Back to results
US 2021/0063147 A1Published application
Method for simulating surface roughness on an aircraft
AssigneeAirbus Operations S.L.
InventorAlvaro JARA RODELGO
Life of this patent
Estimating the term…
Abstract
A method for simulating surface roughness on an aircraft part surface and a method for testing the behavior on flight of this aircraft part with surface roughness simulated, wherein the surface roughness simulation includes forming a roughness pattern on the aircraft part surface using a laser.
Claims19
A method for simulating a surface roughness type on a surface of an aircraft part, the method comprising:
- a) selecting a surface roughness type to be simulated,
- b) providing or determining parameters associated to the selected surface roughness type, wherein the parameters comprise a maximum roughness of the selected surface roughness type and a density of the selected surface roughness type,
- c) obtaining a pattern that corresponds to the parameters,
- d) providing a thickness of a skin having the surface, wherein the thickness is greater than the maximum roughness parameter, and
- e) forming the pattern on at least a portion of the surface by laser etching the pattern into the surface;
- wherein the pattern is a projectable lattice comprising a plurality of longitudinal projections and a plurality of transverse projections being perpendicular to the longitudinal projections, both of the pluralities of longitudinal and transverse projections have heights corresponding to the maximum roughness of selected surface roughness type, and a spacing between adjacent ones of the longitudinal projections corresponds to the density parameter.
3 more elements
A method for testing an aerodynamic behavior under flight conditions of an aircraft part, the method comprising:
- providing an aircraft part with a simulated surface roughness laser etched on the surface of said aircraft part,
- positioning the aircraft part inside a wind tunnel,
- applying flight conditions within the wind tunnel by directing an airflow through the wind tunnel over the aircraft part in the wind tunnel, and
- testing the behavior of the aircraft part.
1 more element
A method comprising:
- selecting a surface roughness type to be simulated,
- identifying or determining parameters associated with the selected surface roughness type, wherein the parameters include a maximum roughness and a density of the selected surface roughness type,
- obtaining a pattern based on the parameters, wherein the pattern is a projectable lattice comprising a plurality of longitudinal projections and transverse projections perpendicular to the longitudinal projections, and a spacing between adjacent ones of the longitudinal projections corresponds to the density parameter;
- etching the pattern onto a surface of an aircraft by a laser controlled to etch the pattern into the surface, wherein a depth etched by the laser in the spaces between the adjacent longitudinal projections corresponds to a dimension of the maximum roughness parameter, and
- obtaining the aircraft part with the pattern in the surface which corresponds to the selected roughness type.
2 more elements
Dependencies are inferred from the claim text.