The theoretical formula for structural computation of buried stiffened - pipes is derived based on the axisymmetric bending theory of cylinders and thereby a program of structural stress computation and design optimization of buried pipes are developed 摘要作者根据圆柱壳的轴对称弯曲理论,推导出地下加劲埋管结构计算的理论公式,并据此编制出地下埋管结构应力计算和设计优化程序。
This article has analyzed the strain gauge fatigue law , it has carried on the confirmation through the experiment ; summarized inferring the weary condition principle and the method of the strain gauge from the zero creep and the sensitivity rate of change theoretical formula 摘要分析了应变片疲劳规律,并通过实验进行了验证;总结出了利用零点漂移和灵敏度变化率理论公式推断应变片的疲劳状况的原理和方法。
Making use of the " truss + arch " mechanical model , the range of the three shear failure models ( shear - compression failure , diagonal - tension failure and arch - rib failure ) is divided quantitatively , and the theoretical formula of shear resistance of beams and columns is educed 利用修正的桁架+拱抗剪力学模型,定量的划分了梁柱构件受剪破坏三种状态(剪压破坏、斜拉破坏和斜压破坏)的范围,并由此推得梁柱构件抗剪的理论公式。
Abstract : this paper presents an analysis of the moment of inertia ofcoiler in hot strip mill in detail , the derivation of theoretical formula of the inertia and the analysis , taking 2050 hot strip mill for example , of the inertia change rule and the compensation of moment of inertia 文摘:对热轧带钢卷取机的惯性力矩进行了分析,推导出惯性力矩的理论表达式,并结合2050热轧卷取机分析了惯性力矩的变化规律,对惯性力矩进行了补偿。
In order to achieve the auto - detecting of the icing under complex environment , we have put forward an icing detecting method based on the vibration principle in this paper , established the physical model of vibrating - tube ice - detector and got the theoretical formula of its parameters 为了实现复杂环境中结冰的自动探测,本文提出了一种基于振动原理的的结冰探测方法,建立了振管式结冰传感器的物理模型,并推导出了其参数的理论计算公式。
Abstract : based on the deformation characteristics of the tread element at typical load cases , this paper determines the displacement functions of the element by using the energy method and derives the theoretical formulae for the apparent compressive stiffness and shearing stiffness calculation 文摘:根据轮胎胎面单元在典型工况的变形特点,用能量法确定了胎面单元变形的位移函数,导出了轮胎胎面单元表观压缩刚度和表观剪切刚度的理论计算式。
By analyzing phase angle of meshing geometric drawing position , the theoretical formula of cycloid gear actual operating space of cycloid planetary gear speed reducer is driven , at the same time , fitting a curve , and discussing engineering significance of function curve to combine reality 摘要通过分析啮合相位角几何图形的位置,推导出摆线针轮行星减速器中摆线轮实际工作范围的理论公式,画出了啮合相位角函数的拟合曲线,并结合实际讨论其函数曲线的工程意义。
In this paper , we discuss the relationship of the theoretical formula for anchoring energy and other phenomenological formulas . in the case of one - dimension the theoretical formula return to rp formula and w1 = a0 , w2 = a - a ( ? ) . when the interaction of two molecules is repulsive potential , the theoretical formula recovers the phenomenological formula of zhao et al 本文讨论了理论公式与其它各种唯象公式间的关系,当用于液晶盒的一维问题时,理论公式化为rp公式,并且w _ 1 = a _ , w _ 2 = a _ - a _ ;当两种分子之间的作用势为排斥势时,由理论公式可得到zhaoet
Making use of the former theory , the shear mechanism of the high - strength concrete column confined with the high - strength continue compound spiral hoop is analyzed taking account of the restriction that high - strength continue compound spiral hoops put on the high - strength concrete . and the theoretical formula of the column ' s shear resistance is put forward , and at the same time the statistical formula is also advanced based on the comparison with the value of test 具体分析了一般梁柱构件的抗剪机理,提出了其理论的和实用的抗剪公式;利用前述理论,结合高强连续复合螺旋箍筋对高强混凝土的约束性能,分析了高强混凝土高强连续复合螺旋箍筋柱的抗剪机理,提出了其理论的抗剪公式,并结合试验数据比较分析地提出了其统计公式。
Abstract : on the basis of general principles of mechanics and critical state soil mechanics theory , a theoretical formula determining the coefficient of earth pressure at rest for cohesionless soil is derived by means of combining hypoplasticity with critical state soil mechanics . the formula has a simple form and is only related to the effective angle of internal friction of soil . there is a slight difference between the calculated value of the formula and that of other formulae . the further investigation of the formula shows that it can be used to determine the coefficient of earth pressure at rest of cohesionless soil 文摘:在满足一般力学原理和临界状态土力学理论的基础上,本文将亚塑性理论与临界状态土力学相结合,推出了一个计算无粘性土静止土压力系数的理论公式.该公式形式简单,仅与土的有效内摩擦角有关,其计算结果与常见的多个经验公式的计算结果只有微小的差别.文中讨论结果表明,该公式可用于确定无粘性土的静止土压力系数