检查车轮，车架，等变形，弯曲裂纹等情况。
Check wheels, frame, and so deformation, bending cracks and soon.
纤维可以使混凝土弯曲并出现头发丝细的裂纹，而不是直接裂出口子。
The fibers allow the concrete to bend and crack in narrow hair-width fractures rather than gaping splits.
对多种碳素钢在拉伸压缩和旋转弯曲负载下的微小裂纹扩展速率进行了研究。
A study has been done over the small crack growth rate for kinds of carbon steels under push pull and rotating bending.
含裂纹的圆柱体弯曲的研究有十分重要的意义。
The study of bending of cracked circular cylinders is of more significance.
旋转弯曲疲劳强度是抗裂纹扩展能力的判据。
The rotating bending fatigue strength is the criterion of resistance to propagation of hot cracks.
探讨各向异性功能梯度材料裂纹板受纯弯、纯扭、弯扭载荷作用下的弯曲断裂问题。
The bending fracture problems of cracked plate for anisotropic functionally graded materials under loads of pure bending, pure twisting or bending and twisting are discussed.
研究了裂纹转子的弯扭耦合振动特性，分析了扭转对弯曲振动的影响。
In this paper we have researched the bending torsional coupling characteristic of cracked rotor, and analysed the influence about torsional vibration to bending vibration.
通过对钣金弯曲件裂纹产生原因的工艺分析，提出了有效、切实可行的解决措施。
The paper analyzes the reason which caused the bull cracks on the bent metal-plate parts, and introduces a effective and operable method for eliminating such bull cracks.
基于动能密度和弯曲弹簧模型，提出了裂纹梁损伤识别两步法。
A two-step damage identification method of cracked beams is proposed based on the kinetic energy density and the bending spring model.
针对单弧度弯曲大变形无裂纹轴校直问题，根据广义预测控制理论，建立了多步校直行程预测算法。
However to the large deformation shaft without crack, general predictive theory has been applied to built up the multi-steps straightening stroke predictive algorithm.
这种等应力试样在研究弯曲疲劳，尤其是在弯曲条件下研究疲劳过程中裂纹产生和扩展机理时，将显示出明显的优越性。
The superiority of this design over the conventional one will reveal itself in the studies on the mechanisms of crack initiation and growth in fatigue process under bending condition.
大桥的中心可能裂纹而弯曲。
分析了受一对分布式双压电片激励产生弯曲的含裂纹智能梁的动态特性。
The smart beams, with cracks driven by a pair of distributed bi-piezoelectric actuators, were analyzed dynamically.
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.
然后研究了非线性裂纹转子的弯曲振动特性，给出了进入倍周期分叉后裂纹转子的时域特性和频域特性。
The bending vibration characteristic of a nonlinear cracked rotor is then analyzed. The time frequency characteristics of a cracked rotor after entering double cycle bifurcation are introduced.
在承受频繁的弯曲应力作用后，在其焊接热影响区萌生了裂纹源进而发生疲劳开裂。
In frequent bending stress condition, fatigue cracking occurred due to the cracking source had been initiated in welding heat affected zone.
通过TEM—SAD同步原位分析，给出了裂纹扩展和DF Z内晶面畸变的对应过程，通过分析衍射斑点的变化，确定出晶面的畸变有压缩、倾转和局部弯曲等形式。
Synchronized analyses on the process of crack propagation and the lattice plane distortion changing in the DFZ were carried out by using the in situ technique under TEM-SAD.
该方法将单元模态应变能分解为拉压、扭转和弯曲模态应变能，利用单元的主要模态应变能分量与结构固有频率的改变量对结构裂纹位置进行识别。
In the method the modal strain energy of an element is divided into tension modal strain energy, torsion modal strain energy and bending modal strain energy.
本文对921A钢焊接接头在海水腐蚀环境下受弯曲疲劳载菏作用时表面裂纹扩展规律进行了试验研究。
The propagation of surface cracks in welded connections made of type "921A" steel has been investigated experimentally under bending fatigue load and in the corrosive environment of seawater.
通过对弯曲件冷冲模各加工工艺和金相显微组织的分析，分析了冷冲模产生裂纹的原因，并提出了防止裂纹产生的工艺措施。
The causes of crack for cold-working die are analyzed by checking machining technique and observing the microscopic structure, the technical measures to prevent cracks are put forwarded in the paper.
将计算单裂纹结构基频的方法推广到求含多处裂纹梁弯曲振动的近似基频。
An approximate method of calculating the fundamental frequency of bending vibrations of multi-cracked beams is proposed on the basis of a modification of the method for single-cracked structures.
将其引入直接或间接积分方程中，只要对板的外边界进行离散，就可计算有限尺寸裂纹板的弯曲问题。
When it is taken in integral equations, plate bending problems can be calculated only out boundary of the plate should be discretized.
研究了四点弯曲型试件在各种类型载荷作用下的裂纹面位移，并考虑了裂纹尖端塑性区对它的影响。
A crack surface displacement of four-point-bend specimen under three types of loading is studied in this paper.
研究表明，弯曲晶界对裂纹的萌生、长大及扩展，对裂纹的形态及断裂方式，都有显著的影响。
It is shown that the zigzag grain boundary may delay the initiation, growth and propagation of crack, as well as may also influence the crack morphology and the fracture mode markedly.
结果表明，保护性高温烧结工艺的发热体可进行热态弯曲成形，表面没有发现裂纹，试样中的气孔已明显球化。
The result shows that the heating element of protect high temperature burning procedure could heat bend. No crack on the surface was found and pore was evidence spheroid.
对两种晶粒尺寸的中碳钢光滑试样进行了旋转弯曲疲劳试验；应用复型技术监测了短裂纹形成与扩展过程，研究了晶粒尺寸对短裂纹行为的影响。
The process of crack initiation and propagation was observed through replication, and the effect of grain size on the behaviour of short fatigue cracks was studied.
本文从柱体的扭转-弯曲问题的一般情况出发，介绍裂纹切割法的基本思想。
Starting from a general case for problems of torsion-bending of a cylinder, a so called crack-cutting method is presented in this paper.
本文基于弹性动力学理论，分析研究了含有横向周期裂纹的平板中弯曲波的反射与透射问题。
Based on the theory of elastic dynamics, using the governing equation of thin plates, the reflection and transmission of flexural wave in thin plates with an array of periodic cracks were studied.
在裂纹扩展试验中，试样切口后使其弯曲并产生微小裂纹，在试件上继续加力直到裂纹扩大为止。
For crack-opening displacement tests, a specimen is notched and then fatigued by flexing to obtain a fine crack. Force is then applied until the crack begins to grow.
当上下半平面材料参数相同时，可获得受弯曲载荷正交异性复合材料板裂纹尖端应力场，并利用有限元算例分析验证了理论结果的正确性。
When the upper and the lower half-planes are of the same parameters, the stress field of crack of orthotropic composite materials can be obtained. The derived equation is verified with FEM analysis.
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