# Cylindrical Surface

## cylindrical surface

[sə′lin·drə·kəl ′sər·fəs]
(mathematics)
A surface consisting of each of the straight lines which are parallel to a given straight line and pass through a given curve. Also known as cylinder.

## Cylindrical Surface

(or cylinder), a surface traced by a line moving parallel to a given fixed line and intersecting a given curve. The fixed line is called the generatrix, and the curve is called the directrix.

If the generatrix of a cylindrical surface is parallel to the z-axis of a rectangular coordinate system, the equation of the surface is F(x, y) = 0. If the generatrix of a cylindrical surface is parallel to the line ax + by + c = 0 in the xy-plane, the equation of the surface has the form z = f(ax + by). If a circle, ellipse, hyperbola, or parabola is the directrix, the resulting cylindrical surface is said to be circular, elliptical, hyperbolic, or parabolic, respectively.

References in periodicals archive ?
Pre-Qualification Criteria: VALVE FORGING MACHINE, CNC TURNING CENTRE, CERRATION MILLING FACILITIES, CYLINDRICAL SURFACE GRINDING MACHINE, WELDING FACILITIES, TOOL & CUTTER GRINDING MACHINE, SURFACE GRINDING MACHINE.
The difference between experimental and simulation results can be explained by the fact that the modeling assumed that the heated cylindrical surface has the same constant temperature.
There are now modular thermal transfer printers that can morph into sophisticated print-and-apply systems via a bolt-on assembly that takes the just-printed label from the release liner and places it on a flat or cylindrical surface.
Therefore in practise, a complex object made up of a combination of these scatterers will have a mixed RCS performance with the cylindrical surface giving us a higher detection probability when compared with the circular surface and at better SNR when compared with the circular scatterer as well.
1] lies on the cylindrical surface, so its x and y coordinates follows the governing equation for cylindrical surface given in Table 1.
With these relations, equilibrium equations for a cylindrical surface of nanometric radius were developed.
These questions can be answered in two ways: analytically, by invoking a complicated double differential scattering cross section in the LAB system, or numerically, by calculating the collision rates for initial neutron trajectories (for neutrons emitted from the internal cylindrical surface of the moderator), simulating the isotropic angular distribution of scattering in the CM coordinate system, and finally by performing analytical transformation of the scattered velocity vectors to the LAB system in order to follow neutron trajectories to the detector.
6, the original cylindrical surface is perpendicular to the top face of the base box, but the triangles generated from the surface are not.
Here the images from three projectors are seamlessly projected on the inside of a cylindrical surface delivering a 180 degree seamless motion picture.
Pre-Qualification Criteria: VALVE FORGING MACHINE, CNC TURNING CENTRE, CERRATION MILLING FACILITES, CYLINDRICAL SURFACE GRINDING MACHINE, WELDING FACILITIES, TOOL& CUTTER GRINDING MACHINE, SURFACE GRINDING MACHINE.
This paper researches on the geometrical property of spiral line in cylindrical surface which is helpful to the variable lead transmission performance.
Let us consider a turned shaft, with two machined surfaces: a cylindrical surface [S.

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