EP4283239A1 - Selbstfahrendes geschützsystem - Google Patents

Selbstfahrendes geschützsystem Download PDF

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Publication number
EP4283239A1
EP4283239A1 EP22275069.7A EP22275069A EP4283239A1 EP 4283239 A1 EP4283239 A1 EP 4283239A1 EP 22275069 A EP22275069 A EP 22275069A EP 4283239 A1 EP4283239 A1 EP 4283239A1
Authority
EP
European Patent Office
Prior art keywords
axis
chassis
wheel
self
gun
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22275069.7A
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English (en)
French (fr)
Inventor
designation of the inventor has not yet been filed The
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BAE Systems PLC
Original Assignee
BAE Systems PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BAE Systems PLC filed Critical BAE Systems PLC
Priority to EP22275069.7A priority Critical patent/EP4283239A1/de
Priority to PCT/GB2023/051272 priority patent/WO2023227861A1/en
Publication of EP4283239A1 publication Critical patent/EP4283239A1/de
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/28—Wheeled-gun mountings; Endless-track gun mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A23/00—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles
    • F41A23/34—Gun mountings, e.g. on vehicles; Disposition of guns on vehicles on wheeled or endless-track vehicles

Definitions

  • the present invention relates to a self propelled gun system.
  • recoil forces are managed by recoil systems and the forces can be reduced by increasing the length of the recoil stroke and/or increasing the recoiling mass as, via conservation of momentum, this reduces the recoil velocity and hence energy.
  • these features all add weight, making it very hard to create a stable light weight system.
  • self-propelled gun systems i.e. those which have a powertrain, but which are lighter than heavy weaponry such as tanks
  • wheels, suspension, drive and braking systems needed for transit in addition to support systems which deal with the very large impulse directional loads experienced during operation of the gun. This adds to extra weight and complexity, making it harder to achieve a desired weight limit.
  • a self-propelled gun system (10) defining a recoil mitigation system (100).
  • the self-propelled gun system (10) may comprise a chassis (200) extending along an x-axis, a first end (202) of the chassis (200) and a second end (204) of the chassis (200) spaced apart from one another along the x-axis; the chassis (200) extending along a y-axis, a first side (206) of the chassis (200) and a second side (208) of the chassis (200) spaced apart from one another along the y-axis; the x-axis being at right angles to the y-axis.
  • the self-propelled gun system (10) may further comprise a gun barrel (300) having a barrel axis (302), the barrel (300) being mounted to the chassis (200) by a pivot mount (304), the barrel (300) being pivotable relative to the x-axis about a pivot axis (310) aligned and/or parallel with the y-axis.
  • the self-propelled gun system (10) may further comprise a chassis suspension system (400) comprising a first wheel arm (402) extending away from the chassis (200) to a first wheel (404), the first wheel (404) being rotatably mounted on the first wheel arm (402), the first wheel (404) configured for engagement with a support surface (500), the first wheel arm (402) and first wheel (404) configured to support the chassis (200) a distance (Dz) apart from the support surface (500) in a z-axis, the z-axis being perpendicular to the x-axis and y-axis.
  • a chassis suspension system (400) comprising a first wheel arm (402) extending away from the chassis (200) to a first wheel (404), the first wheel (404) being rotatably mounted on the first wheel arm (402), the first wheel (404) configured for engagement with a support surface (500), the first wheel arm (402) and first wheel (404) configured to support the chassis (200) a distance (D
  • the recoil mitigation system (100) may beoperable such that a maximum recoil damping distance (Dz_max) of the chassis (200) from the support surface (500) in the z-axis is variable to thereby vary the available damping distance in the z-axis to absorb recoil force (Fr) from the firing of a projectile (340) from the gun barrel (300)
  • the self-propelled gun system (10) may further comprise a first wheel brake control device (600) configured for applying a braking force to the rotatable first wheel (404) in response to movement of the chassis (200) in the x-axis by a recoil force (Fr) from the firing of a projectile (340) from the gun barrel (300).
  • a first wheel brake control device (600) configured for applying a braking force to the rotatable first wheel (404) in response to movement of the chassis (200) in the x-axis by a recoil force (Fr) from the firing of a projectile (340) from the gun barrel (300).
  • the brake control device (600) may be configured for applying the braking force to the rotatable first wheel (404) after the firing of a projectile (340) from the gun barrel (300) and after the rotatable first wheel (404) has started rotating along the support surface (500) in response to the firing of a projectile (340) from the gun barrel (300).
  • the brake control device (600) may be configured to gradually and/or intermittently apply the braking force to the rotatable first wheel (404) after the rotatable first wheel (404) has started rotating.
  • the brake control device (600) may be a regenerative braking device (602), and the regenerative braking device (602) is operably linked with a rechargeable electric storage device (700) and the at least one first wheel (404) for generating an electrical current by decelerating the at least one first wheel (404) and dissipating the recoil of the self-propelled gun system (10).
  • the self-propelled gun system (10) may further comprise a processor (610) in communication with the regenerative braking device (602) and to the rechargeable electric storage device (700) such that in response to a first movement of the chassis (200) along the support surface (500), the processor (610) causes the regenerative braking device (602) to decelerate the first wheel (404).
  • a processor (610) in communication with the regenerative braking device (602) and to the rechargeable electric storage device (700) such that in response to a first movement of the chassis (200) along the support surface (500), the processor (610) causes the regenerative braking device (602) to decelerate the first wheel (404).
  • the gun barrel (300) may be constrained to pivot about the pivot axis (310) in a plane of movement extending through the x-axis and z-axis and/or is constrained to pivot about the pivot axis (310) between -5 degrees to the x-axis and +75 degrees to the x-axis.
  • the gun barrel (300) may be rotatable about the z-axis, limited to be rotatable no more than +/- 5 degrees relative to a direction parallel to the x-axis around the z-axis.
  • the distance (Dy) of the first wheel (404) from the x-axis in a direction along the y-axis may be operable to be increased to thereby increase the stability of the chassis (200) along the x-axis and y-axis to maintain orientation of the chassis (200) during and after the firing of a projectile (340) from the gun barrel (300).
  • the maximum recoil damping distance (Dz_max) of the chassis (200) from the support surface (500) in the z-axis for a gun firing condition may be controlled to be set by pivoting the first wheel arm (402) relative to the z-axis, and a resilient suspension unit (420) is provided to bias the first wheel arm (402) to move the chassis (200) back to being spaced part from the support surface (500) by the set maximum recoil damping distance (Dz_max) after displacement of the chassis (200) away from the set maximum recoil damping distance (Dz_max).
  • the chassis first wheel arm (402) may extend away from the chassis (200) at an angle to the x-axis and the y-axis; and the resilient suspension unit (420) extends between the chassis (200) and the chassis first wheel arm (402).
  • the resilient suspension unit (420) may comprise at least one of air springs, switchable shock absorbers, hydropneumatic, hydrolastic and hydragas suspensions, wherein the resilient suspension unit (420) is configured to vary its spring stiffness.
  • the chassis suspension system (400) may further comprise a first leg strut (240), the first leg strut (240) pivotably attached to the chassis (200) at a coupling end (242), and extending to a foot (244) configured for engagement with the support surface (500) to support the chassis (200) apart from the support surface (500).
  • the unladen mass of the self-propelled gun system (10) may be no greater than 10 tonnes or no greater than 5 tonnes.
  • a method of operation of a self-propelled gun system (10) defining a recoil mitigation system (100), the self-propelled gun system (10) comprising: a chassis (200) extending along an x-axis, a first end (202) of the chassis (200) and a second end (204) of the chassis (200) spaced apart from one another along the x-axis; the chassis (200) extending along a y-axis, a first side (206) of the chassis (200) and a second side (208) of the chassis (200) spaced apart from one another along the y-axis; the x-axis being at right angles to the y-axis; a chassis suspension system (400) comprising a first wheel arm (402) extending away from the chassis (200) to a first wheel (404), the first wheel (404) being rotatably mounted on the first wheel arm (402), the first wheel (404) configured for engagement with a support surface (500), the first wheel arm (402) and first wheel
  • the predetermined relationship may be a function of: a mass of a projectile (340) being fired from the gun barrel (300); the type and mass of charge provided to propel the projectile (340); and/or angle of the barrel axis (302) relative to the x-axis.
  • a self propelled gun system which is relatively lightweight and yet stable, with a suspension system configured for transit and gun operation.
  • the present disclosure relates to a self-propelled gun system 10 having a recoil mitigation system 100. This is shown diagrammatically Figures 1 to 8 . Figures 9, 10 show how such a device may look when reduced to practice.
  • the self-propelled gun system 10 may comprise a powertrain 800 such as an internal combustion engine, electric motor or hybrid, wherein the drive may be transferred by drive shafts to wheels 404, 1404. Other apparatus on the system 10 may be electrically powered.
  • the wheels 404, 1404 are coupled to and driveable by the powertrain 800 to propel the gun system 10.
  • the unladen mass of the self-propelled gun system 10 may be no greater than 10 tonnes.
  • the unladen mass of the self-propelled gun system 10 may be no greater than 5 tonnes.
  • the self-propelled gun system 10 comprises a chassis 200 extending along an x-axis.
  • a first end 202 of the chassis 200 and a second end 204 of the chassis 200 are spaced apart from one another along the length of the chassis 200 along the x-axis.
  • the chassis 200 extends along a y-axis along the width of the chassis 200.
  • a first side 206 of the chassis 200 and a second side 208 of the chassis 200 are spaced apart from one another across the width of the chassis 200 along the y-axis.
  • the x-axis is at right angles to the y-axis.
  • the gun barrel 300 has a barrel axis 302, the barrel 300 being mounted to the chassis 200 by a pivot mount 304.
  • the barrel 300 is pivotable relative to the x-axis about a pivot axis 310 aligned and/or parallel with the y-axis.
  • the barrel 300 may has a front end 320, with a muzzle 322 provided towards the front end 320.
  • the barrel 300 has a rear end 324, with a breech assembly 326 provided at the rear end 324.
  • the gun barrel 300 may be coupled to a recoil mechanism 330 comprising a recuperator 332 for mitigating a recoil force Fr along the barrel axis 302 from the firing of a projectile 340 from the gun barrel 300.
  • the self-propelled gun system 10 further includes a chassis suspension system 400 comprising a first wheel arm 402 extending away from the chassis 200 to a first wheel 404.
  • the chassis first wheel arm 402 may extend away from the chassis 200 towards a support surface 500 (e.g. the ground) at an angle to the x-axis, y-axis and/or z-axis.
  • the first wheel 404 is rotatably mounted on the first wheel arm 402.
  • the self-propelled gun system 10 may further comprise a second wheel arm 1402 configured, mounted and operable as the first wheel arm 402. As with the first wheel arm 402, the second wheel arm 1402 extends away from the chassis 200, towards the support surface 500 (e.g. the ground) at an angle to the x-axis, y-axis and/or z-axis, to a second wheel 1404.
  • the second wheel 1404 is rotatably mounted on the second wheel arm 1402.
  • the second wheel arm 1402 is configured to operate in the same way as the first wheel arm 402. Hence features and operation of the first wheel arm 402 herein described are equally applicable to the second wheel arm 1402, even where the second arm 1402 is not specifically referenced.
  • the first wheel 404 is configured for engagement with the support surface 500 (e.g. the ground).
  • the first wheel arm 402 and first wheel 404 are configured to support the chassis 200 a distance Dz apart from the support surface 500 in the z-axis, the z-axis being perpendicular to the x-axis and y-axis.
  • the second wheel 1404 is configured for engagement with the support surface 500, the second wheel arm 1402 and second wheel 1404 configured to support the chassis 200 the distance Dz apart from the support surface 500 in the z-axis.
  • the second wheel arm 1402 and second wheel 1404 are configured to support the chassis 200 together with the first wheel arm 402 and first wheel 404 the distance (Dz) apart from the support surface 500 in a z-axis.
  • the first wheel arm 402 and second wheel arm 1402 extend away from each other on opposite sides of the chassis 200. That is to say the first wheel arm 402 and second wheel arm 1402 are opposite each other across the x-axis. Put another way, the first wheel arm 402 extends away from the chassis 200 from the first side 206 of the chassis 200 and the second wheel arm 1402 extends away from the chassis 200 from the second side 208 of the chassis 200.
  • the wheel arm 402 and the second wheel arm 1402 form a pair of wheel arms 402, 1402 which are attached a pair of wheels 404, 1404.
  • the gun system 10 may comprise further pairs of wheel arms 402, 1402 and wheels for 404, 1404.
  • the or each pair of wheel arms 402, 1402 work together to support the chassis 200 the distance Dz apart from the support surface 500 in a z-axis.
  • a single wheel arm 402 and wheel 404 may be provided in isolation (i.e. without a corresponding second wheel arm 1402 and second wheel 1404), for example where the self-propelled vehicle has only three wheels, two of which form a pair opposite one another across the x-axis, and the third being spaced apart from the others along the x-axis.
  • the chassis suspension system 400 may further comprise a first leg strut 240, the first leg strut 240 pivotably attached to a side 206, 208 of the chassis 200 at a coupling end 242, and extending to a foot 244 configured for engagement with the support surface 500 to support the chassis 200 apart from the support surface 500.
  • a second leg strut 204 may be provided which is attached to, and extends away from, the second side 208 of the chassis 200. Such pairs of leg struts may be provided along the length of the chassis 200.
  • the leg strut(s) are configured to provide additional stability in addition to the wheel arms 402, 1402 and wheels 404, 1404.
  • the chassis suspension system 400 forms at least part of the recoil mitigation system 100 and is configured such that the recoil mitigation system 100 is operable such that a maximum recoil damping distance Dz_max of the chassis 200 from the support surface 500 in the z-axis for a gun firing condition is variable to thereby vary the available damping distance (Dz) in the z-axis to absorb recoil force (Fr) from the firing of a projectile 340 from the gun barrel 300.
  • the moveable distance ( distance Dz ) by the chassis 200 relative to the support surface 500 i.e. the damping distance
  • resistance to motion to provide recoil mitigation (i.e.
  • damping may be adjusted by pivoting the first wheel arm 402 (and/or second wheel arm 1402) relative to the chassis 200 to change the distance Dz the chassis 200 can/will move relative to the support surface 500 in the z-axis to the set maximum recoil damping distance (Dz_max) for the gun firing condition.
  • a resilient suspension unit 420 is provided to bias the first wheel arm 402.
  • a resilient suspension unit 1420 may be provided to bias the second wheel arm 1402.
  • the resilient suspension unit 420 may extend between the chassis 200 and the chassis first wheel arm 402.
  • the resilient suspension unit 1420 may extend between the chassis 200 and the chassis second wheel arm 1402.
  • the resilient suspension units 420, 1420 are provided to bias the first wheel arm 402 and second wheel arm 1420 to move the chassis 200 back to being spaced part from the support surface 500 by the set maximum recoil damping distance Dz_max after displacement of the chassis 200 away from the set maximum recoil damping distance Dz_max.
  • the displacement may be in response to a recoil force Fr from the firing of a projectile 340 from the gun barrel 300.
  • the set maximum recoil damping distance Dz_max i.e. available for absorbing recoil movement
  • the chassis suspension system 400 is operable to vary the damping distance and/or damping resistance by pivoting the wheel arms 402, 1402 relative to the chassis 200 to raise and lower the chassis 200 to accommodate change in direction of recoil forces because of the angle of the barrel axis 302.
  • the maximum recoil damping distance Dz_max of the chassis 200 from the support surface 500 in the z-axis may be increased to thereby increase the available damping distance Dz (i.e. damping resistance available for absorbing recoil movement) in the z-axis to absorb recoil force Fr from the firing of a projectile 340 from the gun barrel 300.
  • the maximum recoil damping distance Dz_max of the chassis 200 from the support surface 500 in the z-axis for that gun firing condition may be decreased, and the distance Dy of the first wheel 404 from the x-axis in a direction along the y-axis is increased.
  • This increases the stability of the chassis 200 along the x-axis and y-axis to maintain orientation of the chassis 200 when recoil is generated in response to recoil force Fr from the firing of a projectile 340 from the gun barrel 300.
  • the self-propelled gun system 10 may further comprise an actuator operable to adjust the maximum recoil damping distance Dz_max of the chassis 200 from the support surface 500 in a z-axis in response to an input from a user.
  • the chassis suspension system 400 may also be configured to position the chassis 200 at a preferred height above the support substrate 500 for transit, for example when the self-propelled vehicle is travelling from one location to another over land.
  • the height of the chassis 200 above the ground when in transit mode may be within the range of values of maximum recoil damping distance Dz_max.
  • the height of the chassis 200 above the ground when in transit mode may be greater than or less than the range of values of maximum recoil damping distance Dz_max.
  • chassis suspension system 400 may also be used to provide normal suspension function when the vehicle is in transit, it also provides a recoil mitigation function, as will be described.
  • the resilient suspension unit 420 may comprise at least one of air springs, switchable shock absorbers, hydropneumatic, hydrolastic, and hydragas suspensions.
  • the resilient suspension unit 420 may be configured to vary its spring stiffness.
  • the resilient suspension unit 420 may be configured to vary its damping stiffness.
  • the gun barrel 300 may be constrained to pivot about the pivot axis 310 aligned with the y-axis in a plane of movement extending through the x-axis and z-axis.
  • the gun barrel 300 may be pivotably mounted using a trunnion mount.
  • the gun barrel 300 is constrained to pivot about the pivot axis 310 between 5 degrees below the x-axis and 75 degrees above the x-axis. That is to say, the gun barrel 300 is constrained to pivot about the pivot axis 310 between -5 degrees relative to the x-axis (i.e. pointing downwards) and +75 degrees relative to the x-axis (i.e. pointing upwards).
  • the gun barrel 300 is rotatable about the z-axis, limited (i.e. constrained) to be rotatable no more than +/- 5 degrees from alignment with x-axis around the z-axis.
  • the trunnion mount may be rotatably mounted to rotate about the z-axis.
  • the maximum recoil damping distance Dz_max i.e. height of the chassis 200 from the support surface 500 in the z-axis for that gun firing condition may be decreased (for example, moving from the position in figure 5 to the position in figure 7 ).
  • the distance Dy of the first wheel 404 from the x-axis in a direction along the y-axis is increased from Dy1 in figure 5 to Dy3 in figure 7 to thereby increase the stability of the chassis 200 along the x-axis and y-axis and thereby maintain orientation of the chassis 200 in response to recoil force Fr from the firing of a projectile 340 from the gun barrel 300.
  • the distance Dy of the first wheel 404 from the x-axis in a direction along the y-axis is increased from Dy1 in figure 5 to Dy3 in figure 7 .
  • the chassis 200 may be brought closer to the ground 500. This is beneficial since, as the barrel axis 302 moves towards the horizontal, the reaction to recoil in response to recoil force Fr from the firing of a projectile 340 from the gun barrel 300 will cause the chassis 200 to move along the substrate 500, and hence the extra width provided by the extended wheel arms from Dy1 to Dy2 or Dy3 provides stability.
  • the self-propelled gun system 10 may further comprise a wheel brake control device 600 configured for applying a braking force to the wheels 404, 1404 in response to movement of the chassis 200 in the x-axis by a recoil force Fr from the firing of a projectile 340 from the gun barrel 300.
  • a wheel brake control device 600 configured for applying a braking force to the wheels 404, 1404 in response to movement of the chassis 200 in the x-axis by a recoil force Fr from the firing of a projectile 340 from the gun barrel 300.
  • the brake control device 600 is configured for applying the braking force to the rotatable wheel 404, 1404 after the firing of a projectile 340 from the gun barrel 300 and after the rotatable wheel 404, 1404 has started rotating (e.g. moving/spinning) along the support surface 500 in response the firing of a projectile 340 from the gun barrel 300.
  • the brake control device 600 is configured to gradually and/or intermittently apply the braking force to the respective rotatable wheel 404, 1404 after the wheel 404, 1404 has started rotating. This arrangement is operable to prevent wheel skid.
  • the brake control device 600 may be a regenerative braking device 602, and the regenerative braking device 602 may be operably linked with a rechargeable electric storage device 700 and the at least one first wheel 404 for generating an electrical current by decelerating the at least one first wheel (404) and dissipating the recoil of the self-propelled gun system 10.
  • the brake control device 600 may be a regenerative braking device 602 or friction braking device 604.
  • the regenerative braking device 602 may be operably linked with a rechargeable electric storage device (e.g. battery) 700 and the at least one wheel 404 for generating an electrical current by decelerating the at least one wheel 404 and dissipating the recoil of the self-propelled gun system 10.
  • a rechargeable electric storage device e.g. battery 700
  • the at least one wheel 404 for generating an electrical current by decelerating the at least one wheel 404 and dissipating the recoil of the self-propelled gun system 10.
  • Electrical power generated by the regenerative braking device 602 may be stored by the battery 700.
  • the self-propelled gun system 10 may further comprise a processor 610 in communication with the regenerative braking device 602 and to the rechargeable electric storage device 700 such that in response to a first movement of the chassis 200 in the x axis, the processor 610 causes the regenerative braking device 602 to act on (e.g. decelerate) the first wheel 404.
  • the processor 610 may be operable to cause the regenerative braking device 602 to act on (e.g. decelerate) one or more of the other wheels on the gun system.
  • the platform/chassis 200 is supported on wheels 404, 1404 via a suspension system 400.
  • the horizontal component of recoil forces are absorbed by braking the wheels 404, 1404 i.e. allowing platform to start to travel during recoil (hence with no brake applied, and hence with no braking force applied), and then engaging brake 600, of whatever kind, when recoil finished (i.e. after firing of the projectile).
  • the suspension 400 plays almost no part in mitigating recoil in this configuration (hence no suspension is shown in this figure).
  • suspension 400 As illustrated in figure 4 , vertical component of recoil forces are absorbed by suspension 400, which may be jacked up higher to produce a greater distance of travel to provide damping when the angle of the barrel 300 relative to horizontal is increased.
  • the brake device 600 plays almost no part in mitigating recoil in this configuration (hence no wheels 404, 1404 are shown).
  • the apparatus of the present invention may be operated according to a method such that, for each gun firing condition the first wheel arm 402 and/or second wheel arm 1402 are pivoted relative to the chassis 200 to change the distance of the chassis 200 from the support surface 500 in the z-axis to the set maximum recoil damping distance Dz_max (e.g. distance of travel to provide damping) for the gun firing condition.
  • Dz_max e.g. distance of travel to provide damping
  • the wheel 404, 1404 brake control device 600 is configured for applying a braking force to the rotatable wheel 404, 1404 in response to movement of the chassis 200 in the x-axis by a recoil force (Fr) from the firing of a projectile 340 from the gun barrel 300.
  • the brake control device 600 is controlled to apply the braking force to the rotatable first wheel 404 after the firing of a projectile 340 from the gun barrel 300. That is to say, when the projectile is fired, the wheels 404, 1404 are free to rotate/move. Only after the firing of the projectile is braking force applied.
  • the set maximum recoil damping distance Dz_max of the chassis 200 from the support surface 500 for the gun firing position may be varied to accommodate varying recoil force directions due to the angle of the barrel 300 relative to x-axis according to a predetermined relationship.
  • the predetermined relationship may be a function of: a mass of a projectile 340 being fired from the gun barrel 300, the type and mass of charge provided to propel the projectile 340 and/or angle of the barrel axis 302 relative to the x-axis.
  • the predetermined relationship may be a function of: expected recoil force and/or angle of the barrel axis 302 relative to the x-axis.
  • the chassis suspension system 400 is used to absorb the force, the suspension 400 having been adjusted to increase damping distance and/or to increase damping resistance to add available recoil stroke. At high angle firing conditions, it is less likely the vehicle will tip, and the extra damping distance and/or damping resistance provided by the chassis suspension system is needed to stop the chassis 200 from contacting the support surface 500.
  • the suspension 400 may be adjusted to a suitable intermediate height, optimized to counter the vertical and horizontal elements of the shot load using the suspension 400 and free recoil of the platform.
  • the free recoil can only be achieved if there is little to no traverse at the cannon/elevating mass so that recoil is always straight back through the wheels/tracks, thereby allowing them to roll. This requires all/most of the gun traversing to be done at a whole platform level by using steering/the wheels and/or suspension adjustments.
  • a self-propelled gun system which is relatively lightweight and yet stable, with a suspension system configured for transit and gun operation.
  • the reduction in weight is achievable, in part, by combining the suspension system for transit as well as restricting the amount the barrel can pivot about the y-axis and/or z-axis.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Vibration Dampers (AREA)
EP22275069.7A 2022-05-27 2022-05-27 Selbstfahrendes geschützsystem Pending EP4283239A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22275069.7A EP4283239A1 (de) 2022-05-27 2022-05-27 Selbstfahrendes geschützsystem
PCT/GB2023/051272 WO2023227861A1 (en) 2022-05-27 2023-05-16 A self-propelled gun system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22275069.7A EP4283239A1 (de) 2022-05-27 2022-05-27 Selbstfahrendes geschützsystem

Publications (1)

Publication Number Publication Date
EP4283239A1 true EP4283239A1 (de) 2023-11-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP22275069.7A Pending EP4283239A1 (de) 2022-05-27 2022-05-27 Selbstfahrendes geschützsystem

Country Status (1)

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EP (1) EP4283239A1 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB158023A (en) * 1919-10-03 1921-02-03 Holt Mfg Co Improvements in and relating to tractor gun mountings
GB1438403A (en) * 1972-07-25 1976-06-09 Bofors Ab Vehicle carrying a gun

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB158023A (en) * 1919-10-03 1921-02-03 Holt Mfg Co Improvements in and relating to tractor gun mountings
GB1438403A (en) * 1972-07-25 1976-06-09 Bofors Ab Vehicle carrying a gun

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