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公开(公告)号：US20240328893A1
公开(公告)日：2024-10-03
申请号：US18578820
申请日：2022-05-31
发明人： Yugang WU , Jiangfeng ZHU , Bin ZHAO
IPC分类号： G01M7/02
CPC分类号： G01M7/022
摘要： A decoupling mechanism (01) for large-displacement vibration tests includes a first transfer decoupling assembly (1), a rotary amplifying assembly (3) and a second transfer decoupling assembly (2), wherein the first transfer decoupling assembly (1) includes a first transfer shaft (11) and a first transfer main body (12) axially connected to the first transfer shaft (11); the second transfer decoupling assembly (2) includes a second transfer shaft (21) and a second transfer main body (22) axially connected to the second transfer shaft (21); an extension direction of the axis of the first transfer shaft (11) is the same as that of the axis of the second transfer shaft (21); a first connecting shaft (15) is arranged between the rotary amplifying assembly (3) and the first transfer main body (12), and a second connecting shaft (25) is arranged between the rotary amplifying assembly (3) and the second transfer main body (22); and extension directions of the axis of the first connecting shaft (15) and the axis of the second connecting shaft (25) are the same and are perpendicular to that of the axis of the first transfer shaft (11) or the second transfer shaft (21). A vibration testing apparatus prepared by combining the decoupling mechanism (01) with a vibration exciter (02) and a sliding table assembly (03) realizes large-displacement vibration of the sliding table assembly.
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公开(公告)号：US11898944B2
公开(公告)日：2024-02-13
申请号：US17159447
申请日：2021-01-27
摘要： An oscillating device including a vibrating table, an actuator configured to oscillate the vibrating table in a first direction, a coupling mechanism configured to couple the vibrating table with the actuator in such a manner that the vibrating table is movable relative to the actuator in a second direction orthogonal to the first direction, and a counter balancer attached to the vibrating table and configured to compensate an imbalance of an oscillated portion including at least the vibrating table, the imbalance being caused by attaching the coupling mechanism to the vibrating table.
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公开(公告)号：US11879817B2
公开(公告)日：2024-01-23
申请号：US18242684
申请日：2023-09-06
发明人： Weiliang Wang , Yanfeng Geng , Li Sheng , Jinming Tian , Minglei Li
摘要： The present invention belongs to the technical field of oil field drilling, and relates to a ground testing device for a stabilized platform of a rotary steerable drilling tool. The ground testing device includes: a first supporting member and a second supporting member that are oppositely arranged, where the second supporting member is provided with a first mounting hole; a drill collar and a drill collar motor mounted outside the first supporting member, where a motor shaft of the drill collar motor penetrates the first supporting member and is connected to the drill collar, and a stabilized platform mounting assembly is arranged inside the drill collar; and a first vibration member connected to the drill collar and a second vibration member arranged in the first mounting hole in a sleeved manner, where an elastic member is arranged between the second vibration member and the second supporting member, and the elastic member is arranged on the second vibration member in a sleeving manner. An end portion of the first vibration member is provided with first vibration teeth, an end portion of the second vibration member is provided with second vibration teeth matching the first vibration teeth, and the second vibration member is provided with a first stop member which matches a second stop member arranged in the first mounting hole. According to the present invention, vibration, interference loading, and high-temperature simulation can be performed, and ground tests of different types of mechanical stabilized platforms are achieved.
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公开(公告)号：US11835426B2
公开(公告)日：2023-12-05
申请号：US17705575
申请日：2022-03-28
发明人： Akira Hosoyama , Yuji Nakaura , Yoshikado Yamauchi
CPC分类号： G01M7/022 , B06B1/0261 , G01M7/025
摘要： A vibration control system calculates a Kurtosis Response Spectrum (KRS) of a response waveform which characterizes non-Gaussianity in a random vibration test and is utilized for vibration control. The system compares a target KRS and the response KRS, and controls a characteristic of a phase used to generate a waveform for control such that the response KRS becomes equal to the target KRS. The waveform for control is generated by applying a random phase to each frequency component of an amplitude corresponding to Power Spectral Density (PSD). The system controls a characteristic of this phase (e.g., standard deviation) per frequency, controls the KRS, deforms the waveform for control on the basis of an equalization characteristic, and calculates a drive waveform. The system sequentially updates the equalization characteristic on the basis of the response waveform and the drive waveform. The calculated drive waveform is provided to a vibration generator.
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公开(公告)号：US11680869B2
公开(公告)日：2023-06-20
申请号：US17010988
申请日：2020-09-03
CPC分类号： G01M7/025 , G01M7/022 , G01N3/32 , G01N2203/0067 , G01N2203/0658
摘要： A new vibration test-cell that allows a static load to be applied simultaneously with lateral vibration coupled with in-situ microscopy that allows for the ability to open a fatigue crack up to a desired gap, as well as generate acoustic emission (AE) from vibration excitation, micro-fracture events are captured by the AE measurement while the physical observation of the crack faying surfaces is performed in-situ with an optical microscope embedded in the test cell.
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公开(公告)号：US09500559B2
公开(公告)日：2016-11-22
申请号：US14500934
申请日：2014-09-29
发明人： Zhiming Huang , Dagang Zhang
CPC分类号： G01M5/0058 , G01M5/0066 , G01M7/022 , G01M7/027 , G01M7/04
摘要： Apparatus and methods related to damping testing are disclosed. For example, some embodiments may contain a testing platform supported on wheels and moveable by hydraulic cylinders, and two fasteners for fastening the testing sample, one fixed on the testing platform and the other moveable along the testing platform by another hydraulic cylinder, and may be used for the damping testing of slender structures such as umbilicals and flexibles used in oil and gas underwater field development.
摘要翻译： 公开了与阻尼测试相关的装置和方法。 例如，一些实施例可以包含支撑在车轮上并由液压缸可移动的测试平台，以及用于紧固测试样本的两个紧固件，固定在测试平台上的一个紧固件，另一个固定在测试平台上，另一个固定在测试平台上， 用于石油和天然气水下场发展中使用的细长结构如脐带和挠性物的阻尼测试。
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公开(公告)号：US09377375B2
公开(公告)日：2016-06-28
申请号：US13472880
申请日：2012-05-16
申请人： John Alderson , Joseph D. Wetzel
发明人： John Alderson , Joseph D. Wetzel
CPC分类号： G01M7/022
摘要： In operating a vibration testing system, a table is provided with a plurality of distinct regions, and each of the plurality of distinct regions is provided with at least one vibrator of the plurality of vibrators and at least one accelerometer of the plurality of accelerometers. Target vibration strengths are set for each region, and the vibrators are operated. Local vibration strength is measured at each distinct region with the corresponding accelerometer(s) of the plurality of accelerometers. A signal corresponding to each of the measured local vibration strengths is provided to a controller. An individual vibrator control signal is calculated for each distinct region based on the corresponding measured local vibration strength and the corresponding target vibration strength. The individual control signals are provided from the controller to control the vibrator(s) of each distinct region to achieve the target vibration strength at each of the distinct table regions.
摘要翻译： 在操作振动测试系统时，桌子设置有多个不同的区域，并且多个不同区域中的每一个设置有多个振动器中的至少一个振动器和多个加速度计中的至少一个加速度计。 针对每个区域设定目标振动强度，振动器被操作。 在具有多个加速度计的相应加速度计的每个不同区域处测量局部振动强度。 将对应于每个所测量的局部振动强度的信号提供给控制器。 基于对应的测量的局部振动强度和相应的目标振动强度，针对每个不同区域计算单独的振动器控制信号。 从控制器提供单独的控制信号以控制每个不同区域的振动器，以在每个不同的台区域实现目标振动强度。
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8.发明申请公开(公告)号：US20160138998A1
公开(公告)日：2016-05-19
申请号：US14796452
申请日：2015-07-10
申请人： Sony Corporation
发明人： Donghong ZHENG
摘要： Embodiments of this application provide a noise detection method, noise detection apparatus and electronic equipment. The noise detection apparatus is used to detect a noise characteristic of electronic equipment and includes: an analyzing unit configured to analyze vibration signals at vibration of the electronic equipment, so as to acquire frequency characteristics of the vibration signals; and a calculating unit configured to calculate a parameter reflecting the noise characteristic of the electronic equipment according to an analysis result of the analyzing unit. According to the embodiments of this application, the noise characteristic of the electronic equipment is detected by calculating a ratio between effective intensity and base wave intensity of a total harmonic wave at vibration of the electronic equipment, thereby more conveniently and accurately detecting whether the electronic equipment is prone to generate a noise.
摘要翻译： 该应用的实施例提供噪声检测方法，噪声检测装置和电子设备。 噪声检测装置用于检测电子设备的噪声特性，包括：分析单元，被配置为分析电子设备振动的振动信号，以获得振动信号的频率特性; 以及计算单元，被配置为根据分析单元的分析结果计算反映电子设备的噪声特性的参数。 根据本申请的实施例，通过计算电子设备振动时的总谐波的有效强度与基波强度之比来检测电子设备的噪声特性，从而更方便，准确地检测电子设备 容易产生噪音。
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公开(公告)号：US20160109324A1
公开(公告)日：2016-04-21
申请号：US14885731
申请日：2015-10-16
发明人： Hakgu LEE , Byungsun HWANG , Wookyoung LEE , Mungyu JEONG
CPC分类号： G01L25/00 , G01M5/0008 , G01M5/0016 , G01M5/0025 , G01M5/005 , G01M5/0083 , G01M5/0091 , G01M7/022 , Y02B10/30
摘要： A multi-axis resonance fatigue test method and apparatus are provided by considering both stiffness coupling and inertia coupling in a resonance fatigue test that causes a complicated behavior and nonsymmetrical bending of a test article such as a wind turbine blade due to a coupling effect. In the method, a processor of the apparatus calculates a load value by considering a coupling between at least two axes of the test article. Also, the processor determines respective single-axis equivalent loads from the calculated load value by considering the coupling. This coupling may include at least one of a stiffness coupling and an inertia coupling.
摘要翻译： 通过考虑共振疲劳试验中的刚度耦合和惯性耦合两者来提供多轴共振疲劳试验方法和装置，其由于耦合效应而导致诸如风力涡轮机叶片的试验制品的复杂行为和非对称弯曲。 在该方法中，该装置的处理器通过考虑测试物品的至少两个轴之间的耦合来计算负载值。 此外，处理器通过考虑耦合从所计算的负载值确定相应的单轴等效负载。 该联接可以包括刚度耦合和惯性耦合中的至少一个。
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公开(公告)号：US20160047709A1
公开(公告)日：2016-02-18
申请号：US14800153
申请日：2015-07-15
申请人： ROLLS-ROYCE PLC
CPC分类号： G01M7/022 , G01M5/0016 , G01M5/0033 , G01M5/0066 , G01M7/00 , G01M15/14
摘要： The present invention provides processes by which fatigue testing can be carried out by altering the vibrational characteristics of a component, but without physically altering the component itself. In particular the invention provides a method of performing high-cycle fatigue testing on a component, the method including the steps of: attaching one or more masses to the component to alter the stress distribution of the component under vibration; and carrying out high-cycle fatigue testing by exciting the component at a low fundamental frequency of the component. The component can then be tested at a low frequency, which is easier to excite, but fail in a position of the component characteristic of a more complex modeshape.
摘要翻译： 本发明提供了通过改变部件的振动特性而不会物理地改变部件本身来进行疲劳试验的方法。 特别地，本发明提供了对部件进行高周疲劳试验的方法，所述方法包括以下步骤：将一个或多个质量块附接到所述部件以改变所述部件在振动下的应力分布; 并通过在该组件的低基频激发该组件来进行高周疲劳测试。 然后可以以较低的频率测试该组件，这更容易激发，但是在更复杂的模式形状的特征的组件的位置处失败。
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