Results 61 to 70 of about 778 (111)

新型装配式可调电缆支架承载力特性及设计方法研究

Jianzhu Gangjiegou Jinzhan
为解决圆形隧道电缆支架存在安装困难、形式多样等问题，提出了一种新型的装配式可调电缆支架型式，并对该新型支架的承载力特性及设计方法展开研究。该支架可实现支架角度的精细化调整，使支架适用于圆形隧道不同角度支撑面，相比于传统的电缆支架，新型装配式可调电缆支架构造简单、连接方便、施工精度高。建立可调电缆支架的有限元模型，在与试验结果对比验证的基础上，对支架变形特点、典型部位应力发展、承载力特性及其关键控制参数展开数值模拟；基于支架的受力特点，提出该支架的承载力理论计算模型 ...
曾二贤, 王思宇, 冯衡, 黄佩, 黄凤华, 张大长   +5 more
doaj   +2 more sources

[Initial exploration of the relationship between homeostatic occlusion and long-term dental implant stability]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Chen J, Wu L.
europepmc   +1 more source

[<i>In vitro</i> mechanical testing and finite element analysis of a novel β-Titanium alloy pedicle screw-rod fixation system]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Li J, Liu Y, Wang D, Li H, He X, Lu T.
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, Yin Y, Zhang Y, Zhang X, Chen G, Duan K, Li Z, Lu X, Jin Z.   +8 more
europepmc   +1 more source

具有T形截面的U形钢板阻尼器滞回性能理论分析与数值模拟

Jianzhu Gangjiegou Jinzhan
U形钢板阻尼器具有耗能能力良好、能够依靠自身变形耗能，以及性能稳定、制作方便、价格低廉等优点，但是也存在初始刚度小和承载能力低的问题。为此，提出一种具有T形截面的U形金属屈服阻尼器（简称阻尼器）。基于虚功原理和卡斯蒂利亚诺第二定理，建立了阻尼器的屈服承载力和初始刚度理论公式。基于非线性混合强化本构模型和三维延性断裂准则，建立了考虑材料延性断裂的阻尼器有限元模型。重点考察了阻尼器的刚度、屈服承载力、耗能能力和破坏模式等。通过参数分析量化了几何尺寸等参数对阻尼器力学性能的影响。研究表明，阻尼器在刚度 ...
邱灿星, 钱慧娟, 王苑佐
doaj  

[Advances in application of hydrogels for treatment of osteonecrosis of the femoral head]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Han G, Li Q, Wang Q, Kang P.
europepmc   +1 more source

[A clinical study on the centralized occlusal scheme for implant-supported overdentures in edentulous patients]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Diao C, Wang S, Li M, Pan S, Liu Y.
europepmc   +1 more source

[Current status and future directions of stability reconstruction following spinal tumor resection]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhou J, Dong J.
europepmc   +1 more source

[Impact of lamina formation range on lumbar biomechanics in unilateral biportal endoscopic spine surgery: a finite element analysis for surgical optimization]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ji S, Ma B, Zou Y, Zhang M, Ren M, Li H, Duan K, Xu C, Zhang C, Ye Y, Zhou P.   +10 more
europepmc   +1 more source

[Effect of different bone grafting methods and internal fixation on mechanical stability of Schatzker type <b>Ⅱ</b> tibial plateau fracture]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Wang Z, Wang Y, Tian S, Wang Z, Zhang R, Lian X, Zheng Z, Zhang Y.   +7 more
europepmc   +1 more source