• 介绍了冲击振动峰值传感器设计实验结果

    The design and experiment result of the shock vibration peak transducer are introduced.

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  • 压电分流电路电感值与电阻值优值明显降低车体弯曲振动峰值

    When the optimal inductance and resistance of the piezoelectric shunting circuit are obtained, the peak of the first order vertical bending vibration peak can be reduced obviously.

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  • 近几年爆破界学者把人工神经网络运用预测爆破效果爆破振动峰值取得了较好的效果。

    In the last few years, people have acquired better knowledge in estimating the result of blasting and the peak of vibration in blasting.

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  • 通过随机振动峰值应力响应考核空间相机随机振动环境下支撑结构可靠性存在一定的局限性。

    It is not perfect to estimate the reliability of primary mirror supporting structures in space cameras based on the peak value of stress response at a random vibration environment.

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  • 是因为结构某一阶模态振动时,辐射噪声频谱上出现峰值

    Because the structure vibrates at some modal, a vibration peak value will appear at its noise frequency spectrum.

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  • 随后计算出代表故障特征振动信号峰值指标度指标、脉冲指标裕度指标等参数

    Then peak index, kurtosis index, impulsion index and tolerance index of the vibration signal are calculated. These parameters represent the characteristic of failures.

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  • 基于随机振动理论阐述了峰值拾取基本原理和方法,提出了虚拟响应概念

    The principle of the method of peak value picked was expounded based on random vibration theory, and the concept of virtual response was brought forward.

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  • 计算结果表明,由于隔声罩内声腔与结构振动相互作用,考虑声固耦合后,隔声罩透射损失曲线峰值较多

    Because of taking the sound-solid interaction into account, there are more peak value in transmission loss curve.

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  • 基于岩石爆破损伤影响范围控制质点峰值振动速度判据,就临近岩石边坡开挖轮廓面的爆破开挖设计方法进行了探讨。

    Basen on the criteria of the peak particle velocity(PPV) for blast-induced damage, the design approach for excavation blasting near contour of rock slope is discussed.

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  • 表明振动响应能量集中分布波浪载荷的峰值频率处。

    The example shows that the energy of vibration respondence is mainly distributed over the peak frequency of the wave force.

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  • 轴系扭振对数衰减正比每个振动周期耗散的能量与峰值应能比值。

    This logarithmic decay ratio of the shaft set is in direct proportion to the ratio of the energy dissipated per cycle to the peak strain energy.

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  • 对风机振动量监测可以采用振动信号波形的实时监测,也可采用有效值的实时监测。

    The measuring vibrating signal method may be used on real time, mean while, vibrating signal can be measured by peak to peak value or true virtual value .

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  • 星期五地震震中峰值地面加速度或者振动接近距离震中110英里(172公里岛第一核电站设计承受能力的2倍

    Peak ground acceleration, or shaking, caused by Friday's earthquake was nearly double—at its epicenter—than what the Fukushima Daiichi plant, 110 miles (172 km) away, was built to withstand.

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  • 振动加速度峰值受轮轴荷载影响较大,基本上呈线性增加趋势;列车长度振动加速度影响较小。

    The effects on the ground vibration by the factors such as the length, the load and the speed of the train are analyzed.

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  • 测点广义工作二维图表示出来通过测点振动响应峰值异同最终实现故障提取定位

    After representing GODS curves of all measuring point with two-dimensional graph, we can find the fault type and location through differences of the peaks of vibration response.

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  • 仪器不仅能够测量振动曲线,而且还具有峰值保持功能,可直接显示测点的峰-峰位移

    The apparatus measures the vibration time-history, possesses the peak-value-holding function and displays the peak-peak values directly.

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  • 利用时域分析振动峰值因子48之间

    The crest factor of vibration in automobiles is about 4~8 by time-domain analysis.

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  • 文中讨论了车轮振动加速度功率密度峰值性质,由于履带节的作用使车轮产生与车速有关的窄带随机振动

    There is a sharp peak in the power spectral density of da- ta. It is a narrow band random vibration which depends on t…

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  • 振动时效使残余应力峰值降低并得到均化主要原因材料内部微塑性变形局部性

    Vibratory stress relief (VSR) can reduce the residual stress in component. The mainly cause is microcosmic plastic deformation of local region.

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  • 振动时效使残余应力峰值降低并得到均化主要原因材料内部微塑性变形局部性

    Vibratory stress relief (VSR) can reduce the residual stress in component. The mainly cause is microcosmic plastic deformation of local region.

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