Abstract:
A vehicle with wings and a mechanism for causing a flapping motion in wings. Each wing structure comprises a wing and a wing spar coupled to a follower via a resilient member. Each wing carrier is pivotally connected to the body and is configured to restrain lateral movement and permit rotation of the wing spar about a feathering axis. A biasing member provides torsional bias to each wing spar. A linkage, driven by an actuator, transmits cyclic motion that rotates the wing carrier about a flapping axis, which moves the follower along a follower path. A guide attached to the vehicle body lies in the path of each follower, and the follower and guide are shaped such that each wing spar has a first rotational position about its axis along a first portion of the follower path and a second rotational position along a second portion of the follower path.
Abstract:
A compressed air engine and a flying object using the engine are disclosed. The flying object includes the following elements. That is, the compressed air engine includes: a top member 11 provided with an air inlet 16; an upper cylinder 12; a lower cylinder 13; a bottom member 14; an air pipe, for passing of a compressed air; a shuttle 20 for performing up/down movements within a cylinder formed by the upper and lower cylinders; and a pair of pistons 21a and 21b over and under the shuttle respectively. The pair of the wings are symmetrically and pivotally assembled to the shuttle and the lower cylinder through securing shafts so as to perform up/down movements in accordance with the up/down movements of the shuttle. A compressed air container 2 is assembled to the bottom of the bottom member, for storing the compressed air.
Abstract:
La présente invention se rapporte à un dispositif motorisé (100) apte à se mouvoir dans un fluide, tel qu'un drone, et comprenant un ou plusieurs systèmes locomoteurs (101), avec chacun au moins un ensemble d'entraînement relié à au moins un organe de locomotion (102) et un moteur (104) commandé par une tension électrique telle que : • - la fréquence d'un mouvement alternatif de l'ensemble d'entraînement corresponde à la fréquence de résonance de l'organe de locomotion relié à une partie non mobile par au moins un moyen élastique précontraint (111, 112), et • - l'amplitude instantanée du mouvement alternatif de l'ensemble d'entraînement soit ajustée pour commander la position moyenne et l'amplitude maximale du mouvement alternatif de l'organe de locomotion, l'ensemble d'entraînement comprenant au moins un réducteur (106 et 108) de vitesse de rotation du moteur, pour, lorsque le moteur fonctionne à sa puissance mécanique maximale, la vitesse de rotation transmise à l'au moins un organe de locomotion soit réduite pour correspondre à cette fréquence de résonance.
Abstract:
Drone, method and systems for displaying messages and/or images by using a group comprising one or more remotely controlled airborne drones provided with display means and controlled such that said messages and/or images are created and made visual by the display means of said group of airborne drones. The display means are controlled such that said messages and/or images are 2D or 3D messages and/or images respectively. The display means may compnse LED's, OLED's or LCD based means or DLP and/or laser projection means. The display of messages and/or images can be remotely controlled using a social gateway for airborne visualization, enabling the integration of content from end-user and marketmg clients based on the drones geographic position and social media audience profile.
Abstract:
A device comprising a thin film solar cell with an integrated flexible antenna, such as a meander line antenna, is disclosed. In an embodiment, the device comprises a substrate and an array of solar cells disposed on the substrate, wherein the array of solar cells are interconnected by metal conductors that carry DC power from the solar cells and which form at least part of the flexible antenna. In their capacity as an antenna, the metal conductors operate cooperatively with the solar cells to radiate an RF signal, receive an RF signal, or both radiate and receive an RF signal. The device optionally comprises a choke disposed on the substrate and electrically coupled to the array of solar cells, wherein the choke operates to impede conduction of the RF signal. A method of making the disclosed device is also disclosed.
Abstract:
The invention relates to a wing for generating lift and comprises a trailing edge, a leading edge, an inner end, an outer end, a top surface and a bottom surface. The wing comprises an aerofoil with a chord line and a span direction. The leading edge comprises a kink between the inner end and the outer end. The leading edge comprises a forward sweep part between the inner end and the kink extending towards the kink presenting an angle relative to the span direction. The leading edge comprises a backward sweep part between the kink and the outer end extending from the kink presenting an angle relative to the span direction. The top surface comprises a flow control means for controlling the lift at least partly located between a leading edge part between the kink and the outer end and located between the leading edge and the trailing edge.
Abstract:
Heavier-than-air, aircraft (103, 2150) having flapping wings (101, 102), e.g., ornithopters, where angular orientation control is effected by variable differential sweep angles of deflection of the flappable wings in the course of sweep angles of travel and/or the control of variable wing membrane tension.
Abstract:
본 고안은 날개짓 비행체 구동 메커니즘에 관한 것으로서, 특히 모터 동력을 비행체가 비행할 수 있는 적정한 날개속도와 힘을 가질 수 있도록 전달할 수 있는 것을 특징으로 하는 날개짓 비행체 구동 메커니즘에 관한 것이다. 이와 같은 본 고안에 따른 날개짓 비행체는; 모터(11), 배터리(12), 전자변속기(13) 등으로 구성된 동력부(10): 상기 동력부와 동력전달부(20), 서보(30) 등이 배설된 동체부(40); 동력전달부에 연결되어 유연한 재료로 만들어진 날개부(50)와 날개구조부(60); 그리고 비행방향을 조절할 수 있는 수직꼬리 날개부(70)와 수평꼬리 날개부(80); 꼬리날개를 조종할 수 있도록 서보(30)와 연결된 와이어(90); 소형 비디오카메라, 무선통신장치 등이 배설될 수 있는 기타 장치부(100) 등으로 구성된 것을 특징으로 하여 날개짓 비행을 가능하게 한다.
Abstract:
PURPOSE: Provided is a compressed air engine wherein a compressed air vessel and a pair of wheels are assembled easily to assemble a head part in a wanted form so that it makes ease of forming a flying body. CONSTITUTION: The compressed air engine comprises the parts of: a top member(11) which includes an air inlet; an upper cylinder(12) which is assembled into the top member; a lower cylinder(13) which is assembled into the upper cylinder; a bottom member(14) which is assembled into the lower cylinder; an air pipe which is placed at the gap between the top member and the bottom member to pass compressed air; a shuttle(20) which is moved vertically inside the cylinder to move a pair of wheels vertically; and a pair of pistons(21a,21b) which reciprocate around the upper and the lower side of the shuttle.
Abstract:
A system (100) for determination of flight performance of the bioinspired flapping-wing aerial vehicle (101) in simulated space conditions discloses the aerial vehicle (101) installed in a thermo-vacuum chamber (103) that maintains vacuum and temperature for aerial vehicle (101) to simulate climatic conditions in space, where the aerial vehicle (101) is evaluated by the force transducer (104) and data acquisition system (105) acquires the data from force transducer (104). The flapping motion of the wing (101b) of the aerial vehicle (101) in space conditions increases the velocity of aerial vehicle (101), where dynamic wing twisting maintains the wing (101b) at a specific angle of attack to generate lift force and wing deformation occurs during which the passive pitch angle produces high lift forces, facilitating stable flight in simulated space conditions.