查询词典 creep

It forecasts creep deformation applying for grey theory through analyzing creeping features of geotechnic grate, which obtaining good fitted effect, it proves that grey theory can forecast creep deformation under selecting reasonable data.

通过对土工格栅蠕变特性的分析研究，采用灰色理论的方法对土工格栅蠕变量进行了预测，得出了较好的拟合结果，证明了在合理选择数据列的前提下，灰色理论可以较准确地预测土工格栅的蠕变量。

In this paper, the 3-D finite element relocating mesh method is used to calculate the temperature field and the thermal creep stress field of spillway dam and mid level outlet dam in certain roller compacted concrete gravity dam, sensitivity analysis have been down with different parameters, such as placing temperature, the location of cooling pipe, cooling temperature, time for water supply, ascended-layer of concrete, intermissive time and different placing time, and the commendatory construction scheme have been put forward in such analysis; according by the test result on the two scheme of concrete aggregate combination (basalt as coarse aggregate and limestone as fine aggregate, basalt as coarse aggregate and basalt as fine aggregate), simulation analysis on temperature field and thermal creep stress field of the commendatory construction scheme have been down, and analysis have also been down on temperature field and thermal stress field of the two different aggregate combination, the result indicates that the spillway dam and mid level outlet dam which adopted these two aggregate combination can both satisfy the require of design crack resistance in concrete, furthermore limestone as fine is better than basalt as fine aggregate; the effect of summer water storage and winter water storage on the temperature field and thermal stress field have been analyzed, comparing with winter water storage, in summer water storage scheme the maximum tensile stress at abnormal concrete in upstream fill is decreased by 0.1～0.3MPa and there are no evidence change of the maximum tensile stress at other parts, which indicate that summer water storage is avail for the crack resistance of upstream fill; according to the simulation calculating result and comparing temperature simulation calculating results and temperature controlling measures of some similarity projects both completed and construction, synthesis appraise have been carried to the design temperature controlling measures of dam, and the temperature controlling measures of this project have been brought forward, all these have great reference value on the design of temperature controlling measures and the optimization of the construction scheme.

本文采用三维有限元浮动网格法仿真计算程序，对某碾压混凝土重力坝的溢流坝段和中孔坝段分别进行了三维有限元温度场和温度徐变应力仿真计算分析，对浇筑温度、冷却水管的布置方式、冷却水温、通水时间、浇筑升程和间歇时间、不同开始浇筑日期等参数进行了敏感性分析，在此基础上提出了推荐的施工方案；根据两种骨料方案(玄武岩粗骨料+灰岩细骨料方案；玄武岩粗骨料+玄武岩细骨料方案)的混凝土性能试验研究成果，对推荐的施工方案进行了温度场和温度徐变应力仿真计算，并对比分析了两种不同骨料情况下的温度场和温度应力，结果表明溢流坝段及中孔坝段采用上述两种骨料均能满足混凝土的抗裂设计要求，且灰岩细骨料优于玄武岩细骨料；计算分析了夏季蓄水和冬季蓄水对坝体温度场和温度应力的影响，夏季蓄水方案与冬季蓄水方案相比，坝体上游变态混凝土区域最大拉应力小0.1～0.3MPa，其他部位最大拉应力无明显变化，夏季蓄水对坝体上游面混凝土的抗裂有利；根据仿真计算成果并通过比较国内一些已建和在建的类似工程的温度仿真计算成果及采取的温控措施，对大坝的设计温控措施进行了综合评价，并提出了该工程的温控措施，对温控设计和优化施工方案具有重要参考价值。

This study on creep behavior of TiAl Polysynthetically Twinned crystals was carried out primarily to understand the effect of lamellar orientations on creep behavior in TiAl alloys with lamellar microstructure. It also provides a theory fundament for microstructure control and design for TiAl alloys.

为了研究片层取向对片层组织TiAl合金蠕变性能的影响，同时为合金的组织控制及设计提供理论依据，本文对TiAl金属间化合物PST晶体（Polysynthetically Twinned Crystal）的高温蠕变行为进行了较为细致的研究，并着重研究了片层相对于外力轴的取向对PST晶体蠕变性能的影响。

The smaller Laves phase particle size results in higher creep strength and longer creep exposure time at the same conditions.

通过与透射电镜对比，表明扫描电镜是分析Laves相的优先使用的方法。

The creep curve is the relationship between changes in index, atherosclerosis of the ascending aorta has a certain impact on the creep characteristics.

说明蠕变曲线是以指数关系变化的，动脉粥样硬化对升主动脉蠕变特性具有一定影响。

To compare ascending aorta creep characteristics of the normal and atherosclerotic animal model to identify the effect of atherosclerosis on ascending aorta creep characteristics.

比较正常和动脉粥样硬化动物模型升主动脉的蠕变特性，确定动脉粥样硬化对升主动脉蠕变特性的影响。

The creep resistance was investigated by means of study on the creep curve and deformation microstructure for new zirconium alloy.

通过对低铌新锆合金板材的蠕变性能曲线和变形亚结构的分析及对微观组织研究探讨了低铌新锆合金的蠕变过程及其抗蠕变性能优越的原因。

Based on the previous results, the method to derive creep constructive model from the indoor experiment data is studied, and these study works are also finished: the reasonable method to determine instance elasto-plastic deformation according to experiment curve, the optimization method to perform curve fitting based on experiment data, the universal method to derive creep constructive model from experiment results.

4在已有研究成果的基础上，对从室内试验数据成果导出流变本构模型的方法进行探讨，研究从室内流变试验曲线上确定瞬时弹塑性变形的合理方法，以及对流变试验数据进行曲线拟合的最优化方法，探讨由室内试验数据成果导出流变本构模型的一般性方法。

The uniaxial and triaxial creep tests of gypsum breccias are made and creep curves under different confining pressure are got.

对石膏角砾岩进行了单轴、三轴蠕变试验，获得了不同围压下的蠕变曲线。

In this paper, the instantaneous deformation and failure characteristics, creep characteristics of gypsum breccias under different confining pressures and stress levels are studied by means of conventional triaxial compression tests and uniaxial and triaxial compression creep test s.

本文通过对石膏角砾岩进行不同围压下的常规三轴压缩试验，单轴以及不同围压下的三轴压缩蠕变试验，研究了石膏角砾岩的瞬时变形及破坏特征，在不同围压及应力水平下的蠕变特征等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。