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stiffness相关的网络例句

查询词典 stiffness

与 stiffness 相关的网络例句 [注:此内容来源于网络,仅供参考]

During the prior fatigue life, fatigue damage induces a very small stiffness reduction value that always may be neglected. In the final fatigue life, the stiffness reduction evidently minishes following the power function.

在疲劳寿命前期,疲劳损伤对复合材料层板产生的刚度降变化很小,可忽略不计;在疲劳寿命后期,刚度降则按幂函数变化显著减小。

Initially, assuming that the contact between cam and tappet is"dry contart", a dynamics model of Hertzin contact stiffness and impact damping is established. Next, with dynamic load on cam—tappet pair from the model, an analysis is made both to unsteady EHD oil film in cam—tappet pair under condition of full and partial lubrtication and to wear characteristics of cam profile. then, according to the fact that the lubrication in cam—tappet contact surface is EHD lubrication, taking the interaction between stiffness and damping of unsteady EHD oil film and rigidity of solid object contact into account, a dynamics equation of valve train relating to the dynamic effect of EHD oil film is built up and solved. Consequently, a further study is made on the dynamic characteristics of valve train under interaction of EHD oil film dynamic behavior and the problem of EHD lubrication in cam—tappet pair. Finally, the dynamic effect of full and partial EHD oil film is studied accordingly.

首先,通过对凸轮—挺杆接触为&干接触&的假设,建立了考虑赫兹&接触刚度&和冲击&阻尼&的配气机构动力学模型,用由此求得的凸轮—挺杆表面动载荷对凸轮—挺杆进行了全膜状态和部分膜状态非稳态弹流润滑分析,并研究了凸轮轮廓的磨损规律;然后,是在凸轮挺杆表面存在弹流动压油膜这一事实的基础上,相当于在动力学方程中考虑非稳态弹流油膜的&刚度&、&阻尼&和固体接触&刚度&的耦合作用,建立并求解了考虑弹流润滑行为动力学效应的配气机构的动力学方程,从而深入地研究了弹流润滑行为与动力学行为耦合作用下的配气机构动力学特征以及凸轮挺杆弹流润滑问题;作为前面工作的对应部分,考虑弹流油膜动力学效应的研究工作也同样分为全膜状态和部分膜状态进行。

ITD is adopted to get dynamic parameters of Bell Tower within traffic vibration amplitude for the first time,on this basis,the stiffness of mortise and tenon joint calculation model is derived through inversion,the questions of dynamic parameters unable to be identified with the traditional methods in environmental noise and the similar timber structure is unreasonably calculated due to tenon and mortise connection stiffness cannot be accurately determined are solved.

在此基础上,通过反演得到木结构榫卯连接计算模型的刚度,解决了噪声环境中无法按传统方法进行动力参数识别及类似木结构由于榫卯连接刚度不能准确确定而无法进行合理计算的问题。

Data mining with decision tree analysis revealed that different combinations of morning stiffness, slight red tongue, joint tenderness and nocturnal polyuria in the CM group, and those of white furin tongue, CRP level, leucocyte count and morning stiffness in the WM group showed different efficacy, whichwere also verified in the randomly chosen verifying set.

决策树分析结果显示:中药治疗组中晨僵、舌淡红、关节压痛程度、夜尿多4项观测指标不同组合患者的中药治疗疗效有差异;西药组中舌苔白、C反应蛋白、白细胞数量和晨僵4项观测指标不同组合患者的中药治疗疗效有差异;同时,决策树分类的结果在随机选取的验证集中也得到了验证。

There is also a belief, from paper, paper direct comparison of the grain direction, easy-to-stiffness and transportation; blowing and horizontal grain direction of the paper is not enough stiffness to the two ends of the easy-to-source or curls, purging and transportation, so you should move the paper direction and straight grain feeding direction parallel to cards and membership cards.

还有一种说法认为,从输纸来看,纸张直丝绺方向比较硬挺,便于吹松和输送;而横丝绺方向纸张挺度不够,两头易于向下或者向上卷曲,影响吹松与输送,所以应将纸张直丝绺方向与输纸方向平行来制卡和会员卡制作。

Then after a semi-rigid joint behavior can be modeled as a finite stiffness rotation spring, base on rotation and displacement equation derive the element stiffness matrixes with semi-rigid connections where the effects of jointed flexibility and shear forces in the connection deformations have been considered in and fixed-end forces are modified. Finally, a program for calculating system reliability of semi-ridge steel frames with Monte carlo method and finite element analysis has compiled for calculating and analyzing.

接着本文在介绍和分析半刚性连接弯矩和转角关系模型的基础上,用带有转动刚度的弹簧表征半刚性连接,推导出半刚性连接的刚度矩阵,对固端力进行修正,同时考虑了剪切变形的影响,编制了半刚接钢结构平面框架的有限元程序BHPFL,并在其基础上编制了基于蒙特卡洛法的Monte Carlo-BHPFL 有限元相结合的方法,进行体系可靠度的分析。

On the basis of mechanics of materials and finite element method, the theoretical analysis, numeric simulation and imitative calculation were carried out on the stiffness of HSK tool system. Calculation formula of the turning angle-bending moment of HSK cutter shank was presented, basic law of the variation of stiffness of HSK tool system was revealed, thus provided the theoretical basis on reasonable employment of HSK tool system to develop its maximum benefit and at the same time possesses important theoretical significance and practical value for developing the new typed tool system of the independent knowledge property right of our country.

基于材料力学理论及有限元法对HSK工具系统刚度进行了理论分析和数值模拟及仿真计算,给出了HSK刀柄变形转角-弯矩的计算公式,揭示出HSK工具系统刚度变化的基本规律,为合理使用HSK工具系统,使其发挥最大效益提供了理论依据,同时对开发我国自主知识产权的新型工具系统具有重要的理论意义和实用价值。

Based on the efficient approach developed above, cases of foundationinhomogeneity with stiffness varying according to an exponential function along the radialdirection, and cases of foundation inhomogeneity with stiffness discontinuity and with weakinterlayer strata on the earthquake response of concrete arch dams as well as gravity damswere analyzed. It is found that taking into account the effect of foundation inhomegeneity forthe earthquake safety assessment of concrete arch and gravity dams has great significance.

在以上理论的基础上,本文充分利用比例边界有限元法能够模拟非均匀无限域的优点,合理地提出了重力坝、拱坝的非均匀无限地基模型,分别研究了地基材料弹性模量沿深度按指数变化的无限不均匀地基和地基中存在断层或软弱夹层时对重力坝和拱坝的地震响应影响。

As we know, support at the both straight edge of ACMR is a elastic support between the hinged support and fixed support, and its stiffness is variational. So the relation between support stiffness and load-carrying capability of ACMR is worth to be studied. Meanwhile, arched roof is generally set on beam at the top of pillar.

众所周知,实际工程中波纹拱两端的直边支座处于铰支和固支之间,属一弹性支座,其弹性刚度是变化的,支座刚度与波纹拱结构受力性能及稳定承载力之间的关系是一个非常值得研究的课题。

These features include plasticity, strain hardening difference between loading and unloading stiffness, and stress dependent stiffness.

具体工程实例的分析,表明了硬化类弹塑性模型在敏感环境下基坑开挖数值分析中的适用性。

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