计算结果表明,在铺层分界面上有十分明显的应力峰,并发现,即使沿铺层厚度使用16个二次元素,这些值仍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.
同时在试验的基础上,推导得植树后断面平均流速减小值和植物坝段床面剪应力的计算公式。
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.
试验得到的主汽阀阀壳应力值将为计算和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.
根据弹性薄板大挠度理论,运用加权残值法分析计算幕墙玻璃的挠度和应力,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是可行的。
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.
本文用一维激光热熔条件计算了与时间效应有关及无关的热应力值,从理论上证明自由振荡激光引爆机理是热起爆;
Through the calculation of thermal stress values, it has been affirmed that free oscillation laser ignition of the explosive is heating ignition.
根据最大残余应力值与材料屈服应力之间的规律关系(由冷胀孔残余应力测试结果得出的)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.
在应用裂纹柔度法计算残余应力时,插值函数及其阶数的选择对计算结果的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.
本文利用弹性力学理论,对圆形补偿器进行应力分析,研究预加应力最佳值的计算方法。
By utilizing theory of elastic mechanics, this paper conducts circular compensator stress analysis. Research gives a calculation method of best pre-stress value.
本文研究了计算保偏光纤中应力双折射特性的微元算法,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.
对于井下某一煤层,通过测试和计算可得到地应力、地层压力、解吸压力以及据以上基础数据而得出的许多推算值。
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.
用解析方法计算了受静水外压载荷作用的有环壳过渡段的锥—柱组合壳中的应力值,并用瑞利法计算了其失稳临界载荷。
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.
本文结合工程实例,介绍预应力钢筋张拉时理论伸长值的计算方法。
The paper introduces the calculation methods of extension of prestressed reinforcement combining with project instance.
运用颈椎周围不同肌肉对颈椎作用力的变化,模拟正常活动范围内颈椎前屈、后伸、侧屈、旋转等多种工况。分别计算并得出相应载荷下钩椎关节、小关节应力值。
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.
实测值与计算值基本吻合,说明结构应力及变形在施工过程中得到了良好的控制。
The measured value basically agrees well with calculated value, which indicates that structure stress and deformation are well controlled during construction.
此值被用来比较材料的强度,但是当设计计算时,要用一个安全系数,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.
第二,用单元的结点坐标、结点应力以及等参插值函数,插值计算这些点的总体坐标及应力。
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.
计算结果表明槽内部环向应力值大于其它任何部位、任一向的应力值。
The result of calculation indicates the value of circumferential stress is higher than any other stress in the whole body.
计算UPPC梁(板)的抗弯强度,关键是确定构件在极限承裁能力时无粘结预应力筋的极限应力值。
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.
给出了实际工程应用中利用数字化张拉系统施工的控制过程记录,以及所测定的预应力损失值与理论计算值的对比。
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.
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挤强度值。
The formula for calculating the axial stress of casing was discussed with theoretic deduction and calculation methods.
利用此式能较方便地计算出带裂纹机架的应力强度因子值。
With this formula the intensity factors of the rollhousings with a crack in the corner can be evaluated conveniently.
虽然偏离值可能不大,但利用对数剖面去计算河底粗糙长度和剪切应力时会引起较大的误差。
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.
主要介绍无粘结预应力钢绞线的原材质量控制、配料、张拉力值、伸长值的计算及施工工艺。
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.
在杆的中部粘贴应变片,由计算机数据采集系统自动记录应力脉冲的值。
Then, the stress pulses can be automatically collected by computer data acquisition system via strain gauge stuck on the middle of the bar.
利用裂纹尖端的奇异元和线性元插值模型,给出了扭转刚度和应力强度因子的边界元计算公式。
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.
本文在位移元本征应力模式基础上引进调节参数,同时,利用矩阵H对角化方法计算杂交元应力子空间的本征应力模式,然后由此方便有效地计算特征值,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.
根据预应力简支钢箱梁的受力特性,考虑预应力索与钢箱梁的相互作用,建立了有限元计算模型,有限元计算值与实测值吻合较好。
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.
压缩负荷和应力的优化结果与理论计算值的误差分别为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是可行的。
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.
然后采用有限元数值计算方法对叶片进行静力分析、模态分析及裂纹应力强度因子计算,最后反推出叶片在旋转状态下振动应力值的大小。
Through static, modal and crack stress intensity factor analysis, the vibration stress of blade under rotating state before fracture can be calculated out finally.
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挤强度值。
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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