The present invention provides a shock absorbing chair for a vessel. The shock absorbing chair for a vessel is to prevent shock and reduce vibration. The shock absorbing chair for a vessel includes: a seat unit spaced at predetermined intervals from the bottom of a hull; an ultrasonic sensor installed in the lower part of the seat unit and measuring intervals from the bottom of the hull; at least one or more shock absorbing springs installed between the seat unit and the bottom of the hull; a magnetorheological fluid damper unit installed in a line with the shock absorbing spring and including a housing unit and a piston unit, wherein the solidified magnetorheological fluid is injected into the housing as viscosity increases when a current is applied to control the area of an orifice pipe controlling the damping force; an acceleration sensor installed on the outside of the magnetorheological fluid damper unit and measuring acceleration when the magnetorheological fluid damper unit and the shock absorbing spring operate; and a calculation control unit calculating a first speed value by integration of an acceleration value measured by the acceleration sensor and calculating the relative speed value by differentiation of a displacement value measured by an ultrasonic sensor, wherein the calculation control unit also controls the electric current applied to a coil by comparing and determining each measurement value and calculation value with each reference value. The piston unit of the magnetorheological fluid damper unit is installed in the housing unit, and the coil is wound on the inside of the piston unit so that the electric current can be selectively applied to the magnetorheological fluid.

    진동이 저감되며 충격이 방지되도록, 본 발명은 선체의 바닥면과 기설정된 간격으로 이격 배치되는 시트부; 상기 시트부의 하부에 구비되며, 상기 선체의 바닥면과의 이격 거리를 측정하는 초음파센서; 상기 시트부 및 상기 선체의 바닥면 사이에 적어도 하나 이상 구비되는 완충스프링; 상기 완충스프링과 병렬로 배치되되댐핑감쇠력을 조절하는 오리피스관의 통로면적이 조절되도록 전류 인가시 점성이 증가됨에 따라 고체화되는 자기유변유체가 내부에 주입된 하우징부와, 상기 하우징부 내주에 배치되되상기 자기유변유체에 선택적으로 전류가 인가되도록 내부에 코일이 권선된 피스톤부를 포함하는 자기유변유체 댐퍼부; 상기 자기유변유체 댐퍼부의 외측에 구비되며, 상기 완충스프링 및 상기 자기유변유체 댐퍼부의 동작시 가속도를 측정하는 가속도센서; 및 상기 가속도센서로부터 측정된 가속도값의 적분을 통해 제1속도값을 산출하고, 상기 초음파센서로부터 측정된 변위값의 미분을 통해 상대속도값을 산출하며, 각 측정값 및 산출값을 각 기준값과 비교 판단하여 상기 코일에 인가되는 전류를 제어하는 연산제어부를 포함하는 선박용 완충의자를 제공한다.


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    Title :

    shock absorbing seat for ship


    Additional title:

    선박용 완충의자


    Contributors:
    KIM SUNG HA (author) / KIM CHUL HAN (author)

    Publication date :

    2019-11-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / A47C Stühle , CHAIRS / F16F SPRINGS , Federn



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