A parachute-blocking type of elastic body nondestructive recovery device and method
By using a parachute-type projectile recovery device to connect the deceleration parachute and the recovery body with a coupling component, the problems of secondary overload and complexity in artillery projectile recovery are solved, achieving lossless recovery and reliable acquisition of projectile parameters. This device is suitable for projectiles fired by artillery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- NORTHWESTERN POLYTECHNICAL UNIV
- Filing Date
- 2023-05-27
- Publication Date
- 2026-07-24
AI Technical Summary
Existing methods for recovering artillery projectiles suffer from secondary overload damage, complex and unreliable recovery systems, and the umbrella-type recovery technology cannot be uniformly applied to artillery projectiles, resulting in damage to recovered materials or complex designs and high costs.
The projectile is recovered using a parachute-type non-destructive recovery device. A coupling component between the recovery body and the deceleration parachute connects the parachute lines to the recovery body, ensuring timely deployment after the projectile disintegrates. This eliminates the need for additional parachute deployment devices, achieving non-destructive recovery and avoiding parachute line entanglement and attitude instability.
It achieves reliable acquisition of parameters of the projectile in the high-impact environment inside the gun barrel. It has a simple structure, is easy to assemble, occupies little space, and solves the problems of parachute entanglement and attitude instability, ensuring the integrity and reliability of the recovered body.
Smart Images
Figure CN117213319B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of artillery firing technology, specifically relating to a parachute-type projectile non-destructive recovery device and method. Background Technology
[0002] When conducting high-impact environment tests using artillery, an onboard data acquisition and storage testing system is typically used to test the projectile's velocity, acceleration, and other high-impact parameters. To acquire and analyze these stored parameters, the launched projectile needs to be recovered. Traditional recovery methods include hard-landing recovery and fluid-damped recovery. Hard-landing recovery can cause secondary overload damage to the onboard data acquisition and storage testing system, while fluid-damped recovery requires a large and cumbersome recovery system due to the projectile's high velocity, making it complex to operate and unreliable.
[0003] Currently, when drones airdrop items, the items are slowed down by a drogue and then land stably. The drogue deployment technologies used include pyrotechnic drogue deployment and mechanical drogue deployment. Among them, the explosive bolts used for pyrotechnic drogue deployment are not easy to store and have a complex structure, making them unsuitable for use on projectiles fired by artillery. Mechanical drogue deployment unlocks the device by using a servo motor to drive a steel cable to retract a pin, which is also complex and unsuitable for use on projectiles fired by artillery.
[0004] Existing research on the parachute system shows that both the parachute and the recovered object are rigid bodies. Improper connection between the two can lead to damage to the recovered object due to instability in the recovered object's posture or entanglement of the parachute ropes. Therefore, it is necessary to model and calculate the designed structure before use to obtain a connection relationship that meets the requirements. The initial design process of this method is complicated, requiring separate design for each type of projectile, which makes it impossible to achieve a unified standard, reduces manufacturing efficiency, increases manufacturing costs, and is not easy to use on projectiles fired by artillery.
[0005] Therefore, given the limitations of existing umbrella-type recovery technology in artillery firing, this invention proposes an umbrella-type projectile recovery device with no damage. Summary of the Invention
[0006] The technical problem to be solved:
[0007] To overcome the shortcomings of existing technologies, this invention provides a parachute-type projectile recovery device and method for use with artillery projectiles. Through a coupling component between the recovery body and the deceleration parachute, no additional parachute deployment device is needed. This ensures timely deployment and lossless recovery of the recovery body after projectile disintegration, guaranteeing reliable acquisition of parameters related to the high-impact environment within the artillery barrel. This invention solves the problems of attitude instability and parachute rope entanglement caused by the rigidity of both the deceleration parachute and the recovery body. Furthermore, it eliminates the need for separate connecting and opening mechanisms, applying the parachute system to the confined space inside the projectile to ensure lossless recovery without secondary overload impact damage.
[0008] The technical solution of the present invention is: a parachute-type projectile non-destructive recovery device, comprising a projectile, and a recovery body and a deceleration parachute disposed therein; the projectile is a non-fixed, split-type projectile casing, which is in a clamped state inside the gun barrel and splits in time after flying out of the gun barrel, thereby eliminating the constraint on the recovery body and the deceleration parachute.
[0009] The recovery body and the deceleration parachute are connected by a coupling assembly. The coupling assembly connects the end of the deceleration parachute's lines to the top of the recovery body and lays the deceleration parachute's lines on the recovery body along a set trajectory, serving as a buffer connection between the recovery body and the deceleration parachute.
[0010] A further technical solution of the present invention is: the coupling assembly includes a ring head screw, the top end of which is a ring for tightening and fixing the end of the paracord, and the bottom end is a screw that is threadedly connected to the center of the top surface of the recovery body.
[0011] A further technical solution of the present invention is: the coupling component includes a screw cap, and a semi-circular protrusion is provided at the center of the outer end face of the screw cap for tightening and fixing the end of the paracord; the internal thread of the screw cap is fitted with the thread on the outer peripheral surface of the top of the recovery body.
[0012] A further technical solution of the present invention is: the coupling component includes a parachute rope layout track disposed on the outer surface of the recovery body, and each parachute rope is coupled to the corresponding track on the outer surface of the recovery body by adhesive bonding, which is used for buffering when the deceleration parachute is deployed.
[0013] A further technical solution of the present invention is: multiple parachute rope layout tracks are evenly distributed along the circumference of the outer surface of the recyclable body, and the number and position of the parachute ropes correspond one-to-one with the number of parachute ropes; the parachute rope layout track is a serpentine track with reciprocating bends, the tail of the track connects to the end of the parachute rope, and the head of the track connects to the upper end of the parachute rope, so as to avoid the parachute ropes from getting tangled when the deceleration parachute is deployed.
[0014] A further technical solution of the present invention is that the deceleration parachute adopts a cross-shaped structure, that is, the canopy is cross-shaped.
[0015] A further technical solution of the present invention is: the projectile body is a three-lobed tile structure, that is, a cylindrical projectile shell made up of three arc plates, and its bottom end is encapsulated with a projectile base; the projectile base is connected to the projectile body by a trapezoidal buckle.
[0016] A further technical solution of the present invention is: the projectile base is a stepped cylindrical bottom cover, the small-diameter end of which is inserted into the projectile body, and the large-diameter end is located on the outside of the projectile body, and an annular nylon projectile belt is fitted on it; the nylon projectile belt is located between the outer end face of the projectile body and the stepped surface of the projectile base, and is used for buffer connection between the two, and to prevent the projectile body from separating before it is completely separated from the gun barrel.
[0017] A further technical solution of the present invention is: a buffer airbag is provided at the bottom of the recovery body for cushioning when the recovery body lands.
[0018] A further technical solution of the present invention is: a heat insulation layer is provided circumferentially on the inner surface of the projectile relative to the deceleration parachute to prevent the high temperature of the artillery firing from damaging the deceleration parachute.
[0019] A recovery method for a parachute-type projectile non-destructive recovery device includes the following specific steps:
[0020] Step 1: Ignite the cannon. Under the action of the gunpowder gases, the umbrella-type projectile non-destructive recovery device accelerates inside the cannon barrel.
[0021] Step 2: When the projectile is launched from inside the gun barrel and flies out of the barrel, the projectile is rapidly separated from the recovery body and the deceleration parachute due to the aerodynamic drag at the front end. The separated projectile then deviates from its trajectory under the action of aerodynamic force and continues to fly sideways and forward. The deceleration parachute is instantly inflated and deployed under the action of aerodynamic force. The tension generated when the parachute canopy is deployed will pull up and straighten the parachute lines coupled to the surface of the recovery body, thus decelerating the recovery body in mid-air.
[0022] Step 3: Under the action of the deceleration parachute, after the recovered body descends to a certain height, the cushioning airbag inflates. When it lands on the ground, the recovered body is cushioned by the cushioning airbag and lands without damage.
[0023] Step 4: Locate the recoverable body by observing the landing point, remove the coupling component from the recoverable body, and separate the deceleration parachute from the recoverable body to complete the recovery of the recoverable body;
[0024] Step 5: Read the data from the onboard acquisition and storage test system of the recovered object and complete the analysis of the product overload condition.
[0025] Beneficial effects
[0026] The beneficial effects of the present invention are as follows: The present invention provides a parachute-damped projectile recovery device, which realizes the lossless recovery of the projectile after firing through parachute damping. It has a simple structure, is easy to assemble and disassemble, can be used and installed immediately, occupies little space, and can be used for artillery projectile strong impact environment test under various conditions.
[0027] Due to the limitations of the small size of the artillery projectile and the limited internal space, this invention ensures the attitude stability of the recovered body through a coupling component without adding any parachute opening mechanism or buffer connection mechanism, solves the problem of parachute rope entanglement, and ensures reliable acquisition of parameters of the projectile in the strong impact environment inside the artillery barrel.
[0028] Preferably, the coupling component of the present invention adopts two connection methods: ring head screws and screw caps, to achieve a detachable connection between the deceleration parachute and the recovery body, which can ensure the stability of the flight attitude of the recovery body; the parachute lines are coupled to the surface of the recovery body on a set track by adhesive bonding. Under the action of the parachute canopy tension, the parachute lines gradually overcome the adhesive force from the top and gradually separate from the recovery body, which plays a buffering role in the connection between the two rigid bodies and ensures that the parachute lines will not entangle and affect the attitude of the recovery body during release.
[0029] Preferably, the deceleration parachute of the present invention adopts a cross-shaped parachute structure, which can reduce the volume of the parachute canopy while ensuring drag reduction, making it suitable for confined projectile spaces.
[0030] Preferably, the bottom of the recovery body of the present invention is provided with a buffer airbag. When the recovery body falls to a certain height, the external air pressure is greater than the internal air pressure of the buffer airbag, and the airbag can be inflated, thus providing double protection for the recovery body without damage.
[0031] Preferably, an annular nylon band is provided between the outer end face of the projectile and the stepped surface of the projectile base, thereby reducing the impact force of the projectile base on the projectile body.
[0032] Preferably, since a large amount of high-temperature gas is generated during the ignition and firing of the artillery, this temperature can damage the drag reduction parachute, and in severe cases, it may cause the drag reduction parachute to melt locally and fail to open normally. Therefore, a heat insulation layer is provided on the inner surface of the projectile along the circumferential direction relative to the drag reduction parachute, so as to avoid damage to the drag reduction parachute caused by the high temperature of the artillery firing and ensure the integrity of the drag reduction parachute before it opens. Attached Figure Description
[0033] Figure 1 Schematic diagram of a parachute-type projectile non-destructive recovery device;
[0034] Figure 2 Schematic diagram of a deceleration chute;
[0035] Figure 3 Schematic diagram of umbrella canopy structure;
[0036] Figure 4 Deceleration state diagram of the parachute-type projectile non-destructive recovery device;
[0037] Explanation of reference numerals in the attached diagram: 1-projectile body, 2-recovery body, 3-deceleration parachute, 4-nylon projectile belt, 5-projectile base, 6-buffered airbag. Detailed Implementation
[0038] The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.
[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0040] Traditional recovery methods and parachute technology cannot achieve non-destructive recovery of artillery projectiles, making it impossible to accurately acquire data from the projectile-borne acquisition, storage, and testing system. Therefore, this invention designs a parachute-type non-destructive projectile recovery device, which is described below with reference to the accompanying drawings.
[0041] Example 1:
[0042] Reference Figure 1 , 2 As shown, this embodiment of a parachute-type projectile non-destructive recovery device includes a projectile 1, a recovery body 2, a deceleration parachute 3, a nylon projectile belt 4, and a projectile base 5; wherein, the recovery part includes the recovery body 2, the parachute canopy 3.1, and the parachute ropes 3.2.
[0043] The projectile body 1 has a three-lobed structure, that is, a cylindrical shell composed of three arc-shaped plates. Its bottom end is sealed with a base 5, which is connected to the projectile body by a trapezoidal buckle. The base 5 is a stepped cylindrical bottom cover, with its small-diameter end inserted into the projectile body and its large-diameter end located on the outside of the projectile body. A ring-shaped nylon belt 4 is fitted on it. The nylon belt 4 is located between the outer end face of the projectile body 1 and the stepped surface of the base 5, and is used for buffer connection between the two. It can be pre-positioned by adhesive to prevent the projectile body from separating before it is completely detached from the gun barrel.
[0044] The recovery body 2 and the deceleration parachute are detachably connected by a ring head screw 3.3. The top of the ring head screw 3.3 is a ring for tightening and fixing the ends of the parachute lines, and the bottom is a screw threaded to the center of the top surface of the recovery body. The outer surface of the recovery body 2 has parachute line laying tracks. Each parachute line 3.2 is adhesively attached to the corresponding track on the outer surface of the recovery body 2 for cushioning during parachute deployment. Multiple parachute line laying tracks are evenly distributed circumferentially on the outer surface of the recovery body 2, corresponding one-to-one with the number and position of the parachute lines. The parachute line laying tracks are serpentine tracks with reciprocating bends, the tail of the track connecting to the end of the parachute line, and the head of the track connecting to the upper end of the parachute line, to prevent the parachute lines from tangling during deployment.
[0045] Reference Figure 3 As shown, the deceleration parachute 3.1 has a cross-shaped structure, which reduces the volume of the parachute while ensuring drag reduction. A heat-insulating layer is provided circumferentially on the inner surface of the projectile 1 relative to the deceleration parachute 3 to prevent damage to the deceleration parachute 3 from the high temperatures of artillery firing.
[0046] Example 2:
[0047] Reference Figure 1 , 2 As shown, this embodiment of a parachute-type projectile non-destructive recovery device includes a projectile 1, a recovery body 2, a deceleration parachute 3, a nylon projectile belt 4, and a projectile base 5; wherein, the recovery part includes the recovery body 2, the parachute canopy 3.1, and the parachute ropes 3.2.
[0048] The projectile body 1 has a three-lobed structure, that is, a cylindrical shell composed of three arc-shaped plates. Its bottom end is sealed with a base 5, which is connected to the projectile body by a trapezoidal buckle. The base 5 is a stepped cylindrical bottom cover, with its small-diameter end inserted into the projectile body and its large-diameter end located on the outside of the projectile body. A ring-shaped nylon belt 4 is fitted on it. The nylon belt 4 is located between the outer end face of the projectile body 1 and the stepped surface of the base 5, and is used for buffer connection between the two. It can be pre-positioned by adhesive to prevent the projectile body from separating before it is completely detached from the gun barrel.
[0049] The recovery body 2 and the deceleration parachute are detachably connected via a screw cap. A semi-circular protrusion is located at the center of the outer end face of the screw cap for tightening and securing the ends of the parachute ropes. The internal thread of the screw cap engages with the thread on the outer circumferential surface of the top of the recovery body. Parachute rope laying tracks are provided on the outer surface of the recovery body 2 or the outer end face of the screw cap. Each parachute rope 3.2 is adhesively attached to the corresponding track on the outer surface of the recovery body 2 and / or the outer end face of the screw cap, serving as a buffer during parachute deployment. Multiple parachute rope laying tracks are evenly distributed circumferentially on the outer surface of the recovery body 2 and / or the outer end face of the screw cap, corresponding one-to-one with the number and position of the parachute ropes. The parachute rope laying tracks are serpentine tracks with reciprocating bends, the tail of the track connecting to the end of the parachute rope, and the head of the track connecting to the upper end of the parachute rope, to prevent the parachute ropes from tangling during deployment.
[0050] Reference Figure 3 As shown, the parachute canopy 3.1 has a cross-shaped structure, which reduces the volume of the canopy while ensuring drag reduction. A heat-insulating layer is provided circumferentially on the inner surface of the projectile body 1, opposite to the deceleration parachute 3, to prevent damage to the deceleration parachute 3 from the high temperatures of artillery firing.
[0051] Example 3:
[0052] Reference Figure 1 , 2 As shown, this embodiment of a parachute-type projectile non-destructive recovery device includes a projectile 1, a recovery body 2, a deceleration parachute 3, a nylon projectile belt 4, a projectile base 5, and a buffer airbag 6; wherein, the recovery part includes the recovery body 2, the parachute canopy 3.1, and the parachute ropes 3.2.
[0053] The projectile body 1 has a three-lobed structure, that is, a cylindrical shell composed of three arc-shaped plates. Its bottom end is sealed with a base 5, which is connected to the projectile body by a trapezoidal buckle. The base 5 is a stepped cylindrical bottom cover, with its small-diameter end inserted into the projectile body and its large-diameter end located on the outside of the projectile body. A ring-shaped nylon belt 4 is fitted on it. The nylon belt 4 is located between the outer end face of the projectile body 1 and the stepped surface of the base 5, and is used for buffer connection between the two. It can be pre-positioned by adhesive to prevent the projectile body from separating before it is completely detached from the gun barrel.
[0054] The recovery body 2 and the deceleration parachute are detachably connected by a ring head screw 3.3. The top of the ring head screw 3.3 is a ring for tightening and fixing the ends of the parachute lines, and the bottom is a screw threaded to the center of the top surface of the recovery body. The outer surface of the recovery body 2 has parachute line laying tracks. Each parachute line 3.2 is adhesively attached to the corresponding track on the outer surface of the recovery body 2 for cushioning during parachute deployment. Multiple parachute line laying tracks are evenly distributed circumferentially on the outer surface of the recovery body 2, corresponding one-to-one with the number and position of the parachute lines. The parachute line laying tracks are serpentine tracks with reciprocating bends, the tail of the track connecting to the end of the parachute line, and the head of the track connecting to the upper end of the parachute line, to prevent the parachute lines from tangling during deployment.
[0055] The bottom of the recovery body 2 is equipped with a buffer airbag. When the buffer airbag is inside the projectile, it is in a non-gas-contracted state. When the recovery body falls to a certain height, the external air pressure is greater than the internal air pressure of the buffer airbag, and air is injected into the buffer airbag through the vent, thereby achieving double protection for the recovery body.
[0056] Reference Figure 3 As shown, the parachute canopy 3.1 has a cross-shaped structure, which reduces the volume of the canopy while ensuring drag reduction. A heat-insulating layer is provided circumferentially on the inner surface of the projectile body 1, opposite to the deceleration parachute 3, to prevent damage to the deceleration parachute 3 from the high temperatures of artillery firing.
[0057] This embodiment describes a recovery method for a parachute-type projectile non-destructive recovery device, the specific steps of which are as follows:
[0058] Step 1: Ignite the cannon. Under the action of the gunpowder gases, the umbrella-type projectile non-destructive recovery device accelerates inside the cannon barrel.
[0059] Step 2: When the projectile is launched from inside the gun barrel and flies out of the barrel, the projectile is rapidly separated from the recovery body and the deceleration parachute due to the aerodynamic drag at the front end. The separated projectile then deviates from its trajectory under the action of aerodynamic force and continues to fly sideways and forward. The deceleration parachute is instantly inflated and deployed under the action of aerodynamic force. The tension generated when the parachute canopy is deployed will pull up and straighten the parachute lines coupled to the surface of the recovery body, thus decelerating the recovery body in mid-air.
[0060] Step 3: Under the action of the deceleration parachute, after the recovered body descends to a certain height, the cushioning airbag inflates. When it lands on the ground, the recovered body is cushioned by the cushioning airbag and lands without damage.
[0061] Step 4: Locate the recoverable body by observing the landing point, remove the coupling component from the recoverable body, and separate the deceleration parachute from the recoverable body to complete the recovery of the recoverable body;
[0062] Step 5: Read the data from the onboard acquisition and storage test system of the recovered object and complete the analysis of the product overload condition.
[0063] Specifically, the working process of the parachute-type projectile non-destructive recovery device is divided into two stages: in-bore acceleration and out-of-bore deceleration.
[0064] (1) In-bore acceleration stage
[0065] like Figure 1 As shown, the projectile 1 of the umbrella-type projectile non-destructive recovery device is in a clamped state and completes accelerated motion in the barrel under the action of gunpowder gas.
[0066] (2) External deceleration stage
[0067] like Figure 4 As shown, when the projectile recovery device exits the gun barrel, the projectile 1 rapidly separates from the recovery body 2 and the deceleration parachute 3 due to aerodynamic drag at the front end. After the three-lobed structure of the projectile 1 opens, it deviates from its trajectory under aerodynamic force and continues to disperse sideways and forward. The deceleration parachute 3 inflates and deploys under aerodynamic force. After the recovery body 2 and the deceleration parachute 3 descend to a certain height, the cushioning airbag 6 inflates. Upon landing, the airbag provides a landing cushion. The deceleration parachute 3, carrying the recovery body 2, decelerates during flight and lands without damage.
[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.
Claims
1. A parachute-type projectile non-destructive recovery device, characterized in that: It includes a projectile body, and a recovery body and a deceleration parachute disposed therein; the projectile body is a non-fixed, split-type projectile casing, which is held tightly inside the gun barrel and splits immediately after flying out of the gun barrel to eliminate the constraint on the recovery body and deceleration parachute. The recovery body and the deceleration parachute are connected by a coupling assembly. The coupling assembly connects the end of the deceleration parachute's parachute lines to the top of the recovery body and lays the parachute's parachute lines on the recovery body along a set trajectory for a buffer connection between the recovery body and the deceleration parachute. The coupling assembly includes a ring head screw, the top of which is a ring for tightening and fixing the end of the paracord, and the bottom of which is a screw threaded to the center of the top surface of the recovery body; or the coupling assembly includes a screw cap, the center of the outer end face of which is provided with a semi-circular protrusion for tightening and fixing the end of the paracord; the internal thread of the screw cap is fitted with the thread on the outer circumferential surface of the top of the recovery body. The coupling component includes a parachute cord layout track set on the outer surface of the recovery body. Each parachute cord is coupled to the corresponding track on the outer surface of the recovery body by adhesive bonding, which is used for buffering when the deceleration parachute is deployed. The outer surface of the retractable body is evenly distributed with multiple parachute rope layout tracks along the circumference, and each track corresponds to the number and position of the parachute ropes. The parachute rope layout tracks are serpentine tracks with reciprocating bends, with the tail end of the track connecting to the end of the parachute rope and the head end connecting to the upper end of the parachute rope, in order to avoid the parachute ropes from getting tangled when the deceleration parachute is deployed. The projectile body has a three-lobed tile structure, that is, a cylindrical projectile shell made up of three arc plates, with a projectile base encapsulated at the bottom; the projectile base is connected to the projectile body by a trapezoidal buckle; The projectile base is a stepped cylindrical bottom cover, with its small-diameter end inserted into the projectile body and its large-diameter end located on the outside of the projectile body. A ring-shaped nylon projectile belt is fitted on it. The nylon projectile belt is located between the outer end face of the projectile body and the stepped surface of the projectile base, serving as a buffer connection between the two and preventing the projectile body from separating before it has completely detached from the gun barrel.
2. The parachute-type projectile non-destructive recovery device according to claim 1, characterized in that: The deceleration parachute adopts a cross-shaped structure, meaning the canopy is cross-shaped.
3. The umbrella-type projectile non-destructive recovery device according to claim 1, characterized in that: The bottom of the recovery body is equipped with a buffer airbag to cushion the impact when the recovery body lands.
4. The parachute-type projectile non-destructive recovery device according to claim 1, characterized in that: The inner surface of the projectile is provided with a heat insulation layer along the circumference relative to the deceleration parachute to prevent damage to the deceleration parachute from the high temperature of the artillery firing.
5. A method for recovering a parachute-type projectile with non-destructive recovery device as described in any one of claims 1-4, characterized in that... The specific steps are as follows: Step 1: Ignite the cannon. Under the action of the gunpowder gases, the umbrella-type projectile non-destructive recovery device accelerates inside the cannon barrel. Step 2: When the projectile is launched from inside the gun barrel and flies out of the barrel, the projectile is rapidly separated from the recovery body and the deceleration parachute due to the aerodynamic drag at the front end. The separated projectile then deviates from its trajectory under the action of aerodynamic force and continues to fly sideways and forward. The deceleration parachute is instantly inflated and deployed under the action of aerodynamic force. The tension generated when the parachute canopy is deployed will pull up and straighten the parachute lines coupled to the surface of the recovery body, thus decelerating the recovery body in mid-air. Step 3: Under the action of the deceleration parachute, after the recovered body descends to a certain height, the cushioning airbag inflates. When it lands on the ground, the recovered body is cushioned by the cushioning airbag and lands without damage. Step 4: Locate the recoverable body by observing the landing point, remove the coupling component from the recoverable body, and separate the deceleration parachute from the recoverable body to complete the recovery of the recoverable body; Step 5: Read the data from the onboard acquisition and storage test system of the recovered object and complete the analysis of the product overload condition.