1) narrowband random loading
窄带随机载荷
1.
Two kinds of situations were discussed respectively on the narrowband random loading and the broadband random loading.
针对工程实践中复杂随机载荷下振动疲劳寿命难估算的情况,基于功率谱密度函数(PSD)对随机载荷下的振动构件进行疲劳寿命估算,分别讨论了窄带随机载荷和宽带随机载荷两种情况,方法简单,具有很强的工程实用性。
2) broad band random loading spectrum
宽带随机载荷谱
1.
Calculation of structural fatigue life under broad band random loading spectrum;
宽带随机载荷谱下结构疲劳寿命的计算
2.
Based on Dirlik′s probability density function of rain-flow stress cycle range,considered the S—N curve in the long life range,an analytical solution of calculating structural fatigue life under broad band random loading spectrum is established by using the incomplete Г function,in which a fast calculating structural fatigue life method is given by using the frequency domain analytical way.
以D irlik方法的雨流循环计数应力范围概率密度函数为依据,考虑长寿命区的S—N曲线,利用不完全Г函数建立了一种宽带随机载荷谱下结构疲劳寿命计算的解析解法,为用频域法计算结构在宽带随机载荷谱下疲劳寿命提供了一种快捷方法。
3) broadband random loading
宽带随机载荷
1.
Two kinds of situations were discussed respectively on the narrowband random loading and the broadband random loading.
针对工程实践中复杂随机载荷下振动疲劳寿命难估算的情况,基于功率谱密度函数(PSD)对随机载荷下的振动构件进行疲劳寿命估算,分别讨论了窄带随机载荷和宽带随机载荷两种情况,方法简单,具有很强的工程实用性。
4) narrowband random
窄带随机
1.
According to engineering practical requirements,a set of topology optimization formula and its procedure,with static loads and narrowband random excitations on the structure,are built.
基于模态截断法和一些近似处理,导出了一套窄带随机均方动响应及其灵敏度公式,再根据工程实际要求,研究了静载荷和窄带随机载荷作用下结构的动力学拓扑优化设计方法和算法,提供的算例显示了本方法的合理性和有效性。
5) stochastic loads
随机载荷
1.
For this purpose,several assumption are pre-determined, including a close relationship between the average and stochastic loadsof a single pick.
截齿的载荷是确定连续采煤机截割工况和研究其截割性能的依据,根据对连续采煤机截割滚筒结构特殊性和工作条件复杂性的分析,通过假设单个截齿平均载荷与随机载荷的关系、截齿的受力分布类型以及硬质包裹体的接触概率,利用叠加原理,建立了在复杂煤层截割时,连续采煤机上处于截割断面不同位置的截齿的随机载荷的数学模型。
2.
On the foundation of the theory which is about the single pick's average load, analyzed loads's probability distribution and relevance when a single pick cuts various coal rock, on this basis, Utilizing the stochastic process theory ,set up the mathematical model about the single pick's stochastic loads.
本文在单齿平均载荷理论的基础上，分析了单齿截割各种煤岩时载荷的概率分布和相关性，在此基础上，利用随机过程理论，建立了单齿随机载荷的数学模型。
6) Random Load
随机载荷
1.
Simulation study of random loads on a cutting head of roadheader;
掘进机截割头随机载荷的模拟研究
2.
Statistics analysis and simulation of random loads for bridges;
桥梁随机载荷数据采集和数值模拟
3.
Model to realize the remote parameter control of random load;
随机载荷的远程参数控制实现的模型
补充资料：宽带和窄带业务
宽带业务是相对窄带业务而言的，一般来说，对于速率低于2Mb/s的通信业务统称窄带业务，如电话网、N-ISDN所提供的业务。对于高于2Mb/s的通信业务，如帧中继业务、视频点播、ATM业务、TV会议等称为宽带通信业务。 目前投入应用的宽带接入技术主要有两种：ADSL和FTTX＋LAN。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条