In order to study the superelsticity of porous SMAs under complex loading,a thermo-mechanical model has been used to simulate the stress distribution and the phase transformation in the vicinity of the hole.
初始时,平板处于奥氏体状态,在载荷作用下,在圆孔边界处首先发生相变,并随着载荷的增加,相变区域逐渐向内部扩展。
This paper has studied on processing of inner hole of the piston.
以活塞内孔加工为研究对象,针对圆孔光整加工工艺中存在的缺憾,用一系列的实验和数据,分析了圆孔拉削工艺的优势与存在的问题。
The structure of two typical air-cavity aerostatic bearing such as hole air-cavity and ring air-cavity was analyzed with finite element method,the pressure distribution,load capacity and stiffness of two typical air-cavity aerostatic bearings under different eccentricities were studied.
对圆孔气腔式和圆环气腔式2种典型气腔静压轴承结构进行有限元分析,研究了2种典型结构轴承在不同偏心量下的压力分布、承载力和刚度等的分布规律。
Strength loss and stress concentration in plate weakened by dense circular holes;
圆孔密集分布模板的强度损失与应力集中
The three-dimensional stress concentration(SC) along the walls of circular holes in finite thickness plates has been analyzed by using the finite element(FE) method.
应用有限元法对有限厚中心圆孔板的三维应力集中进行了分析。
This paper respectively studies the effect of hole interval, the number of circular hole and square hole corner s radius on the stress concentration factor (SCF) of finite plate with circular hole by software-ANSYS.
利用ANSYS有限元软件分别对圆孔间距、圆孔数和方形孔圆角半径对含孔带板应力集中系数的影响进行了分析,并与特定情况的试验值进行了对比,两者基本一致。
The effect law on of the size and place of round holes natural .
首先由MARC软件对厚圆板试件进行了模态分析,得出了前四阶固有频率的大致范围,根据该值确定实验中截止频率的取值;接着由敲击法测量了该试件的固有频率,并根据实验结果确定了有限元分析的单元类型与网格布局;最后采用该单元类型与网格布局对等厚厚圆板进行了系列计算,得出了圆孔大小、位置对厚圆板固有频率的影响规律,为挖孔减重提供科学的理论依据。
Based on the method of finite element and experiments together,effects of the size and place of round holes on mid thick round plate are got.
采用有限元和实验相结合的方法 ,得出圆孔的大小、位置对中厚圆板固有频率的影响规律 ,为挖孔减重提供科学的理论依据。
The behavior of the reinforced concrete beam with the circular opening is affected by the enhancing stirrups and diagonal reinforcement.
通过试验 ,研究了采用在圆孔周边设置加强钢环的腹部开设圆孔的钢筋混凝土梁的破坏特点、加强环筋的应变特点、挠度、裂缝宽度及承载力等力学特性 ,指出该形式的加强筋对改善开孔梁的受力性能效果不大 ,远不如孔洞周边配置加强箍筋和斜筋对腹部开设圆孔的钢筋混凝土梁的力学性能影响明
This paper,as the third part of this subject,based on the experiment results deals with the deformation and cracking behavior of the reinforced concrete beam with the circular opening subjected the concentrated load.
本文为腹部开设圆孔钢筋混凝土梁的试验研究的第三部分，在试验结果的基础上，对腹部开设圆孔钢筋混凝土梁的变形性能及开裂情况作了进一步分析。
Anatomical study and clinical application of an new injection inlet in foramen rotundum anesthesia;
圆孔麻醉新穿刺点的形态观测及临床应用
A general survey was made on the foramen rotundum of the external basal surface of the cranium in 60 adults.
60具成人颅骨颅底外面的圆孔观察和测量结果表明:圆孔多呈圆形,其次是卵圆形,其它形较少见。