31 results about "Ballistics" patented technology

The invention provides a liquid-gas phase change ejection inner trajectory modeling method, a liquid-gas phase change ejection simulation method and electronic equipment. A liquid-gas phase change ejection system comprises at least one phase change power unit. The liquid-gas phase change ejection inner trajectory modeling method comprises the step of dividing a liquid-gas phase change ejection inner trajectory into a phase change power unit flow model, a primary chamber energy model and a projectile body motion parameter model. According to the method, the liquid-gas phase change ejection inner ballistic model comprising the multiple phase change power units is constructed, the acting time of the phase change device is prolonged, the preset speed can be achieved when the ejection overload control requirement is high and the overload does not exceed the limit value, and the inner ballistic parameter change process in the carbon dioxide phase change ejection expansion acting process can be accurately calculated.

The invention discloses an energetic propellant based on magnesium-nickel-based metal hydride blending as well as a preparation method and application of the energetic propellant. The preparation method comprises the following steps: step 1, taking metal Mg and Ni elementary substances as raw materials, and preparing magnesium-nickel-based metal alloy powder by adopting a mechanical alloying method; s2, the magnesium-nickel-based metal alloy powder is subjected to hydrotreating, and magnesium-nickel-based metal hydride is obtained; and S3, the magnesium-nickel-based metal hydride is coated with graphene, mechanical ball milling is conducted, the magnesium-nickel-based metal hydride and a monoaromatic propellant are mixed, and the energetic propellant based on magnesium-nickel-based metal hydride mixing is obtained. The characteristic that metal hydride can release hydrogen in a high-temperature environment is utilized, and the release rate of hydrogen energy is regulated and controlled through the size and the proportion, so that the combustion characteristic of propellant powder and the chamber pressure of an inner trajectory during artillery launching are changed, and finally the kinetic energy of a gun muzzle is improved.

The invention discloses an air-water cross-medium shell whole-course trajectory firing table compiling method, and belongs to the technical field of outer ballistic cross-medium trajectory correction theories, cross-medium fluid dynamics and artillery firing table compiling. The method comprises numerical simulation of an air trajectory, a water entry trajectory and a water trajectory and a whole-course trajectory shot table fast interpolation algorithm. Wherein the air trajectory is solved based on a six-degree-of-freedom trajectory model; the water entry trajectory and the underwater trajectory are obtained by solving a fluid control equation by adopting a fluid volume (VOF) multiphase flow model, a turbulence model, a cavitation model and a dynamic grid technology; the full-ballistic shot table fast interpolation algorithm is realized based on a least square method and a linear interpolation algorithm. The method is suitable for the cannonball trajectory air-water cross-medium condition, the rapid and accurate calculation problem of firing elements of an artillery fire control system in the air-water cross-medium environment of the firing table is solved, the continuity of the cross-medium full-trajectory firing table is achieved, the blank of the cross-medium firing table is filled up, and the cross-domain combat ability of an artillery weapon system is effectively improved.

The invention relates to a system and a method for measuring ballistic trajectories in a light-gas gun and an artillery, and the system comprises a first microwave source assembly, a first power amplifier, a first circulator, a horn antenna, a second microwave source assembly, a second power amplifier, a second circulator, a linear polarization antenna and a microwave reflection and transmission plate, the directions of microwaves emitted by the horn antenna and the linearly polarized antenna form an angle of 90 degrees, the microwave reflection and transmission plate is arranged on an angular bisector of the angle formed by the horn antenna and the linearly polarized antenna, and the microwave reflection and transmission plate enables short-wavelength microwaves emitted by the horn antenna to be directly transmitted to a target to be measured. And long-wavelength microwaves emitted by the linear polarization antenna can be reflected to a to-be-measured target according to an angle of 45 degrees. According to the system for measuring the ballistic trajectory in the light-gas gun and the artillery, long-wave microwaves are reflected on the front surface of forward gas, short waves are reflected on the surface of a projectile, and therefore long-distance, continuous and simultaneous measurement of the speed of the forward gas and the speed of the projectile is achieved.

This invention relates to the field of unmanned aerial vehicle (UAV) automatic control technology, specifically to an UAV automatic window-breaking fire extinguishing system and method. The system uses an airborne lidar and image sensor to accurately measure the distance to the building wall and the target position, while simultaneously using a wind speed sensor to collect wind field data in real time. The control system is based on a ballistic model to comprehensively calculate the launch elevation angle, wind speed compensation, and recoil effects, dynamically adjusts the launch parameters of the fire extinguishing projectile, and uses a buffer mechanism to offset the launch impact, ensuring flight stability.

The utility model relates to calibration equipment, an electronic gun calibrator and a sighting telescope for calibrating firearms, the electronic gun calibrator comprises a support, the support is provided with a sighting telescope installation position at the front part and an electronic eyepiece installation position at the rear part, and the tail end of the support is provided with a gun barrel assembly structure; the sighting telescope is mounted at a sighting telescope mounting position on the bracket; the electronic eyepiece is installed at an electronic eyepiece installation position on the support, and the electronic eyepiece can obtain the visual field of the sighting telescope and present the visual field on the image display device; when the support is installed on the gun barrel of the firearm through the gun barrel assembling structure, the aim point of the sighting telescope and the gun barrel are located on the same straight line. According to the electronic rifle calibrator, on the basis of the shooting principle of the rifle, the relation between the front sight and the aperture of the automatic rifle and the accuracy of the sighting telescope are adjusted according to the relation between the trajectory and the sighting base line, and therefore the aim that the sighting point coincides with the shooting impact point is achieved.

The invention relates to a soil-biodegradable injection-mouldable thermoplastic composition, suitable for use in ammunition, especially in wads and other components of cartridges for shooting sports and hunting. The composition comprises one or more biodegradable polyesters, preferably polybutylene adipate terephthalate (PBAT) and / or polybutylene terephthalate with sebacic acid (PBTSeb), with high fluidity, and in a proportion of ≥51%, and may be complemented with plasticised starch. This composition achieves above 90% biodegradation in soil in much less than two years, together with high impact resistance, lower moisture absorption (with the associated advantages of greater dimensional stability, lower production costs and better and safer ballistics), compatibility with existing injection and production processes, and lower production costs owing to its greater fluidity.

The invention relates to an apparatus for providing a ballistic solution. In one embodiment, the present disclosure relates to a device for storing more than one ballistic calculator for providing a ballistic solution. In one embodiment, the device communicates with one or more laser rangefinders.

A ballistic detection system includes a projectile detector; electromagnetic radiation detection equipment; and a ballistics analysis computer configured to obtain image data captured by first and second cameras in accordance with timing specified by the projectile detector, determine points in three-dimensional space, which correspond to image artifacts of a projectile, using intrinsic and extrinsic parameters of the first and second cameras, define a trajectory of the projectile within a target volume using the points in three-dimensional space, and optionally find a point of intersection of the trajectory of the projectile with an object associated with the target volume.

The invention discloses a rainfall enhancement and hail suppression rocket projectile trajectory prediction method and system fused with a three-dimensional meteorological field, and belongs to the technical field of artificial influence weather, and the method comprises the following steps: constructing the three-dimensional meteorological field; carrying out thrust-temperature self-adaptive modeling; carrying out six-degree-of-freedom dynamics modeling; carrying out ballistic numerical integral solving; and outputting and applying a result. According to the invention, continuous interpolation is carried out on meteorological data to construct a three-dimensional meteorological field, an engine thrust-temperature adaptive model is established, a six-degree-of-freedom kinetic equation is constructed according to an out-of-rocket ballistic theory, and a numerical integration method is combined to realize whole-process trajectory simulation of a rocket projectile from launching to landing. Therefore, the precision and reliability of trajectory prediction are effectively improved, and a scientific basis is provided for safety control and effect evaluation of artificial influence weather operation.

A polymeric cartridge subassembly for use in medium caliber weaponry, comprising a metallic base having a rearward surface, an open forward surface, and a coupling element therebetween. A polymeric casing is mated with the base coupling element via a coupling end, and includes a forward end opening, an opposite end, and a middle body portion therebetween. The forward end opening is adapted to receive a projectile, and the coupling end has an outer diameter less than that of the middle body portion to facilitate mating with the base coupling element. The polymeric casing is formed from a graphene-reinforced polymer matrix composite which is light-weight; producing necessary ballistics for medium caliber ammunition without deformation of the polymeric casing after firing.

A protective suit to protect a wearer from ballistics and explosives. The protective suit comprises a base garment, an armor plate, and a plurality of shocks coupled to an interior surface of the base garment opposite to the armor plate.

This disclosure is directed to an improved ballistic concrete mixture which is operable to be cast in many forms such as blocks. The improved ballistic concrete mixture provides an effective barrier for stopping projectiles with a kinetic energy of between about 1.0 kJ (750 foot-pounds) and 20.3 kJ (15,000 foot-pounds) in between about 3 inches and 10 inches such as a fifty-caliber round. The improved ballistic concrete mixture is useful in the erecting of new structures which need ballistics protection or for retrofitting existing structures with ballistics protection.

Provided herein are systems and methods that support preferred outcomes of tactical encounters. More particularly, the invention relates to artificial intelligence and machine learning systems and methods to select preferred ballistics solutions and tactical courses of action.

The invention discloses an ejection inner trajectory adjusting method based on a solid cooling agent, in the method, a cooling device loaded with the solid cooling agent is introduced, and the fuel gas temperature is reduced through the cooling device, so that an ejection inner trajectory system can adapt to the low-overload and high-initial-speed requirements of an inner trajectory under the condition of small initial capacity.

The invention belongs to the technical field of military exercise training, and particularly relates to a decision system for calculating a digital ammunition damage effect, and the system comprises a three-dimensional scene restoration module which is used for setting a digital twinborn environment of an actual confrontation exercise environment, and updating changed battlefield elements in real time, including influence elements generated for confrontation exercise; the first communication module is used for data interaction with each client; collision calculation: after an actual trajectory is obtained according to a trajectory algorithm, a hit result is calculated in combination with the figure position, the obstacle and the shielding condition of the digital twin environment battlefield; and performing damage rating, namely performing damage rating according to the hit part in combination with a damage rating rule configured in the system. According to the method, the digital twin environment restored by the three-dimensional scene is adopted, data such as ballistic trajectory, damage conditions and collision information in the confrontation drill can be calculated, and the authenticity and effectiveness in the confrontation drill are enhanced.

An apparatus, system, computer-readable medium, and / or process to measure, sense, or otherwise obtain weight of a projectile and use that information to generate instructions to adjust aim of the projectile. For example, instructions may indicate a desired weight of a projectile for performance.

The invention discloses a high-precision calculation method and system for an outer trajectory of a projectile, and belongs to the technical field of artillery fire control. The method comprises the following steps: firstly, establishing a double-model structure consisting of a mass point differential equation model and a rotation angular velocity attenuation model so as to comprehensively describe mass center movement and rotation around the center of a projectile; and then, a four-order Runge-Kutta algorithm (RKF45) with adaptive step length is adopted to carry out numerical integration solution on the model, and the optimal balance between the calculation precision and the efficiency is realized by estimating a local truncation error in real time and dynamically adjusting the integration step length. According to the method, the defects that a traditional firing table method is low in precision and poor in adaptability and a fixed step size numerical solution method is insufficient in stability are effectively overcome, firing elements with higher precision and higher stability can be provided for a fire control system, and the hit rate and combat effectiveness of artillery are remarkably improved.

Improvements in a ballistic with a multi-part chamber locking assembly is disclosed to allow the casing ejection and reloading sequence to be temporarily slowed down to capture the optimum amount of ignited gun powders expanding gas, prior to the round exiting the barrel. Large slide component(s) of a firearm are replaced with a multi-part chamber locking assembly. This negates the requirement for a round to move laterally after moving vertically. The round only moves vertically thus mitigating the requirement for any forward motion. The multi-part chamber reduces the weight and materials needed to actuate all components of the ejecting and reloading process, so more energy is available to transfer movement of casing ejecting. The round is fired with a hammer or striker through impingement or a firing pin actuated action on a primer to ignite the propellant.

This invention provides a swing analysis device and program that can accurately determine the movement and trajectory of the club head face using existing ballistics measurement devices, without requiring the installation of a camera to film the swing from above. [Solution] The system includes a feature acquisition unit 21 that acquires multiple feature quantities at the moment when the club head 41a of the golf club 41 collides with the golf ball 42 when the golf club 41 is swung, and an estimation unit 22 that estimates at least one of the temporal change in the angle of the face of the club head 41a and the movement trajectory of the club head 41a based on the multiple feature quantities acquired by the feature acquisition unit 21.

Use of a muzzle velocity detector with a display allows for a rapid calculation of a second shot firing solution based on a first shot analysis. A doppler radar emitter and detector is located in a housing. The housing has a mount that allows it to be coupled to a hand guard on a rifle. This allows for the muzzle velocity to be detected very close to the end of the barrel. Information about the bullet can be preloaded into a ballistics calculator. The ballistics calculator can be integrated with the muzzle velocity detector or coupled wirelessly to it. The impact location of the first shot is identified and that “drift” is used with muzzle velocity and many other factors to quickly provide a compensation to be used with the sight to ensure the second shot is more accurate.

Rapidly deployable, immediately activated Mobile Mission Kits are highly flexible armored protective apparatuses that can be used in countless environments and against various threat types and levels to protect people, infrastructure and equipment while giving end users unit dominance advantages through the ability to establish an extended and hardened perimeter with checkpoint options by interconnecting operative (Mobile Mission Kit) units that interlock, an internal structural mission cage that can accommodate necessary tactical gear, weapons, equipment and supplies for missions or emergency responses, offensive capabilities, and stopping intrusion efforts from adversarial groups or entities. The Mobile Mission Kit does not require assembly or construction to activate the protective barrier upon arrival, and would not require any tools or equipment to active barrier, interconnect units, deactivation, or prepare for extraction

This invention discloses a method for designing the ballistic safety margin of a launch vehicle based on calibration test parameters, including: estimating the maximum safety margin x of the cluster stage. 01 ; in [0, x 01 Within the interval, values ​​are taken at equal intervals to obtain a set of safety margin values ​​for the cluster-binding stage; the reference ballistics corresponding to each safety margin value of the cluster-binding stage are obtained, and target simulation is performed based on the reference ballistics to determine the optimal value of the safety margin value of the cluster-binding stage; the maximum safety margin x of the second stage is estimated. 02 ; in [0, x 02 Within the specified interval, values ​​are taken at equal intervals to obtain a set of secondary safety margin values. Based on the optimal values ​​of the cluster-type launch vehicle safety margin obtained in step S3, the reference trajectory corresponding to each secondary safety margin value is obtained. Target simulation is performed based on the reference trajectory to determine the optimal values ​​of the secondary safety margins, and thus obtain the optimal values ​​of the tertiary safety margins. This invention enables the optimal allocation of safety margins at each stage of a cluster-type launch vehicle, maximizing its carrying capacity.

The present invention provides a liquid-gas phase-change catapult interior ballistics modeling method, simulation method, and electronic equipment. The liquid-gas phase-change catapult system of the present invention includes at least one phase-change power unit. The liquid-gas phase-change catapult interior ballistics modeling method includes dividing the liquid-gas phase-change catapult interior ballistics into a phase-change power unit flow model, an initial volume chamber energy model, and a projectile motion parameter model. The present invention constructs a liquid-gas phase-change catapult interior ballistics model comprising multiple phase-change power units. The phase-change device increases the operating time, which can achieve a predetermined speed without exceeding a limit when catapult overload control requirements are high. The method can also accurately calculate the changes in internal ballistic parameters during the expansion and operating process of a carbon dioxide phase-change catapult.

The invention discloses a two-stage horizontal take-off and landing sub-orbital aircraft appearance aerodynamic trajectory integrated design method. Full trajectory design of the horizontal take-off and landing sub-orbital aircraft in a two-stage rocket power mode is completed in a trajectory splicing mode, height-attack angle and speed-attack angle node control schemes are adopted in the large-attack-angle climbing sections I and II correspondingly, and horizontal accelerated flight of the aircraft in the active section is achieved; considering the characteristic that the aerodynamic design and the trajectory scheme of the sub-orbital aircraft are tightly coupled, the aerodynamic configuration and trajectory integrated optimization design is adopted, and the aerodynamic configuration and trajectory integrated optimization scheme of the aircraft is simplified into the inner layer optimization of the sub-orbital aircraft profile parameters and the outer layer optimization of the full trajectory scheme optimization. The hour-level 10000-kilometer remote top-speed transportation task under the two-stage rocket power mode is achieved, the time of the remote top-speed transportation task is greatly shortened, and a guarantee is provided for the remote top-speed transportation task.

A system includes a shooting system comprising at least one first processor configured to: receive shooting ballistics-related data and shooting result data in real time; and detect real-time surrounding data; and an integrated computer comprising at least one second processor configured to: receive the shooting ballistics-related data and the shooting result data from the shooting system; derive learning result data based on the shooting ballistics-related data and the shooting result data; and transmit the learning result data to the shooting system.

In some aspects, the disclosure is directed to methods and systems for an improved ballistics calculator allowing faster and more efficient estimation of flight characteristics. Using an array of calculation coefficients and starting from initial values for primary ballistics variables, implementations of these methods and systems may iteratively select a set of coefficients; adjust the primary ballistics variables based on a change in time; and reselect a new set of coefficients, providing highly accurate estimations in real-time while reducing processor resources required for more complex calculations or real-time visual or radar tracking systems.

This disclosure is directed to an improved ballistic concrete mixture which is operable to be cast in many forms such as blocks. The improved ballistic concrete mixture provides an effective barrier for stopping projectiles with a kinetic energy of between about 1.0 kJ (750 foot-pounds) and 20.3 kJ (15,000 foot-pounds) in between about 3 inches and 10 inches such as a fifty-caliber round. The improved ballistic concrete mixture is useful in the erecting of new structures which need ballistics protection or for retrofitting existing structures with ballistics protection.

A target acquisition device that can determine a ballistics solution based on parabola characteristics. The parabola characteristics can be modeled in UI coordinates on the y-axis (e.g., pixels, mm, . . . ) and physical coordinates (e.g., feet, yards, meters, . . . ) on the x-axis. Zeroing data can be leveraged that establishes high quality reference points for two or more zeroed distances such that high quality ballistics solutions can be determined for other suitable (e.g., non-zeroed) distances as a function of parabola modeling techniques.

An electronic aiming system includes an electro-mechanical reticle having a plurality of electrically powered holdover indicators configured to be individually selected and energized to a visible state, a rangefinder configured to generate range data, a computing device configured to generate ballistics data; and a processor configured to receive the range data and ballistics data, select, based at least in part on either or both of the range data and ballistics data, one or more of the holdover indicators, and energize the selected holdover indicator or indicators to the visible state