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    피로 수명 예측을 위한 동응력 산출 알고리즘
    11.
    发明公开
    피로 수명 예측을 위한 동응력 산출 알고리즘 无效
    用于估计疲劳寿命的动态应力计算算法

    公开(公告)号：KR1020000055657A

    公开(公告)日：2000-09-15

    申请号：KR1019990004410

    申请日：1999-02-09

    Applicant: 현대자동차주식회사

    Inventor： 김효식

    IPC: G01M99/00

    Abstract: PURPOSE: A dynamic stress computation algorithm for estimating a fatigue life is provided to obtain a precise dynamic stress by using an equation of motion removed with an external force which causes stiffness motion. CONSTITUTION: A dynamic stress computation algorithm for estimating a fatigue life includes the steps of setting an equation of motion to be determined by mass matrix(M), stiffness matrix(K), nodal displacement(u) and external force matrix(f) by a limited element model(ST1), computing a stiffness displacement(uro) of a reference node to be applied to the equation of motion by performing excessive response reading by using a mode displacement method with stiffness mode(ST2), computing a deformation external force matrix(deltaf) removed with components causing stiffness motion by an applying external force from the stiffness displacement of the reference node and the equation of motion(ST3), computing a deformation displacement(deltau) from the deformation external force matrix(ST4), and computing a dynamic stress(sigma) from the deformation displacement(ST5).

    Abstract translation: 目的：提供一种用于估计疲劳寿命的动态应力计算算法，以通过使用引起刚度运动的外力去除的运动方程来获得精确的动态应力。 构成：用于估计疲劳寿命的动态应力计算算法包括以下步骤：通过质量矩阵（M），刚度矩阵（K），节点位移（u）和外力矩阵（f）来确定运动方程， 有限元素模型（ST1），通过使用具有刚度模式（ST2）的模式位移法，通过执行过度响应读数来计算要应用于运动方程的参考节点的刚度位移（uro），计算变形外力 通过从参考节点的刚度位移施加的外力和运动方程（ST3），从变形外力矩阵（ST4）计算变形位移（deltau），去除具有引起刚度运动的部件的矩阵（deltaf），以及 从变形位移计算动态应力（sigma）（ST5）。

    차량용 프로펠러 샤프트의 센터베어링
    17.
    发明授权
    차량용 프로펠러 샤프트의 센터베어링 失效
    用于车辆的传动轴的中心轴

    公开(公告)号：KR100568827B1

    公开(公告)日：2006-04-07

    申请号：KR1019990068533

    申请日：1999-12-31

    Applicant: 현대자동차주식회사

    Inventor： 김효식

    IPC: B60K17/24

    Abstract: 본 발명은 센터베어링 내에 비틀림 진동에 대응하여 변형됨으로써 진동을 억제하는 탄성체를 설치하여 프로펠러 샤프트에 발생하는 비틀림 진동을 감쇠시켜 차량의 정숙성을 향상시킬 수 있는 차량용 프로펠러 샤프트의 센터베어링을 제공하는데 있다.
    이러한, 본 발명의 차량용 프로펠러 샤프트의 센터베어링은 프로펠러 샤프트에 축 결합되어 진동에 대해 변형됨으로써 방진작용하는 탄성재질의 탄성부재와, 상기 탄성부재의 원둘레에 결합되어 내륜은 프로펠러 샤프트와 일체로 회전되고, 외륜은 고정되는 베어링과, 상기 베어링의 원둘레에 결합되어 일단이 차체프레임에 고정됨으로써 베어링의 위치를 고정하는 하우징브래킷으로 이루어진다.
    프로펠러 샤프트, 토션댐퍼, 탄성부재, 진동, 소음

    차량용 토셔널 댐퍼의 공진 주파수 가변장치 및 가변방법
    19.
    发明授权
    차량용 토셔널 댐퍼의 공진 주파수 가변장치 및 가변방법 失效
    차량용토셔널댐퍼의공진주파수가변장치및가변방변

    公开(公告)号：KR100448655B1

    公开(公告)日：2004-09-13

    申请号：KR1020020001723

    申请日：2002-01-11

    Applicant: 현대자동차주식회사

    Inventor： 김효식

    IPC: F16F15/10

    Abstract: PURPOSE: An apparatus and a method for varying the resonance frequency of a torsional damper for a vehicle are provided to reduce noise by absorbing the torsional vibration of a rotating shaft and to simplify the tuning work of a sample product. CONSTITUTION: A torsional damper(24) fixed on the outer face of a rotating shaft(22) absorbs the torsional vibration frequency of the rotating shaft. A sensing unit(26) senses the torsional vibration frequency of the rotating shaft. An electronic control unit(28) comparatively decides the torsional vibration frequency of the rotating shaft and the resonance frequency of the torsional damper by receiving the signal of the sensing unit. A valve unit(30) controlled by the electronic control unit supplies air to the torsional damper with the resonance frequency of the torsional damper higher than the torsional vibration frequency of the rotating shaft and discharges air of the torsional damper with the resonance frequency of the torsional damper lower than the torsional vibration frequency of the rotating shaft.

    Abstract translation: 目的：提供一种用于改变车辆用扭转阻尼器的共振频率的设备和方法，以通过吸收旋转轴的扭转振动来减少噪音并且简化样品产品的调谐工作。 组成：固定在旋转轴（22）外表面上的扭转阻尼器（24）吸收旋转轴的扭转振动频率。 感测单元（26）感测旋转轴的扭转振动频率。 电子控制单元（28）通过接收感测单元的信号来相对地确定旋转轴的扭转振动频率和扭转阻尼器的共振频率。 由电子控制单元控制的阀单元（30）以扭转阻尼器的共振频率高于旋转轴的扭转振动频率的方式向扭转阻尼器供应空气，并且以扭转共振频率排出扭转阻尼器的空气 阻尼器低于旋转轴的扭转振动频率。

    상용차의 벨트 장력 조절장치
    20.
    发明授权
    상용차의 벨트 장력 조절장치 失效
    상용차의벨트장력조절장치

    公开(公告)号：KR100427080B1

    公开(公告)日：2004-04-17

    申请号：KR1020020020333

    申请日：2002-04-15

    Applicant: 현대자동차주식회사

    Inventor： 김효식

    IPC: F16H7/08

    Abstract: PURPOSE: A belt tension control device of a commercial vehicle is provided to automatically control tension of a belt mounted to driving components. CONSTITUTION: A belt tension control device of a commercial vehicle comprises an air bag(23) interposed between an upper bracket(21) and a lower bracket(22); an idle pulley(30) rotatably installed to the upper side of the upper bracket; a roller for sensing a position(24) suspended to the lower side of the upper bracket as a disk forming an annular groove, into which a string(26) is fitted, to the outer periphery; the string; and a pneumatic solenoid valve(60) to supply air to the air bag according to a signal by a tension range sensor or a compression range sensor or to discharge air. The tension range sensor and the compression range sensor are formed to the roller for sensing a position to decide the tension state of a belt(40) by operating with an electromagnetic stick(27). One end of the string is fixed to a side of the lower bracket and the other end is fixed to a spring(32) fixed to the lower bracket, while winding around the outer periphery of the annular groove of the roller for sensing a position. The air pressure of the air bag is controlled according to the tension of the belt.

    Abstract translation: 目的：提供一种商用车辆的皮带张力控制装置，用于自动控制安装在驱动部件上的皮带的张力。 一种商用车辆的皮带张力控制装置，包括置于上托架（21）和下托架（22）之间的气囊（23）; 可旋转地安装到上部支架的上侧的惰轮（30） 用于感测悬挂在上支架下侧的位置（24）的辊子，该位置形成环形凹槽，在该外圆周中安装有绳26; 字符串; 以及根据张力范围传感器或压缩范围传感器的信号向气囊供应空气或排出空气的气动电磁阀（60）。 张力范围传感器和压缩范围传感器形成在辊上，用于通过利用电磁棒（27）的操作来感测确定带（40）的张紧状态的位置。 绳子的一端固定在下支架的一侧，另一端固定在固定在下支架上的弹簧（32）上，同时缠绕在用于检测位置的辊的环形槽的外周上。 根据皮带的张力控制气囊的气压。

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