|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 14|
A method and systems are disclosed for reducing fluid flow noise. The method and systems use a thermal mechanism to deploy a flap edge fence during landing and/or other operating conditions, and stow the flap edge fence during other operational conditions such as cruise. The flap edge fence is controlled passively by ambient temperature or actively by a controller based on temperature changes corresponding to various operating conditions.
1. A method for reducing airflow noise for an aircraft having, a wing main element, a flap coupled to the wing main element, and a flap edge fence coupled to the flap, the method comprising: shaping the flap edge fence into a deployed shape and position for a first set of flight conditions to reduce the airflow noise; andshaping the flap edge fence into a stowed shape and position for a second set of flight conditions to reduce drag. 2. The method according to claim 1, wherein the flap edge fence is made of a shape memory alloy and is reconfigured in res...