And the stress distribution of cylinder body produced by optimum technique was analyzed.
通过工艺改进，消除了关键部位的缩孔缺陷。
And the thesis investigates the optimum design of Space Grid Structure by means of modified full stress method, and it is obvious that it can getgood effect.
本文还研究了空间网格结构的优化设计问题，通过采用修改后的满应力法对结构进行优化设计，取得了较好的效果。
It is summarized that R1=8 mm, R2=15 mm is the optimum transition radius of stress relief groove.
通过算例分析，得出了应力减轻槽的过渡圆角R1=8 mm，R2=15 mm为最优值。
by firstly controlling stress of section based on sensitivity analysis, method by firstly controlling thrust at springer based on sensitivity analysis, and design method based on optimum theory, are suggested.
同时，为在设计时考虑减小拱脚不平衡推力这一因素，提出了基于敏感性分析的首控截面应力双控设计法、首控拱脚净推力双控设计法以及直接利用优化理论进行设计等3种合理优化设计方法。
In order to consider the reduction of the thrust at springer, three optimization design methods, i. e. method by firstly controlling stress of section based on sensitivity analysis, method by firstly controlling thrust at springer based on sensitivity analysis, and design method based on optimum theory, are suggested.
同时，为在设计时考虑减小拱脚不平衡推力这一因素，提出了基于敏感性分析的首控截面应力双控设计法、首控拱脚净推力双控设计法以及直接利用优化理论进行设计等3种合理优化设计方法。
It was demonstrated that 10℃, pH 6.8 and 1000 r min-1 of mix round was the optimum condition to improve the SOD stability under hot stress, the half life of glycerin entrapment SOD in hot stress at 50 ℃ was 25.1 d, which was 5 times of the natural SOD not glycerin entrapment.
在10℃、pH 6.8、搅拌速度1 000 r min-1条件下包埋的甘油SOD在55℃的平均半衰期为25.1 d，为非包埋SOD的5.1倍。
Optimum stress distribution is obtained by varying the winding tensions from layer to layer.
最佳应力分布得到不同清盘的紧张局势，从一层到一层。
For analyzing craching, cracking modelling is established on the basis of stress-strain relations, where differences in the shap and volume of cracking between different rocks and teeth are discussed. Eventually, the optimum teeth space and cracking efficiency are available, which is meaningful both theoretically and practically to study kinetic rules, performance of cone bits in line with the state of rocks.
预测钻头与岩石碰撞时撞击力大小，钻头的纵向振动速度、加速度，钻头牙齿与岩石碰撞的恢复系数；对接触碰撞过程中破碎坑进行了研究，根据岩石应力应变关系研究破碎坑模型，提出不同的牙齿和岩石，其破碎坑的形状特点和体积存在较大差异，提出了使破岩效率最优的最优齿间距模型，对了解钻头的运动规律、工作性能以及掌握井底岩石状态上具有一定理论意义和使用价值。
Resistance force and power requirement were investigated for the optimum design of furrow opener that showed the lowest stress distribution.
用于模拟分析的非光滑结构表面的材料分别选择钢和超高分子量聚乙烯两种材料，选用超高分子量聚乙烯材料主要是考虑这种材料具有类似于蜣螂表面一样的疏水特性。
By combining the imitative full stress design method for structural optimization of discrete variables with the finite element analysis method, the structural optimum procedure is given, and a computer program is developed.
采用离散变量的拟满应力结构优化设计与有限元分析相结合的方法，给出优化计算的步骤，编制相应的计算程序。
Through introducing an imitative full stress design operator in genetic algorithm, a optimum design technique was proposed for section optimization of frame structure with discrete variables, namely the section optimization technique of frame structure based on full stress design and GA.
通过在遗传算法中嵌入拟满应力算子，提出了一种以网架结构杆件截面作为离散变量的优化设计方法，即基于拟满应力设计和遗传算法的网架截面优化方法。
In this paper, based on the knowledge about the change in the microstructures and mechaniacal properties of the cast irons with the influence of temperature, stress and thermo—mechanical circulated load in working cycle of ingot mould, the temperature and stress fields have been analysed by means of thermo-elastic-plastic finitive element, and futher, the behavior of thermal stress factors in every working cycle of the mould have been investigated, by which principles for optimum design of ingot mould's structure has been put out.
本文以钢锭模一个使用周期内的温度场、应力场及热一力循环载荷作用下铸铁的组织结构和力学性能的变化规律为基础。利用热弹塑性有限元法对钢锭模使用过程中的温度场及应力场进行了分析，并进一步研究了钢锭模在每个使用周期间的热应力参数的变化规律，提出了钢锭模结构优化设计的基本原则。
Optimum design of large cone angle thrust tapered roller bearings for rolling mills has been firstly introduced in this paper, together with systematic analysis of bearing internal force, roller contact stress, large rib taper face types and rib strength calculation of inner ring.
本文首次对大锥角轧机止推圆锥滚子轴承进行优化设计，并且对该类轴承的内部受力状况和滚子的接触应力、内圈大挡边锥面形式和内圈挡边强度计算进行了深入系统的分析。
Hollow, U shaped and salient structures are analyzed thru their displacement, stress and frequency. The analysis shows that the hollow fork structure has the smallest displacement and the optimum condition.
空心牙叉结构最佳化分成四个方案进行，首先在相同负载下选定可变的参数，经最佳化分析后找出最适当的截面尺寸。
This paper systematically studied the static and kinameticshakedown theorems. Mathematical program formula to solve shakedown prob-lemus are deduced intergating with the characteristcs of computing mechanics. Shakedown optimum design of plate structures is analyzed for the first time. On thebasis of yield criterion linearization of plate structures and the self-equilibratedresidual generalized stress fields are simulated by the temperature stresses con-taining temperature constants, the shakedown analysis of plate structures and theiroptimum shakedown design are boiled down to solve a linear mathematicalprogram, and the minimum shakedown thickness of rectangular plates under mov-ing patch loadings are successfully computed. To study the shakedown problems ofcombined rotation shells with initial geometric imperfections, the paper deducedthe strain and displacernent relationship of general shells with initial geometricimperfections with the aid of introducing the concept of imaginary strains. On thebasis of elastic finite element analysis of sub-region structures the lowershakedown limit of combined rotation shells with initial geometric imperfections isstudied, and the finite element formula of shakedown analysis is given. Kinematichardening trait of shell structures is considered for the first time.
本文系统地论述了结构分析中的静力安定定理和机动安定定理，结合计算力学的特点列出了求解安定问题的数学规划格式，首次分析了板结构的安定优化设计问题，在对板屈服条件线性化的基础上并对板中的残余应力状态用含温度参数的温度应力模拟，把板结构的安定分析和安定优化设计归结为求解一个线性规划问题，成功地计算了矩形板在移动载荷作用下结构的安定下限和板的安定最小厚度；为了研究带初始几何缺陷的组合旋转壳体的安定问题，本文首次引进虚设应变的概念成功地推导出带初始几何缺陷的一般壳体的应变位移关系；在对结构进行分区样条有限元弹性分析的基础上研究了带缺陷组合壳体的安定下限问题，给出了安定分析的有限元列式，其中首次考虑了壳体的随动强化特点。
Objective: To study the effect of bone marrow stromal cells on different intermittent stress and explore the optimum pressure for the activity after prosthesis replacement.
目的：研究间歇性压力培养环境对兔骨髓基质干细胞增殖的影响，探讨假体置换术后活动所需的最适宜压力。
When i〓 doesn't change, there is an optimum value a/R which makes the maximum contact stress in stator equal to one in worm gear.
当参数i〓一定时，存在一最佳a/R值使得定子和蜗杆中的最大接触应力相等。
In this process, knowledge of the internal stress and strain distribution is fundamental to the determination of the optimum process conditions for a given material, such as the number of rotations, the rotational speed and the temperature.
在这个过程，内应力和张力发行的知识对最宜的处理条件的决心是根本的为特定材料，例如自转的数量，旋转的速度和温度。
Optimum design of multiple stress accelerated life test plan under periodic inspection
基于定时测试的综合应力加速寿命试验方案优化设计
Discussion on Stress of Aluminium Plastic Composite Pipe and Its Analysis of Optimum Structure
铝塑复合管受力状态讨论及优化结构分析