从装备更新的概念入手,简要介绍了几种装备更新的分析方法,如最低费用法、MAPI法、经济寿命法等。
Started with the conception of equipment renewal, several equipment renewal methods are introduced briefly, including lowest-fee method, MAPI method and economic lifetime method.
通过应力修正系数对危险点最大应力进行修正,将应力集中和应力梯度效应引入到寿命的估算中,因而扩大了传统的应力寿命法可适用的寿命范围。
Then the effect of Stress Concentration and the Stress Gradient were introduced into the prediction of fatigue life through Correction Coefficient of Stress with the wider suitable life scope.
比如,密西西比州霍尔摩斯郡男子的平均寿命仅为65.9岁,与巴基斯坦男子相当,比弗吉尼亚费尔法克斯郡男子的平均寿命少了15.2岁。
Men in Holmes County, Mississippi, for example, have a life expectancy of 65.9 years, the same as men in Pakistan and 15.2 years behind men in Fairfax, Virginia.
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。
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.
噪声载荷是一种高频、宽带随机载荷,在低循环疲劳寿命预测中被广泛采用的时域计数法很难直接利用。
Sonic loading is a high frequency, broadband random process. Basic cycle counting methods, which are prevalently used in time domain, are difficult to be applied.
以不同开始接尘年度工龄分布表为基础,用寿命表法计算30年工龄累计尘肺发病率。
Based on exposure time by year and life table, the cumulative pneumoconiosis incidence of 30 year length of service was calculated.
最近,本文第二作者提出了一种海洋结构物疲劳寿命预报的统一方法。
There have been some fatigue life prediction methods in the recent decades, but most of them cannot explain some known fatigue phenomena.
在油气资产的使用寿命内,油气资产弃置义务采用实际利率法确定各期间应承担的利息费用。
Interest expenses from the assets retirement obligations for each period are recognised with the effective interest method during the useful lives of the related oil and gas properties.
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。
A computational model was presented in estimating residual life of reformer tubes by the method of model.
算例结果表明,损伤分离法可以分离蠕变疲劳产生的蠕变损伤和疲劳损伤,很好预测疲劳和蠕变共同作用下的疲劳寿命。
The example demonstrates the capacity of the separation of the fatigue-damage and the creep-damage, and the ability to predict the fatigue life with the creep of the polymethylmethacrylate.
对微波光电导法测量半导体少数载流子寿命的测试系统进行灵敏度分析。
The sensitivity for the semiconductor minority carrier lifetime measurement system was determined using microwave photoconductance decay.
对给定的寿命试验数据x,利用似然比检验法可对该数据是来自截尾指数分布还是截尾正态分布进行判别,但却很难求出似然统计量的分布形式。
For a life data x, whether it comes from the censoring exponential distribution or the censoring normal distribution, it can use the likelihood ratio test to make a decision.
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。
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.
采用锥面磨削法刃磨钻削刀具的后刀面,可显著提高刀具的使用寿命,有利于保证工件加工精度和提高工件表面质量。
As a result of using the cone sharpening method sharpening drilling cutter's Flank, improving surface quality and machining precision, extending the lifetime of the drilling cutter substantially.
使用样本空间排序法给出了指数分布情形下不相同定时截尾试验平均寿命置信下限的估计方法。
Sample space order method is used to give the lower confident limits of mean life under unequal time truncations for exponent distribution.
给出了采用热点应力法进行铸钢节点环形对接焊缝疲劳寿命估算的全过程。
The paper presents the life evaluating process of girth butt welds by hot spot stress method and the calculation methods of hot spot stress range.
在寿命期不等的互斥方案优选中,净年值法是一种合适的方法。
NAV is a proper method for comparison of the schemes with different life.
预测了变幅载荷下给定存活率的疲劳寿命,并用蒙特卡洛法模拟变幅载荷下疲劳试验进行了验证。
The fatigue life with given survivability under variable amplitude loading is predicted, and checked by simulating test using Monte Carlo method.
将改进的平均秩法应用于最小二乘法当中,对导弹某部件可靠性寿命数据进行分析,用程序实现了所提出的方法并在实例中得到应用。
This new method is applied to analyze the life data of the components of missile, and the programs were made for this method and applied in an example.
固定资产折旧采用年限平均法并按其入账价值减去预计净残值后在预计使用寿命内计提。
Fixed assets are depreciated using the straight-line method based on their costs less estimated residual values over their estimated useful lives.
设计了一种利用直接记录法(光子计数法)测量农药荧光寿命的测试系统。
A test system for fluorescence lifetimes of pesticides is designed by means of the direct record method (the Photon Counting Technique).
研究结果表明,弹塑性有限元分析法预测的寿命偏低,由残余应力可以较准确地确定最大应力应变循环。
The result shows that predicting life by elasticity-plasticity finite element analysis is low and the maximal stress-strain cycle can be calculated accurately by the residual stress method.
采用化学沉淀法延长化学镀镍液寿命是切实可行的。
The chemical precipitation method is feasible for extending the life of electroless nickel plating solution.
采用寿命表分析法比较术后复发转移率。
The rates of recurrence and metastasis were evaluated by life table analysis.
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。
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.
介绍了半导体激光二极管(LD)寿命测试中存在的问题,并据此给出了LD高温加速寿命测试的积分球扫描法。
The problems of laser diode life test are introduced, and the integrating cavity scanning (ICS) method is given in laser diodes (LD) high-temperature accelerating life test.
实行物价变动会计模式,采取存货流动计价,依照后进先出法与采用依经济寿命计算的加速折旧法。
Accounting mode for price changing use with stock floating price, and use with accelerating depreciation method in respect of last-in first-out method and economic life.
方法:应用寿命表法和逐步回归分析方法,对某金矿离尘矿工尘肺发病情况进行研究。
Methods: Pneumoconiosis incidence in workers departed from dust of gold mine was studied by life-table analysis and progressively regression analysis method.
提出了MOS电容线性电压扫描法产生寿命测量的新方法。
A new method of measuring generation lifetime from linear-sweep MOS Ct transient was suggested.
提出了MOS电容线性电压扫描法产生寿命测量的新方法。
A new method of measuring generation lifetime from linear-sweep MOS Ct transient was suggested.
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