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测量应力
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  measuring stress
     A New Method of Measuring Stress with Strain Gage——Two-Directional and Three-Directional Stress Gage
     用应变片测量应力的改进方法——二向应力片及三向应力片
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     The borehole breakout is most believable one among many methods of measuring stress orientation.
     测量应力方向的多种方法中,目前应以井壁崩落给出的结果最为可信。
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     Presented in this work is a new sensor array which is made of periodically symmetric or asymmetric etched multimode optical fiber. It may be applied not only to the damage detection system of structure surface or interior, but also to the surface-mounted embedded optical fiber sensor arrays for measuring stress, strain or temporature.
     提出了一种采用周期性对称或不对称刻纹多模光纤组成的新型光纤传感网络,既可用作组构表而或内部的损伤探测系统,又可用作表面贴装或埋置于结构内测量应力、应变或温度的传感器阵.
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  “测量应力”译为未确定词的双语例句
     The frontal X-rays of the knee were assessed, the mean value of the varus force-stress test was 8.47°(varus 2°-varus 20°), and the mean value of the valgus force-stress test was 3.63°(varus 7°-valgus 12°).
     膝关节X线正位片测量,应力下内翻平均8.47°(内翻2°~内翻20°),应力下外翻平均3.63°(内翻7°~外翻12°)。
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     The result of the measurement shows that the maximum stress on the gin pole is 120.8 MPa and that on the mast is 191 .2MPa,the measured values are very close to the calculated values,and this proves the hoisting method correct.
     测量结果表明,人字架最大应力120.8MPa,井架最大应力191.2MPa,实际测量应力值与理论计算值十分接近,说明起升方法正确。
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     These data furnish a experimental foundation for confronting different stress measurement methods.
     为使用不同方法测量应力提供了互相比较的实验依据。
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     The experimental basis and the physical foundation are offered for the measurement of stress and temperature abnormality with the infrared remote sensing, and for the engineering stability monitoring and unstability prediction, etc.
     为红外遥感测量应力和温度异常用于工程稳定性监测和失稳预测等领域 ,提供了实验依据 ,奠定了物理基础 ,具有广泛的应用价值和前景
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     The principle, design and calibration of piezoelectric current quartz-gauge, used for measuring stress- time history in solids are discussed in this paper.
     本文讨论了用于测量应力-时间历史的短路电流石英传感器的原理,设计及标定问题。
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  相似匹配句对
     Acoustoelastic Measurement of Stress
     声弹性应力测量
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     MEASURING THE STRESS OF CLAY LAYER
     粘土层的地应力测量
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  measuring stress
Forward gated-diode method for directly measuring stress-induced interface traps in NMOSFET/SOI
      
Measuring Stress Velocity Index Using Mean Blood Pressure: Simple yet Accurate
      
A technique for measuring stress waves emitted during slow crack growth is briefly described.
      
Major differences from the normative data occurred on scales measuring stress associated with dependency and management, cognitive impairment, limits on family opportunity, and life-span care.
      
The Stress Survey Schedule is an instrument for measuring stress in the lives of persons with autism and other developmental disabilities.
      
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The Principle of X-ray diffractometer method of macrostress measurement is described in this Paper.Taking Austenitic and ferritic steel for example, the stress measurements were Performed .using a parallel-beam method as well as parafocua-ing and side-inclining methods. A comparison among the results of the three methods is given with the standard errors of less than 5 kg/mm2 and maximum everage errors of less than- 7 kg/mm2 respectively.These data furnish a experimental foundation for confronting different...

The Principle of X-ray diffractometer method of macrostress measurement is described in this Paper.Taking Austenitic and ferritic steel for example, the stress measurements were Performed .using a parallel-beam method as well as parafocua-ing and side-inclining methods. A comparison among the results of the three methods is given with the standard errors of less than 5 kg/mm2 and maximum everage errors of less than- 7 kg/mm2 respectively.These data furnish a experimental foundation for confronting different stress measurement methods.

本文叙述了使用X射线衍射仪法测量宏观应力的原理。以奥氏体钢和铁素体钢为例,采用平行光束法,聚焦光束法及侧倾法测量了应力。比较了它们的测量结果,并给出了三种测量方法的标准误差小于5千克/毫米~2,最大平均误差小于7千克/毫米~2。为使用不同方法测量应力提供了互相比较的实验依据。

A new method for measuring the mode I SIF k_I is introduced in this paper. At first,the symmetry of mode I cracks is utilized so that this method avoids the difficulty to make an artificial crack in the specimen as other experimental methods do. Secondly,the laser holographic interferometry,that is very sensitive for mea- suring displacement,is used to measure the open displacement of the model crack Suriaces,thereby a higher accurate results can be obtained. Finally,in this paper the interference fringes,that...

A new method for measuring the mode I SIF k_I is introduced in this paper. At first,the symmetry of mode I cracks is utilized so that this method avoids the difficulty to make an artificial crack in the specimen as other experimental methods do. Secondly,the laser holographic interferometry,that is very sensitive for mea- suring displacement,is used to measure the open displacement of the model crack Suriaces,thereby a higher accurate results can be obtained. Finally,in this paper the interference fringes,that are the level lines of the open displacement of the crack surfaces,are utilized to determine k_I.In treating data, the Lagrange extrapolation method is used to obtain k_I according to the displacement definition of k_I.Certainly,in the data handling we can also use the gradient method which used for determining SIF from isochromatic fringes. This paper not only discribes the principles of every step of this method,but also makes some primary experiments to verify them.The experimental results show that this method is not only simple and practical,but it also possesses a higher accuracy. Alternatively,the paper also points out the limitation that this method can not be used for mode ⅡandⅢ of cracks.The method can be used for most of mode Ⅰ crack including internat crack and surface crack subjected to tension,bending or both of them. As a new experimental method the discussion in this paper is only a beginning like other methods and its perfection still waits for the works to be down later.

本文提出一种新的测量Ⅰ型裂纹应力强度因子K_I的方法。该方法首先利用Ⅰ型裂纹的对称性,通过力学的等价性来模拟裂纹,这样可以省去其它实验方法中须在试件上开出人工裂纹这一麻烦的步骤。其次,该方法利用了激光全息干涉技术来测量模拟裂纹的裂纹面的张开位移、由于激光干涉术有很高的灵敏度,因此可以提高测量应力强度因子 K_I 的精度。本文最后是利用裂纹面的干涉条纹,即裂纹面的张开位移的等高线图来得到Ⅰ型裂纹应力强度因子 K_I 的,在数据处理中,本文是依据 K_I 的位移定义式并运用多项式插值公式来得到 K_I 的。当然在数据处理中也可类似于光弹性方法用斜率法来得到 K_I。本文不仅论述了新的测试方法的各个环节的基本原理,而且作了一些初步的实验验证,初步尝试的结果表明该方法具有简便实用的特点,且有较高的精度。文中也指出了该方法的局限性,这就是说它不适用于Ⅱ、Ⅲ型裂纹.对于大多数Ⅰ型裂纹都可以使用该方法来测定 K_I,包括内埋裂纹,边裂纹,载荷包括拉、弯或拉弯复合。作为一种新的实验方法,本文所做的一些工作仅仅是开了个头。和其他实验方法一样,其完善与成熟还有待于今后的工作。

The features and typical transducers of measuring stress waves produced by explosion in rocks are presented in this paper.The problems of design and emplacement of stress,strain and particle velocity gages are discussed.The difficulties of stress measurement are pointed out.we consider that the particle velocity gage is better than the stress gage on measuring stress waves in rocks.The necessity of evaluating the measured data,the relation of stress and particle velocity,the effects of rock cracks on measured...

The features and typical transducers of measuring stress waves produced by explosion in rocks are presented in this paper.The problems of design and emplacement of stress,strain and particle velocity gages are discussed.The difficulties of stress measurement are pointed out.we consider that the particle velocity gage is better than the stress gage on measuring stress waves in rocks.The necessity of evaluating the measured data,the relation of stress and particle velocity,the effects of rock cracks on measured results and the reliability of fitting expressions from the measured data are discussed

本文介绍了岩体爆炸应力波测量的特点和使用的典型传感器,讨论了应力、应变和质点速度测量传感器设计和安装有关的回题。指出了应力测量的种种困难,认为在测量应力波时用质点速度计比用应力计好。文章还讨论了岩体爆炸应力波测值评价的重要性、应力测值和质点速度测值的关系、岩体裂隙对测值的影响和有关测值数学拟合式的可靠性问题。

 
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