Abstract:
PURPOSE: A beam moving device is provided to move a supporting beam to a predetermined position of a column structure by installing a fixing member on the supporting beam. CONSTITUTION: A pair of transverse moving supporting beams(5) is installed in a transverse direction of a column(6) having an H-beam shape. A pair of longitudinal moving supporting beams(7) are installed at an inner portion of the transverse moving supporting beams(5). An assembling hole is formed at front ends of the transverse moving supporting beams(5) and the longitudinal moving supporting beams(7) so that the longitudinal moving supporting beams(7) is coupled to the transverse moving supporting beams(5) by using two clamp bodies(1,2). The clamp bodies(1,2) have an L-shape and formed at a front end thereof with a clamp bit. Elongated holes are formed at an inner portion of two clamp bodies(1,2).
Abstract:
PURPOSE: A swivel device for a hydraulic actuator is provided to apply an angular load to an angular hydraulic actuator by using a two-way rotating link including first and second pins, which are axially rotated. CONSTITUTION: A lower rotating member(3) is coupled to an upper portion of a hydraulic actuator(8). The center portion of the lower rotating member(3) is protruded such that a middle rotating member(1) is connected to the lower rotating member(3) through a lower rotating pin(4'). An upper rotating pin(4) is installed at an upper portion of the lower rotating pin(4') in such a manner that the upper rotating pin(4) is connected to an upper rotating member(2). The upper rotating pin(4) and the lower rotating pin(4') are positioned between the upper and lower rotating members(2,3). Two stud bolts(6) are installed at both sides of the upper rotating member(2).
Abstract:
PURPOSE: A position posture control apparatus is provided to reduce manufacturing cost and obtain accurate control characteristics by using hydraulic/pneumatic components. CONSTITUTION: A position posture control apparatus comprises a hydraulic operator(1) which restricts six degree-of-freedom for restricting rigid motion of a testing object(9). The load applied to the testing object is transmitted to a hydraulic pressure portion of the hydraulic operator attached to the testing object, so as to generate a pressure. The pressure corresponding to the volume of load which is pre-calculated with respect to the pressure generated at the hydraulic operator, is absorbed, through a pipeline, to a first pressure regulator(5) of a pressure regulator(2) arranged within a control unit(10). The pressure is absorbed linearly in accordance with the compression ability of an air pressure controller(4) for controlling air pressure of a pressure accumulator(3), when the pressure is greater than the calculated load. Thus, the hydraulic operator having six degree-of-freedom performs simulating motion. When the linear displacement of the hydraulic operator occurs, a single direction flow unit(6) operates so as to permit position change of the hydraulic operator. Thus, the control unit of different five systems operates, to thereby restrict the rigid motion of the testing object.
Abstract:
섬유강화 복합재 구조물은 외부로부터 충격을 받으면, 구조물의 강도를 크게 저하시키는 심각한 내부 손상이 유발될 수 있으나, 외견상으로 충격의 흔적을 감지하기 어렵다. 본 발명에서는 아래로부터 섬유강화 복합재료로 구성되는 기재층, 광발광 입자를 함유하는 광발광층, 상기 광발광층의 상부에 위치하는 불투명한 광차단도장층의 순서대로 구성되는 광발광 입자를 함유하는 섬유강화 복합재 구조물 및 이의 제조방법 그리고 섬유강화 복합재 구조물에 가해진 외부충격에 의한 내부 손상을 효율적으로 감지하는 감지방법을 제공한다.
Abstract:
A fiber-reinforced composite structure can have serious internal damage capable of reducing the strength of the structure when receives a shock from the outside, but seemingly signs of the shock is cannot be detected. The present invention provides a fiber-reinforced composite structure including photoluminescent particles, a manufacturing method thereof, and a method for efficiently detecting internal damage due to external shocks applied to a fiber-reinforced composite structure, wherein the fiber-reinforced composite structure comprises a base layer made of a fiber-reinforced composite material, a photoluminescent layer containing photoluminescent particles, and an opaque light blocking coating layer placed on the top of the photoluminescent layer in order from the bottom. [Reference numerals] (AA) Outside; (BB) Inside
Abstract:
본 발명은 연료셀의 파손 여부를 감시할 수 있도록 적층소재 사이에 유리섬유가 포설된 연료셀 및 상기 연료셀의 파손 여부를 실시간으로 감시할 수 있는 연료셀 감시시스템을 개시(introduce)한다. 상기 연료셀 감시시스템은, 연료차폐층, 내부고무스컷, 자기밀폐층 및 외부고무스컷의 순서로 적층되며, 상기 연료차폐층과 상기 외부고무스컷 사이에 포설된 유리섬유 및 상기 유리섬유의 일 단자에 설치된 산란판을 구비하는 연료셀, 상기 유리섬유의 다른 일 단자로 일정한 파장의 빛을 입사하는 광원 및 상기 유리섬유의 다른 일 단자로부터 방출되는 빛을 수신하는 수광장치를 구비한다.
Abstract:
PURPOSE: A cracking monitoring system, a cracking monitoring method and a computer legible media recording a cracking monitoring program are provided to monitor the location of crack in real time by calculating the time delay using the noise due to the cracks. CONSTITUTION: A cracking monitoring system comprises a plurality of acceleration sensors(110), a plurality of noise detecting parts(120), a cracking location tracker(140), and a display unit(150). The acceleration sensor is installed in a test body. The acceleration sensor senses the acceleration. The noise detecting part is located near the test body and detects the noise. The display unit on a real time basis indicates the traced crack position.
Abstract:
본 발명은 항공기 전기체 구조시험을 하는데 있어서 많이 발생하는 측면 하중용 유압작동기를 설치하기 위한 지지빔을 이동 및 고정하는 장치에 관한 것이다. 종래에는 보울트를 이용한 고정조인트 방식으로 전기체 구조시험의 경우와 같이 여러 번 움직여야 할 때는 많은 제약을 주는 것이었다. 따라서 본 발명은 지지빔을 원하는 위치로 이동을 용이하게 하고 또한 기둥에 구멍 없이 고정할 수 있으므로 위치를 정확하게 잡을 수 있게 하여 시험의 정확도를 올리고 여러 가지의 지지빔을 1개의 지지빔으로 사용하게 함으로써 전체 시험치구 제작단가도 낮추었다.