• 计算结果表明分界面上有十分明显的应力,并发现即使沿铺层厚度使用16个元素这些没有达到令人满意的精度

    The results show quite distinct stress peaks at layer interfaces, and it was found that even with 16 quadratic elements over the layer thickness these values have not reached an acceptable accuracy.

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  • 同时试验基础,推导得植树断面平均流速减小植物坝段应力计算公式。

    And base on the experiment, calculating formula of cross section mean velocity's reduction after planting and bed shears stress of vegetation dam block are established.

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  • 试验得到主汽阀阀壳应力计算结构改型提供一定依据

    The measured thermal stress values will provide the theoretical base for calculation and modification of the structure.

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  • 根据弹性薄板挠度理论,运用加权法分析计算幕墙玻璃挠度应力,并与幕墙玻璃规范设计进行比较,结果表明,基于非线性理论的设计计算可行的。

    On the basis of elasticity of the large-deflection thin penal, the method of weighted residuals is applied in calculating the stress and deflection of the curtain-wall glass.

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  • 本文用一维激光热熔条件计算了与时间效应有关无关应力从理论上证明自由振荡激光引爆机理起爆

    Through the calculation of thermal stress values, it has been affirmed that free oscillation laser ignition of the explosive is heating ignition.

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  • 根据最大残余应力材料屈服应力之间规律关系(由冷胀孔残余应力测试结果得出)修正已计算出的残余应力场。

    Theoretical results of residual stress is modified with the relation between the largest residual stress and yield stress collected from measurement results of residual stress field.

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  • 应用裂纹柔度计算残余应力函数及其选择计算结果精确性有着较大的影响

    In the evaluation of the residual stress by the crack compliance method, different interpolation functions and their fit order had great effect on the calculation results.

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  • 本文利用弹性力学理论,对圆形补偿器进行应力分析研究预加应力最佳计算方法

    By utilizing theory of elastic mechanics, this paper conducts circular compensator stress analysis. Research gives a calculation method of best pre-stress value.

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  • 本文研究了计算光纤应力折射特性算法,对其计算值进行了理论验证。

    In this paper, we study theoretically infinitesimal element method for calculation of stress birefringence in polarization maintaining fibers.

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  • 对于井下煤层通过测试计算得到应力地层压力解吸压力以及以上基础数据得出许多推算

    The ground stress, formation pressure, desorption pressure and many inferred values, gained from these basic data of a certain coal bed in downhole may be obtained through testing and calculation.

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  • 解析方法计算受静水外压载荷作用的过渡段的锥—组合壳中的应力,并用计算了其稳临界载荷。

    Stresses in cone cylinder shells with toroidal transition inserted are investigated by an analytical method, and buckling pressures for the shells are presented by Rayleigh Ritzs method.

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  • 本文结合工程实例介绍应力钢筋张拉时理论伸长计算方法

    The paper introduces the calculation methods of extension of prestressed reinforcement combining with project instance.

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  • 运用颈椎周围不同肌肉对颈椎作用力变化模拟正常活动范围内颈椎前屈、后伸、屈、旋转等多种工况。分别计算得出相应载荷钩椎关节、小关节应力

    With the changing of muscular force, the movements such as flexion, extension, lateroversion and rotation were imitated, and the stress was calculated under different loads, respectively.

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  • 实测计算基本吻合说明结构应力变形施工过程中得到了良好控制

    The measured value basically agrees well with calculated value, which indicates that structure stress and deformation are well controlled during construction.

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  • 用来比较材料强度但是设计计算时,要一个安全系数使工作应力低于比例限制

    This value is used to compare the strength of materials, but a safety factor is applied when making design calculations, to bring the working stress well below the limit of proportionality.

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  • 第二单元结点坐标、结点应力以及等函数,插计算这些总体坐标应力

    Secondly, the global coordinates and stress values of the points are calculated by using standard isoparametric interpolations, the node coordinates and the known node stresses.

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  • 计算结果表明内部环向应力大于其它任何部位、任一向的应力

    The result of calculation indicates the value of circumferential stress is higher than any other stress in the whole body.

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  • 计算UPPC(板)抗弯强度关键确定构件极限承裁能力无粘结应力筋的极限应力

    The key of calculating flexure strength of UPPC beam is to determine unbounded prestressed tendons ultimate value when the components are under their ultimate load ability.

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  • 给出了实际工程应用中利用数字化系统施工控制过程记录以及所测定应力损失理论计算值对比

    The construction record controlled by digital prestress tension system and the comparison between calculated and tested values of prestressing loss in an actual project are discussed.

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  • 通过实例计算,对比分析了“三应力圆”理论其他几种理论计算抗挤强度

    The formula for calculating the axial stress of casing was discussed with theoretic deduction and calculation methods.

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  • 利用方便地计算裂纹机架应力强度因子

    With this formula the intensity factors of the rollhousings with a crack in the corner can be evaluated conveniently.

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  • 虽然偏离可能不大利用对数剖面计算河底粗糙长度剪切应力时会引起较大误差

    The amount of the departure may not necessarily be large, but it results in the larger errors when the profiles are used to calculate the bed roughness length and shear stress.

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  • 主要介绍无粘结预应力钢绞线原材质量控制配料、张拉力伸长计算施工工艺

    The paper mainly introduces raw material quality control, calculation of burden, stretch-draw force and elongation value, construction technology of non-bonding prestressed steel strand.

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  • 中部粘贴应变片,计算数据采集系统自动记录应力脉冲

    Then, the stress pulses can be automatically collected by computer data acquisition system via strain gauge stuck on the middle of the bar.

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  • 利用裂纹尖端奇异元和线性模型给出扭转刚度应力强度因子边界计算公式

    Using the interpolation models for both singular crack tip elements and other crack linear elements, the boundary element formulas of the torsion rigidity and stress intensity factors were given.

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  • 本文位移应力模式基础引进调节参数,同时,利用矩阵H对角方法计算杂交元应力子空间本征应力模式,然后由此方便有效地计算特征从而大大提高了计算效率。

    The parameters are introduced based on the natural stress modes of the displacement element, and the method of matrix H diagonalization was introduced to improve the calculation of the natural.

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  • 根据应力钢箱梁受力特性考虑应力钢箱梁相互作用建立了有限元计算模型,有限元计算值与实测吻合较好。

    According to the mechanical character of simply supported steel box girder with prestressed tendons, and considering the interaction of tendons and girder, the finite element model is established.

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  • 压缩负荷应力优化结果理论计算误差分别为7.4%、9%,因此利用神经网络和遗传算法进行结构参数优化的方法可行的。

    The errors between optimization values and theoretic results of the compression load and stress are 7.4% and 9% respectively. This method is effective to optimize structural parameters.

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  • 然后采用有限元数计算方法对叶片进行静力分析模态分析裂纹应力强度因子计算最后推出叶片在旋转状态振动应力大小。

    Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.

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  • 通过实例计算,对比分析了用“三向应力圆”理论与其他几种理论计算的抗强度

    The monotone property of multivariate function proved that the maximum stress strength point exists on the inner surface of casing under the triaxial stress conditions.

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