Abstract:
본 발명은 격자 강화 복합재 구조를 이용한 우주용 다기능 구조체에 관한 것으로, 더욱 상세히는 첨단 우주용 구조체 기술로서, 기존의 위성 구조체가 하중지지 및 내부장비 보호에 국한된 기능만을 지닌데 비해, 구조기능, 전자기능, 열전달기능, 방사차폐, 전자기간섭차폐 기능을 갖추어 다양한 기능을 제공할 뿐만 아니라 무게절감과 공간활용도를 크게 향상한 격자 강화 복합재 다기능 구조체에 관한 것으로, 복수의 격자가 결합되어 형성된 격자 프레임과, 상기 격자 프레임의 일면에 접합되는 면재와, 상기 격자 프레임과 상기 면재에 의해 형성된 격자공간에 구비되어 전자기능을 수행하는 하나 이상의 전자 PCB와, 상기 전자 PCB에 구비되어 외부와의 전력분배 및 데이터전달을 위한 커넥터 및 상기 전자 PCB 간의 전기적 데이터 전달 및 전력분배를 위한 전기배선을 포함하여 구성되는 다기능 구조체를 제공한다.
Abstract:
PURPOSE: A hinge device for a satellite using a shape memory alloy and a satellite with the same are provided to minimize the deployed impact of the hinge device by removing the tradeoff between a deployment impact and rigidity after deployment. CONSTITUTION: A hinge device(30) for a satellite using a shape memory alloy comprises a first bracket(310), a second bracket(320), a tape spring hinge part(330), and a shape memory alloy cylinder fixing device(340). The first bracket is attached to one end of a satellite body by a coupling member or is attached to one end of panels if a solar cell panel is made of the multiple panels. The second bracket is attached to one end of the solar cell panel by a coupling member or is attached to one end of a panel adjacent to one end of a panel where the first bracket is attached if the solar cell panel is made of the multiple panels. The tape spring hinge part is arranged between the first and second brackets to deploy the second bracket against the first bracket. The tape spring hinge part elastically connects the first and second brackets and primarily fixes the first and second brackets after the deployment. After a shape memory alloy cylinder is deployed between the first and second brackets, the shape memory alloy cylinder fixing device secondarily fixes the first and second brackets.
Abstract:
PURPOSE: A mechanical ground support device is provided to transport, rotate and move an artificial satellite, to offer convenience and efficiency by performing various works using one structure, and to be structurally stable and simple against the load conditions added differently to an artificial satellite. CONSTITUTION: A mechanical ground support device comprises a movement support unit(110) attached to one side of an artificial satellite(10) and supporting the artificial satellite when moving the artificial satellite using a rope, a transportation support unit(120) supporting the movement support unit and functioning as a base when transporting the artificial satellite fixed to the movement support unit, and a rotation support unit(130) supported to the transportation support unit and attached to the other side of the artificial satellite to rotate the artificial satellite.
Abstract:
PURPOSE: A multi-functional structure for space using a lattice strengthened composite structure is provided to achieve weight reduction effect by removing the need of a separate housing for mounting an electronic PCB. CONSTITUTION: A multi-functional structure for space using a lattice strengthened composite structure comprises a lattice frame(10), a surface material(20), an electronic PCB(30), a connector(40), and electric wiring(50). The lattice frame is formed of a plurality of lattices(11). The surface material is attached to a side of the lattice frame. The electronic PCB is installed in a lattice space(21) formed by the lattice frame and the surface material and implements electronic functions. The connector is installed in the electronic PCB for power distribution and data communication with outside. The electric wiring is provided for electric data communication and power distribution in the electronic PCB.
Abstract:
PURPOSE: A bushing and a bushing assembly including the same are provided to improve the adhesion of the bushing to a structure by a knurled exterior surface of the bushing. CONSTITUTION: A bushing(30) guiding the assembly and mount of different structures comprises a bushing body(31) with a coupling hole(32), and a knurled part(34) formed on in the exterior surface to guide uniform spread of an adhesive for attachment of the bushing to the structures. The pitch interval of the knurled part is 1.0 to 1.4mm.
Abstract:
PURPOSE: A hinge apparatus and a satellite having the same are provided to ensure development reliability in a simple structure wherein hinge brackets supporting the satellite body and a solar panel are connected with elastic members. CONSTITUTION: A first hinge bracket(40) is installed in a first unit. A second hinge bracket(50) is installed in a second unit. A connector(60) interlinks the first and second hinge brackets. The connector creates a restoring force in a folded state where the first and second units are faced each other. A coil spring is provided in the connector to gradually reduce the restoring force in the same direction as the second unit is opened with respect to the first unit.
Abstract:
The present invention comprises: a main frame (100); a movable body (200) which is installed on the main frame (100) in order to move vertically and horizontally; a first fixating body (300) which is combined with the movable body (200), and detachably fixates one end of a tape spring (10); a second fixating body (400) which is placed at a fixed interval from the first fixating body (300) in the horizontal direction, and detachably fixates the other end of the tape spring (10) to a facing surface facing the first fixating body (300); a rotary body (500) which is combined with the second fixating body (400); and a measuring unit (600) which measures a hinge moment generated from the tape spring (10) by connecting the rotary body (500) with the main frame (100) in order to rotate the rotary body (500) and the second fixating body (400) through interlocking.
Abstract:
PURPOSE: A low-shock and non-explosive release device using a shape memory alloy cylinder and a shape memory alloy wire, an installation method, a release system, a preparation method, a release method, and a re-assembling method thereof are provided to prevent pollution by reducing shock using a non-explosive method. CONSTITUTION: A low-shock and non-explosive release device comprises a shape memory alloy cylinder and a shape memory alloy wire(520). The shape memory alloy cylinder is composed of a shape memory alloy extended in an axial direction. The shape memory alloy wire is installed on a wire guide, and the ends of the shape memory alloy wire are fixed to outer holes. When the shape memory alloy wire is contracted, the shape memory alloy wire moves a trigger block(400) upward, and a center bolt(600) is stretched.
Abstract:
높은 전개강성을 가지며 열적으로 우수한 태양전지판 전개장치 및 이를 포함하는 인공위성이 개시된다. 개시된 본 발명에 의한 인공위성은, 인공위성 본체, 인공위성 본체와 연결되어, 태양광을 받아 인공위성 본체의 전력을 발생시키는 태양전지판, 그리고, 태양전지판을 인공위성 본체에 대해 전개시키는 전개장치를 포함한다. 여기서, 전개장치는, 인공위성 본체와 태양전지판을 상호 연결시키는 힌지유닛, 상호 대응되는 형상의 제 1 및 제 2 힌지브라켓을 가지고 인공위성 본체와 연결되는 제 1 전개유닛, 상호 대응되는 형상의 제 3 및 제 4 힌지브라켓을 가지고 태양전지판에 연결되는 제 2 전개유닛, 그리고, 제 1 및 제 2 전개유닛을 상호 접힘/전개 가능하게 연결하는 연결유닛을 포함한다. 이러한 구성에 의하면, 태양전지판이 인공위성 본체로부터 전개될 때 고강성을 가짐으로써, 인공위성의 빠른 안정화를 도모할 수 있다. 인공위성, 태양전지, 전개, 접힘, 펼쳐짐, 강성.
Abstract:
간단한 구조로 전개 신뢰성을 확보할 수 있는 힌지장치 및 이를 포함하는 인공위성이 개시된다. 개시된 본 발명에 의한 인공위성은, 인공위성 본체, 인공위성 본체와 연결되어, 태양광을 받아 인공위성 본체의 전력을 발생시키는 태양전지판, 그리고, 인공위성 본체와 태양전지판을 연결하는 힌지장치를 포함하며, 힌지장치는, 인공위성 본체에 설치되는 제 1 힌지브라켓, 태양전지판에 설치되는 제 2 힌지브라켓, 그리고, 제 1 및 제 2 힌지브라켓을 연결시키며, 인공위성 본체와 태양전지판이 상호 마주하는 접힘상태에서 복원력을 발생시키는 연결수단을 포함한다. 이에 의하면, 간단한 구조로 안정적인 전개를 구현할 수 있게 된다. 인공위성, 전개, 힌지, 연결, 스프링, 강성, 토크, 복원력.