The counter measures are proposed for reducing the acceleration noise of motorcycles.
提出了降噪措施，使该摩托车行驶加速噪声显著降低。
But the lower the time constant, the more horizontal acceleration noise will be allowed to pass through.
但是时间常数越低，允许通过的水平加速度噪声就越多。
A specialized noise test bench of automobile cooling fan was designed to carry out the bench test and the outer vehicle acceleration noise test also was conducted.
设计制造了发动机冷却风扇噪声性能测试专用试验台，用于冷却风扇的台架试验。
The results of real vehicle test show that utilizing transfer characteristics model can identify the main noise and vibration sources and their contribution to exterior acceleration noise of vehicle.
实车试验结果表明，利用传递特性模型可以确定车外加速噪声的主要振源、声源及其贡献。
There are a number of types of stressors taking different forms such as horror, pain, anoxia, hyperthermia, coldness, acceleration, noise and so on.
应激刺激的形式很多，恐惧、疼痛、缺氧、高温、寒冷、加速度、噪声等都是应激源。
The decisive factor is that the differentiation is not based on a sample over a discrete time period, but is a physical effect, so that the user sees a dynamic, low-noise acceleration signal.
决定性的因素是这种区分是没有根据的样本离散多时间，但它是一个物理作用，使用户会看到一个充满活力，低噪声加速度信号。
The ratio of signal to noise for acceleration vibration is far greater than that of steady vibration.
加速振动的信噪比远比稳态振动大得多。
The noise values measured by using gradual acceleration scanning and steady engine speed methods are also compared in this paper.
文中还比较了用发动机转速慢加速扫描的动态方法及稳态转速下测得的噪声值。
It has also been clear that the source of piston knock noise is the impact between piston and cylinder sleeve by the vibration acceleration of the engine's body surface.
又通过发动机机体表面振动加速度，确定活塞敲击噪声产生的根源在于活塞与缸套的碰撞冲击。
However, in respect of a vibration acceleration signal, the signal to noise ratio (SNR) is often so small that the periodic impulse component is submersed in its intense background noises.
通常检测的机械振动加速度信号，由于信噪比太低，即使存在周期性的冲击分量也往往被淹没在强的背景噪声之中。
A method of acquiring pipeline vibration noise is studied, and sampling of pipeline vibration signals using an acceleration sensor introduced.
研究了获取管道振动噪声干扰特征的方法，介绍了基于加速度传感器的管道振动信号的采集。
The noise power, sound intensity, sound pressure, vibration acceleration and corresponding time-frequency spectrum of 6480 driver axle surface were measured and analysed.
通过对6480型驱动桥的噪声功率、表面声强、表面声压、表面振动加速度以及相应的时频谱进行了全面、系统的测量和分析。
The power spectral density function of ground acceleration can be described as filtered white noise applied on each support point.
地面运动加速度功率谱模型为零均值的平稳高斯过程，描述为过滤白噪声施加于支撑各点。
It is essential to develop a system for measuring the operation parameters of an elevator such as acceleration, velocity, vibration, noise expediently and accurately.
因此，开发一套电梯综合测试系统，为电梯测试提供更方便、快捷、准确的仪器，对电梯加速度、速度、振动、噪声等参数进行测量是必要的。
Its power spectral model is the twice-filtered white noise model. Moreover, the relation between the power spectral intensity and the mean value of maximum ground acceleration is set up.
地震地面运动功率谱模型采用两次过滤白噪声模型，建立了地震地面运动谱强度与最大加速度均值之间的关系。
The vibration is characterized by the virtual value of acceleration, and the noise is indicated by the sound-pressure-level.
振动用加速度有效值描述，噪声以声压级表示。
But the normalized auto-correlation of real seismic acceleration record comprises an obviously random noise with amplitude value of 0.15 or so, that is so called super random content.
但是真实地震动的归一化自相关函数则有一较显著的随机噪声项，这个随机噪声的幅值为0。15左右，这就是本文中所说的超随机特性。
But the normalized auto-correlation of real seismic acceleration record comprises an obviously random noise with amplitude value of 0.15 or so, that is so called super random content.
但是真实地震动的归一化自相关函数则有一较显著的随机噪声项，这个随机噪声的幅值为0。15左右，这就是本文中所说的超随机特性。
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