Japan Aerospace Exploration Agency

Mitsubishi Heavy Industries Limited

Kawasaki Jukogyo Kabushiki Kaisha

Tokyo Fluid Research Co., Ltd.

Yuzuru Yokokawa

Kazuomi Yamamoto

Yasushi Ito

Mitsuhiro Murayama

Masataka Kohzai

Kentaro Tanaka

Makoto Hirai

Keizo Takenaka

Yosuke Ueno

Taro Imamura

Tohru Hirai

Takehisa Takaishi

Hideo Omotani

Kazuhide Isotani

Kenji Hayama

Kensuke Hayashi

A leading-edge high-lift device according to an embodiment of the present invention is a leading-edge high-lift device that is deployable and retractable from/into a fixed leading edge of a main wing of an aircraft and includes: a leading edge portion; a trailing edge portion that forms a gap between a trailing edge portion and the main wing during deployment; a cusp portion formed at a lower edge of the leading edge portion; a lower surface portion formed between the cusp portion and the trailing edge portion; and a curved hump portion that is locally provided on a surface of the lower surface portion and protrudes toward the main wing in a cross-sectional shape perpendicular to a wing span direction of the main wing.

Leading-edge high-lift device, wing, and aircraft

A noise reduction apparatus, an aircraft, and a noise reduction method capable of increasing the amount of noise reduction are provided. The noise reduction apparatusincludes a porous platedisposed to face a fluid flow, the porous plateincluding a bend regionbent toward an upstream side of the fluid flow. The bend regionis provided at the end portionof the porous plate, and has a concave R-shape on an upstream side of the fluid flow.

Noise reduction apparatus, aircraft, and noise reduction method

A pressure measure sheet having a sheet shape and having a pressure measure surface, the pressure measure sheet being adapted to be arranged on a surface of a measured object, includes: a plurality of pressure measure ports provided through the pressure measure surface; at least one connection port adapted to be connected to a side of a pressure measure device; and a coupler part including a plurality of through-tubes penetrating the plurality of pressure measure ports and the at least one connection port, in which the pressure measure sheet includes a region in which the plurality of through-tubes are arrayed in nonparallel.

Pressure measure sheet, method of manufacturing a pressure measure sheet, and pressure measuring method

In a high-lift-device, a wing, and noise reduction device for a high-lift-device that are capable of reducing noise generated when a flap is extended, preventing deterioration of aerodynamics characteristic when retracting the flap, and preventing an increase in weight, a flap main body () disposed so as to be extendable/retractable relative to a main wing and a protruding portion (A-) that smoothly protrudes at least at the vicinity of one end portion of a positive-pressure surface (PS) of the flap main body () in a direction away from the flap main body () are provided.

High-lift-device, wing, and noise reduction device for high-lift-device

Growing community of inventors

Tokyo, Japan

Yuzuru Yokokawa