变形

Rubber materials as object of research were extended uniaxially. During deformation of materials, the displacements were recorded and analyzed by the method of template matching. Then, both displacements were compared.

使用橡胶材料作为研究对象，在材料测试仪上对材料进行拉伸，拉伸过程中对材料拍照，同时记下材料的变形量，然后用模板匹配的方法分析材料的变形量，最后把这两个变形量进行比较。

The main cause of the deformation is two-fold: one is measurementunder, the other is thermal deformation.

变形的原因主要有两方面，一是拉伸变形，二是热变形。

The results show that the reduction of free height of steel 44Si2CrV spring under compressive stress 900 MPa consists of two parts: plastic deformation of surface decarburized zone to hinder elastically deformed internal material recovering, making up 84% of total reduction of free height and creep of steel at ambient temperature makin...

结果表明，44Si2CrV钢弹簧在900 MPa的应力下压缩72 h，自由高度的缩短由两部分组成：表面脱碳层的塑性变形，造成对内部材料的牵制而使部分弹性变形不能恢复，由此所造成的弹簧自由高度缩短占总变形量的84％；钢的室温蠕变，占自由高度缩短的16％。

From the view of initial deformation,the dual intercrossed iterative method is developed to determine the initial deformations of cables and hangers,sequential method based on initial deformations to simulate the tensioning process in batches,and converse iterative method in sequential anal.

本文从索初始变形的角度出发，针对该类结构的特点，提出了&双重交叉迭代法&确定拉索和吊杆初始变形，索初始变形&顺序分析法&模拟分批张拉施工过程以及索张拉力&顺序分析逆迭代法&解决张拉力已知时的预应力施工过程模拟问题，并将这三种方法进行不同组合，解决各种情况下的多次、分批张拉施工过程分析的问题，由此确立了一套完整的适合该类结构的预应力全过程分析方法。

The traditional free-form deformation methods by using control lattices are not suit for precise control of deformation.

传统的自由变形方法通过计算控制晶格来变形，不适用于精确变形的情况。

Because of the influence of end restraint, the integral measurement of unsaturated and compacted soil specimen overrates the specimen strength and underrates the deformation compared to the real situation; hence the test data cannot stand for the real strength and deformation property of unsaturated and compacted soil.

由于受到端部约束的影响，测量非饱和压实土试样整体变形的试验结果相对真实情况而言强度被提高，变形能力被降低，由此获得的试验数据不能够真实地反映非饱和土的强度和变形性质。

Graph protracting, it can draw corresponding deformation curve of sinking process sinking speed horizontal deformation horizontal deformation speed.

3图形绘制，根据变形监测的成果，可以绘制相应的测点下沉过程、下沉速度、水平变形、水平变形速度等曲线。

The effects of amount of added-Ti and slab reheating temperature on high temperature precipitation have been investigated.

随变形温度的提高、或变形速率的增大或初始变形量的增加，奥氏体再结晶的完成的时间将减少。

The survey and analysis show that when the rut depth is deeper(more than 60 mm),the greater deformation would be found both in wearing course and binder course,and the compression deformation ratio of binder course is higher than that...

测量分析结果表明，车辙深度较深(大于60mm)时，上、下面层均发生了较大的变形，且下面层的压缩变形率大于上面层；当车辙深度较浅(小于40mm)时，下面层的压缩变形率小于上面层。

This paper using the FEM software Marc, for the 50 and 60 degree V groove of flat plate butt joint simulate the one-layer and three layers welding, finish each welding and cooling it down to room-temperature then start the next welding true represent process and get the temperature field, residual deformation and welding residual stress, according to the theory analysis and empirical equation verified the temperature field and residual deformation all correct, comparison with experiment verified the welding residual stress regularity and correctly.

本文利用有限元软件Marc，对开60°和50°V型坡口的平板对接接头，动态的模拟了单层单道打底焊，焊完一道后让试件冷却到室温以及单层单道满焊，每焊完一道后让试件冷却，然后再焊下一焊道，道间温度≤200℃，在以此为初始边界条件下开始下一道的焊接，真实的再现了焊接过程，得出了温度场，残余变形和残余应力场的分布规律，根据理论分析及经验公式验证了温度场以及残余变形的正确性，角变形的大小，这些结果与数值计算相吻合。通过与实验测得的残余应力进行比较，验证了焊接残余应力的分布规律及模拟的正确性。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。