Based on a failure model of fracture mechanics pattern, this new method deals with the life estimation in the light of the standard promulgated by the Railway Ministry for rail replacement.
在运用断裂力学模式所建立的故障模型基础上,该法用铁道部部颁换轨标准处理寿命估算。
A computational model was presented in estimating residual life of reformer tubes by the method of model.
在应用模型法估计转化管剩余寿命中,本文提出了一个力学计算模型。
Based on the analyzing of costs sample of equipment, set up prediction model of economic life of equipment, considering the middle-linear regression method and period value of costs.
通过对设备费用样本的分析,采用了中间线性回归方法和考虑了货币的时间价值,建立了符合缺省数据费用样本的设备经济寿命预测模型。
The fatigue damage analysis method which is based on fatigue life model is briefly introduced.
并简要介绍了按疲劳寿命模型分析疲劳可靠性的方法。
By analyzing stochastic factors to influence the fatigue crack expandable life, fatigue life model was used and a calculation method for crack size was discussed.
通过分析影响裂纹扩展寿命的多个随机因素,使用疲劳寿命模型,讨论了裂纹尺寸的计算方法。
According to the fault model analysis method, system reliability model for structure is presented based on structure probability design. The life and reliability characteristic measures are studied.
将结构概率设计方法与系统可靠性分析方法相结合,采用耗损故障分析模型,对系统的可靠性特征和寿命特征进行了研究。
The principle and application of a discerning method of distribution model is presented, which could improve the accuracy concerning distribution model identification of product life.
介绍了一种分布模型识别方法的原理及县体应用,有利于提高产品寿命分布模型识别的准确性。
Basing on the study of progressive stress accelerated life test, a rapid evaluation method for electronic device's activation energy is proposed, and the theory model is constructed.
通过对序进应力加速寿命试验的研究,提出了一种快速评价微电子器件失效激活能的方法,建立了计算失效激活能的理论模型。
This paper reviews five methods of calculating healthy life expectancy namely Sullivan method double-decrement method multistate life table method micro-simulation method grade of membership model.
介绍了五种计算健康预期寿命的方法:沙立文方法、递减法、增减状态生命表方法、观仿真法、属等级模型法,并对各种方法的优缺点作了述评。
Basing on the study of progressive stress accelerated life test, a rapid evaluation method for electronic devices activation energy is proposed, and the theory model is constructed.
通过对序进应力加速寿命试验的研究,提出了一种快速评价半导体器件失效激活能的方法,建立了计算失效激活能的理论模型。
The paper establishes the model for the urban life-water quantity prediction by means of combining neural network with the partial least squares method.
将偏最小二乘回归与神经网络耦合,建立了城市生活用水量预测模型。
The generic method to determine equipment update occasion is the model of applying conception of equipment natural life, or technical life, or economic life in isolation.
常用的确定装备更新时机的方法是孤立地应用装备的自然寿命,或者技术寿命,或者经济寿命概念的模型。
On the condition of establishing material's deterioration model, this method can be used as the basis of bridge life-long management system and provides foundation for bridge's maintenance.
在建立材料性能劣化模型的情况下,该种方法可以作为桥梁生命周期成本管理系统的基础,为桥梁养护、管理优化提供依据。
It is shown that this predicting method by Grey-Markov Model was easy to implement, and which is a new method in fatigue life prediction of concrete.
证明了利用灰色马尔可夫链对混凝土疲劳寿命进行预测是一种行之有效的新方法。
According to the characteristics of loads on blades, a model for estimating fatigue life of blades is presented based on three-dimensional finite element method and improved local strain method.
根据汽轮机低压叶片所受载荷的特点,建立了一种基于三维有限元法和改进局部应力应变法的叶片疲劳寿命预测模型。
There have been a lot of problems in the traditional system life cycle method. The new model-oriented approach to system development can well solve these problems.
针对传统的系统生命周期方法存在的问题,一种全新的,面向模型的系统开发方法能够较好地解决了这些问题。
It introduced the technologies on the visualization of structural reliability, such as Finite Element software with graphical user interface, prediction model of fatigue life and implement method.
介绍了结构可靠性可视化相关技术,如通用有限元软件、结构可靠性可视化实现方法等。
Based on residual strength interference model and life interference model, a sensitivity analysis method on reliability was proposed for the fatigue crack growth life of powder metallurgy materials.
结合粉末冶金材料含有非金属夹杂裂纹的特点,以裂纹扩展寿命可靠性分析的剩余强度模型与寿命干涉模型为基础,建立了多夹杂裂纹扩展的可靠性敏度分析模型。
Advanced the mathematical model of the hydraulic components life estimation method and established the relations of the system target cleanliness to the life extension coefficient.
给出了现场条件下液压元件寿命估算的数学模型和系统目标清洁度与寿命延长系数的关系。
According to the accelerated failure model, the assessment method of reliability and calculation method of life period of OCSH were illustrated with example.
依据加速失效模型举例说明了OCSH的可靠性评估和寿命计算方法。
By analysis, a calculation method of the initial time and allowable time for steel-bar corrosion is built. Then a mathematic model for anti-slide pile service life is established.
分析提出了钢筋开始锈蚀时间及钢筋锈蚀时间计算方法,据此提出了抗滑桩安全使用寿命预测数学模型。
METHODS Accelerated test classical constant temperature method, and multi-variation linear model were used to estimate shelf life.
方法 :采用加速试验 ,经典恒温法和多元线性模型预测其有效期。
The utility model has the advantages of novel shape, advanced structure, high performance, simple preparation method, low cost, long service life, and convenient maintenance.
本实用新型具有造型新颖、结构先进、高性能、制造简单、成本低、寿命长、维修方便的优点。
The utility model has the advantages of novel shape, advanced structure, high performance, simple preparation method, low cost, long service life, and convenient maintenance.
本实用新型具有造型新颖、结构先进、高性能、制造简单、成本低、寿命长、维修方便的优点。
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