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应力-强度
相关语句
  stress-strength
     The Bound of Probability for Stress-strength Model in Component Life NBUE
     NBUE分布类应力-强度模型的概率上界
短句来源
     The Reliability Confidence Limit in the Stress-Strength Interference Model
     应力-强度干涉模型可靠度的置信限
短句来源
     Bayesian Reliability Analysis for Stress-strength Models
     应力-强度模型的Bayes可靠性分析
短句来源
     Reliability Calculation for Two Models of Stress-Strength Distribution in a Redundant System
     冗余系统两种应力-强度分布模型的可靠度计算
短句来源
     Life forecast of friction welded joints based on stress-strength Interference model
     基于应力-强度干涉模型的摩擦焊接头寿命预测
短句来源
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  stress-intensity
     for roller bearings K= 3~ 4. After obtaining reliability R through calculation with stress-intensity interference model theory, dynamic load rating C value is calculated and then carry out optimization of design for bearing gcometrical parameters with C value, hence reliability design of rolling bearings is completed.
     采用应力-强度干涉模型理论计算可靠度R后,再计算出额定动载荷C值,并利用C值进行轴承几何参数的优化设计,从而完成轴承可靠性设计.附表1个,参考文献6篇。
短句来源
     The Application of Stress-Intensity Interference Theory to Structural Reliability Evaluation of Tactical Solid Rocket Motors
     应力-强度干涉理论在战术导弹固体发动机结构可靠性评估中的应用
短句来源
     In the condition of assuming that stress and intensity obey normal distribution,the basic method of reliability design,stress-intensity interference model is discussed.
     在假设应力和强度服从正态分布的条件下,讨论了零件可靠性设计的基本方法———应力-强度干涉模型及相关计算公式。
短句来源
     To meet the high requirement of structural design and safety evaluation for the pressure vessel,the traditional safety coefficient design was substituted by the reliability design in its structural design with the application of the statistical principle and the same failure probability,based on the stress-intensity interference model.
     为实现FWRP压力容器结构设计和安全评定的高目标,引入可靠性理论,应用统计学原理,基于应力-强度干涉模型,以同一失效概率为标准进行FWRP压力容器结构设计,以取代现应用的传统安全系数法设计。
短句来源
     Based on the firing test results of some air-to-air missile motor, its operation process is computer-simulated by the Monte-Carlo method, and then its structural reliability is evaluated based on the stress-intensity interference theory. The results show that the simulated results which agree well with the actual results exhibit the rational and effective structural reliability evaluation.
     根据某空-空导弹发动机的研制试验结果,用蒙特卡洛法进行了计算机模拟,然后再用应力-强度干涉理论进行了发动机结构可靠性评估,结果表明,模拟结果和实际结果相符,结构可靠性评估结果合理、有效。
短句来源
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  stress strength
     Reliability design of the mechanism of sliding leadscrew nut is studied by using the stress strength interference model.
     应用应力 -强度干涉模型 ,研究了滑动丝杠螺母机构的可靠性设计。
短句来源
     If probability density functions of stress and strength are definite, stress strength interference model can be used to calculate reliability using formulation or numerical value integration.
     应力、强度概率密度函数确定可采用应力 -强度干涉模型 ,用公式或数值积分求可靠度。
短句来源
     On the basis of fatigue strength experimentation and working loads testing of diesel engine crankshaft, the probability statistical method is used to analyse the probability distribution function of fatigue strength and working loads, thus obtaining the working reliability of crankshaft under certain confidence level based on stress strength interference theory,the results are satisfactory.
     在柴油机曲轴疲劳强度试验及工况载荷测试的基础上 ,运用概率统计方法 ,得出曲轴疲劳强度与工作载荷的概率分布密度函数 ,进而运用应力 -强度干涉理论对其工作可靠性进行分析 ,结果表明 ,这种方法是可行的
短句来源
     According to the interference theory under the characterisics of stress-strength distribution, the reliable calculaing modulus of mechanical parts under various distribution conditions of stress-strength is determined, which connects stress, strength, structure with reliable calculation.
     根据应力-强度分布特性下的干涉理论,确定了机械零件在应力-强度诸分布情形下的可靠性计算模型,将应力、强度、结构和可靠性计算联系起来。
短句来源
     Two End Cutting-Off-Tail Distribu tion Theory and Its Application to Stress Strength Interference Model
     两端截尾分布理论及其在应力-强度干涉模型中的应用
短句来源
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  “应力-强度”译为未确定词的双语例句
     ②Determination of strainning-intensity: Mean intensity of staining in group A, B, C were 2.93, 2.28, 1.86 MPa respectively.
     ②应力-强度测量结果:A,B,C组平均应力强度为2.93,2.28,1.86MPa。 椎体在中立位应力较小,为2.27MPa;
短句来源
     Equations of calculating reliability of 5 types different kinds of stress and strength com-binations were derived, based on interference theory of stress and strength of reliability calculation,and the high precision solutions of reliability were given by numerical integral.
     依据应力-强度干涉理论,推导出5大类型统计分布及各种不同应力、强度组合下可靠度计算的表达式,并运用数值积分方法给出可靠度的高精度解。
短句来源
     Based on traditional structural vibration analysis,the effects of mean stress and its scatter have been introduced into the vibrational reliability model of structures by use of Goodman curve and the interference theory of stress and strength.
     基于传统的结构振动分析,利用Goodman曲线和应力-强度干涉理论,将结构的平均应力及其分散性的影响引入结构振动可靠性模型。
短句来源
     (2) The random distribution regularity of the parameters were investigated, such as the operation pressure and temperature, main structural dimensions of the parts in the connections, material yielding stresses of the parts and the pretightening loads etc.
     (2)研究螺栓法兰连接系统中介质温度和压力、各元件的主要结构尺寸、材料强度以及预紧载荷等因素的随机分布规律,在紧密性分析方法的基础上,依据应力-强度干涉模型,建立基于可靠度的连接系统寿命预测方法,确定其检修周期,并编制相应的可视化计算软件。
短句来源
     When the distribution is unknown, it is supposed that all of the unloaded fuzes are subjected to the same maximum stress.
     当应力分布规律未知时,假定所有被旋卸的引信都承受了同一最大应力,这样根据应力-强度干涉模型即可方便地求出其可靠度或最大许用扭矩。
短句来源
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  stress-strength
The objective is to minimize the failure index defined (stress-strength ratio) under a given uniaxial load.
      
Inference on Reliability in Two-parameter Exponential Stress-strength Model
      
The problem of hypothesis testing and interval estimation of the reliability parameter in a stress-strength model involving two-parameter exponential distributions is considered.
      
Estimation of system reliability in Brownian stress-strength models based on sample paths
      
Bayesian estimation of system reliability in Brownian stress-strength models
      
更多          
  stress-intensity
Then the formulas of analytic solution of the displacements on the crack surfaces and of the stress-intensity factors of crack border are obtained.
      
Finite element method combined with dynamic photoelastic analysis to determine dynamic stress-intensity factors
      
obtains the general forms of complex stress functions and stress-intensity factors.
      
In these cases the approximate formulas calculating the stress-intensity factors are also presented.
      
The stress-intensity factor (SIF) of the semi-elliptical surface crack in the finite body under extensional stress is sclculated by using the FEM software ANSYS release 5.5.
      
更多          
  stress strength
Reliability analysis of diesel engine crankshaft based on 2D stress strength interference model
      
A 2D stress strength interference model (2D-SSIM) considering that the fatigue reliability of engineering structural components has close relationship to load asymmetric ratio and its variability to some extent is put forward.
      
The initialization difficulty means, when v↑vR (Rayleigh wave velocity), the dynamic stress strength factor K2(t)→+0, and changes from positive into negative in the interval (vR, β).
      
It describes the mean stress strength or the limited damage degree of crust.
      
In this paper, a total criterion on elastic and fatigue failure in complex stress, that is, octahedral stress strength theory on dynamic and static state on the basis of studying modern and classic strength theories.
      
更多          


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本文较有系统地总结了上层建筑强度方面已有的成果,对其中若干主要问题进行分析和探讨并提出了一些新的见解.根据组合梁原理把上层建筑和船舶主体视为两相互弹性支座的梁材,再运用霍夫加(Hovga-ard)的假设(此两梁材的平均相对位移与接缝处的切应力强度成正比)可得出船舶主体——上层建筑的基本微分方程式.作者将上层建筑分为长的和短的,并按船棱和甲板室分别进行讨论,所得之结果与勃拉希(Bleich),希曼斯基和西凡尔斯(Cubepc)按其他方法所得之结果相同.作者证明,不论上层建筑的弯曲方向与船舶主体相同或相反,上层建筑的存在终是使船舶主体所受的弯矩降低,使上甲板的应力降低.此外,还对“反弯的上层建筑”和“最理想的上层建筑”提出了一些看法.

In this paper an infinitely wide plate under pure plastic bending is discussed. The distribution ot stress and the relation between the couple acting on the plate and the corresponding deformation are found under the assumption that the relation between the intensity of shearing stress and shearing strain has the exponential form.The method suggested by the author is also compared with that proposed by R. Hill under the assumption that the plate is ideally plastic. Obviously the two have markeddifference. The...

In this paper an infinitely wide plate under pure plastic bending is discussed. The distribution ot stress and the relation between the couple acting on the plate and the corresponding deformation are found under the assumption that the relation between the intensity of shearing stress and shearing strain has the exponential form.The method suggested by the author is also compared with that proposed by R. Hill under the assumption that the plate is ideally plastic. Obviously the two have markeddifference. The latter gives rise to the discontinuity of stress in the neighbourhood ofthe "neutral layer", while the former always gives a continuous variation of stress.Also, the elastic recovery of plastic strain at the removal of the load is discussed. The result is compared with B. V. Ryabinin's experiment and is found to be in close agreement.It is believed that the present problem has its application in the cold working ofmetals.

本文中假定切应力强度和剪变形强度之间有冪函数的强化关系,从而推出了无限宽板在纯弯曲时的应力分布,及弯短和变形程度间的关系,它和理想塑性条件下得出的解有显著的差别。前者即本文的结果,应力分量是处处连续的,而后者引出的结果,应力分量在中性层处是不连续的。 本文又得出了无限宽板纯弯曲后,卸荷重时形状变化的解答,它和试验结果相当好地符合。显然这样的解答对冷冲压方面弯曲后的弹性回跳有重大意义。

This paper explains the physical meaning of fracture parameter J (J integral) and presents a simple and accurate formula for determining the plane strain fracture toughness with a single three-point bending test piece. Also recommended is the method of testir.g KIC and JIC at the same time with the same test plece. By this method the relation between the stress intensity factor KI and the J integral, and the formula for calculating JIC are verified.The values of the plane strain fracture toughness of the seven...

This paper explains the physical meaning of fracture parameter J (J integral) and presents a simple and accurate formula for determining the plane strain fracture toughness with a single three-point bending test piece. Also recommended is the method of testir.g KIC and JIC at the same time with the same test plece. By this method the relation between the stress intensity factor KI and the J integral, and the formula for calculating JIC are verified.The values of the plane strain fracture toughness of the seven home-made high strength steels tested by this method are given.

本文首先介绍了断裂参数J(能量线积分)的物理意义,给出了测试平面应变断裂初度J_(IC)的一种比较简便而精确的、用三点弯曲试样和单点法计算J_(IC)的实用公式。其次,介绍了用同一试样同时测定K_(IC)和J_(IC)的方法,并用此法验证了应力强度因子K_I与能量线积分J的关系以及本文介绍的J_(IC)的实用计算公式。最后给出了用上述方法测定的七种在给定热处理条件下的国产高强钢的平面应变断裂韧度值。

 
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