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- Aimed at the problems of the theory of biaxial stress ellipse, a new method for casing strength design under combined loads the triaxial stress theory is put forward. 针对双向应力椭圆理论存在的问题,提出了解决组合载荷下套管柱强度设计的三向应力圆理论;
- The Bilateral Stress Elliptic(ellipse of plasticit y) Theory is wid ely used in casing strength designing, as an approximate alternative to the four th strength theory. 作为第四强度理论的近似计算,目前在套管柱强度设计中广泛应用双向应力椭圆理论。
- casing strength design 强度设计
- Since casing strength performance can be influenced by many factors, it is hard to confirm casing strength margin and its value. 摘要套管强度性能受多种因素的影响，如何确定套管强度余量及其大小，是一个难题。
- However, the current theory for fatigue strength design is based on Hertz theory which is only applicable to dry contact of smooth surfaces. 然而,现行的齿轮传动接触疲劳强度设计基于仅适用于光滑表面干接触的Hertz理论。
- Strength design from considering the tooth surface pressure lubrication condition and dedendum intensity of two aspects. 强度设计是从考虑润滑条件的齿面压力和齿根强度两个方面进行的。
- As an example with casing damage in Yushulin oil field of Daqing,the paper calculates the relations between injecting pressure,casing stress and casing strength. 以大庆榆树林油田砂岩段的套损情况为例，计算了注水压力、套管应力及套管强度之间的关系。
- Next, carries on the structure endogenic force combination, definite structure control section bending moment, shearing force and axle strength design value. 其次，进行结构内力组合，确定结构控制截面的弯矩、剪力和轴力设计值。
- Aiming at the problem of equivocal correction coefficient formulas of casing strength quoted in the American Petroleum Institute(API),the regularities and distribution of parameters for casing properties of API were discussed. 针对美国石油学会(API)制定的套管强度计算公式中引用的若干个修正系数理论意义不明确的问题,讨论了API套管多个属性参量的分布规律和分布参数。
- By means of these expressions, formulas for calculating the axial and radial forces on the casing are derived and then the influence of steam flooding on casing strength is qualitatively analyzed. 根据这些表达式进一步推导套管轴向力和径向力的计算公式,然后根据这些公式定性地分析注蒸汽采油对套管强度的影响。
- Finite element analysis of escalator metal structure is conducted and some points to need attention in uniform strength design and torsional strength design for the structure optimization are discussed. 基于自动扶梯的金属桁架有限元分析,提出结构优化设计中关于等强度和抗扭设计应注意的问题。
- The analysis of allowable pipe load calculation method and practical example shows that the calculation method suggested is feasible and effective in solving the problems of pipe load strength design. 通过对许用接管载荷计算方法及算例的分析表明，提出的方法是可行的，可有效解决封头接管载荷强度设计问题。
- The requirements for allowable stress design of masonry were retained and strength design provisions were first included in the American Building Code Requirements for Masonry Structures(ACI 530-02/ASCE 5-02/TMS 402-02) in the 2002 edition. 美国《砌体结构建筑规范》(ACI 530-02/ASCE 5-02/TMS 402-02),2002年规范修订版在容许应力设计原理的基础上,首次给出了砌体结构强度设计准则规定。
- The expert working station for limited life time mechanical strength design is a breakthrough in theory and method of traditional strength design and also a king of high and new technology with knowledge economy age characteristics. 机械强度有限寿命设计专家工作站是对传统强度设计理论和方法的突破，是具有知识经济时代特征的高新科技。
- In that case you'll have to clear yourself. 那样，你只得自行辩白了。
- The bevel joint strength of timber frame is a problem that people either attended or evaded in the strength design of timber furniture even in the configuration design of China traditional furniture. 在木家具结构设计中,特别是具有中国传统家具风格的实木家具结构设计中,木框角部斜角榫接合强度是人们既关注的问题。
- In this case, let's start earlier. 既然这样，我们就早点开始。
- The finite element equivalent stress method is one of the two checkout critera ordered by the new design specification for concrete arch dams, and it is a new strength design criterion too. 摘要有限元等效应力法是拱坝设计新规范规定的两种强度校核方法之一，也是新规范规定的拱坝强度设计标准。
- Using Triaxial Stress Circle to Design Casing Strength under Combined Loads 组合载荷下套管柱强度设计的三向应力圆理论
- Nothing short of this could mend the case. 不这样就不能挽回局面。
