Frictional roll control apparatus for a spinning projectile
First Claim
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1. A spinning projectile having a roll axis, comprising:
- a front section rotatable about the roll axis;
a rear section rotatable about the roll axis, the rear section rotatably attached to the front section; and
a roll damping apparatus including;
a first portion attached to the front section, a second portion attached to the rear section, wherein the first portion is adapted to cause a frictional force to act on the second portion, the frictional force being effective to control a spin rate of the front section relative to the rear section.
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Abstract
The invention relates generally to a roll damping apparatus for a spinning projectile having a first section and a second section rotatably attached about a roll axis. The roll damping apparatus comprises a first portion attached to the front section, and a second portion attached to the rear section. The first portion is adapted to cause a braking frictional force to act on the second portion, the braking force being effective to control the spin rate of the front section relative to the rear section. The invention further relates to a spinning projectile having a roll damping apparatus.
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Citations
24 Claims
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1. A spinning projectile having a roll axis, comprising:
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a front section rotatable about the roll axis;
a rear section rotatable about the roll axis, the rear section rotatably attached to the front section; and
a roll damping apparatus including;
a first portion attached to the front section, a second portion attached to the rear section, wherein the first portion is adapted to cause a frictional force to act on the second portion, the frictional force being effective to control a spin rate of the front section relative to the rear section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A roll damping apparatus for a spinning projectile having a first section and a second section rotatably attached about a roll axis:
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a first portion attached to the front section a second portion attached to the rear section, wherein the first portion causes a frictional force to act on the second portion, the frictional force being effective to control the spin rate of the front section relative to the rear section. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. The roll damping apparatus of claim 23, wherein the first portion includes a magnetic field generator adapted to produce a magnetic field that causes braking member to contact the first portion.
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24-1. A method of controlling the roll of a projectile having a front section and rear section rotatably attached about a roll axis, and a roll damping apparatus, comprising:
selectively controlling a first portion of the roll damping apparatus attached to the front section to cause a frictional force to act on a second portion of the roll damping apparatus attached to the rear section, the frictional force being effective to control a spin rate of the front section relative to the rear section.
Specification