Guidance control for spinning or rolling projectile
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F42B-010/64
F42B-010/26
출원번호
US-0005175
(2011-01-12)
등록번호
US-8426788
(2013-04-23)
발명자
/ 주소
Geswender, Chris E.
출원인 / 주소
Raytheon Company
대리인 / 주소
Renner, Otto, Boisselle & Sklar, LLP
인용정보
피인용 횟수 :
3인용 특허 :
9
초록▼
A projectile, air vehicle or submersible craft with a spinning or rolling fuselage, rotating on its axis, has a collar which can be positioned relative to a longitudinal axis of the projectile using aerodynamic forces. Aerodynamic surfaces, such as lift-producing surfaces, for example tails or canar
A projectile, air vehicle or submersible craft with a spinning or rolling fuselage, rotating on its axis, has a collar which can be positioned relative to a longitudinal axis of the projectile using aerodynamic forces. Aerodynamic surfaces, such as lift-producing surfaces, for example tails or canards, are coupled to the collar, and rotate with the collar. An actuator system or mechanism controls orienting of the lift-producing surfaces, such as tilting of the lift producing surfaces, to direct the collar into a desired position relative to a longitudinal axis of the projectile, and to maintain the collar in that position. With such a control the projectile is able to be steered using bank-to-turn maneuvering. The actuator system may use any of a variety of mechanisms to move the lift-producing surfaces, thereby positioning the collar.
대표청구항▼
1. A projectile comprising: a fuselage that rotates about a longitudinal axis of the fuselage; anda collar rotatable relative to the fuselage, wherein the collar includes positionable lift-producing control surfaces that are variably positionable relative to a collar housing of the collar; anda mech
1. A projectile comprising: a fuselage that rotates about a longitudinal axis of the fuselage; anda collar rotatable relative to the fuselage, wherein the collar includes positionable lift-producing control surfaces that are variably positionable relative to a collar housing of the collar; anda mechanism controlling position of the collar relative to the fuselage by positioning the lift-producing control surfaces;wherein the lift-producing control surfaces are variable-pitch control surfaces; andwherein the mechanism varies pitch of the variable-pitch control surfaces to produce aerodynamic forces to position the collar. 2. The projectile of claim 1, wherein the collar is part of a fusewell guidance device that is mechanically coupled to the fuselage. 3. The projectile of claim 2, wherein the fusewell guidance device includes a fuse for detonating the projectile. 4. The projectile of claim 1, wherein the mechanism includes a voice coil actuator having coils that are selectively powered to position the positionable lift-producing control surfaces. 5. The projectile of claim 4, wherein the voice coil actuator is operatively coupled to a swash plate that is mechanically coupled to the positionable lift-producing control surfaces; andwherein positioning the swash plate positions the positionable lift-producing control surfaces. 6. The projectile of claim 4, wherein the coils of the voice coil actuator are operatively coupled to magnets that are mechanically coupled to the positionable lift-producing control surfaces. 7. The projectile of claim 1, wherein the mechanism includes motors that are mechanically coupled to the positionable lift-producing control surfaces. 8. The projectile of claim 1, wherein the mechanism includes solenoids that are operatively coupled to the positionable lift-producing control surfaces such that selectively powering the solenoids selectively tilts the positionable lift-producing control surfaces. 9. The projectile of claim 1, further comprising a position-determining apparatus for determining position of the collar relative to the fuselage. 10. The projectile of claim 1, wherein the collar also includes fixed-pitch lift-producing control surfaces. 11. The projectile of claim 10, wherein the fixed-pitch control surfaces are diametrically opposed to one another; andwherein the positionable control surfaces are diametrically opposed to one another. 12. The projectile of claim 1, wherein the collar is coupled to a pair of bearing races; andwherein the collar rotates about a central stalk that is fixed to the fuselage. 13. A method of guiding a projectile, the method comprising: positioning a collar of the projectile relative to a spinning fuselage of the projectile, wherein the positioning of the collar is accomplished by selectively controlling positionable lift-producing control surfaces of the collar; andsteering the projectile using lift from the collar. 14. The method of claim 13, wherein the positionable lift-producing control surfaces are variable-pitch control surfaces; andwherein the positioning the control surfaces includes changing pitch of the variable-pitch control surfaces. 15. The method of claim 14, wherein the changing pitch includes rotating the variable-pitch control surfaces about respective axes of the variable-pitch control surfaces. 16. The method of claim 14, wherein the changing the pitch includes changing the pitch with at least one of a motor, a voice control actuator, or a solenoid. 17. The method of claim 13, wherein the collar also includes fixed lift-producing control surfaces. 18. The method of claim 17, wherein the positioning of the collar includes positioning the collar such that the fixed control surfaces provide the lift for the steering. 19. The method of claim 18, wherein the steering is bank-to-turn steering of the projectile accomplished by the lift from the fixed control surfaces. 20. The method of claim 13, wherein the collar is part of a fusewell guidance device that is mechanically coupled to the fuselage.
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이 특허에 인용된 특허 (9)
Sebestyen George (Weston MA) Sinclair Ronald R. (Moultonboro NH) Smith John A. (Bedford MA) Sands Timothy B. (Acton MA) Nussdorfer Theodore J. (Lexington MA), Canard control assembly for a projectile.
Seidel Wolfgang,DEX ; Guischard Frank,DEX, Method for autonomous guidance of a spin-stabilized artillery projectile and autonomously guided artillery projectile for realizing this method.
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