the hanging pin hole (3) on the hanging ear hanger (1) and the hanging ear through hole on the hanging ear.

6. The test system for simulating vibration and shock of an external hanger without a hanger as claimed in claim 5, characterized in that: A contoured lifting lug interface (2) located in the longitudinal middle of the lifting lug hanger (1); The central axis of the hanging pin hole (3) and the central axis of the contoured hanging ear interface (2) are perpendicular to each other.

7. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 1, characterized in that: Also includes a stopper; A stopper, comprising a stopper head (6) and a stopper rod (8); A first anti-sway stop hole (71) which is vertically distributed and does not penetrate is provided at the center of the stop head (6); A second anti-sway stop hole (72) is symmetrically distributed and does not penetrate the stop head (6) at both left and right ends. A stop rod (8) is respectively connected to the first anti-sway stop hole (71) and the two second anti-sway stop holes (72); The bottom surface of the stopper head (6) is in tight contact with the top surface of the hanging product (10).

8. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 7, characterized in that: The two second anti-sway stop holes (72) are obliquely distributed on the stop head (6), and the angle between the central axes of the two second anti-sway stop holes (72) is an acute angle; The two second anti-sway stop holes (72) are symmetrically distributed on the left and right.

9. The test system for simulating airborne external vibration and impact without a pylon as claimed in claim 1, characterized in that: The upper part of the cage-type tooling (9) has an upper shell (91), which is provided with second anti-sway stop docking through holes distributed through the upper shell at positions corresponding to each second anti-sway stop hole (72); After the stop rod (8) passes through the second anti-sway stop docking through hole, it is threadedly fixedly connected to the second anti-sway stop hole (72) at the corresponding position; and / or, The upper part of the cage-type tooling (9) has an upper shell (91), which is provided with a first anti-sway stop docking through hole extending therethrough at a position corresponding to the first anti-sway stop hole (71); After passing through the first anti-sway stop docking through hole, the stop rod (8) is threadedly fixedly connected to the first anti-sway stop hole (71) at the corresponding position; and / or, The bottom of the stopper head (6) is an arc-shaped pressing surface; The shape and size of the pressing surface correspond to and match the shape and size of the stopper area (101) at the top of the hanging product (10); The pressing surface is symmetrically tangent to and pressed against a stopper area (101) at the top of the hanging product (10); and / or, The test system for simulating airborne external vibration and impact without a hanger comprises two stoppers and two hanging ear hangers (1); Two hanging ear hangers (1) connected to two hanging ears at the top of the hanging product (10); The two stoppers have two stop heads (6) which are in contact with opposite sides of the two hanging ear hangers (1) respectively; The two stop heads (6) are respectively provided with three anti-sway stop holes (7) which cooperate with three stop rods (8) to form front and rear six-point anti-sway stops.

10. The test system for simulating airborne external vibration and impact without a pylon as claimed in any one of claims 1 to 9, characterized in that: Also included is a vibration table; The vibration output end of the vibration table is connected to the bottom of the cage-type tooling (9).

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