Abstract:
일 실시예에 따른 비행체는, 동체; 상면이 곡면으로 형성되고 상기 동체의 중앙으로부터 양쪽으로 뻗은 주익; 상기 주익의 상면에 구비되어 태양에너지를 전기에너지로 전환하는 태양 전지; 및 상기 주익 하부에 배치되어 상기 태양 전지에서 발생된 전기에너지를 저장하는 에너지 저장부;를 포함하고, 상기 태양 전지는 복수 개의 단위 태양 전지로 마련되어 상기 태양 전지의 효율이 향상되고, 상기 복수 개의 단위 태양 전지에서 출력된 전기에너지 또는 상기 에너지 저장부에 저장된 전기에너지에 의해 체공시간이 연장될 수 있다.
Abstract:
차량용 주행 보조 장치에 연관되며, 차량의 주행안정성 유지되는 주행안정영역을 풍동시험 등을 통해 미리 지정하고, 차량의 일측에 부착되어 2차원 풍향 및 풍속을 측정하는 바람센서; 및 상기 차량의 주행속도와 상기 바람센서로부터 측정되는 풍향 및 풍속 정보를 이용하여 주행 안정성을 판단하는 프로세서를 포함한다.
Abstract:
본 발명은 비행체의 날개에 구비되는 태양광 패널장치와 이를 구비한 비행체 날개 및 비행체에 관한 것으로서, 더욱 상세하게는 태양광을 에너지로 변환할 수 있는 패널을 갖는 한편, 날개의 굽힘 하중이나 거동 등에 의해 패널이 파괴되지 않도록 하기 위한 비행체의 날개에 구비되는 태양광 패널장치와 이를 구비한 비행체 날개 및 비행체에 관한 것이다.
Abstract:
PURPOSE: A natural laminar airfoil for a small jet is provided to enable passengers to cost-efficiently use a plane by reducing fuel consumption. CONSTITUTION: A natural laminar airfoil(200) for a small jet comprises a top surface and a bottom surface. The top surface is curved. The bottom surface is formed in the bottom of the airfoil. A maximum thickness ratio of the airfoil is 14~16%. The airfoil reduces drag by delaying the succession of air current from laminar flow to turbulence flow.
Abstract:
A space shuttle and a reentry attitude control of the space shuttle at low earth orbit are provided to secure stability of the space shuttle attitude reentering the low earth orbit without additional device. A space shuttle comprises a body(100), a nozzle(200) applying a propulsion force to the body, a rudder causing a yaw action in the body, a main wing(300) which is composed of a leading end(310) and a trailing end(320) with a first mounting groove(322) and attached to the body, an elevon which is mounted on the first mounting groove and moves to vary the attack angle, a tail boom(500) formed on the outer end of the main wing trailing end, and a canard(700) which is mounted apart from the main wing on the front side of the body and moves to vary the attack angle.
Abstract:
The present invention provides a photovoltaic cell wing of an unmanned aerial vehicle, which comprises wing frame units installed on both sides of a fuselage, respectively; multiple photovoltaic films adhering to the upper parts of the wing frame units; and thermoplastic films attached to the wing frame units to wrap around the wing frame units and the photovoltaic films. According to the present invention, thermoplastic films are attached to wrap around the wing frame units and the photovoltaic films after attaching the photovoltaic films to the wing frame units of the unmanned aerial vehicle, where no adhesion surfaces are formed on the photovoltaic films and the thermoplastic films, thereby preventing deformation of wings even if the photovoltaic films are deformed. In addition, the photovoltaic films are installed inside the thermoplastic films to prevent power cables of the photovoltaic films from protruding outside, thereby preventing drag of the photovoltaic cell wing from increasing.
Abstract:
본 발명은 저궤도 재진입시 자세 안정성를 확보할 수 있는 우주왕복선(Spaceplane) 및 상기 우주왕복선의 저궤도 재진입시의 자세 제어 방법에 관한 것이다. 우주왕복선, 엘러본(elevon), 카나드(carnad), 받음각, 요(yaw), 피치(pitch), 롤(roll), 자유낙하
Abstract:
A bank control system for an airship is provided to control bank of the airship by varying the position of a gondola of the airship and changing the center of the gravity of the airship to achieve the optimum bank angle for more solar energy. In a bank control system for an airship, a rail(30) is horizontally installed inside a gasbag(11) or on the outer peripheral surface of lower part of the gas bag. A wheel generates the bank in the airship by horizontally moving a gondola(20) connected to the rail. A wheel driving part(40) is connected to the wheel and drives the wheel. And a wheel driving controller is electrically connected to the wheel driving part and controls the wheel driving part.
Abstract:
PURPOSE: An envelope structure is provided to prevent the sudden inclination of helium and the large change of a helium volume ratio by a simple structure. CONSTITUTION: A front partition(2) and a rear partition(3) divide the inside of a plane(1) to three parts. Separating films(7,8,9) are installed in the center of the front partition and the rear partition. A front helium envelope(4), a middle helium envelope(5) and a rear helium envelope(6) are divided in the upper part and a front air envelope(10), and a middle air envelope(11) and a rear air envelope(12) are divided by the separating films. Thereby, the sudden inclination of helium and the large change of a helium volume ratio are prevented.