非线性有限元分析 - Open Access .click

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Shiyou jixie, 2012
深水卷轴铺设系统中立管的结构强度及张紧力等参数是铺设过程中需要严格控制的关键参数。结合我国南海某深水气田开发的具体工程背景，利用ABAQUS有限元软件成功模拟了立管卷轴铺设中上卷、退卷及经过校准器的3个非线性过程，分别给出了3个过程中立管所受到的张紧力大小、应力云图及应变云图，并验证了该工程背景下卷轴铺设各参数选择及控制的合理性。非线性有限元分析结果及所得到的卷轴铺设过程中张紧力等各参数的变化规律，可为深水立管卷轴铺设提供技术参考。
胡显伟 +5 more
doaj

石油钻井工具用非标碟簧力学特性研究

Shiyou jixie, 2012
石油钻井工具常使用非标碟形弹簧缓冲振动，基于大变形弹塑性理论，使用有限元法分析了Φ118 mm非标碟簧在加载过程中的力学特性。分析结果表明，随碟簧压缩位移增加，Von Mises应力、周向应力、轴向应力、轴向变形量、周向变形量和厚度t轴向变形量呈非线性增大趋势。压缩位移小于2.5 mm时，碟簧未出现塑性变形；压缩位移为2.5 mm时，周向应力、轴向应力、轴向变形量和厚度t轴向变形量剧增，且碟簧发生塑性变形。对碟簧进行了刚度试验，压缩位移小于0.47 mm时碟簧刚度约为0.66 kN/mm，压缩位移大于0.
祝效华 +5 more
doaj

型钢混凝土柱粘结滑移性能及ANSYS数值模拟方法研究

, 2006
进行了20个型钢混凝土构件的推出试验、20根型钢混凝土偏心受压柱试验,以及23根型钢高强混凝土柱在反复荷载作用下的试验。通过在型钢与混凝土之间埋设的电子滑移传感器和电阻应变片,得到了粘结应力和内部滑移沿型钢埋置长度的分布规律;考虑了混凝土强度、型钢的保护层厚度和埋置长度,以及横向配箍率等诸因素,建立了型钢混凝土粘结强度的计算公式;分析了构件长细比、荷载偏心距对粘结强度和滑移应变的影响,提出了偏心受压柱粘结滑移本构关系的一般表达式;研究了型钢高强混凝土柱在动力作用下粘结滑移的分布规律和粘结退化机理 ...
李俊华 +4 more
core

[Development and electrophysiological validation of a temporal interference transcranial magnetic stimulation system for mice]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Cui C, Wang T, Zhang Y, Zheng W, Xu G.
europepmc +1 more source

[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Ling Y +6 more
europepmc +1 more source

[Early follow-up study on three-dimensional-printed customized porous acetabular components for reconstructing extensive acetabular bone defects in primary total hip arthroplasty]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Tang S +11 more
europepmc +1 more source

[Progresses on temporal interference electromagnetic stimulation for non-invasive deep brain function modulation]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Zhou T, Yu P, Xu Y.
europepmc +1 more source

[Preoperative serum magnesium as a biomarker for predicting delirium following non-cardiac surgery in elderly patients: a retrospective cohort study]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Yuan M +10 more
europepmc +1 more source

[Finite element analysis of tibial and femoral resection configurations on varus alignment in total knee arthroplasty]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi
Liang C +8 more
europepmc +1 more source

[Efficient separation of gossypol from cotton kernels with copper mediated magnetic molecularly imprinted polymer]. [PDF]

Se Pu
Yang SL +5 more
europepmc +1 more source

有限元分析
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