1、

The paper uses finite element modeling to simulate the actual mount, package and temperature cycle processes of a PBGA and that strain and stress are analyzed.

用有限元数值模拟了实际微电子封装器件PBGA的部分组装、封装和热循环过程,对器件中应力应变进行分析计算。

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2、

The finite element method is used to analyze maximum temperature, maximum wall temperature of cooled hole and maximum stress of the pre-designed photon shutter. A heat transform coefficient of 0.015 W/ mm~ 2 and bulk temperature 30 ℃ are used in the calculations.

通过有限元方法,分析了挡光器在热交换系数为0.015W/mm2、冷却水温度为30℃的工作条件下,挡光器的最高温度、最高冷却槽壁温以及最大热应力。

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3、

The space finite element analysis indicated that the prestressed concrete box girder's stress and the distortion are sensitive to the change of gradient of temperature pattern.

空间有限元分析表明,预应力混凝土箱梁的应力和变形对温度梯度模式的变化较为敏感。

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5、

Finite Element Analysis of the Temperature Stress of Concrete Perforated Brick Masonry

混凝土多孔砖砌体结构温度应力有限元分析

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6、

At the same time the paper establishes the solid finite element model of T-beam, and analyses the fatigue cracks, and the time-stress history of the reinforcement in tensile region and of the concrete in compressive zone under automobile load spectrum.

同时建立了T型梁有限元实体模型,分析了车辆荷载谱作用下梁的疲劳开裂、压区混凝土以及拉区钢筋的应力时间历程等问题。

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Based on engineering condition, the stress distributions of the 220 kV cable terminal stress cones with 18-boundary conditions shaped different structure shapes and different type of rubber materials were calculated by nonlinear finite element method.

根据工程实际情况,由不同结构形式和橡胶材料组成了18种工况条件,并应用非线性有限元方法分别计算了各种工况下应力锥的应力分布。

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9、

Simulation Test of Contact Stress for Packing Element to Casing

封隔器封隔时胶皮筒接触应力的模拟试验研究

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10、

Finite element of ANSYS, stress response, displacement response and speed response were analyzed this slope blasting excavation by utilizing the transformed accelerated time interval curve from the test speed time interval of blasting vibration as the calculating loads.

利用自编程序,将爆破震动实测速度时程曲线转化为加速度时程曲线作为计算荷载,对该边坡爆破开挖进行了ANSYS有限元模态分析和应力响应、位移响应、速度响应时程分析。

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11、

Finite element inverse analysis of boundary load for tectonic stress field

构造应力场边界载荷反演的有限元逆逼近法

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By use of V notched round bars with different theoretical stress concentration factors as finite element models ( FEM) of tensile screw threads, stress intensity factors ( SIF) of surface cracks of screw threads are calculated.

将拉伸螺杆简化为理论应力集中系数Kt不同的带V形缺口圆杆,采用裂纹尖端为20节点奇异单元的三维有限元模型,对螺杆半椭圆表面裂纹的应力强度因子进行了计算。

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13、

Thick Shell Element Method of Stress Analysis of Propeller Blades

螺旋桨桨叶固有动力特性方法研究螺旋桨强度的厚壳元分析

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14、

The Design of Finite Element Analysis Visualization System for Tectonic Stress Field

构造应力场有限元分析可视化系统设计

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15、

Based on research achievements in some documentaries, with reference to calculating result of thick shell curve elements, an evaluation to 3-D solid element numeric analog simulation performance of 3 different displacement modes is carried out so to provide reference to space stress analysis for curve girders.

以一些文献的研究成果为依据,并以厚壳曲面单元的计算结果作参考,对3种不同位移模式的三维实体单元数值模拟性能进行评价,为曲线梁的空间受力分析提供参考。

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In this paper, the finite element method was used to compute the dynamic stress intensity factor of thick-walled cylinder with edge crack. The suitable programme and the factors affecting dynamic stress intensity factor was studied.

本文应用有限单元法计算了动态内压下含裂纹厚壁筒的动态应力强度因子K1(t),提供了合理的计算方案,研究了不同动载参量对动态应力强度因子的影响。

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18、

In allusion to the new structures emerging in the integral joints, their fatigue performance was gained firstly through the fatigue test, and through a new perspective point of view, the thickness coefficient of box element and secondary stress to research the fatigue problem.

针对整体节点部位出现的新构造,通过疲劳实验首次获得其疲劳性能,并从箱形杆件板厚系数和次应力这些新角度来进行疲劳问题的研究。

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Abstract A general nonlinear finite element code has been applied to thermoelastic stress analysis of directionally solidified air cooled turbine blades.

本文利用大型非线性有限元通用程序对定向凝固结晶的气冷叶片进行了热弹性分析。

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