US3854378A - Device for stabilization of an oscillating mass - Google Patents

Device for stabilization of an oscillating mass Download PDF

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Publication number
US3854378A
US3854378A US00377288A US37728873A US3854378A US 3854378 A US3854378 A US 3854378A US 00377288 A US00377288 A US 00377288A US 37728873 A US37728873 A US 37728873A US 3854378 A US3854378 A US 3854378A
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US
United States
Prior art keywords
oscillating mass
mass
torque
gun
oscillating
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.)
Expired - Lifetime
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US00377288A
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English (en)
Inventor
J Vogel
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.)
NAT DEFENCE DELEGATION MINISTE
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NAT DEFENCE DELEGATION MINISTE
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Application filed by NAT DEFENCE DELEGATION MINISTE filed Critical NAT DEFENCE DELEGATION MINISTE
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    • 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
    • F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
    • F41A27/28—Electrically-operated systems
    • 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
    • F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
    • F41A27/06—Mechanical systems
    • F41A27/24—Elevating gear
    • 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
    • F41A27/00—Gun mountings permitting traversing or elevating movement, e.g. gun carriages
    • F41A27/26—Fluid-operated systems

Definitions

  • the oscillating mass is a gun pivoted about a horizontal axis passing through or close to the center of gravity, having at one of its ends a metallic sector constituting the rotor of a stabilizing torque producer whose stator is integral with the gun turret and constitutes the inductor or field winding of the torque producer or motor.
  • the mass transfer device preferably comprises an arrangement for automatically transferring liquid between tanks mounted on the oscillating mass on both sides of the axis of 0scillation.
  • the present invention relates to a device for stabilizing an oscillating mass, such as a weapon or an optical or electronic instrument mounted with two degrees of freedom on a moving frame.
  • the oscillating mass stabilizer arrangement of the invention is intended to surmount the foregoing limitations, leading to an advance in performance of substantial magnitude.
  • the arrangement comprises means for transmission of torque to the oscillating mass, constituted by very low viscosity torque producing drives, or torque motors with very slight viscosity, mounted in direct engagement on the oscillating mass, and means for automatic correction of either systemic or arbitrary or random imbalances, constituted by a mass transfer device mounted directly on the assembly that is to be stabilized.
  • the single FIGURE is a diagrammatic or schematic view of an embodiment of a device according to the invention, applied to a stabilizing mechanism for a turret mounted gun.
  • a gun I is mounted on a turret (not shown) that pivots about an axis XX, selected to pass through as closely as possible through the center of gravity of the gun that constitutes the oscillating mass.
  • Gun 1 has a cradle 3 that is integral with a metallic sector 2 constituting the rotor of a stabilizing torque producer or motor with very low viscosity, whose stator 4 is integral with the turret and comprises the inductor or field winding.
  • Torque producer or motor 2, 4 is electrically piloted or driven by amplifier 6 disposed in control box 5.
  • means for automatic correction of systemic and random imbalances comprises a device for transfer of mass, mounted directly on the unit to be stabilized.
  • This mass transfer device is constituted by two tanks 7, 7a mounted on the gun, on both sides of axis XX Tanks 7, 7a contain a certain amount of liquid that constitutes a mass that can be transferred from one tank 7 or 7a to the other by action of a double acting pumping unit 8.
  • the motor of pumping unit 8 is itself controlled by an amplifier 9.
  • Amplifiers 6 and 9 which respectively control inductor 4 of the torque producer and pumping unit 8 are controlled by the difference applied at 10 between the velocity command signal transmitted by lead 11 and issuing from the aiming station 12 and the velocity signal of the gun transmitted by lead 13, measured by gyrometer I4 mounted on cradle 3 of the gun.
  • gyrometer I4 mounted on cradle 3 of the gun.
  • the described device does not allow interlocking of the stabilizer assembly, manual aiming, or execution of rapid rally operations. It is, therefore, necessary to retain a standard gearing arrangement, though one that can be engaged.
  • a standard gearing that comprises a toothed wheel 15 meshing with a toothed sector 16, integral with cradle 3, the toothed wheel being rigidly connected to a shaft 19 which, by means of an electromagnetic clutch 17, can be connected to standard mechanisms 18 for manual aiming and rapid rallying.
  • clutch 17 is in the released position as mentioned above.
  • the drive must be piloted by a power amplifier in a special way.
  • This arrangement must allow simultaneously the command and the stabilizing of the oscillating mass.
  • the command function is attained by causing a couple applied to the oscillating mass to correspond to the amplifier input.
  • the stabilizer function is effected by making this couple independent of the angle that the oscillating mass makes with the moving frame, as well as of the speed, acceleration, etc. of this angle. Practically this is attained by use of an amplifier that is slaved in current, and a motor with high coefficient of electromotive couple and low coefficient of counter electromotive couple. It is in this sense that it is to be understood that the drive has a low viscosity.
  • a stabilization device comprising means for transmission of torque to the oscillating mass, said means comprising a metallic sector carried by said oscillating mass at one of its ends and constituting the rotor of a stabilizing torque producing drive with very low viscosity whose stator is integral with the frame and constitutes the inductor, and means for automatic correction of systemic and random imbalances comprising a mass transfer device mounted directly on the mass to be stabilized.
  • the oscillating mass comprises a gun pivotal about a horizontal axis passing as closely as possible through the center of gravity of the oscillating mass, the metallic sector constituting the rotor of the stabilizing torque producer being carried by said gun at one of its ends and the stator of said stabilizing torque producer being integral with the turret of said gun.
  • the mass transfer device comprises two tanks mounted on the gun, on respective sides of the axis of oscillation, enclosing a liquid constituting a mass that can be transferred from one tank to the other, and pump means for transferring said liquid from one tank to the other.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Testing Of Balance (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US00377288A 1972-07-07 1973-07-09 Device for stabilization of an oscillating mass Expired - Lifetime US3854378A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7224598A FR2192665A5 (US06650917-20031118-M00005.png) 1972-07-07 1972-07-07

Publications (1)

Publication Number Publication Date
US3854378A true US3854378A (en) 1974-12-17

Family

ID=9101500

Family Applications (1)

Application Number Title Priority Date Filing Date
US00377288A Expired - Lifetime US3854378A (en) 1972-07-07 1973-07-09 Device for stabilization of an oscillating mass

Country Status (7)

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US (1) US3854378A (US06650917-20031118-M00005.png)
CH (1) CH572199A5 (US06650917-20031118-M00005.png)
DE (1) DE2334496A1 (US06650917-20031118-M00005.png)
FR (1) FR2192665A5 (US06650917-20031118-M00005.png)
GB (1) GB1440017A (US06650917-20031118-M00005.png)
IT (1) IT988852B (US06650917-20031118-M00005.png)
SE (1) SE420021B (US06650917-20031118-M00005.png)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480524A (en) * 1980-10-27 1984-11-06 Aktiebolaget Bofors Means for reducing gun firing dispersion
US4570530A (en) * 1983-12-14 1986-02-18 Rca Corporation Workpiece alignment system
US4591772A (en) * 1984-12-12 1986-05-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Load positioning system with gravity compensation
WO1986006157A1 (en) * 1985-04-15 1986-10-23 Litton Systems, Inc. Equilibrator assembly for a gun system
US4949026A (en) * 1987-12-07 1990-08-14 Mead John A Robot arm space stabilizer
US5012174A (en) * 1988-06-20 1991-04-30 Sperry Marine Inc. Method and apparatus for countering vibrations of a platform
US20070144338A1 (en) * 2005-12-12 2007-06-28 Stefan Gerstadt Weapon having an eccentrically-pivoted barrel
US20220252370A1 (en) * 2019-07-02 2022-08-11 BAE Systems Hägglunds Aktiebolag Arrangement and method for balancing a gun barrel of a vehicle mounted weapon system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE432667B (sv) * 1982-08-25 1984-04-09 Ffv Affersverket Granatkastarlavett med automatisk instellning av stodbenens lengd
FR2857071B1 (fr) * 2003-07-02 2005-09-30 Giat Ind Sa Dispositif d'amortissement actif d'une arme par motorisation secondaire accordee

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193446A (en) * 1936-05-18 1940-03-12 Cecil P Caulkins Gun mounting
US2391965A (en) * 1942-02-10 1946-01-01 Westinghouse Electric Corp Position regulated gun mount

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193446A (en) * 1936-05-18 1940-03-12 Cecil P Caulkins Gun mounting
US2391965A (en) * 1942-02-10 1946-01-01 Westinghouse Electric Corp Position regulated gun mount

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480524A (en) * 1980-10-27 1984-11-06 Aktiebolaget Bofors Means for reducing gun firing dispersion
US4570530A (en) * 1983-12-14 1986-02-18 Rca Corporation Workpiece alignment system
US4591772A (en) * 1984-12-12 1986-05-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Load positioning system with gravity compensation
WO1986006157A1 (en) * 1985-04-15 1986-10-23 Litton Systems, Inc. Equilibrator assembly for a gun system
US4809585A (en) * 1985-04-15 1989-03-07 Litton Systems, Inc. Equilibrator assembly for a gun system
US4949026A (en) * 1987-12-07 1990-08-14 Mead John A Robot arm space stabilizer
US5012174A (en) * 1988-06-20 1991-04-30 Sperry Marine Inc. Method and apparatus for countering vibrations of a platform
US20070144338A1 (en) * 2005-12-12 2007-06-28 Stefan Gerstadt Weapon having an eccentrically-pivoted barrel
US7597041B2 (en) * 2005-12-12 2009-10-06 Moog Gmbh Weapon having an eccentrically-pivoted barrel
US20220252370A1 (en) * 2019-07-02 2022-08-11 BAE Systems Hägglunds Aktiebolag Arrangement and method for balancing a gun barrel of a vehicle mounted weapon system

Also Published As

Publication number Publication date
IT988852B (it) 1975-04-30
FR2192665A5 (US06650917-20031118-M00005.png) 1974-02-08
DE2334496A1 (de) 1974-01-24
SE420021B (sv) 1981-09-07
GB1440017A (en) 1976-06-23
CH572199A5 (US06650917-20031118-M00005.png) 1976-01-30

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