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公开(公告)号：US5613009A
公开(公告)日：1997-03-18
申请号：US166962
申请日：1993-12-15
CPC分类号： G10K11/1784 , F16F15/02 , F16F7/1011 , G05D19/02 , G10K2210/1291 , G10K2210/3026 , G10K2210/3027
摘要： Disclosed is a vibration control method being largely effective in vibration-proof even when a natural frequency is relatively low and its transmissibility of vibration is high and being thus effective in reducing vibration in a wide range of frequencies; and its apparatus. In the above method, vibration information of a vibration source as a reference signal and vibration information of a vibration-proof object as an error signal are inputted into an adaptive filter. The reference signal is processed by regenerating a filter coefficient on the basis of adaptive algorithm, to form a feedforward signal. In the other hand, vibration information of the vibration-proof object is inputted in a feedback calculating means, and a feedback control signal is formed on the basis of a feedback control rule. The feedforward control signal and the feedback control signal are synthesized, to form a drive signal for a vibration exciting means. The vibration exciting means is thus controlled and driven on the basis of the drive signal.
摘要翻译： 公开了一种振动控制方法，即使当固有频率相对较低并且其振动的传递性高，并且因此有效地减少宽频率范围内的振动时，其在防振性方面也很有效。 及其装置。 在上述方法中，将作为参考信号的振动源的振动信息和作为误差信号的防振对象的振动信息输入到自适应滤波器中。 通过基于自适应算法再生滤波系数来处理参考信号，以形成前馈信号。 另一方面，防振对象的振动信息被输入到反馈计算装置中，并且基于反馈控制规则形成反馈控制信号。 合成前馈控制信号和反馈控制信号，以形成用于振动激励装置的驱动信号。 因此，基于驱动信号来控制和驱动振动激励装置。
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公开(公告)号：US5249784A
公开(公告)日：1993-10-05
申请号：US527505
申请日：1990-05-23
CPC分类号： F16F9/532
摘要： A vibration isolating device comprises a base, a plurality of support members each placed onto the base and comprised of a two series layer of an electroviscous body and an elastomeric body, and a cradle supported through these support members. These support members are provided with circuit for applying voltage to each electroviscous body, respectively.
摘要翻译： 隔振装置包括基座，多个支撑构件，每个支撑构件各自放置在基座上并且由电粘体和弹性体的两个串联层组成，并且支撑通过这些支撑构件。 这些支撑构件分别设置有用于向每个电粘体施加电压的电路。
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公开(公告)号：US5141201A
公开(公告)日：1992-08-25
申请号：US432839
申请日：1989-11-07
申请人： Keiichiro Mizuno , Kazutomo Murakami , Kazuyoshi Iida , Toshihiro Miyazaki , Yoji Suizu , Nobuo Masaki
发明人： Keiichiro Mizuno , Kazutomo Murakami , Kazuyoshi Iida , Toshihiro Miyazaki , Yoji Suizu , Nobuo Masaki
IPC分类号： F16F9/53 , F16F13/30 , F16F15/023
CPC分类号： F16F13/30 , F16F15/0232 , F16F9/532
摘要： A vibration damping apparatus for transportation includes a vertical direction damping device having air springs and air dampers arranged in parallel on a base and horizontal direction damping device having laminated rubbers. The vertical and horizontal damping devices are combined in series for supporting a load base. The apparatus further includes an air supply source for supplying air into the air springs, control valves provided between the air springs and the air supply source for controlling air supply into and exhaust from the air springs, displacement detecting device for detecting displacements of the load base relative to the bases, and control device for controlling the control valves on the basis of results detected by the displacement detecting device to maintain the load base horizontally and at a constant level relative to the base whatever load is loaded on the load base.
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公开(公告)号：US4926985A
公开(公告)日：1990-05-22
申请号：US261213
申请日：1988-10-24
摘要： An oscillating apparatus comprises a cylinder, a piston reciprocatingly movably fitted in the cylinder, shaft members connected to the piston and extending out of the cylinder. The cylinder, piston and shaft members form an oscillator. An inlet and an outlet for an electro-rheological fluid are provided at each of two cylinder chambers defined in said cylinder by the piston. The apparatus further comprises voltage applying devices for applying electric voltage to the electro-rheological fluid passing through the inlets and outlets, respectively, so that applications of the voltage to the inlet of one cylinder chamber and the outlet of the other cylinder chamber are simultaneously effected and applications of the voltage to the inlets of both the cylinder chambers are alternately effected. With this arrangement, the switching-over of the closing and opening of the inlets and outlets are very rapidly performed by the application and removal of the electric voltage so that the piston undergoes vibration which is transmitted through the shaft members to an object, structure or the like, with the result that the object is controllingly vibrated and vibration to which the object is subjected is effectively damped.
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公开(公告)号：US4929874A
公开(公告)日：1990-05-29
申请号：US247562
申请日：1988-09-22
摘要： A vibration control system for damping vibration of an body to be isolated against vibration. The body is supported on a movable base through the medium of vibration-damping supporting structure. The control system comprises a vibration sensor for detecting vibration of the movable base. An inverse vibration signal generating circuit includes a digital sensor and in supplied with a detection signal outputted from the vibration sensor for generating a signal with a waveform to cancel out the vibration of the body through interference therewith. An actuator is connected operatively to the movable base and the inverse vibration signal generating circuit for converting the signal derived from the latter into a mechanical vibration to be applied to the body.
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公开(公告)号：US4635501A
公开(公告)日：1987-01-13
申请号：US614918
申请日：1984-05-29
CPC分类号： F16H55/14 , Y10S74/04 , Y10T74/19865 , Y10T74/1987
摘要： Gear made of magnetic material is attached with permanent magnet on the web thereof for damping vibration and noise caused when gears are in operation.
摘要翻译： 由磁性材料制成的齿轮在其腹板上附有永久磁铁，用于阻止当齿轮运转时引起的振动和噪音。
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7.发明授权公开(公告)号：US06324290B1
公开(公告)日：2001-11-27
申请号：US08949759
申请日：1997-10-14
IPC分类号： H04R300
CPC分类号： G01H1/00
摘要： Acoustics or vibrations at a plurality of predetermined positions are respectively detected in the form of analog values, and the detected analog values are respectively converted into digital values. The digital values are subjected to digital filtering by using the digital values and filter factors, and at least one of the filter factors is changed such that the difference between the total sum of the results of digital filtering and a targeted value becomes minimum. The rate of contribution to an evaluation point is computed by using the results of digital filtering within a predetermined time when the difference becomes minimum, and the computed rate of contribution is displayed.
摘要翻译： 分别以模拟值的形式检测多个预定位置处的声学或振动，并将检测到的模拟值分别转换为数字值。 通过使用数字值和滤波因子对数字值进行数字滤波，并且改变滤波器因子中的至少一个，使得数字滤波的结果和目标值的总和之间的差成为最小。 通过在差异变为最小时的预定时间内使用数字滤波的结果来计算对评价点的贡献率，并且显示计算出的贡献率。
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公开(公告)号：US4605091A
公开(公告)日：1986-08-12
申请号：US742508
申请日：1985-06-07
CPC分类号： E04B1/84
摘要： A sound insulating apparatus. Heretofore, the sound insulating apparatus to be installed in a ventilator, etc. of an architecture requires a long duct, and becomes large in its size and heavy in its weight, and is not sufficient in its sound absorbing performance.The sound insulating apparatus according to the present invention comprises a closed container including a first opening and a second opening, and having a sound absorbing member at its internal surface. The first opening is provided with a sound converging means for converging a sound wave coming into the closed container through the first opening to a predetermined place within the closed container. The second opening is formed in a place away from the predetermined place.This sound insulating apparatus is installed in a communicating port for intercommunicating two spaces partitioned with respect to each other, such as, for example, a ventilator of an architecture, with the first opening facing toward one space and the second opening facing toward the other space.
摘要翻译： 隔音装置。 迄今为止，安装在建筑物的呼吸机等中的隔音装置需要长的管道，并且其尺寸变大并且其重量很大，并且其吸声性能不足。 根据本发明的隔音装置包括封闭容器，其包括第一开口和第二开口，并且在其内表面具有吸音构件。 第一开口设置有用于将通过第一开口进入密闭容器的声波会聚到封闭容器内的预定位置的声音会聚装置。 第二开口形成在远离预定位置的位置。 这种隔音装置安装在用于相互连通的两个相互间隔的空间的连通端口中，例如建筑物的通风机，其中第一开口朝向一个空间，第二开口朝向另一个空间 。
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公开(公告)号：US5100096A
公开(公告)日：1992-03-31
申请号：US378112
申请日：1989-07-07
申请人： Keiichiro Mizuno , Kazuyoshi Iida
发明人： Keiichiro Mizuno , Kazuyoshi Iida
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 laminated 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.
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公开(公告)号：US4940914A
公开(公告)日：1990-07-10
申请号：US194371
申请日：1988-05-16
申请人： Keiichiro Mizuno , Kazuyoshi Iida
发明人： Keiichiro Mizuno , Kazuyoshi Iida
CPC分类号： G12B3/08 , F16F15/005
摘要： A vibration absorbing apparatus for reducing vibrations of a vibration damping objective comprises a vibration member excited by a piezo-ceramic element. The voltage applied to the piezo-ceramic element is controlled in accordance with the vibration state of the objective.
摘要翻译： 一种用于减少振动阻尼物体的振动的振动吸收装置包括由压电陶瓷元件激发的振动部件。 施加到压电陶瓷元件的电压根据物镜的振动状态进行控制。
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