The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 03, 2016
Filed:
Mar. 26, 2010
Kazuhide Isotani, Kakamigahara, JP;
Kenji Hayama, Kakamigahara, JP;
Toshiyuki Kumada, Amagasaki, JP;
Masaru Ono, Amagasaki, JP;
Kazuhide Isotani, Kakamigahara, JP;
Kenji Hayama, Kakamigahara, JP;
Toshiyuki Kumada, Amagasaki, JP;
Masaru Ono, Amagasaki, JP;
THE SOCIETY OF JAPANESE AEROSPACE COMPANIES, Tokyo, JP;
KAWASAKI JUKOGYO KABUSHIKI KAISHA, Hyogo, JP;
SUMITOMO PRECISION PRODUCTS CO., LTD., Hyogo, JP;
Abstract
A method for attenuating aerodynamic noise from a landing gear may include researching a start point of a shear layer as a flow field characteristic of a region in the vicinity of an original shape of the landing gear, and adding a plate-shaped object in the vicinity of the start point, changing the start point to an edge portion of the plate-shaped object to make the shear layer farther from the original shape. Another method for attenuating aerodynamic noise from a landing gear may include researching a static pressure and an airflow velocity in a region in the vicinity of the landing gear as a flow field characteristic of the region, and adding a plate-shaped object covering a surface of the landing gear which is different from a surface facing an upstream side in an airflow direction, increasing the static pressure in the region to reduce the airflow velocity.