1) reliability & availability
可靠性及可用率
2) RAS (reliability,availability,serviceability)
性能最佳性(可靠性、可用性及可修性)
3) profust reliability
率模可靠性
1.
To overcome the deficiency that the safety membership function of a structure or a system in safety engineering sometimes involves subjectivity in the application of profust reliability theory,a preliminary study was made for finding out the rootstock of the performance fuzziness of a random system.
针对率模可靠性理论应用中结构功能函数对结构安全(模糊事件)的隶属函数往往涉及主观因素的问题,对随机结构功能的模糊性产生根源进行了初步探索:利用等效水平截集处理功能函数的各随机分量,将连续随机向量映射为标准区间向量;在标准区间向量张成的凸域及其扩展空间中,研究截集水平和基于区间分析的结构非概率可靠性指标之间的定量关系。
4) credibility rate
可靠性概率
1.
In this paper,the writers calculated the credibility rate of combination-logic circuit with redundant item,and they also pointed out shield the out-error which input cause,the combination-logic circuit must be inter-digital conjunction.
对组合逻辑电路增加冗余后的可靠性概率进行了计算,指出为屏蔽可能引起输出错误的输入,组合逻辑电路各级电路之间应交错连接。
5) probabilistic reliability
概率可靠性
1.
Traditional probabilistic reliability method has been widely accepted and used to dealing with uncertainties in engineering.
对文 [8 ]中提出的非概率可靠性方法和广泛使用的传统的概率可靠性方法 ,在建模思想、模型结构和基于可靠性的结构优化设计等方面进行了比较研究。
2.
Mathematical model of topology optimization design of random structure was established,in which the mean of structural weight was taken as minimization objective function,the structural shape topology information was taken as design variables,and the probabilistic reliability index of structural foundamental frequency was taken as constraint conditon.
以结构总质量均值极小化为目标函数,以结构的形状拓扑信息为设计变量,以结构基频概率可靠性指标为约束条件,构建了随机结构拓扑优化设计数学模型。
3.
A mathematical model for topology optimization design with a random structure is established,in which the minimum mean of structural weight is taken as the objective function,the structural shape topology information is taken as design variables,and the probabilistic reliability index of structural total strain energy is taken as the constraint condition.
以结构总质量均值最小化为目标函数,以结构的形状拓扑信息为设计变量,以结构总应变能概率可靠性指标为约束条件,构建了随机结构的拓扑优化设计数学模型。
补充资料：可用率
表征可修复系统或元件可靠性的一个重要的定量指标。它表示可修复系统或元件在 t时刻能维持其正常功能，处于可用状态的概率。可用率分为两种：瞬时可用率和平稳状态可用率。前者指在t 时刻系统或元件能维持其正常功能的概率；后者指平稳状态下，系统或元件维持其正常功能的概率。当元件或系统的连续工作时间或连续修理时间服从指数分布，并且它的故障率和修复率分别为&λ和μ时，瞬时可用率A(t)可表达为平稳状态可用率A可表达为平稳状态可用率A也可表达为式中MTBF为平均无故障工作时间，MTTR为平均修复时间。上式的物理意义是，在一个平均寿命周期里，平均可用时间与整个平均周期时间之比就是可用率。可用率综合地反映了元件或系统故障特性和修复特性。可用率越高，表明元件或系统的可靠性越好。
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