Sound wave control device
    11.
    发明授权
    Sound wave control device 失效
    声波控制装置

    公开(公告)号:US4726444A

    公开(公告)日:1988-02-23

    申请号:US904852

    申请日:1986-09-08

    IPC分类号: G10K11/30 H04R1/34 G10K11/00

    CPC分类号: G10K11/30 H04R1/345

    摘要: Disclosed herein is a sound wave control device which is shaped in a lens form or a prism form from an acoustically rigid porous material, wherein numerous paths having different path lengths are provided and the apparent medium density is varied. This second wave control device is used to improve the sound quality and the directivity of the sound waves from a speaker and the directional control of noises.

    摘要翻译: 本文公开了一种声波控制装置,其从声刚性多孔材料成型为透镜形式或棱镜形式,其中提供具有不同路径长度的多个路径,并且表观中等密度变化。 该第二波控制装置用于改善来自扬声器的声波的声音质量和方向性以及噪声的方向控制。

    Engine noise control device for use in automobiles or the like
    12.
    发明授权
    Engine noise control device for use in automobiles or the like 失效
    用于汽车等的发动机噪声控制装置

    公开(公告)号:US4753318A

    公开(公告)日:1988-06-28

    申请号:US660995

    申请日:1984-10-15

    摘要: Disclosed herein is an engine noise control device for use in automobiles or the like comprising a noise control member which is attached to an opening of an engine room of an automobile or the like. The noise control member has a plurality of hollow conduit passages penetrating from one of surfaces to the other surface thereof. The hollow conduit passages are so arranged that the length of the conduit passages becomes shorter from the central portion to the peripheral portion of the noise control member. Thereby, a noise-propagating direction is changed by controlling the noise to reduce the energy of sounds radiated and/or diffracted to the outside.

    摘要翻译: 这里公开了一种用于汽车等的发动机噪声控制装置,其包括附接到汽车等的发动机室的开口的噪声控制部件。 噪声控制构件具有从表面中的一个表面到另一个表面穿透的多个中空导管通道。 中空导管通道被布置成使得导管通道的长度从噪声控制构件的中心部分到周边部分变短。 因此,通过控制噪声来改变噪声传播方向,以减少辐射和/或衍射到外部的声音的能量。

    Elastic wheel
    14.
    发明授权
    Elastic wheel 失效
    弹性轮

    公开(公告)号:US06981535B1

    公开(公告)日:2006-01-03

    申请号:US10048651

    申请日:2000-08-01

    IPC分类号: B60B9/10

    CPC分类号: B60B9/10 B60B9/12

    摘要: An elastic wheel includes a disk (1) having a base rim (2), a rim (3) for supporting a tire (10), and an annular elastic rubber body (4) arranged between the outer peripheral surface of the base rim (2) and the inner peripheral surface of the rim (3). A gap is formed between the elastic rubber body (4) and the outer peripheral surface of the base rim (2) or the inner peripheral surface of the rim (3). The elastic rubber body (4) with the gap has a spring constant that shifts from a smaller value to a larger value as the input load increases, so that it absorbs vibration under small input conditions while being prevented from undergoing substantial deformation under large input conditions. The elastic wheel ensures riding comfortablesess performance and provides improved vibrationproof performance and soundproof performance, regardless of whether the input load is small or large, without sacrificing durability and safety. In terms of soundproof performance, provision of the gap is particularly effective in suppressing high-frequency noise of 100 Hz or higher.

    摘要翻译: 弹性轮包括具有基座(2)的盘(1),用于支撑轮胎(10)的轮辋(3)和布置在所述基座的外周表面之间的环形弹性橡胶本体(4) 2)和轮辋(3)的内周面。 在弹性橡胶体(4)与基部边缘(2)的外周面或者边缘(3)的内周面之间形成间隙。 具有间隙的弹性橡胶体(4)的弹簧常数随着输入载荷的增加而从较小的值向较大的值移动,使得其在小的输入条件下吸收振动,同时防止在大的输入条件下发生大的变形 。 弹性轮确保乘坐舒适的性能,并且不管输入负载是小还是大,并且不牺牲耐久性和安全性,提供了改进的防振性能和隔音性能。 在隔音性能方面,间隙的提供在抑制100Hz以上的高频噪声方面特别有效。

    Electronic noise attenuation method and apparatus for use in effecting
such method
    15.
    发明授权
    Electronic noise attenuation method and apparatus for use in effecting such method 失效
    用于实现这种方法的电子噪声衰减方法和装置

    公开(公告)号:US5295192A

    公开(公告)日:1994-03-15

    申请号:US957068

    申请日:1992-10-06

    摘要: A method for electrically attenuating a noise in an area for a sound wave to be propagatable in a three dimensional direction by making up a drive signal from the information on the noise and previously given filter coefficients by use of an adaptive digital filter and then generating an additional sound wave in accordance with the drive signal for cancellation of the noise. In the electric noise attenuation method, there are provided in a given region for noise attenuation, first and second error sensor groups for detecting an interference sound wave produced between the noise and additional sound wave, at a sampling time, a filter coefficient is calculated based on the information relating to the first error sensor group, at the next sampling time, another filter coefficient is calculated based on the information relating to the second error sensor group, and these operations are repeatedly executed sequentially for each error sensor to thereby update the filter coefficient of the adaptive digital filter.

    摘要翻译: 一种用于通过使用自适应数字滤波器通过从关于噪声的信息和先前给定的滤波器系数组成驱动信号来电声衰减在三维方向上可传播的声波区域中的噪声的方法, 附加声波根据驱动信号消除噪声。 在电噪声衰减方法中,在给定的噪声衰减区域中设置用于检测在噪声和附加声波之间产生的干扰声波的第一和第二误差传感器组,在采样时间基础上计算滤波器系数 关于与第一误差传感器组有关的信息,在下一个采样时间,基于与第二误差传感器组相关的信息计算另一个滤波器系数,并且对于每个误差传感器重复执行这些操作,从而更新滤波器 自适应数字滤波器的系数。

    Noise reducing apparatus
    16.
    发明授权
    Noise reducing apparatus 失效
    降噪装置

    公开(公告)号:US4858720A

    公开(公告)日:1989-08-22

    申请号:US120437

    申请日:1987-11-13

    IPC分类号: G10K11/30

    CPC分类号: G10K11/30

    摘要: A noise reducing apparatus is disclosed, comprising a lens-type hollow body consisting of a plurality of inclined hollow tubular passages. The lens-type hollow body has a plane incident surface and a curved emission surface and the length L.sub.2 of the hollow tubular passage is optimized in accordance with relevant dimensional parameters of setting of the lens-type hollow body in a sound field, to reduce noise from a spot sound source efficiently.

    摘要翻译: 公开了一种降噪装置,包括由多个倾斜的中空管状通道组成的透镜型中空体。 透镜型中空体具有平面入射面和弯曲发射面,并且根据声场中的透镜型中空体的相关尺寸参数优化中空管状通道的长度L2,以减少噪声 从一个点音源有效地。

    Elastic wheel
    18.
    发明授权
    Elastic wheel 失效
    弹性轮

    公开(公告)号:US06732775B1

    公开(公告)日:2004-05-11

    申请号:US10048648

    申请日:2002-02-04

    IPC分类号: B60B910

    CPC分类号: B60B9/10 B60B9/12

    摘要: An elastic wheel having a disk 1 equipped with a base rim 2 and a rim 3 for supporting a tire includes a pair of guides 4 fixed annularly on the inner peripheral surface of the rim 3 and a pair of wall portions 5 fixed annularly on the both side areas in the axial direction of the wheel on the outer peripheral surface of the base rim 2, where rubber elastic bodies 6 are fitted annularly between the side surfaces of the guides 4 and the side surfaces of the wall portions, respectively. The elastic bodies 6 being installed are able to absorb vibrations by their shearing deformations, so that especially the riding comfortableness performance, the vibrationproof performance, and the soundproof performance can be improved against the small input load. Regarding the soundproof performance, furthermore, it is extremely effective on a high frequency area of 100 Hz or higher.

    摘要翻译: 具有装备有基座边缘2和用于支撑轮胎的轮辋3的盘1的弹性轮包括环形地固定在轮辋3的内周面上的一对导向件4和环形地固定在两者上的一对壁部5 分别在引导件4的侧面和壁部的侧面之间环状地嵌合有橡胶弹性体6的轮缘的轴向方向的侧面区域。 安装的弹性体6能够通过其剪切变形来吸收振动,从而能够相对于小的输入负荷特别提高乘坐舒适性,防振性能和隔音性能。 此外,关于隔音性能,在100Hz以上的高频区域是非常有效的。

    Vibration free container for transportation
    19.
    发明授权
    Vibration free container for transportation 失效
    无振动的运输容器

    公开(公告)号:US4877136A

    公开(公告)日:1989-10-31

    申请号:US182706

    申请日:1988-04-18

    IPC分类号: B65D81/07

    CPC分类号: B65D81/07

    摘要: A vibration free container for transportation comprises vibration isolating device which are arranged under the container and comprises a lower layer and an upper layer. The lower layer consists of at least two long laminated rubber bodies in the form of a parallelepiped extending in parallel with each other and upper layer consists of a plurality of column-shaped vibration isolators fixed between a bottom plate of the container and upper surfaces of the lamianted rubber bodies. Each of the laminated rubber bodies comprises rubber layers and metal plates alternately laminated. In another aspect the vibration free container comprises an outer casing and an inner casing received in the outer casing, and the vibration insulating device is interposed between the outer and inner casing to support the inner casing relative to the outer casing.

    摘要翻译: 用于运输的无振动容器包括布置在容器下方并包括下层和上层的防振装置。 下层由平行六面体形式的至少两层长的层叠橡胶体组成,并且上层由固定在容器的底板和容器的上表面之间的多个柱状隔振器 跛脚橡胶体。 每个层压橡胶体包括交替层压的橡胶层和金属板。 在另一方面,无振动容器包括容纳在外壳中的外壳和内壳,并且隔振装置插入在外壳和内壳之间,以相对于外壳支撑内壳。

    Device for controlling a propagation direction of noise
    20.
    发明授权
    Device for controlling a propagation direction of noise 失效
    用于控制噪声传播方向的装置

    公开(公告)号:US4158401A

    公开(公告)日:1979-06-19

    申请号:US703985

    申请日:1976-07-09

    摘要: A device for controlling a propagation direction of noise, which is preferably associated with a sound insulating wall to significantly improve its sound reducing effect of alleviating noise emitted from a noise source such as a railroad, highway and the like on which an electric car and automobiles run. The device comprises a hollow structural body composed of a plurality of elongated vertical hollow passages arranged at right angles to a substrate and spaced apart from each other by means of partition walls. The upper noise inlet side surface of the hollow passages face a propagation direction of noise emitted from the noise source and serve to refract and lag in phase the noise passed therethrough, thereby producing a sound reducing region located intermediate between a direct sound propagation and the refracted sound propagation. In one embodiment, a pair of hollow structural bodies are arranged in opposition to each other to form an arch type device. In another embodiment, the hollow structural body may be provided at its noise inlet or outlet side surface with an extension of the hollow passages.

    摘要翻译: 一种用于控制噪声传播方向的装置,其优选地与隔音壁相关联,以显着改善其减轻从诸如铁路,公路等的噪声源发出的噪声的声音降低效果,其中电动汽车和汽车 跑。 该装置包括中空结构体,该中空结构体由多个细长的垂直中空通道构成,该垂直中空通道以与基底成直角的方式布置并且通过分隔壁彼此间隔开。 中空通道的上部噪声入口侧表面面对从噪声源发出的噪声的传播方向,并且用于使通过的噪声相位折射和滞后,从而产生位于直接声音传播和折射之间的声音降低区域 声音传播。 在一个实施例中,一对中空结构体彼此相对布置以形成拱形装置。 在另一个实施例中,中空结构体可以设置在其噪声入口或出口侧表面,并具有中空通道的延伸部分。