# conical surface

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## conical surface:

see conecone
or conical surface,
in mathematics, surface generated by a moving line (the generator) that passes through a given fixed point (the vertex) and continually intersects a given fixed curve (the directrix).
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## conical surface

[′kän·ə·kəl ′sər·fəs]
(mathematics)
A surface formed by the lines which pass through each of the points of a closed plane curve and a fixed point which is not in the plane of the curve.

## conical surface

A surface extending from the periphery of the horizontal surface outward and upward at a slope of 20 horizontal to 1 vertical for a horizontal distance of 4000 ft. It is an imaginary surface, in which any object that projects above the surface is considered an obstruction to air navigation.
References in periodicals archive ?
SYR] unchanged, the flight trajectory of receiver should also be on a conical surface.
That can be easily shown after flattening the conical surface on the Euclidean plane [R.
If there are n layers of hexagons on the conical surface around triangle, then we number n denotes the number of layers of hexagons and number in the subscript shows the sides of polygon which acts as the core of nanocones.
This is to say, in 3-D geometry, sensor needs to move in a conical surface to make cos[beta](n) cos[alpha](n) a constant.
InspF Cylindrical or conical surface represents a product mating where just feature own geometry participates in the functional chain.
The tool moves by oscillating motion in direction parallel with the axis of this cylindrical surface that can cause the damage of the created conical surface even before the superfinishing.
The obtained insert shape required additionally the spark machining of three recesses on the conical surface, to be made after heat treatment by hardening.
STEP Entity, Cartesian Point, Line, Circle, Ellipse, Parabola, Hyperbola, PolyLine, Composite Curve, Trimmed Curve, Bspline Curve, Plane, Cylindrical Surface, Conical Surface, Spherical Surface, Toroidal Surface, Surface of Linear Extrusion, Surface of Revolution, B-spline Surface, Rectangular Trimmed Surface, Curve Bounded Surface, Offset Surface, Manifold Solid Brep, Shell Based Surface Model.

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