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cyclic tests
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  循环试验
     By a series of pulsating cyclic tests of 16MnR steel under stress control at elevated temperature,transformation laws of the damage variable were measured at different maximum stresses at the same temperature and different temperature at the same maximum stress.
     通过16MnR钢在中温应力控制条件下的脉动循环试验,测出在相同温度、不同最大应力以及相同最大应力、不同温度下的损伤变量变化规律.
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     Some Problems in the Pulse Cyclic Tests
     脉冲循环试验中的几个问题
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     In recent years,our hydraulics test group has made pressure pulse cyclic tests on the mon-flare tube fittings of the Z-8 helicopter,the cover actuators of the J-8 aircraft and the pressure accumulators of the J-7 aircraft and got some ex- perience for reference.
     近几年来,我们液压试验组,对 Z—8机无扩口导管接头,J—8飞机护板作动筒,J—7飞机蓄压器进行了压力脉冲循环试验。 积累了一些经验。
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     By a series of pulsating cyclic tests of 16MnR under stress control at 420℃, equivalent modulus is selected to define damage variable, whose monotonic and irreversible decline can reflect both damage of cyclic creep and fatigue. At last, stress fatigue damage evolution of 16MnR at 420℃ are given.
     针对16MnR钢420℃应力控制的脉动循环试验,选取“等效模量”来描述循环蠕变和疲劳的综合作用,得到16MnR钢420℃循环蠕变疲劳交互作用损伤演化估算表达式。
     A series of pulsating cyclic tests of 16MnR under stress control at 420℃ were carried out,and equivalent modulus is selected to define the damage variable,whose monotonic and irreversible decline can reflect both damage of cyclic creep and fatigue. The damage evolution equation and life prediction method of 16MnR steel subjected to interaction between cyclic creep and fatigue at 420℃ are given.
     进行16 MnR钢420℃下应力控制的脉动循环试验,选取一种新的损伤参量“等效模量”来描述循环蠕变和疲劳的综合作用,得到16 MnR钢420℃脉动循环时循环蠕变疲劳交互作用下的损伤演化估算表达式和寿命预测方法.
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  循环荷载试验
     Cyclic tests of semirigid end-plate connections in multi-story steel frames
     多层钢框架半刚性端板连接的循环荷载试验研究
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  “cyclic tests”译为未确定词的双语例句
     The results show that the temperature of the sample Fe3O4 added with Mo in its 4 cyclic tests was the lowest, which was 310 -314 ℃(at this time the flow rate of H2 was 300 μmol/(min·Fe-g)) and even lower about 50 ℃ than that of the same kind of the sample that was currently best one. This data have already neared to the standard of IEA.
     结果表明:添加了Mo金属的Fe3O4的4次循环的放氢温度最低,为310~314℃(速率为300μmol/(min·Fe-g)时),低于目前同类最好的储氢材料近50℃左右, 已接近IEA标准。
     The cyclic tests for 304 stainless steel with solution heat treatment under uni-axial cyclic straining and stressing were carried out systematically.
     在室温下对固溶处理的304不锈钢进行了系统单轴应变与应力循环实验。
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     The results of constant current cyclic tests showed that the cyclic performance of the products increased with the amount of chromium-doped, while their initial capacities decreased from 123.3? mAh/g of LiMn_2O_4 to 113.6?
     恒电流充放电实验结果表明:随掺铬量的增加,样品的首次放电比容量降低,当掺铬量由x=0 00增至x=0 12时,初始放电比容量由123 3mAh/g降至113 6mAh/g。
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     The constant-current charge/discharge test was carried out for the original alloy and the regenerated alloy, both showed almost the same discharging capacities of 295 mA·h/g at 0 2 C rate, but the discharge potential of the regenerated alloy was about 20 mV higher than that of the original alloy. The results of the cyclic tests at 1 C rate showed that the capacity reduction of the regenerated alloy was only 27% less than that of the original alloy.
     通过恒电流充放电实验发现 ,再生合金 0 .2 C放电容量达到 2 95 m A· h/ g,与原合金放电容量接近 ,且再生合金的放电电位比原合金高约 2 0 m V. 1 C循环寿命测试结果表明 ,再生合金经过30 0周循环后 ,放电容量仅衰减了初始容量的 2 7% ,较原合金容量衰减缓慢 ,循环稳定性好 .
短句来源
     The cyclic tests for the quenched and tempered 45 carbon steel were conducted to analyze the evolutions of the yield surface radius and the back stress for different strain amplitudes with or without mean strains under strain controlled cycling and under cyclic stress for low or relatively high stress amplitudes with different mean stresses.
     对调质处理的45碳钢进行了不同应变幅值的对称应变和具有平均应变控制下的屈服面半径和背应力演化分析,及具有不同平均应力的低应力、较高应力幅值控制下的屈服面半径和背应力演化分析.
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  cyclic tests
Based on these parameter sets a comparison of both models is performed including monotonic strain controlled tensile tests, creep tests, load relaxation tests and cyclic tests.
      
A series of plastic strain controlled cyclic tests was performed to facilitate the modelling of cyclic plasticity under general multiaxial loading conditions.
      
The cyclic tests with changing strain amplitudes and frequencies are next carried out and model predictions are compared with experimental results.
      
HCl vapor resulted in the deactivation of ZT sorbent with a cycle number at high-temperature due to the production of ZnCl2 while the sulfur removing capacities of ZTC and ZTN sorbents were maintained during 4-5 cyclic tests.
      
The wear mechanisms of carbon coated computer hard disks with laser-textured (LT) and mechanically-textured (MT) surfaces were characterized after contact start/stop (CSS) cyclic tests.
      
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The result of the cyclic test on 25 gas cylinders of medium carbon manganese steel is presented in this paper. The tests show that the transition of the knucle and the cylindrical shell is the vulnerable spot in improper design or manufac- ture. In reference to the data of fatigue tests,a regressive curve of fatigue failure tests is obtained,and on the basis of this curve,with the safety factor 1.6 in stress and safety factor 8 in cyclic life,an optimum fatigue design curve for...

The result of the cyclic test on 25 gas cylinders of medium carbon manganese steel is presented in this paper. The tests show that the transition of the knucle and the cylindrical shell is the vulnerable spot in improper design or manufac- ture. In reference to the data of fatigue tests,a regressive curve of fatigue failure tests is obtained,and on the basis of this curve,with the safety factor 1.6 in stress and safety factor 8 in cyclic life,an optimum fatigue design curve for the cylinder base design is presented, which lies between the curves of ASME code and B. S. 5500 and is available for design use.

本文提供了25只国产中碳锰合金钢三心凹底气瓶疲劳试验的基本结论,试验表 明:三心凹底气瓶如果设计或制造不当,瓶根是疲劳失效的薄弱环节;讨论了压力容 器疲劳设计方法;根据气瓶疲劳试验实测数据,获得了瓶底疲劳失效的试验“最佳” 曲线。并以此为基础,取应力安全系数为1.6.寿命安全系数为8,首次提出了中碳 锰合金钢三心凹底气瓶底型设计的疲劳设计曲线,供气瓶设计使用.

It is shown from a set of cyclic tests that a brick wall is damaged by a combination of repeated loading reversals and high load excursions. In view of this, seismic damage to brick structure is expressed in terms of maximum deformation and accumulated energy dissipation from repeated cyclic loadings.Based on 45 test restoring force curves of brick wall, a two-parameter seismic damage model is obtained. This model is represented in terms of a "damage index" which is a nonlinear function of...

It is shown from a set of cyclic tests that a brick wall is damaged by a combination of repeated loading reversals and high load excursions. In view of this, seismic damage to brick structure is expressed in terms of maximum deformation and accumulated energy dissipation from repeated cyclic loadings.Based on 45 test restoring force curves of brick wall, a two-parameter seismic damage model is obtained. This model is represented in terms of a "damage index" which is a nonlinear function of maximum deformation and accumulated energy dissipation, and follows Weibull distribution. The damage index is checked and calibrated by using the results of nonlinear stochastic seismic response analysis of 37 damaged brick buildings from past earthquakes.

本文基于45个砖墙的重复循环加载试验的恢复力曲线,经统计分析求得一个砖结构的双参数地震破坏模型。此模型由一“破坏指标”表示,它是最大变形和累积能量耗损两个参数的非线性函数,其统计特性服从威布尔分布。对所求得的“破坏指标”,利用遭受地震破坏的37幢多层砖房的非线性随机地震反应分析结果进行了检验和标定,给出了有实用价值的结果。

An accelerated cyclic test for the positive electrode in lead--acid battery has beencarried out for studying the effect of some additives on the behaviour of the positive activematerials. Two mixed additives selected was found to be more effective, with which thecapacity of the active materials was enhanced by 10--15% and the number of the charge-discharge cycles was increased from 19 to 26. The structure and electrochemical properties of the active materials have been investi-gated by the x-ray differaction,...

An accelerated cyclic test for the positive electrode in lead--acid battery has beencarried out for studying the effect of some additives on the behaviour of the positive activematerials. Two mixed additives selected was found to be more effective, with which thecapacity of the active materials was enhanced by 10--15% and the number of the charge-discharge cycles was increased from 19 to 26. The structure and electrochemical properties of the active materials have been investi-gated by the x-ray differaction, scanning electron microscopy and cyclic voltammetric me-asurements.It was shown that addition of cobalt ion increases the content of α-PbO_2,addi-tion of phosphate makes the crystallite of the active materials finer, but addition of silici-de and fibre only partly strengthens the mechanical property of the material. The effect ofPO_4~(3-), Co~(2+) ions on cyclic voltammetry of the lead positive electrode has been discussedas well.

本文采用加速循环寿命手段,研究了几种添加物对铅酸蓄电池正极活性物质容量,及软化脱粉的影响。筛选出两种较好的复合添加物配方,它们可使活性物质的容量提高10—15%,在加速寿命试验中,循环周期从19增加到26。利用x-射线衍射,扫描电镜以及动电位极化曲线法研究了活性物质结构和电化学性能。 结果表明,添加Co~(2+)可增加αPbO_2的含量;添加PO_4~(3-)可使晶粒变细;添加硅化物、纤维只起机械强化作用。本文也讨论了PO_4~(3-),Co~(2+)离子对铅正极动电位极化曲线的影响。

 
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