通过测量车辆的振动加速度响应信号获取路面谱的方法具有很好的实用性。
The method of getting road response spectrum by measuring vehicle vibration acceleration response signals is practicable.
首先用加速腐蚀环境谱对无裂纹试件进行腐蚀试验,然后进行拉伸超载疲劳试验。
The tension overload fatigue tests are carried out, which are corroded under the accelerated corrosion environment in this paper.
对这三种环境各自采用相应的当量化办法,即可组合成便于加速试验的当量环境谱。
We use equivalent method for each environment and we can compose a equivalent environment spectrum to accelerate the experiment.
并从C—T曲线的通用性出发,说明加速腐蚀因子与应力水平、载荷谱以及裂纹尺寸无关。
The weal-correlation between acceleration corrosion factor and stress level, load spectrum and crack size is gained base on the generality of C—T curves.
频率响应谱中的零期渐近开始加速。
The frequency in the response spectrum where the zero period acceleration asymptote begins.
结果表明:随着车速的增加,座椅和地板振动加速度功率谱的幅值有所增加;
The result shows that the vertical accelerations of seat and floor increase with the increase in speed;
什么是谱加速度?。
本文应用样条函数方法拟定了一个由加速度记录快速计算结构震动反应谱的方法。
This paper proposes a procedure to determine the response spectra by spline function analysis using acceleration record as input.
最后给出如何求解车辆上任一固定点非平稳随机响应的瞬时加速度功率谱。
Finally, the method of solving instantaneous acceleration power spectrum of nonstationary random response of arbitrarily point on vehicle is presented.
综合任务谱和相应的转速谱的获得为推导加速任务试车谱奠定了基础。
From the composite mission spectrum and the related rotating speed spectrum, the accelerated mission test spectrum can be derived.
功率反馈电子直线加速器功率源的频率稳定性与磁控管功率谱的慢漂移、谱的稳定性和谱的形状有关。
The frequency stability of the power source for a feedback LINAC depends on the slow shift, stability and form of power spectrum of the magnetron.
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。
The power spectral density function of ground acceleration can be described as filtered white noise applied on each support point.
质谱、核磁共振等现代分析技术作为代谢组学研究的技术平台,它们的整合运用加速了代谢组学的研究进程。
The integration on mass spectrometry, nuclear magnetic resonance, and other modern analytical techniques, made up of the metabonomics technology platform, have accelerated the study on metabonomics.
在加速度反应谱一致的前提下,研究了近断层速度脉冲的工程特性。
Under the condition of acceleration response spectrum being consistent, the engineering properties of near-fault velocity pulse are studied.
在负重轮轮轴处安装加速度传感器,通过测量该处的时域加速度来间接计算路面功率谱,大大简化了操作过程。
Fixing the acceleration sensor in the axis of the wheel, by measuring the acceleration of the axe to calculate road power spectral indirectly, this greatly simplifies the operation process.
本文研究并讨论了基岩上单一土层中沉积局部场地对入射地震波的加速度时程和加速度反应谱的放大作用。
The paper has studied and discussed the amplification of incident waves about acceleration time-domain and acceleration response spectrum in local deposit on the bedrock of single layered soil .
对比了竖向和水平向加速度、速度反应谱及谱与震级的变化特征。
The variations between both horizontal and vertical acceleration spectra, and velocity response with earthquake magnitudes have been compared.
在此基础上给出了基于改进算法的距离-加速度谱图检测目标机动信息的模式并证明了该检测模式的合理性。
Based on that, a new mode of detection of information about maneuvering target on the basis of range-acceleration spectrum of the improved algorithm is proposed and its rationality is testified.
这说明对于实际地震加速度图,其功率谱是与均值速度反应谱相对应的。
This means that for actual earthquake accelerograms their power spectrum corresponds to mean response spectrum.
向基于质谱的临床研究转变还将加速。
The shift to mass spectrometry-based clinical research continues to rapidly accelerate.
详细推导了多自由度结构多测点加速度响应的互功率谱模态矩阵展开式。
The modal matrix expansion of the cross power spectra of the multi-measurement acceleration response in the multi-DOF structure is derived in detail.
传统的卫星振动测试由于采用加速度谱包络的方式获取振动台控制谱,导致了“过试验”的发生。
The over-testing problem is mainly caused by the traditional method in which the acceleration spectrum was enveloped and used as the control spectrum of the vibration table.
提出一种以渐进谱为目标谱的生成幅值和频率非平稳地震加速度时程的迭代方法。
Then a new iteration method is developed for generation of random accelerograms non-stationary both in amplitude and frequency which are compatible with target.
根据不同的振动加速度功率谱,可以诊断出气缸壁间隙值以确定柴油机是否需要修理。
From the differences of the vibration acceleration signal power spectrum, the cylinder clearance can be diagnosed, so that whether the engine may be repaired or not can be determined.
我们在能量谱快速计算的基础上,研制成功了用于数字化加速度仪的自动地震信号检波器。
An automatic seismic signal detector based on a fast algorithm of energy spectrum has been developed for digital accelerograph.
建立了非平稳随机响应瞬时加速度功率谱与瞬时位移功率谱之间的关系;
The relation between instantaneous acceleration power spectrum and instantaneous displacement power spectrum is presented.
应用rbf神经网络建立了汽车车身质心垂直加速度功率谱密度、俯仰角加速度功率谱密度和路面功率谱密度之间的非线性映射模型。
The nonlinear mapping relation among the PSD of vehicle body centroid vertical acceleration, pitching angular acceleration and the road surface were found by RBF neural networks.
运用NDFEPS - 2d计算了若干场地模型的地面加速度反应谱、速度反应谱、位移反应谱。
The ground surface response spectrum of acceleration, velocity and displacement were calculated using NDFEPS-2D.
把不完全乔里斯基预条件技术应用到其积分方程,极大地改善了其谱特性,加速了矩阵方程的迭代收敛。
The IC precondition technique is applied to the integral equation to improve the spectral properties and accelerate the iteration speed of matrix equation.
并与加速器D—D中子源的中子能谱进行了比较。
The neutron spectra from the gas discharge facility and D-D neutron source are compared.
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