文章摘要信息 关键词 ： 振动疲劳；寿命估算；随机载荷；功率谱密度 [gap=948]Keywords : vibration fatigue;life prediction;random loading;power spectral density
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动荷载的分类第一类周期荷载(periodic)第二类冲击荷载(explosion, impulsive)第三类随机荷载(random loading)3.动力计算中体系的自由度a.
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random loading spectrum 随机载荷谱
random loading spectra 随机载荷谱
broadband random loading 宽带随机载荷
narrowband random loading 窄带随机载荷
broad band random loading 宽带随机谱
Random loading of samples 样品随机装载
broad band random loading spectrum 宽带随机载荷谱
random ordered loading [建] 随机有序载荷
random wind loading 随机风荷
Random response prediction and random loading identification is still the difficulty of vehicle dynamic environment study.
随机响应的预示和随机载荷的识别仍然是目前飞行器动力学环境研究中的难点。
参考来源 - 随机振动的虚拟激励法研究The comparison between the experimental results and the computer simulations show that the IPEM is a reliable, simple and efficient method for the identification of stationary random loading spectrum acted on a linear time-invariant system.
试验结果与计算机模拟的对照研究表明，用逆虚拟激励法识别作用在线性时不变系统的平稳随机载荷谱，方法可靠、简单高效，识别精度可以满足工程需要，抗噪声干扰能力强，有较好的实用价值和发展前景。
参考来源 - 结构随机载荷识别的理论和实验研究·2,447,543篇论文数据，部分数据来源于NoteExpress
A sort of efficient calculation method was developed for fatigue life prediction under random loading.
研究了一种用于随机载荷下试件疲劳寿命预估的有效计算方法。
The semi-analytical solution for evaluating ESR from spectral density function of wide-band random loading is presented.
提出了依据宽带随机谱功率密度函数求解等效应力幅的半解析公式。
A calculation method used for fatigue life prediction of components under narrow band random loading is discussed in detail.
文中详细论述了机械构件在窄带随机应力作用下疲劳寿命预测的计算方法。
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