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    Foam lined propshaft
    1.
    发明授权
    Foam lined propshaft 有权
    泡沫衬里的主轴

    公开(公告)号：US06752722B2

    公开(公告)日：2004-06-22

    申请号：US10097701

    申请日：2002-03-13

    申请人： Mary Ellen Armitage ,  Jeffrey N. Heaton ,  David P. Schankin ,  Donald J. Kurecka

    发明人： Mary Ellen Armitage ,  Jeffrey N. Heaton ,  David P. Schankin ,  Donald J. Kurecka

    IPC分类号： F16C302

    CPC分类号： B60K17/22 ,  F16C3/023 ,  F16C2326/06 ,  F16F15/10 ,  Y10T29/49229 ,  Y10T29/49334 ,  Y10T29/49774 ,  Y10T464/40 ,  Y10T464/50

    摘要： A shaft structure and at least two insert members. The shaft structure has a longitudinally extending cavity and is configured to vibrate in response to the receipt of an input of a predetermined frequency such that at least two second bending mode anti-nodes are generated in spaced relation to one another along the longitudinal axis of the shaft structure. The insert members are disposed within the longitudinally extending cavity and engage an inner wall of the shaft structure. Each of the insert members is located at a position that approximately corresponds to an associated one of the anti-nodes and has a density that is tailored to an anticipated displacement of the associated anti-node. A method for attenuating noise transmission from a vehicle driveline is also disclosed.

    摘要翻译： 轴结构和至少两个插入构件。 轴结构具有纵向延伸的空腔，并且构造成响应于接收到预定频率的输入而振动，使得至少两个第二弯曲模式反节点沿彼此的纵向轴线相互间隔开地产生 轴结构。 插入构件设置在纵向延伸的空腔内并与轴结构的内壁接合。 每个插入构件位于大致对应于相关联的一个反节点的位置，并且具有针对相关联的反节点的预期位移而定制的密度。 还公开了一种用于衰减来自车辆传动系的噪声传播的方法。

    Active vibration cancellation of gear mesh vibration
    2.
    发明授权
    Active vibration cancellation of gear mesh vibration 有权
    齿轮啮合振动主动减震

    公开(公告)号：US06865466B2

    公开(公告)日：2005-03-08

    申请号：US09796205

    申请日：2001-02-28

    申请人： Michael A. Voight ,  Daniel V. Sagady ,  David P. Schankin ,  Jeffrey N. Heaton ,  Rachel Dudley ,  Matt Geissinger

    发明人： Michael A. Voight ,  Daniel V. Sagady ,  David P. Schankin ,  Jeffrey N. Heaton ,  Rachel Dudley ,  Matt Geissinger

    IPC分类号： F16F15/02 ,  G06F19/00

    CPC分类号： F16F15/02

    摘要： A drivetrain component assembly comprising a drivetrain structure, means for generating a reference signal indicative of a frequency with which the drivetrain structure vibrates during operation of the drivetrain structure, at least one actuator coupled to the drivetrain structure, at least one sensor operable for monitoring vibrations transmitted from the drivetrain structure and producing a sensor signal in response thereto and a controller coupled to the at least one actuator and the at least one sensor. The controller receives the sensor and reference signals and generates an actuator signal in response thereto. The at least one actuator receives the actuator signal and generates a canceling vibration in the drivetrain structure in response thereto. The canceling vibration has a predetermined frequency and amplitude to substantially cancel-out vibrations in a predetermined bandwidth that are generated during the operation of the drivetrain structure. A method for analyzing the effect of a drivetrain component on a level of noise, vibration and harshness transmitted to a vehicle passenger compartment is also provided.

    摘要翻译： 一种包括传动系结构的传动系组件组件，用于产生参考信号的装置，所述参考信号指示在所述传动系结构的操作期间所述传动系结构振动的频率，耦合到所述传动系结构的至少一个致动器，用于监测振动的至少一个传感器 从传动系结构传递并响应于此产生传感器信号，以及耦合到至少一个致动器和至少一个传感器的控制器。 控制器接收传感器和参考信号，并响应于此产生致动器信号。 所述至少一个致动器接收致动器信号，并响应于此而在传动系结构中产生抵消振动。 消除振动具有预定的频率和振幅，从而基本抵消了在传动系结构的操作期间产生的预定带宽中的振动。 还提供了一种用于分析传动系组件对传输到车辆乘客室的噪声，振动和粗糙度的影响的方法。