爱因斯坦却能证明从恒星来的光线当其经过太阳时变弯曲了。
Einstein was able to prove that light coming from the stars was bent as it passed the sun.
当光线接近一个巨大物体时,光的路径会变弯,就像汽车在弯曲的车库道上行驶一样。
When light passes near a massive object, its path gets bent, like a car driving on a curved, banked road.
当棱柱形梁受纯弯曲时,这些公式给出了它的主力和主变。
These formulae give us the stress and strain in a prismatic beam when it is subjected to pure bending .
本文从非棱柱形梁的弯曲理论出发,推导出了变截面刚架元的单元刚度矩阵和等效结点载荷。
Based on the theory of the bending of non-prismatic beam, the paper has derived a rigidity matrix and the equivalent node load of the rigid-frame element with variable sections.
这张幻灯片现在已有40多年的历史了,它的硬纸框架已变黄和弯曲,但它的影像仍然光亮清晰。
The slide is over 40 years old now, its cardboard frame browned an bent, but the image is still bright and clear.
研究弯曲时空中平面运动刚体的动力学协变方程。
The covariant equation of plane motion body in curved space-time is studied.
纤维模型梁柱单元是目前处理空间杆系双向弯曲与变轴力耦合问题最为实用有效的单元分析模型。
Fiber model beam-column elements are presently one of the most practical and efficient element models handling biaxial bending and variable axial force coupling problems of frame structures.
根据输电线路钢管杆的受力特点,将钢管杆简化成受复杂载荷作用的变截面梁的纵横弯曲和扭转问题,并采用传递矩阵方法进行分析求解。
Based on the stress performance of steel pole of transmission line, the steel pole is simplified as a matter of cross bending and torque with variable sections and complex loads.
采用复变函数法和多极坐标方法,研究了弯曲波对含有多圆孔薄板的散射问题。
Scattering of flexural waves by multiple cutouts and dynamic stress concentration in the thin plates were investigated in terms of the complex variable function method and multi-polar coordinates.
用来描绘木材弯曲蠕变的粘弹性模型都是由一个马克思维尔体和两个开尔文体所组成的六元件模型。
The viscoelasticity model used to describe the bending creep of wood is a six element model composed of one maxwell and two kelvin systems.
将超声波变幅杆与弯曲振动刀杆作为一个系统加以研究。
The ultrasonic horn and bending vibration cutter are studied as a system in this paper.
这弯曲的金属片能自己变直。
论述超声波振动珩磨振动系统的原理,通过振动试验分析振动系统中的变幅杆、弯曲振动圆盘、振动子系统的振动效果。
The principle of vibration systems of ultrasonic vibration honing are discussed. The vibration effect of horn, curved vibrating disc and child system are analyzed by experiments.
提出了考虑剪切变形时变截面梁弯曲和稳定计算的传递矩阵法。
The transfer matrix method for the bending and stability of the variable section beams with shear deformation is presented.
提出了以卷积形式表示的梁-柱弯曲问题的泛函,并给出了损伤粘弹性梁-柱的广义变分原理。
The convolution type functional was offered for the bending of viscoelastic beam column with damage and the generalized variational principle of viscoelastic beam column with damage was presented.
分析了大型多支承变刚度回转窑的力学特征,建立了回转窑轴线弯曲时各托轮受力的力学模型。
The mechanical character of large-scale variable-stiffness rotary kiln under multi-supporting system is analyzed, the mechanical model is set up when the axes is bending.
体现此效应的关键在于推出时变的尾迹弯曲参数KR。
The key to represent this effect is a time-accurate wake curvature parameter KR.
本文根据骨缺损时硬脑膜在脑压作用下的弯曲变形特点,引入抗膨出特性参数:初始变形指数和蠕变指数。
The parameters of anti-protruding properties of dura and substitutes are introduced on the basis of constant creep solution of the dural deflection under the constant intracranial pressure .
应用低温弯曲和弯曲蠕变试验所得数据,给出了破坏能的简单计算方法。
With data obtained from low temperature bending and bending creep test, a simple calculation method is given for calculating rupture energy.
其次,采用弯曲蠕变试验研究了沥青混合料的粘弹特性。
Secondly, bending creep test was practiced to study viscous-elastic characters of asphalt mixtures modified by epoxy resin.
石油钻柱的失效80 %以上都为疲劳破坏,这与钻柱在弯曲和扭转组合下的交变应力有关。
The fatigue rupture made up 80 percent of the total petroleum drillstring failures, which is related to the flexural-torsional alternate stress acted on drillstring.
拉伸强度呈下降趋势,而拉伸断裂伸长率以及冲击韧性则呈先增大后减小的变化趋势,弯曲性能对温湿度交变的环境不敏感。
Tensile strength decreased, while the tensile break extension percentage increased first and then decreased, flexural properties was not sensible to the changing humiture.
经过计算发现,变幅杆的长度对系统振动频率的影响不如弯曲刀杆显著。
The calculation result shows that the length of amplitude lever had less effect on the vibration frequency of the system than that of the curvature cutter holder.
提出了珩磨杆、珩磨头体均不振动的设计思想,分析计算了中心有圆柱孔的压电换能器和变幅杆,以及弯曲振动圆盘等关键部分。
Key parts including piezoelectric transducer and amplitude transformer with a cylindrical hole in the center, and flexural vibration disk are analyzed and calculated.
对油水井套管损伤情况的检测是工程测井的主要内容之一,36臂成像井径测井能较准确判断套管弯曲、变径、变形等情况。
It is one of main content for engineering to estimate effect of casing damage. Technology of 36-finger image caliper can judge bend, changing diameter, distortion of casing.
它既受、交变的拉压应力、又受弯曲应力。
Itsubject, alternating the tension pression stress, the bending stress.
试验表明,这是由于管道受载后,裂纹处管道截面变椭圆及由于管道弯曲变形导致加载过程中力臂的变化所引起。
It is mainly caused by the ovalization of the cracked cross section and the changing of the lever-arm while the pipe is deformed when being bended.
计算结果表明,该方法使用方便,精确度高,适用于变截面杆、板、壳等结构弯曲、稳定和振动的计算。
The calculated results indicate that the present method is simple in use and good in accuracy. The integral matrix method may be used to calculate the bending, buckling and vibration of beams, pla…
提出了纯弯曲梁的蠕变脆断损伤失效分析方法。
This paper is concerned with the evolution equations of creep damage beams under pure bending.
提出了纯弯曲梁的蠕变脆断损伤失效分析方法。
This paper is concerned with the evolution equations of creep damage beams under pure bending.
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